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Publisher: Springer-Verlag (Total: 2351 journals)

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Showing 1 - 200 of 2351 Journals sorted alphabetically
3D Printing in Medicine     Open Access   (Followers: 2)
3D Research     Hybrid Journal   (Followers: 21, SJR: 0.222, CiteScore: 1)
4OR: A Quarterly J. of Operations Research     Hybrid Journal   (Followers: 10, SJR: 0.825, CiteScore: 1)
AAPS J.     Hybrid Journal   (Followers: 25, SJR: 1.118, CiteScore: 4)
AAPS PharmSciTech     Hybrid Journal   (Followers: 7, SJR: 0.752, CiteScore: 3)
Abdominal Radiology     Hybrid Journal   (Followers: 17, SJR: 0.866, CiteScore: 2)
Abhandlungen aus dem Mathematischen Seminar der Universitat Hamburg     Hybrid Journal   (Followers: 4, SJR: 0.439, CiteScore: 0)
Academic Psychiatry     Full-text available via subscription   (Followers: 29, SJR: 0.53, CiteScore: 1)
Academic Questions     Hybrid Journal   (Followers: 8, SJR: 0.106, CiteScore: 0)
Accreditation and Quality Assurance: J. for Quality, Comparability and Reliability in Chemical Measurement     Hybrid Journal   (Followers: 31, SJR: 0.316, CiteScore: 1)
Acoustical Physics     Hybrid Journal   (Followers: 11, SJR: 0.359, CiteScore: 1)
Acoustics Australia     Hybrid Journal   (SJR: 0.232, CiteScore: 1)
Acta Analytica     Hybrid Journal   (Followers: 7, SJR: 0.367, CiteScore: 0)
Acta Applicandae Mathematicae     Hybrid Journal   (Followers: 1, SJR: 0.675, CiteScore: 1)
Acta Biotheoretica     Hybrid Journal   (Followers: 4, SJR: 0.284, CiteScore: 1)
Acta Diabetologica     Hybrid Journal   (Followers: 19, SJR: 1.587, CiteScore: 3)
Acta Endoscopica     Hybrid Journal   (Followers: 1)
acta ethologica     Hybrid Journal   (Followers: 4, SJR: 0.769, CiteScore: 1)
Acta Geochimica     Hybrid Journal   (Followers: 7, SJR: 0.24, CiteScore: 1)
Acta Geodaetica et Geophysica     Hybrid Journal   (Followers: 3, SJR: 0.305, CiteScore: 1)
Acta Geophysica     Hybrid Journal   (Followers: 11, SJR: 0.312, CiteScore: 1)
Acta Geotechnica     Hybrid Journal   (Followers: 7, SJR: 1.588, CiteScore: 3)
Acta Informatica     Hybrid Journal   (Followers: 5, SJR: 0.517, CiteScore: 1)
Acta Mathematica     Hybrid Journal   (Followers: 13, SJR: 7.066, CiteScore: 3)
Acta Mathematica Hungarica     Hybrid Journal   (Followers: 2, SJR: 0.452, CiteScore: 1)
Acta Mathematica Sinica, English Series     Hybrid Journal   (Followers: 6, SJR: 0.379, CiteScore: 1)
Acta Mathematica Vietnamica     Hybrid Journal   (SJR: 0.27, CiteScore: 0)
Acta Mathematicae Applicatae Sinica, English Series     Hybrid Journal   (SJR: 0.208, CiteScore: 0)
Acta Mechanica     Hybrid Journal   (Followers: 21, SJR: 1.04, CiteScore: 2)
Acta Mechanica Sinica     Hybrid Journal   (Followers: 5, SJR: 0.607, CiteScore: 2)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 7, SJR: 0.576, CiteScore: 2)
Acta Meteorologica Sinica     Hybrid Journal   (Followers: 3, SJR: 0.638, CiteScore: 1)
Acta Neurochirurgica     Hybrid Journal   (Followers: 7, SJR: 0.822, CiteScore: 2)
Acta Neurologica Belgica     Hybrid Journal   (Followers: 2, SJR: 0.376, CiteScore: 1)
Acta Neuropathologica     Hybrid Journal   (Followers: 4, SJR: 7.589, CiteScore: 12)
Acta Oceanologica Sinica     Hybrid Journal   (Followers: 3, SJR: 0.334, CiteScore: 1)
Acta Physiologiae Plantarum     Hybrid Journal   (Followers: 3, SJR: 0.574, CiteScore: 2)
Acta Politica     Hybrid Journal   (Followers: 19, SJR: 0.605, CiteScore: 1)
Activitas Nervosa Superior     Hybrid Journal   (SJR: 0.147, CiteScore: 0)
