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Publisher: Springer-Verlag (Total: 2355 journals)

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Showing 1 - 200 of 2355 Journals sorted alphabetically
3D Research     Hybrid Journal   (Followers: 19, SJR: 0.214, h-index: 10)
4OR: A Quarterly J. of Operations Research     Hybrid Journal   (Followers: 10, SJR: 1.073, h-index: 25)
AAPS J.     Hybrid Journal   (Followers: 21, SJR: 1.192, h-index: 74)
AAPS PharmSciTech     Hybrid Journal   (Followers: 6, SJR: 0.718, h-index: 54)
Abdominal Imaging     Hybrid Journal   (Followers: 14, SJR: 0.723, h-index: 60)
Abhandlungen aus dem Mathematischen Seminar der Universitat Hamburg     Hybrid Journal   (Followers: 3, SJR: 0.447, h-index: 12)
Academic Psychiatry     Full-text available via subscription   (Followers: 23, SJR: 0.492, h-index: 32)
Academic Questions     Hybrid Journal   (Followers: 8, SJR: 0.135, h-index: 6)
Accreditation and Quality Assurance: J. for Quality, Comparability and Reliability in Chemical Measurement     Hybrid Journal   (Followers: 26, SJR: 0.378, h-index: 30)
Acoustical Physics     Hybrid Journal   (Followers: 11, SJR: 0.355, h-index: 20)
Acoustics Australia     Hybrid Journal  
Acta Analytica     Hybrid Journal   (Followers: 7, SJR: 0.387, h-index: 6)
Acta Applicandae Mathematicae     Hybrid Journal   (Followers: 1, SJR: 0.624, h-index: 34)
Acta Biotheoretica     Hybrid Journal   (Followers: 5, SJR: 0.419, h-index: 25)
Acta Diabetologica     Hybrid Journal   (Followers: 13, SJR: 1.318, h-index: 46)
Acta Endoscopica     Hybrid Journal   (Followers: 1, SJR: 0.113, h-index: 8)
acta ethologica     Hybrid Journal   (Followers: 4, SJR: 0.465, h-index: 23)
Acta Geochimica     Hybrid Journal   (Followers: 6)
Acta Geodaetica et Geophysica     Hybrid Journal   (Followers: 2, SJR: 0.294, h-index: 13)
Acta Geotechnica     Hybrid Journal   (Followers: 7, SJR: 1.818, h-index: 22)
Acta Informatica     Hybrid Journal   (Followers: 5, SJR: 0.524, h-index: 32)
Acta Mathematica     Hybrid Journal   (Followers: 11, SJR: 8.021, h-index: 47)
Acta Mathematica Hungarica     Hybrid Journal   (Followers: 2, SJR: 0.53, h-index: 29)
Acta Mathematica Sinica, English Series     Hybrid Journal   (Followers: 6, SJR: 0.406, h-index: 30)
Acta Mathematica Vietnamica     Hybrid Journal   (SJR: 0.451, h-index: 5)
Acta Mathematicae Applicatae Sinica, English Series     Hybrid Journal   (SJR: 0.22, h-index: 20)
Acta Mechanica     Hybrid Journal   (Followers: 20, SJR: 0.898, h-index: 52)
Acta Mechanica Sinica     Hybrid Journal   (Followers: 5, SJR: 0.426, h-index: 29)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 5, SJR: 0.525, h-index: 18)
Acta Meteorologica Sinica     Hybrid Journal   (Followers: 3, SJR: 0.524, h-index: 14)
Acta Neurochirurgica     Hybrid Journal   (Followers: 6, SJR: 0.833, h-index: 73)
Acta Neurologica Belgica     Hybrid Journal   (Followers: 1, SJR: 0.348, h-index: 27)
Acta Neuropathologica     Hybrid Journal   (Followers: 5, SJR: 6.61, h-index: 117)
Acta Oceanologica Sinica     Hybrid Journal   (Followers: 3, SJR: 0.295, h-index: 17)
Acta Parasitologica     Hybrid Journal   (Followers: 9, SJR: 0.581, h-index: 28)
Acta Physiologiae Plantarum     Hybrid Journal   (Followers: 2, SJR: 0.551, h-index: 39)
Acta Politica     Hybrid Journal   (Followers: 13, SJR: 0.658, h-index: 20)
Activitas Nervosa Superior     Hybrid Journal  
adhäsion KLEBEN & DICHTEN     Hybrid Journal   (Followers: 5, SJR: 0.103, h-index: 4)
ADHD Attention Deficit and Hyperactivity Disorders     Hybrid Journal   (Followers: 22, SJR: 0.871, h-index: 15)
Adhesion Adhesives & Sealants     Hybrid Journal   (Followers: 8)
Administration and Policy in Mental Health and Mental Health Services Research     Partially Free   (Followers: 15, SJR: 0.795, h-index: 40)
Adsorption     Hybrid Journal   (Followers: 4, SJR: 0.774, h-index: 52)
Advances in Applied Clifford Algebras     Hybrid Journal   (Followers: 3, SJR: 0.319, h-index: 15)
Advances in Atmospheric Sciences     Hybrid Journal   (Followers: 34, SJR: 0.959, h-index: 44)
Advances in Computational Mathematics     Hybrid Journal   (Followers: 15, SJR: 1.255, h-index: 44)
Advances in Contraception     Hybrid Journal   (Followers: 3)
Advances in Data Analysis and Classification     Hybrid Journal   (Followers: 52, SJR: 1.113, h-index: 14)
Advances in Gerontology     Partially Free   (Followers: 8, SJR: 0.141, h-index: 3)
Advances in Health Sciences Education     Hybrid Journal   (Followers: 25, SJR: 1.397, h-index: 42)
Advances in Manufacturing     Hybrid Journal   (Followers: 3, SJR: 0.2, h-index: 4)
Advances in Polymer Science     Hybrid Journal   (Followers: 41, SJR: 0.637, h-index: 89)
Advances in Therapy     Hybrid Journal   (Followers: 5, SJR: 0.79, h-index: 44)
Aegean Review of the Law of the Sea and Maritime Law     Hybrid Journal   (Followers: 7)
Aequationes Mathematicae     Hybrid Journal   (Followers: 2, SJR: 0.882, h-index: 23)
Aerobiologia     Hybrid Journal   (Followers: 2, SJR: 0.511, h-index: 36)
Aesthetic Plastic Surgery     Hybrid Journal   (Followers: 9, SJR: 0.821, h-index: 49)
African Archaeological Review     Hybrid Journal   (Followers: 16, SJR: 0.612, h-index: 24)
Afrika Matematika     Hybrid Journal   (Followers: 1, SJR: 0.248, h-index: 6)
AGE     Hybrid Journal   (Followers: 7, SJR: 1.358, h-index: 33)
Ageing Intl.     Hybrid Journal   (Followers: 7, SJR: 0.337, h-index: 10)
Aggiornamenti CIO     Hybrid Journal   (Followers: 1)
Aging Clinical and Experimental Research     Hybrid Journal   (Followers: 3, SJR: 0.529, h-index: 55)
Agricultural Research     Hybrid Journal   (Followers: 3)
Agriculture and Human Values     Hybrid Journal   (Followers: 13, SJR: 1.197, h-index: 49)
Agroforestry Systems     Hybrid Journal   (Followers: 19, SJR: 0.64, h-index: 56)