adhäsion KLEBEN & DICHTEN     Hybrid Journal   (Followers: 8, SJR: 0.103, CiteScore: 0)
ADHD Attention Deficit and Hyperactivity Disorders     Hybrid Journal   (Followers: 26, SJR: 0.72, CiteScore: 2)
Adhesion Adhesives & Sealants     Hybrid Journal   (Followers: 9)
Administration and Policy in Mental Health and Mental Health Services Research     Partially Free   (Followers: 18, SJR: 1.005, CiteScore: 2)
Adsorption     Hybrid Journal   (Followers: 5, SJR: 0.703, CiteScore: 2)
Advances in Applied Clifford Algebras     Hybrid Journal   (Followers: 4, SJR: 0.698, CiteScore: 1)
Advances in Atmospheric Sciences     Hybrid Journal   (Followers: 37, SJR: 0.956, CiteScore: 2)
Advances in Computational Mathematics     Hybrid Journal   (Followers: 20, SJR: 0.812, CiteScore: 1)
Advances in Contraception     Hybrid Journal   (Followers: 3)
Advances in Data Analysis and Classification     Hybrid Journal   (Followers: 58, SJR: 1.09, CiteScore: 1)
Advances in Gerontology     Partially Free   (Followers: 8, SJR: 0.144, CiteScore: 0)
Advances in Health Sciences Education     Hybrid Journal   (Followers: 32, SJR: 1.64, CiteScore: 2)
Advances in Manufacturing     Hybrid Journal   (Followers: 3, SJR: 0.475, CiteScore: 2)
Advances in Polymer Science     Hybrid Journal   (Followers: 46, SJR: 1.04, CiteScore: 3)
Advances in Therapy     Hybrid Journal   (Followers: 5, SJR: 1.075, CiteScore: 3)
Aegean Review of the Law of the Sea and Maritime Law     Hybrid Journal   (Followers: 7)
Aequationes Mathematicae     Hybrid Journal   (Followers: 2, SJR: 0.517, CiteScore: 1)
Aerobiologia     Hybrid Journal   (Followers: 3, SJR: 0.673, CiteScore: 2)
Aesthetic Plastic Surgery     Hybrid Journal   (Followers: 11, SJR: 0.825, CiteScore: 1)
African Archaeological Review     Hybrid Journal   (Followers: 21, SJR: 0.862, CiteScore: 1)
Afrika Matematika     Hybrid Journal   (Followers: 1, SJR: 0.235, CiteScore: 0)
AGE     Hybrid Journal   (Followers: 7)
Ageing Intl.     Hybrid Journal   (Followers: 7, SJR: 0.39, CiteScore: 1)
Aggiornamenti CIO     Hybrid Journal   (Followers: 1)
Aging Clinical and Experimental Research     Hybrid Journal   (Followers: 3, SJR: 0.67, CiteScore: 2)
Agricultural Research     Hybrid Journal   (Followers: 6, SJR: 0.276, CiteScore: 1)
Agriculture and Human Values     Open Access   (Followers: 14, SJR: 1.173, CiteScore: 3)
Agroforestry Systems     Open Access   (Followers: 20, SJR: 0.663, CiteScore: 1)
Agronomy for Sustainable Development     Open Access   (Followers: 15, SJR: 1.864, CiteScore: 6)
AI & Society     Hybrid Journal   (Followers: 9, SJR: 0.227, CiteScore: 1)
AIDS and Behavior     Hybrid Journal   (Followers: 14, SJR: 1.792, CiteScore: 3)
Air Quality, Atmosphere & Health     Hybrid Journal   (Followers: 4, SJR: 0.862, CiteScore: 3)
Akupunktur & Aurikulomedizin     Full-text available via subscription   (Followers: 1)
Algebra and Logic     Hybrid Journal   (Followers: 6, SJR: 0.531, CiteScore: 0)
Algebra Universalis     Hybrid Journal   (Followers: 2, SJR: 0.583, CiteScore: 1)
Algebras and Representation Theory     Hybrid Journal   (Followers: 1, SJR: 1.095, CiteScore: 1)
Algorithmica     Hybrid Journal   (Followers: 9, SJR: 0.56, CiteScore: 1)
Allergo J.     Full-text available via subscription   (Followers: 1, SJR: 0.234, CiteScore: 0)
Allergo J. Intl.     Hybrid Journal   (Followers: 2)
Alpine Botany     Hybrid Journal   (Followers: 5, SJR: 1.11, CiteScore: 3)
ALTEX : Alternatives to Animal Experimentation     Open Access   (Followers: 3)