Agronomy for Sustainable Development     Hybrid Journal   (Followers: 10, SJR: 1.732, h-index: 59)
AI & Society     Hybrid Journal   (Followers: 6, SJR: 0.171, h-index: 19)
AIDS and Behavior     Hybrid Journal   (Followers: 13, SJR: 2.006, h-index: 71)
Air Quality, Atmosphere & Health     Hybrid Journal   (Followers: 4, SJR: 0.706, h-index: 19)
Akupunktur & Aurikulomedizin     Full-text available via subscription   (Followers: 1)
Algebra and Logic     Hybrid Journal   (Followers: 4, SJR: 0.566, h-index: 18)
Algebra Universalis     Hybrid Journal   (Followers: 2, SJR: 0.388, h-index: 22)
Algebras and Representation Theory     Hybrid Journal   (Followers: 1, SJR: 0.868, h-index: 20)
Algorithmica     Hybrid Journal   (Followers: 8, SJR: 0.898, h-index: 56)
Allergo J.     Full-text available via subscription   (Followers: 1, SJR: 0.183, h-index: 20)
Allergo J. Intl.     Hybrid Journal   (Followers: 2)
Alpine Botany     Hybrid Journal   (Followers: 5, SJR: 0.729, h-index: 20)
ALTEX : Alternatives to Animal Experimentation     Open Access   (Followers: 3, SJR: 1.392, h-index: 32)
AMBIO     Hybrid Journal   (Followers: 15, SJR: 1.094, h-index: 87)
American J. of Cardiovascular Drugs     Hybrid Journal   (Followers: 15, SJR: 0.864, h-index: 39)
American J. of Community Psychology     Hybrid Journal   (Followers: 25, SJR: 1.237, h-index: 83)
American J. of Criminal Justice     Hybrid Journal   (Followers: 8, SJR: 0.634, h-index: 13)
American J. of Cultural Sociology     Hybrid Journal   (Followers: 14, SJR: 0.283, h-index: 3)
American J. of Dance Therapy     Hybrid Journal   (Followers: 4, SJR: 0.175, h-index: 13)
American J. of Potato Research     Hybrid Journal   (Followers: 2, SJR: 0.558, h-index: 35)
American J. of Psychoanalysis     Hybrid Journal   (Followers: 22, SJR: 0.293, h-index: 13)
American Sociologist     Hybrid Journal   (Followers: 14, SJR: 0.18, h-index: 13)
Amino Acids     Hybrid Journal   (Followers: 8, SJR: 1.362, h-index: 83)
AMS Review     Partially Free   (Followers: 4)
Analog Integrated Circuits and Signal Processing     Hybrid Journal   (Followers: 7, SJR: 0.21, h-index: 37)
Analysis and Mathematical Physics     Hybrid Journal   (Followers: 3, SJR: 0.665, h-index: 7)
Analysis in Theory and Applications     Hybrid Journal   (Followers: 1)
Analysis of Verbal Behavior     Hybrid Journal   (Followers: 5)
Analytical and Bioanalytical Chemistry     Hybrid Journal   (Followers: 30, SJR: 1.096, h-index: 123)
Anatomical Science Intl.     Hybrid Journal   (Followers: 2, SJR: 0.301, h-index: 26)
Angewandte Schmerztherapie und Palliativmedizin     Hybrid Journal  
Angiogenesis     Hybrid Journal   (Followers: 3, SJR: 2.212, h-index: 69)
Animal Cognition     Hybrid Journal   (Followers: 16, SJR: 1.122, h-index: 55)
Annales françaises de médecine d'urgence     Hybrid Journal   (Followers: 1, SJR: 0.156, h-index: 4)
Annales Henri Poincaré     Hybrid Journal   (Followers: 3, SJR: 1.377, h-index: 32)
Annales mathématiques du Québec     Hybrid Journal   (Followers: 4)
Annali dell'Universita di Ferrara     Hybrid Journal   (SJR: 0.504, h-index: 14)
Annali di Matematica Pura ed Applicata     Hybrid Journal   (Followers: 1, SJR: 1.167, h-index: 26)
Annals of Behavioral Medicine     Hybrid Journal   (Followers: 12, SJR: 2.112, h-index: 98)
Annals of Biomedical Engineering     Hybrid Journal   (Followers: 18, SJR: 1.182, h-index: 94)
Annals of Combinatorics     Hybrid Journal   (Followers: 3, SJR: 0.849, h-index: 15)
Annals of Data Science     Hybrid Journal   (Followers: 11)
Annals of Dyslexia     Hybrid Journal   (Followers: 10, SJR: 0.857, h-index: 40)
Annals of Finance     Hybrid Journal   (Followers: 28, SJR: 0.686, h-index: 14)
Annals of Forest Science     Hybrid Journal   (Followers: 6, SJR: 0.929, h-index: 57)
Annals of Global Analysis and Geometry     Hybrid Journal   (Followers: 1, SJR: 1.136, h-index: 23)
Annals of Hematology     Hybrid Journal   (Followers: 15, SJR: 1.117, h-index: 62)
Annals of Mathematics and Artificial Intelligence     Hybrid Journal   (Followers: 8, SJR: 0.593, h-index: 42)
Annals of Microbiology     Hybrid Journal   (Followers: 10, SJR: 0.402, h-index: 26)
Annals of Nuclear Medicine     Hybrid Journal   (Followers: 5, SJR: 0.68, h-index: 45)
Annals of Operations Research     Hybrid Journal   (Followers: 10, SJR: 1.186, h-index: 78)
Annals of Ophthalmology     Hybrid Journal   (Followers: 12)
Annals of Regional Science     Hybrid Journal   (Followers: 8, SJR: 0.405, h-index: 42)
Annals of Software Engineering     Hybrid Journal   (Followers: 13)
Annals of Solid and Structural Mechanics     Hybrid Journal   (Followers: 10, SJR: 0.553, h-index: 8)
Annals of Surgical Oncology     Hybrid Journal   (Followers: 14, SJR: 1.902, h-index: 127)
Annals of Telecommunications     Hybrid Journal   (Followers: 7, SJR: 0.315, h-index: 25)
Annals of the Institute of Statistical Mathematics     Hybrid Journal   (Followers: 1, SJR: 0.931, h-index: 31)
Antonie van Leeuwenhoek     Hybrid Journal   (Followers: 5, SJR: 0.992, h-index: 87)
Apidologie     Hybrid Journal   (Followers: 4, SJR: 1.14, h-index: 57)
APOPTOSIS     Hybrid Journal   (Followers: 8, SJR: 1.554, h-index: 87)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 2, SJR: 0.354, h-index: 27)
Applications of Mathematics     Hybrid Journal   (Followers: 1, SJR: 0.274, h-index: 20)
Applied Biochemistry and Biotechnology     Hybrid Journal   (Followers: 42, SJR: 0.575, h-index: 80)
Applied Biochemistry and Microbiology     Hybrid Journal   (Followers: 16, SJR: 0.267, h-index: 26)
Applied Cancer Research     Open Access  
Applied Categorical Structures     Hybrid Journal   (Followers: 2, SJR: 0.361, h-index: 21)
Applied Composite Materials     Hybrid Journal   (Followers: 48, SJR: 0.705, h-index: 35)
Applied Entomology and Zoology     Partially Free   (Followers: 3, SJR: 0.554, h-index: 34)
Applied Geomatics     Hybrid Journal   (Followers: 4, SJR: 0.323, h-index: 9)
Applied Geophysics     Hybrid Journal   (Followers: 8, SJR: 0.541, h-index: 13)
Applied Intelligence     Hybrid Journal   (Followers: 11, SJR: 0.777, h-index: 43)
Applied Magnetic Resonance     Hybrid Journal   (Followers: 4, SJR: 0.358, h-index: 34)
Applied Mathematics & Optimization     Hybrid Journal   (Followers: 4, SJR: 0.955, h-index: 33)
Applied Mathematics - A J. of Chinese Universities     Hybrid Journal   (SJR: 0.275, h-index: 8)
Applied Mathematics and Mechanics     Hybrid Journal   (Followers: 5, SJR: 0.37, h-index: 26)
Applied Microbiology and Biotechnology     Hybrid Journal   (Followers: 61, SJR: 1.262, h-index: 161)
Applied Physics A     Hybrid Journal   (Followers: 7, SJR: 0.535, h-index: 121)
Applied Physics B: Lasers and Optics     Hybrid Journal   (Followers: 23, SJR: 0.983, h-index: 104)
Applied Psychophysiology and Biofeedback     Hybrid Journal   (Followers: 8, SJR: 0.677, h-index: 47)
Applied Research in Quality of Life     Hybrid Journal   (Followers: 11, SJR: 0.288, h-index: 15)
Applied Solar Energy     Hybrid Journal   (Followers: 17, SJR: 0.251, h-index: 6)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 5, SJR: 0.351, h-index: 9)
Aquaculture Intl.     Hybrid Journal   (Followers: 22, SJR: 0.613, h-index: 40)
Aquarium Sciences and Conservation     Hybrid Journal   (Followers: 1)
Aquatic Ecology     Hybrid Journal   (Followers: 32, SJR: 0.646, h-index: 44)
Aquatic Geochemistry     Hybrid Journal   (Followers: 4, SJR: 0.764, h-index: 39)
Aquatic Sciences     Hybrid Journal   (Followers: 13, SJR: 1.172, h-index: 53)
Arabian J. for Science and Engineering     Hybrid Journal   (Followers: 5, SJR: 0.345, h-index: 20)
Arabian J. of Geosciences     Hybrid Journal   (Followers: 1, SJR: 0.417, h-index: 16)
Archaeological and Anthropological Sciences     Hybrid Journal   (Followers: 23, SJR: 1.056, h-index: 15)
Archaeologies     Hybrid Journal   (Followers: 12, SJR: 0.397, h-index: 13)
Archiv der Mathematik     Hybrid Journal   (Followers: 1, SJR: 0.597, h-index: 29)
Archival Science     Hybrid Journal   (Followers: 56, SJR: 0.804, h-index: 22)
Archive for History of Exact Sciences     Hybrid Journal   (Followers: 8, SJR: 0.28, h-index: 15)
Archive for Mathematical Logic     Hybrid Journal   (Followers: 1, SJR: 0.946, h-index: 23)
Archive for Rational Mechanics and Analysis     Hybrid Journal   (SJR: 4.091, h-index: 66)
Archive of Applied Mechanics     Hybrid Journal   (Followers: 5, SJR: 0.865, h-index: 40)
Archives and Museum Informatics     Hybrid Journal   (Followers: 132)
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 4, SJR: 2.841, h-index: 40)
Archives of Dermatological Research     Hybrid Journal   (Followers: 7, SJR: 0.9, h-index: 65)
Archives of Environmental Contamination and Toxicology     Hybrid Journal   (Followers: 12, SJR: 0.846, h-index: 84)
Archives of Gynecology and Obstetrics     Hybrid Journal   (Followers: 17, SJR: 0.695, h-index: 47)
Archives of Microbiology     Hybrid Journal   (Followers: 8, SJR: 0.702, h-index: 85)
Archives of Orthopaedic and Trauma Surgery     Hybrid Journal   (Followers: 8, SJR: 1.039, h-index: 56)
Archives of Osteoporosis     Hybrid Journal   (Followers: 2, SJR: 1.092, h-index: 13)
Archives of Sexual Behavior     Hybrid Journal   (Followers: 10, SJR: 1.198, h-index: 74)
Archives of Toxicology     Hybrid Journal   (Followers: 17, SJR: 1.595, h-index: 76)
Archives of Virology     Hybrid Journal   (Followers: 5, SJR: 1.086, h-index: 90)
Archives of Women's Mental Health     Hybrid Journal   (Followers: 14, SJR: 1.264, h-index: 50)
Archivio di Ortopedia e Reumatologia     Hybrid Journal  
Archivum Immunologiae et Therapiae Experimentalis     Hybrid Journal   (Followers: 2, SJR: 1.2, h-index: 42)
ArgoSpine News & J.     Hybrid Journal   (SJR: 0.102, h-index: 3)
Argumentation     Hybrid Journal   (Followers: 5, SJR: 0.295, h-index: 18)
Arid Ecosystems     Hybrid Journal   (Followers: 3)
Arkiv för Matematik     Hybrid Journal   (Followers: 1, SJR: 0.948, h-index: 22)
Arnold Mathematical J.     Hybrid Journal   (Followers: 1)
Arthropod-Plant Interactions     Hybrid Journal   (Followers: 2, SJR: 0.797, h-index: 17)
Arthroskopie     Hybrid Journal   (Followers: 1, SJR: 0.145, h-index: 8)
Artificial Intelligence and Law     Hybrid Journal   (Followers: 11, SJR: 0.288, h-index: 25)
Artificial Intelligence Review     Hybrid Journal   (Followers: 14, SJR: 0.948, h-index: 48)
Artificial Life and Robotics     Hybrid Journal   (Followers: 8, SJR: 0.231, h-index: 14)
Asia Europe J.     Hybrid Journal   (Followers: 5, SJR: 0.247, h-index: 9)
Asia Pacific Education Review     Hybrid Journal   (Followers: 12, SJR: 0.371, h-index: 17)
Asia Pacific J. of Management     Hybrid Journal   (Followers: 16, SJR: 1.676, h-index: 50)
Asia-Pacific Education Researcher     Hybrid Journal   (Followers: 12, SJR: 0.353, h-index: 13)
Asia-Pacific Financial Markets     Hybrid Journal   (Followers: 2, SJR: 0.19, h-index: 15)
Asia-Pacific J. of Atmospheric Sciences     Hybrid Journal   (Followers: 20, SJR: 1.006, h-index: 14)
Asian Business & Management     Hybrid Journal   (Followers: 8, SJR: 0.41, h-index: 10)
Asian J. of Business Ethics     Hybrid Journal   (Followers: 7)
Asian J. of Criminology     Hybrid Journal   (Followers: 5, SJR: 0.263, h-index: 8)
AStA Advances in Statistical Analysis     Hybrid Journal   (Followers: 2, SJR: 0.681, h-index: 15)
AStA Wirtschafts- und Sozialstatistisches Archiv     Hybrid Journal   (Followers: 5, SJR: 0.195, h-index: 5)
ästhetische dermatologie & kosmetologie     Full-text available via subscription  