AMBIO     Hybrid Journal   (Followers: 10, SJR: 1.569, CiteScore: 4)
American J. of Cardiovascular Drugs     Hybrid Journal   (Followers: 16, SJR: 0.951, CiteScore: 3)
American J. of Community Psychology     Hybrid Journal   (Followers: 29, SJR: 1.329, CiteScore: 2)
American J. of Criminal Justice     Hybrid Journal   (Followers: 9, SJR: 0.772, CiteScore: 1)
American J. of Cultural Sociology     Hybrid Journal   (Followers: 18, SJR: 0.46, CiteScore: 1)
American J. of Dance Therapy     Hybrid Journal   (Followers: 5, SJR: 0.181, CiteScore: 0)
American J. of Potato Research     Hybrid Journal   (Followers: 2, SJR: 0.611, CiteScore: 1)
American J. of Psychoanalysis     Hybrid Journal   (Followers: 22, SJR: 0.314, CiteScore: 0)
American Sociologist     Hybrid Journal   (Followers: 16, SJR: 0.35, CiteScore: 0)
Amino Acids     Hybrid Journal   (Followers: 7, SJR: 1.135, CiteScore: 3)
AMS Review     Partially Free   (Followers: 4)
Analog Integrated Circuits and Signal Processing     Hybrid Journal   (Followers: 7, SJR: 0.211, CiteScore: 1)
Analysis and Mathematical Physics     Hybrid Journal   (Followers: 6, SJR: 0.536, CiteScore: 1)
Analysis in Theory and Applications     Hybrid Journal   (Followers: 1)
Analysis of Verbal Behavior     Hybrid Journal   (Followers: 6)
Analytical and Bioanalytical Chemistry     Hybrid Journal   (Followers: 32, SJR: 0.978, CiteScore: 3)
Anatomical Science Intl.     Hybrid Journal   (Followers: 3, SJR: 0.367, CiteScore: 1)
Angewandte Schmerztherapie und Palliativmedizin     Hybrid Journal  
Angiogenesis     Hybrid Journal   (Followers: 3, SJR: 2.177, CiteScore: 5)
Animal Cognition     Hybrid Journal   (Followers: 20, SJR: 1.389, CiteScore: 3)
Annales françaises de médecine d'urgence     Hybrid Journal   (Followers: 1, SJR: 0.192, CiteScore: 0)
Annales Henri Poincaré     Hybrid Journal   (Followers: 3, SJR: 1.097, CiteScore: 2)
Annales mathématiques du Québec     Hybrid Journal   (Followers: 4, SJR: 0.438, CiteScore: 0)
Annali dell'Universita di Ferrara     Hybrid Journal   (SJR: 0.429, CiteScore: 0)
Annali di Matematica Pura ed Applicata     Hybrid Journal   (Followers: 1, SJR: 1.197, CiteScore: 1)
Annals of Biomedical Engineering     Hybrid Journal   (Followers: 17, SJR: 1.042, CiteScore: 3)
Annals of Combinatorics     Hybrid Journal   (Followers: 4, SJR: 0.932, CiteScore: 1)
Annals of Data Science     Hybrid Journal   (Followers: 12)
Annals of Dyslexia     Hybrid Journal   (Followers: 10, SJR: 0.85, CiteScore: 2)
Annals of Finance     Hybrid Journal   (Followers: 34, SJR: 0.579, CiteScore: 1)
Annals of Forest Science     Hybrid Journal   (Followers: 7, SJR: 0.986, CiteScore: 2)
Annals of Global Analysis and Geometry     Hybrid Journal   (Followers: 1, SJR: 1.228, CiteScore: 1)
Annals of Hematology     Hybrid Journal   (Followers: 16, SJR: 1.043, CiteScore: 2)
Annals of Mathematics and Artificial Intelligence     Hybrid Journal   (Followers: 12, SJR: 0.413, CiteScore: 1)
Annals of Microbiology     Hybrid Journal   (Followers: 11, SJR: 0.479, CiteScore: 2)
Annals of Nuclear Medicine     Hybrid Journal   (Followers: 5, SJR: 0.687, CiteScore: 2)
Annals of Operations Research     Hybrid Journal   (Followers: 10, SJR: 0.943, CiteScore: 2)
Annals of Ophthalmology     Hybrid Journal   (Followers: 13)
Annals of Regional Science     Hybrid Journal   (Followers: 8, SJR: 0.614, CiteScore: 1)
Annals of Software Engineering     Hybrid Journal   (Followers: 13)
Annals of Solid and Structural Mechanics     Hybrid Journal   (Followers: 9, SJR: 0.239, CiteScore: 1)