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Journal Cover Aquaculture International
  [SJR: 0.613]   [H-I: 40]   [22 followers]  Follow
    
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 1573-143X - ISSN (Online) 0967-6120
   Published by Springer-Verlag Homepage  [2355 journals]
  • The application of two benthic indices to investigate the effects of
           land-based fish farms in coastal transitional ecosystems: two case studies
           in Tuscany region (Italy)
    • Authors: Andrea Alberto Forchino; Fabio Brambilla; Simona Rimoldi; Marco Saroglia; Genciana Terova
      Abstract: Abstract The effects on the benthic ecosystem deriving from the activities of two land-based fish farms located in Italian coastal transitional ecosystems (CTEs) were investigated. Together with chemical and physical analysis, some biological analysis was performed. For each fish farm, three stations were sampled: two stations located inside the farm (ponds exit and farm exit) and one station located outside the fish farm, considered as reference site. The AZTI’s Marine Biotic Index (AMBI) and the BENTIX index were calculated, which are being used in assessing the ecological status of benthic communities within the European Water Framework Directive (WFD). Results were compared in order to evaluate the more suitable index for this study area. Both the indices gave similar results but AMBI resulted more sensitive than BENTIX, probably due to the small size of the collected samples. This study seems to suggest that AMBI, being not dependent from sample size, could be preferred as descriptor of benthic health status in CTEs.
      PubDate: 2018-01-09
      DOI: 10.1007/s10499-017-0224-0
       
  • Effects of stocking densities of tilapia Oreochromis niloticus (Linnaeus,
           1758) with the inclusion of silver carp Hypophthalmichthys molitrix
           (Valenciennes, 1844) in C/N-CP prawn Macrobrachium rosenbergii (De Man,
           1879) culture pond
    • Authors: M. Rezoanul Haque; M. Ashraful Islam; Zohura Khatun; Md Afzal Hossain; Md Abdul Wahab
      Abstract: Abstract The effects of stocking density of tilapia Oreochromis niloticus with the inclusion of silver carp Hypophthalmichthys molitrix were evaluated in the C/N-CP prawn Macrobrachium rosenbergii farming system in triplicate. Management practices were same for all treatments. Bamboo side shoots were posted vertically into the pond bottoms as a periphyton substrate. A locally formulated and prepared feed containing 15.44% crude protein with a C/N ratio 15 were applied twice daily in all ponds. Maize flour was supplied in water for raising the C/N ratio 20 in all treatments. Water quality parameters, except transparency and chlorophyll a, did not differ significantly (P > 0.05) among the treatments. The periphytic abundance and biomass differed significantly (P < 0.05) among the treatments and even among different months. Although the individual harvesting weight, individual weight gain, and SGR were significantly higher (P < 0.05) in the T10000 treatment compared to T15000 and T20000 treatments, respectively, the gross and net yields of tilapia were significantly higher (P < 0.05) in the treatment T20000 followed by T15000 and T10000 treatments resulting in higher combined gross and net yield of both prawn and tilapia (16.05 and 16.92%, 32 and 33.59% from the later two treatments, respectively) with a higher economic return (BCR 0.53) during a 122-day culture period. As a whole, the study revealed that prawn, tilapia, and silver carp with a stocking density at 30,000, 20,000, and 1250 ha−1, respectively, was found to provide an optimum and sustainable production as well as economic benefit in the C/N-CP-based culture system.
      PubDate: 2018-01-07
      DOI: 10.1007/s10499-017-0229-8
       
  • Enhancing the dietary value of palm oil in the presence of lysolecithin in
           tiger shrimp, Penaeus monodon
    • Authors: Hajah Imran Khan; Jagabattuala Syama Dayal; Kondusamy Ambasankar; Eda Purdhvi Madhubabu; Rajabdeen Jannathulla; Vanjiappan Rajaram
      Abstract: Abstract The effect of four iso-nitrogenous and iso-lipidic diets containing soy lecithin and lysolecithin with fish oil (sardine) and palm oil on growth, digestibility, and fatty acid composition of tail muscle and non-muscle portions of tiger shrimp, Penaeus monodon, was evaluated. Shrimp fed with lysolecithin diets had significantly (P < 0.05) higher daily growth coefficient values (1.40–1.45% day−1) than those fed with soylecithin containing diets (1.32–1.37% day−1). Correspondingly, lysolecithin-supplemented diets showed significantly higher (P < 0.05) apparent digestibility coefficients (ADC) of fatty acids with both the oils due to higher emulsification ability of small micelle forming by lysolecithin. However, there were no significant differences in survival and FCR among all treatments. The fatty acid composition of the test diets reflected to a certain extent in the fatty acid composition of the muscle and non-muscle portions of shrimp. Arachidonic, eicosapentaenoic, and docosahexaenoic acid contents of muscle and non-muscle portions of shrimp were significantly (P < 0.05) higher in lysolecithin-supplemented diet compared to soylecithin-supplemented diet. The present results suggest that lysolecithin improved the fatty acid digestibility with its high emulsification properties that reflected in better performance by improving dietary value of palm oil.
      PubDate: 2018-01-03
      DOI: 10.1007/s10499-017-0235-x
       
  • Dietary effects of garlic powder ( Allium sativum ) on growth, blood
           indices, carcass composition, and lysozyme activity in brown trout ( Salmo
           caspius ) and resistance against Yersinia ruckeri infection
    • Authors: Azadeh Zaefarian; Sakineh Yeganeh; Batoul Adhami
      Pages: 1987 - 1996
      Abstract: Abstract In this research, dietary effect of garlic powder on growth parameters, carcass composition, some blood indices, and disease resistance against Yersinia ruckeri was studied in brown trout (Salmo caspius). Two hundred forty juvenile brown trout with mean initial weight of 19.94 ± 1.10 g were divided into 12 tanks (20 juveniles per each tank). Treatments prepared based on different levels of garlic led to four experimental diets including 0 (control), 10, 20, and 30 g/kg garlic powder and were used for 6 weeks. Fish fed 20 g/kg garlic had higher value (P < 0.05) of body weight increasing and specific growth rate than those with other experimental diets. Addition of 30 g/kg garlic led to significant increase in body protein while body fat decreased numerically in 30 g/kg garlic when compared to control diet. Results of blood factors showed that Hb, Hct, WBC, RBC, MCV, MCH, and MCHC did not change by addition of garlic (P > 0.05). Lysozyme activity was improved by increasing the level of garlic in diet (30 g/kg); meanwhile, the use of 20 g/kg garlic caused the highest total protein value. Fish fed diet containing garlic showed higher survival rate against Y. ruckeri than that of control fish. Garlic powder is severely advised according to these results of improving growth, serum factors, and resistance against Y. ruckeri.
      PubDate: 2017-12-01
      DOI: 10.1007/s10499-017-0169-3
      Issue No: Vol. 25, No. 6 (2017)
       
  • Ceratomyxosis infection in cultured striped red mullet ( Mullus surmuletus
           Linnaeus 1786) broodstock
    • Authors: L. Barreiro; R. Caamaño; S. Cabaleiro; M. V. Ruiz de Ocenda; F. Villoch
      Pages: 2027 - 2034
      Abstract: Abstract Striped red mullet is a commercial valuable species for fisheries. Due to its economic importance, captivity studies were carried out to check the suitability of this species to culture conditions. In order to improve it, a wild-caught broodstock was created and kept in captivity for 4 years. Mullets were very susceptible to handling stress resulting in a high mortality during capture and quarantine stage (45.8%). Once they moved to long-term facilities, they showed good food acceptance and gregarious behaviour, but mortality never disappear. Total survival was 15.86%. Some fish were asymptomatic, but most of them had an extreme weight loss with severe emaciation and cachexia. The histopathological study showed presence of Myxozoa Ceratomyxa sp. parasite in most of the dead fish (>70%). Ceratomyxa sp. was detected in gallbladder, intestine and kidney. The presence of trematodes, nematodes and annelids was occasional, showing lower parasite diversity and prevalence than in natural conditions. This might be due to the pathogen-free diet that can cause a host-parasite imbalance by inducing other parasitic infections. In addition, culture conditions might reduce the immune response and favour ceratomyxosis due to the easily stressed nature of striped red mullet.
      PubDate: 2017-12-01
      DOI: 10.1007/s10499-017-0166-6
      Issue No: Vol. 25, No. 6 (2017)
       
  • Effect of commercial probiotics ( Bacillus subtilis and Saccharomyces
           cerevisiae ) on growth performance, body composition, hematology
           parameters, and disease resistance against Streptococcus agalactiae in
           tambaqui ( Colossoma macropomum )
    • Authors: Alison Eduardo Melo da Paixão; Jéssica Cerqueira dos Santos; Mariana Sampaio Pinto; Denise Soledade Peixoto Pereira; Carlos Eduardo Crispim de Oliveira Ramos; Robson Bahia Cerqueira; Rodrigo Diana Navarro; Rodrigo Fortes da Silva
      Pages: 2035 - 2045
      Abstract: Abstract The use of feed additives as probiotics in aquaculture is increasing, but it is still poorly understood. Our aim was to evaluate the effect of two probiotics (Bacillus subtilis 10 9 UFC/g and Saccharomyces cerevisiae 10 9 UFC/g) on growth parameters, body composition, and hematological responses of tambaqui juveniles (Colossoma macropomum) by considering time a key factor for the probiotics-pathogens interaction. The first phase studied 108 animals (2.13 ± 0.75 g) randomly distributed into 12 tanks. Weight, consumption, feed conversion, weight gain, survival, and body composition were evaluated after 90 days. The second phase studied 60 animals (175.01 ± 36.73 g) fed with the same experimental diets. After 60 days, fish were induced with bacteria Streptococcus agalactiae strains (1.0 × 10−5 UFC) and subjected to blood collection (0, 12, 24, 48, and 72 h). In short, no differences were observed for performance and body composition. Mortality was not observed for phase 1 and 2, and it is expected due to purposeful protocol of moderate infection. However, improvements of hematological parameters (red and white series) were noted in the tambaqui supplemented with commercial S. cerevisiae when considering exposure time.
      PubDate: 2017-12-01
      DOI: 10.1007/s10499-017-0173-7
      Issue No: Vol. 25, No. 6 (2017)
       