Annals of Surgical Oncology     Hybrid Journal   (Followers: 15, SJR: 1.986, CiteScore: 4)
Annals of Telecommunications     Hybrid Journal   (Followers: 9, SJR: 0.223, CiteScore: 1)
Annals of the Institute of Statistical Mathematics     Hybrid Journal   (Followers: 1, SJR: 1.495, CiteScore: 1)
Antonie van Leeuwenhoek     Hybrid Journal   (Followers: 5, SJR: 0.834, CiteScore: 2)
Apidologie     Hybrid Journal   (Followers: 4, SJR: 1.22, CiteScore: 3)
APOPTOSIS     Hybrid Journal   (Followers: 9, SJR: 1.424, CiteScore: 4)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 2, SJR: 0.294, CiteScore: 1)
Applications of Mathematics     Hybrid Journal   (Followers: 3, SJR: 0.602, CiteScore: 1)
Applied Biochemistry and Biotechnology     Hybrid Journal   (Followers: 44, SJR: 0.571, CiteScore: 2)
Applied Biochemistry and Microbiology     Hybrid Journal   (Followers: 18, SJR: 0.21, CiteScore: 1)
Applied Categorical Structures     Hybrid Journal   (Followers: 4, SJR: 0.49, CiteScore: 0)
Applied Composite Materials     Hybrid Journal   (Followers: 51, SJR: 0.58, CiteScore: 2)
Applied Entomology and Zoology     Partially Free   (Followers: 6, SJR: 0.422, CiteScore: 1)
Applied Geomatics     Hybrid Journal   (Followers: 3, SJR: 0.733, CiteScore: 3)
Applied Geophysics     Hybrid Journal   (Followers: 9, SJR: 0.488, CiteScore: 1)
Applied Intelligence     Hybrid Journal   (Followers: 15, SJR: 0.6, CiteScore: 2)
Applied Magnetic Resonance     Hybrid Journal   (Followers: 4, SJR: 0.319, CiteScore: 1)
Applied Mathematics & Optimization     Hybrid Journal   (Followers: 9, SJR: 0.886, CiteScore: 1)
Applied Mathematics - A J. of Chinese Universities     Hybrid Journal   (Followers: 1, SJR: 0.17, CiteScore: 0)
Applied Mathematics and Mechanics     Hybrid Journal   (Followers: 5, SJR: 0.461, CiteScore: 1)
Applied Microbiology and Biotechnology     Hybrid Journal   (Followers: 66, SJR: 1.182, CiteScore: 4)
Applied Physics A     Hybrid Journal   (Followers: 10, SJR: 0.481, CiteScore: 2)
Applied Physics B: Lasers and Optics     Hybrid Journal   (Followers: 26, SJR: 0.74, CiteScore: 2)
Applied Psychophysiology and Biofeedback     Hybrid Journal   (Followers: 8, SJR: 0.519, CiteScore: 2)
Applied Research in Quality of Life     Hybrid Journal   (Followers: 12, SJR: 0.316, CiteScore: 1)
Applied Solar Energy     Hybrid Journal   (Followers: 22, SJR: 0.225, CiteScore: 0)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 7, SJR: 0.542, CiteScore: 1)
Aquaculture Intl.     Hybrid Journal   (Followers: 26, SJR: 0.591, CiteScore: 2)
Aquarium Sciences and Conservation     Hybrid Journal   (Followers: 2)
Aquatic Ecology     Hybrid Journal   (Followers: 38, SJR: 0.656, CiteScore: 2)
Aquatic Geochemistry     Hybrid Journal   (Followers: 4, SJR: 0.591, CiteScore: 1)
Aquatic Sciences     Hybrid Journal   (Followers: 14, SJR: 1.109, CiteScore: 3)
Arabian J. for Science and Engineering     Hybrid Journal   (Followers: 5, SJR: 0.303, CiteScore: 1)
Arabian J. of Geosciences     Hybrid Journal   (Followers: 2, SJR: 0.319, CiteScore: 1)
Archaeological and Anthropological Sciences     Hybrid Journal   (Followers: 21, SJR: 1.052, CiteScore: 2)
Archaeologies     Hybrid Journal   (Followers: 12, SJR: 0.224, CiteScore: 0)
Archiv der Mathematik     Hybrid Journal   (Followers: 1, SJR: 0.725, CiteScore: 1)
Archival Science     Hybrid Journal   (Followers: 68, SJR: 0.745, CiteScore: 2)
Archive for History of Exact Sciences     Hybrid Journal   (Followers: 7, SJR: 0.186, CiteScore: 1)