  • Estimates of genetic parameters and genotype by environment interactions
           for shell nacre color and growth traits in the purple freshwater pearl
           mussel Hyriopsis cumingii
    • Authors: Zhiyi Bai; Qingqing Li; Xuekai Han; Jiale Li
      Pages: 2079 - 2090
      Abstract: Abstract Hyriopsis cumingii, one of the most commercially important freshwater pearl mussel in China, produced most of white and orange cultured pearls. However, purple freshwater cultured pearls, with higher commercial value, are the most popular due to its rarity. For increasing the yields of purple pearl, one selection breeding program for improving shell nacre color were developed in H. cumingii. Genetic parameters and genotype by environment interactions for shell nacre color and growth traits were estimated from the fifth-generation purple selective strain of H. cumingii reared at two sites (Chongming and Jinhua). Four shell nacre color parameters and six shell growth traits were recorded by 1142 individuals at 12-month-old. Microsatellite-based DNA parentage analysis was used to assign the mussels to 13 paternal half-sib families, including 37 full-sib families. Genetic diversity was found to be high in the selected strain, with a mean expected heterozygosity at 6 microsatellite loci equal to 0.791. Heritability estimates of four shell nacre color parameters, lightness (L*), redness (a*), yellowness (b*), and total color change (dE) were 0.33 ± 0.19, 0.17 ± 0.10, 0.69 ± 0.10, and 0.33 ± 0.19, respectively. Heritability estimates were 0.20 ± 0.03 for shell length, 0.16 ± 0.06 for shell height, 0.17 ± 0.02 for shell width, 0.23 ± 0.01 for body weight, 0.15 ± 0.06 for mantle weight, and 0.31 ± 0.03 for shell weight. No significant phenotypic or genetic correlation was found between shell nacre color parameters and growth traits. All shell nacre color parameters and growth traits, except for shell nacre color parameter b*, exhibited may be significant genotype by environment interactions at the two sites. The results suggest that shell nacre color parameters may be treated as selective traits for further improving shell nacre color. And shell nacre color may be selected for independently of selection on growth performance. Some considering to the likely genotype by environment interactions for shell nacre color and growth traits should be taken in future selective breeding programs for large-scale culture practices.
      PubDate: 2017-12-01
      DOI: 10.1007/s10499-017-0170-x
      Issue No: Vol. 25, No. 6 (2017)
       
  • Study on the genetic variability of the hatchery-released and wild
           populations of Chinese white shrimp Fenneropenaeus chinensis in the Yellow
           Sea and Bohai Sea
    • Authors: Pengfei Li; Hui Zhang; Xiumei Zhang; Tianxiang Gao; Zhiqiang Han
      Pages: 2117 - 2126
      Abstract: Abstract In relation to the stock enhancement program for Chinese white shrimp Fenneropenaeus chinensis, hatchery-released juveniles and wild samples in the Yellow Sea and Bohai Sea were genotyped using amplified fragment length polymorphism (AFLP) markers to investigate the levels of genetic variation among these populations. Five AFLP primer combinations generated a total of 757 bands across the 268 individuals in nine hatchery-released populations and three wild populations. All 757 bands were polymorphic. High polymorphism at AFLP markers was found within both hatchery-released and wild populations. The percentage of polymorphic loci for populations ranged from 87.22 to 98.60%, while the Nei’s genetic diversity ranged from 0.1822 to 0.2728. Compared with wild populations, the nine hatchery-released populations showed significant genetic changes based on F ST values. All populations were divided into two distinct groups by principal coordinate analysis (PcoA) analysis. Three wild populations (Dalian, Kengli, Middle Yellow Sea) with hatchery-released populations from Rongcheng, Panjin, and Dandong clustered as one group; the rest of hatchery populations formed another group. Interestingly, no obvious geographic cluster was found in the unweighted pair group method with arithmetic mean tree and PcoA. We recommend monitoring the genetic variability of selected hatchery populations to enhance the conservation of natural Chinese white shrimp F. chinensis resources.
      PubDate: 2017-12-01
      DOI: 10.1007/s10499-017-0174-6
      Issue No: Vol. 25, No. 6 (2017)
       
  • Physical eradication of small planktonic crustaceans from aquaculture
           tanks with cavitation treatment
    • Authors: Yoshihisa Kurita; Ikuo Chiba; Akihiro Kijima
      Pages: 2127 - 2133
      Abstract: Abstract Small planktonic crustaceans cause serious problems in invertebrate aquaculture tanks through predatory damage or competition for food resources with the aquaculture species. In sea cucumber aquaculture, they can cause the mass loss of culturing jeveniles for releasing, which is a major obstacle to stable seedling production. In this study, we developed a novel method for eradicating small planktonic crustaceans using a ‘cavitation’ shock wave. Cavitation can cause significant damage to the surfaces of metallic devices, such as propellers and pumps, via the shock waves that occur with the disruption of micro/nano-bubbles. Therefore, we subjected planktonic crustaceans, mainly copepods, to cavitation using a micro/nano-bubble generator. The cavitation treatment reduced the planktonic crustaceans in the aquaculture tanks by 63.3% compared with the control. Comparison of the body size distribution of crustaceans indicated that cavitation treatment kills crustaceans of all sizes equally. We also assessed the negative effects of the micro/nano-bubbles, which are a byproduct of cavitation treatment, on the aquaculture species. We exposed juvenile sea cucumbers (Apostichopus japonicus) and sea urchins (Strongylocentrotus intermedius) to micro/nano-bubbles, and then examined their survival rate four days later; all individuals were intact and uninjured. These results suggest that cavitation treatment is an effective method for controlling planktonic crustaceans without using chemicals.
      PubDate: 2017-12-01
      DOI: 10.1007/s10499-017-0179-1
      Issue No: Vol. 25, No. 6 (2017)
       
  • Experimental study to evaluate the efficacy of locally available waste
           carbon sources on aquaculture water quality management using biofloc
           technology
    • Authors: Saptashish Deb; Md. T. Noori; P. Srinivasa Rao
      Pages: 2149 - 2159
      Abstract: Abstract Locally available carbonaceous waste products viz. wheat flour, rice flour and tapioca flour recovered from flour industries were explored as carbon source for biofloc production and water quality management in light limited indoor aquariums without any culture species. The main objective of the study was to find out the efficacy of locally available waste carbon sources on biofloc production. Tapioca flour was found to be encompassed with more than 90% carbohydrate and was observed more suitable for microbial growth, resulting in 41.4 and 33.7% higher floc formation as compared to rice flour and wheat flour, respectively. In addition, enhanced microbial protein assimilation of 33.5% was noted in tapioca flour biofloc system with respect to wheat flour (27%) and rice flour (23.75%). All biofloc systems showed adequate water quality management in terms of nitrite and total ammonium nitrogen removal from the culture tank. The study demonstrates the effective use of waste products from flour industries in biofloc technology to obtain multi-layer benefit as waste minimization and water treatment.
      PubDate: 2017-12-01
      DOI: 10.1007/s10499-017-0180-8
      Issue No: Vol. 25, No. 6 (2017)
       
  • Environmental factors on virulence of Aeromonas hydrophila
    • Authors: Ruan E. F. Abreu; Thaís C Magalhães; Renilde C Souza; Samira TL Oliveira; Adriana MG Ibelli; Fábio N Demarqui; João JS Gouveia; Mateus M Costa; Gisele V Gouveia
      Abstract: Abstract Aeromonas hydrophila are known for being opportunistic pathogens, harboring various virulence factors and triggering lesions and death in fish. The disease caused by bacteria can make fish inappropriate for human consumption, besides representing a risk to public health. The pathogenesis can be influenced by environmental variables, affecting fish productivity and mortality. The present study aimed to determine whether A. hydrophila harbor the virulence genes aerolysin, hydrolipase, elastase, lipase, cytotonic enterotoxin (ast), lateral flagellum (laf), and polar flagellum (fla) and to evaluate the influence of environmental variables on in vitro growth, in vivo virulence and expression of some of these genes. Polymerase chain reaction (PCR)-based screening for the presence of these virulence genes was performed on 35 isolates. Six isolates containing different profiles of virulence genes were tested for in vitro growth under different conditions of pH, temperature, and ammonia and for in vivo virulence under these same environmental conditions. RT-qPCR was used to quantify the expression of aerolysin, lipase, and fla genes. All the tested environmental factors influenced the growth of A. hydrophila, while pH and ammonia concentrations influenced the bacterial virulence. The expression of the fla gene increased when bacteria were grown in higher ammonia concentration. The mortality established by Aeromonas is influenced by several environmental factors pinpointing the importance of its control in fish farming to avoid higher economic loses associated to bacterial disease outbreaks.
      PubDate: 2017-12-30
      DOI: 10.1007/s10499-017-0230-2
       
  • Can the polyculture with South American catfish improve the feeding
           efficiency of rainbow trout culture'
    • Authors: Felipe Anderson Pereira; Natalia Ha; André Fernando Nascimento Gonçalves; Hélio Antunes; Wagner C. Valenti; Thiago El Hadi Perez Fabregat
      Abstract: Abstract The objective of this study was to determine if the South American catfish (Rhamdia quelen) is suitable to be farmed in polyculture with rainbow trout (Oncorhynchus mykiss) in intensive systems during the juvenile phase to maximize feed efficiency. Juveniles of rainbow trout (3.94 ± 0.11 g) and South American catfish (2.07 ± 0.04 g) were distributed in 16 tanks (100 L) with continuous water renewal at the density of 50 fish/tank. The experimental design was completely randomized with four treatments (proportions between species) and four replicates. The treatments were 100% trout (100T), 70% trout and 30% catfish (70T30C), 50% trout and 50% catfish (50T50C), and 100% catfish (100C). Fish were fed twice daily with pelleted commercial feed (45% crude protein) during an experimental period of 56 days. No feed was provided for the catfish in polyculture. The weight gained by the trout was higher in polyculture. Fish survival did not differ among the treatments. The average survival of the trout in all tanks was 99.6 ± 1.0%, while the survival of the South American catfish was 97.9 ± 2.7%. The total feed conversion ratio was lower in the 70T30J treatment, followed by the 100T treatment. Rainbow trout and South American catfish are compatible species for farming together in the first phase of their juvenile development. The different spaces occupied by these species inside tanks probably prevent competition or agonistic behavior. Catfish eat the non-ingested leftover diet from the trout, which improves feed conversion and increases sustainability.
      PubDate: 2017-12-29
      DOI: 10.1007/s10499-017-0234-y
       
  • Better management practices and their outcomes in shrimp farming: evidence
           from small-scale shrimp farmers in Southern Vietnam
    • Authors: Aya Suzuki; Vu Hoang Nam
      Abstract: Abstract Despite the growth of aquaculture exports from developing countries to developed countries in recent years, a high percentage of these products are rejected at developed countries’ ports because of non-compliance with international standards. This paper presents a case study of the shrimp aquaculture sector in Vietnam to examine the factors behind the persistence of such port rejections. In particular, we focus on why the so-called better management practices (BMPs) are not appropriately adopted by many farmers and examine whether the number and types of information sources matter in farmers’ decisions on BMP adoption and whether BMP adoption actually leads to better performances. On the basis of our estimation using primary data collected in Southern Vietnam, we find that information sources and training experiences indeed matter in the adoption of a higher number of BMPs and that BMP adoption indeed reduces the possibility of disease outbreaks. These results prove the effectiveness of BMPs and suggest the importance of disseminating knowledge regarding them to farmers through experts.
      PubDate: 2017-12-28
      DOI: 10.1007/s10499-017-0228-9
       
  • Correction to: Effects of dietary Biogen and sodium butyrate on
           hematological parameters, immune response, and histological
           characteristics of Nile tilapia ( Oreochromis niloticus ) fingerlings
    • Authors: Abdel-Fattah Mohamed El-Sayed; Tamer El-Sayed Ali; Mohamed Abdel-Razek Eissa; Hebatollah Moustafa Almisherfi
      Abstract: Abstract The original version of this article unfortunately contained an error in the order of author names and affiliations.
      PubDate: 2017-12-27
      DOI: 10.1007/s10499-017-0221-3
       
  • Assessment of household risk management strategies for coastal
           aquaculture: the case of clam farming in Thaibinh Province, Vietnam
    • Authors: Thi Thu Hang Ngo; Hossein Azadi; Huu Cuong Tran; Philippe Lebailly
      Abstract: Abstract Clam farmers have experienced different types of risks that have been further exacerbated by the rapid expansion of clam farming areas, increased growing densities, and increased market difficulties in recent years in the Thaibinh Province of Vietnam. Most farmers have been seriously affected by production risk, market risk, and financial risk, while a number of others have met with success in almost all of their clam-raising cycles. This study applied a differentiating comparative analysis method and multiple discriminant analysis method to discuss the differences in risk management strategies between and among clam farming households and the impacts of those differences on their success/failure rates. In general, the tactics are related to increase in farm size, the application of technical innovations, diversifying livelihood activities, and accessing secure financial sources all provided better conditions for clam growth, diminished losses, and led to speedier recovery from shocks. To support farmers in managing risks, several government interventions are needed: (1) better re-zoning of clam farming areas in parallel with an increase in the farm size of each household, (2) promoting sustainable linkages between the farmers and the formal financial market and output market, and (3) investing more funding into research and extension related to sustainable clam farming practices and to the improvement of farmers’ skills in cooperative works and management.
      PubDate: 2017-12-23
      DOI: 10.1007/s10499-017-0226-y
       
  • Effects of extensive bottom cultivation of tropical oyster Crassostrea
           belcheri on benthic invertebrate community structure in Ban Don Bay,
           Suratthani Province, Southern Thailand
    • Authors: Sirusa Kritsanapuntu; Nilnaj Chaitanawisuti
      Abstract: Abstract The diversity, distribution, and species richness of benthic invertebrates were examined under extensive bottom cultivation of the tropical oyster Crassostrea belcheri during the summer of 2015 at Ban Don Bay, Suratthani Province, Southern Thailand. Oyster farms that had been operating for 25 years were selected for the study, and four sampling sites were allocated along each transect as (i) at the center of the farm, (ii) inside the farm, (iii) at the farm boundary, and (iv) a reference site. Results indicated that a total of 23 families and 28 species of benthic invertebrate taxa were recorded from the four sampling sites, and the macrobenthic invertebrates inhabiting all study sites consisted mainly of gastropods (11 species), polychaetes (11 species), and bivalves (8 species). No significant differences in total density, diversity index, evenness index, and species richness index of benthic invertebrates were found among each sampling site (P > 0.05). Significant differences in total nitrogen, nitrate, nitrite, total ammonia, sulfide, total phosphorus, organic matter, and grain sizes of sediment were found among each sampling site, but no significant differences in pH and total nitrogen were found. Among the independent variables analyzed, correlation analysis showed relationships between benthic diversity indices and abiotic variables. There were no clear patterns of differences in the detrimental environmental effects between sampling site locations, which indicated a minimal ecological impact of oyster cultivation.
      PubDate: 2017-12-22
      DOI: 10.1007/s10499-017-0227-x
       
  • Effects of electrolyte enhanced water on culturing giant freshwater prawn
           Macrobrachium rosenbergii
    • Authors: Muhamad Syahmin Aiman Sahrir; Mushrifah Idris; Abdullah Samat; Suhairi Alimon
      Abstract: Abstract In this work, electrolyte enhanced water (EW) was used to determine the effect of EW in culturing freshwater prawns. The giant freshwater prawn juvenile, Macrobrachium rosenbergii, was exposed to different concentrations of EW in experiment 1. The EW was added into the water and labeled as treatment A1 which consists of 1% anolyte and 0.5% catholyte. In the respective treatments, the proportion of anolytes and catolytes are as follows: treatment B1 (1% anolyte and 1% catholyte), treatment C1 (2% anolyte and 0.5% catholyte), treatment D1 (2% anolyte and 1% catholyte), and control (without EW). All these treatments were run in three replicates for each treatment including the control. In the first experiment, the growth of the M. rosenbergii under treatment A1 showed an increased in growth as compared to the control after 56 days of exposure with a significant difference of p < 0.05. The survival rate of prawns is higher in treatments A1 (73%), B1 (70%), and control (63%) as compared to treatments C1 (53%) and D1 (50%). In the second experiment, the treatment using EW concentration of 1% anolyte and 0.5% catholyte was used as the most suitable concentration for the prawn culturing tested with recirculating aquaculture system (RAS). The treatments used in the second experiment was labeled as A2 (EW), B2 (EW and RAS), C2 (RAS), and control. Treatment B2 showed a higher growth and survival rate and was significantly different to the other treatments. The colony-forming unit (CFU) showed a lower count of bacteria in all experiments that used EW as compared to the control. The concentration of 1% of anolyte and 0.5% of catholyte has shown to improve the growth and survival rate of the M. rosenbergii culture when combined with the RAS. This study showed a potential use of electrolyte enhanced water in culturing giant freshwater prawn.
      PubDate: 2017-12-04
      DOI: 10.1007/s10499-017-0223-1
       
  • Effect of feeding level on growth, body composition, fatty acid profile,
           and nutrient accumulation in shrimp ( Litopenaeus vannamei )
    • Authors: Alokesh Kumar Ghosh
      Abstract: Abstract A study was conducted in a recirculating aquaculture system (RAS) to assess the growth performance, body composition, fatty acid profile, and nutrient accumulation in different tissues of shrimp using two feeding levels (10 and 16 g/kg0.8/day). The shrimp PL25 was nursed in the nursing tank for 2 months and stocked in six grow out tanks (ten individuals in each 30 L tank). A commercial feed with 42.7% protein was used over a 16-h period per day. After 4 weeks, the final average weight when fed 16 g/kg0.8/day was 9.7 g which was not significantly different from a final weight of 8.6 g achieved when feeding 10 g/kg0.8/day. The protein and energy content increased in high feeding level whereas moisture, crude fat, and ash content decreased with feeding level (P > 0.05). With the high feeding level, the fatty acid content increased in the eye, muscle, and whole body, with eye containing the highest concentration. The isotopic ratio of δ13C was enriched with feeding level in the muscle and whole shrimp whereas the ratio of δ13C was depleted in the viscera with feeding level. The fraction of δ15N was enriched with decreasing feeding level and highest value was found in the muscle than in the whole shrimp and viscera.
      PubDate: 2017-12-04
      DOI: 10.1007/s10499-017-0225-z
       
  • Pikeperch Sander lucioperca production in the south part of the Caspian
           Sea: technical notes
    • Authors: Bahram Falahatkar; Iraj Efatpanah; Patrick Kestemont
      Abstract: Abstract Pikeperch Sander lucioperca is an endemic species present in many rivers and lakes of Eurasian regions and also distributed in the Caspian Sea basin. This species was caught by commercial fishermen in the south part of the Caspian Sea, with the highest annual record of 4167 tons in 1931, but due to over-fishing and destruction of natural spawning areas, wild populations have completely collapsed. In order to cope with this marked decline of pikeperch stocks, the Iranian Fisheries Organization developed the artificial propagation and rearing activities for stock rehabilitation. Currently, breeders are caught from natural environments for artificial propagation with or without hormonal induction in order to produce annually millions of fingerlings for releasing into the rivers of the Caspian Sea. Although aquaculture of pikeperch is still in the phase of research and development, some carp farmers are now interested to use it for biological control of undesirable species in earthen ponds. In recent years, total annual fish landings of pikeperch in the southern part of the Caspian Sea increased to 100–300 tons, because of Iranian restocking program. However, more studies are still necessary to successfully achieve pikeperch domestication and to produce a specific formulated feed for this species, with the ultimate goal that pikeperch be adopted by Iranian commercial fish farmers.
      PubDate: 2017-12-01
      DOI: 10.1007/s10499-017-0222-2
       
  • Correction to: Effects of clam dredging on benthic ecology of two
           cultivated northern quahog beds with different harvest histories and
           sediment grain sizes
    • Authors: Renee Mercaldo-Allen; Shannon Meseck; Ronald Goldberg; Paul Clark; Catherine Kuropat; Julie M. Rose
      Abstract: Abstract The original version of this article unfortunately contained an error where the symbol for phi size was inadvertently omitted from the text.
      PubDate: 2017-10-18
      DOI: 10.1007/s10499-017-0208-0
       
 
 
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