Archive for Mathematical Logic     Hybrid Journal   (Followers: 3, SJR: 0.909, CiteScore: 1)
Archive for Rational Mechanics and Analysis     Hybrid Journal   (SJR: 3.93, CiteScore: 3)
Archive of Applied Mechanics     Hybrid Journal   (Followers: 6, SJR: 0.79, CiteScore: 2)
Archives and Museum Informatics     Hybrid Journal   (Followers: 160, SJR: 0.101, CiteScore: 0)
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 6, SJR: 1.41, CiteScore: 5)
Archives of Dermatological Research     Hybrid Journal   (Followers: 7, SJR: 1.006, CiteScore: 2)
Archives of Environmental Contamination and Toxicology     Hybrid Journal   (Followers: 14, SJR: 0.773, CiteScore: 2)
Archives of Gynecology and Obstetrics     Hybrid Journal   (Followers: 17, SJR: 0.956, CiteScore: 2)
Archives of Microbiology     Hybrid Journal   (Followers: 9, SJR: 0.644, CiteScore: 2)
Archives of Orthopaedic and Trauma Surgery     Hybrid Journal   (Followers: 9, SJR: 1.146, CiteScore: 2)
Archives of Osteoporosis     Hybrid Journal   (Followers: 2, SJR: 0.71, CiteScore: 2)
Archives of Sexual Behavior     Hybrid Journal   (Followers: 10, SJR: 1.493, CiteScore: 3)
Archives of Toxicology     Hybrid Journal   (Followers: 17, SJR: 1.541, CiteScore: 5)
Archives of Virology     Hybrid Journal   (Followers: 5, SJR: 0.973, CiteScore: 2)
Archives of Women's Mental Health     Hybrid Journal   (Followers: 17, SJR: 1.274, CiteScore: 3)
Archivio di Ortopedia e Reumatologia     Hybrid Journal  
Archivum Immunologiae et Therapiae Experimentalis     Hybrid Journal   (Followers: 2, SJR: 0.946, CiteScore: 3)
ArgoSpine News & J.     Hybrid Journal  
Argumentation     Hybrid Journal   (Followers: 6, SJR: 0.349, CiteScore: 1)
Arid Ecosystems     Hybrid Journal   (Followers: 2, SJR: 0.2, CiteScore: 0)
Arkiv för Matematik     Hybrid Journal   (Followers: 2, SJR: 0.766, CiteScore: 1)
Arnold Mathematical J.     Hybrid Journal   (Followers: 1, SJR: 0.355, CiteScore: 0)
Arthropod-Plant Interactions     Hybrid Journal   (Followers: 2, SJR: 0.839, CiteScore: 2)
Arthroskopie     Hybrid Journal   (Followers: 1, SJR: 0.131, CiteScore: 0)
Artificial Intelligence and Law     Hybrid Journal   (Followers: 11, SJR: 0.937, CiteScore: 2)
Artificial Intelligence Review     Hybrid Journal   (Followers: 18, SJR: 0.833, CiteScore: 4)
Artificial Life and Robotics     Hybrid Journal   (Followers: 10, SJR: 0.226, CiteScore: 0)
Asia Europe J.     Hybrid Journal   (Followers: 4, SJR: 0.504, CiteScore: 1)
Asia Pacific Education Review     Hybrid Journal   (Followers: 12, SJR: 0.479, CiteScore: 1)
Asia Pacific J. of Management     Hybrid Journal   (Followers: 16, SJR: 1.185, CiteScore: 2)
Asia-Pacific Education Researcher     Hybrid Journal   (Followers: 13, SJR: 0.353, CiteScore: 1)
Asia-Pacific Financial Markets     Hybrid Journal   (Followers: 3, SJR: 0.187, CiteScore: 0)
Asia-Pacific J. of Atmospheric Sciences     Hybrid Journal   (Followers: 19, SJR: 0.855, CiteScore: 1)
Asian Business & Management     Hybrid Journal   (Followers: 9, SJR: 0.378, CiteScore: 1)
Asian J. of Business Ethics     Hybrid Journal   (Followers: 11)
Asian J. of Criminology     Hybrid Journal   (Followers: 6, SJR: 0.543, CiteScore: 1)
AStA Advances in Statistical Analysis     Hybrid Journal   (Followers: 4, SJR: 0.548, CiteScore: 1)
AStA Wirtschafts- und Sozialstatistisches Archiv     Hybrid Journal   (Followers: 5, SJR: 0.183, CiteScore: 0)
ästhetische dermatologie & kosmetologie     Full-text available via subscription  
Astronomy and Astrophysics Review     Hybrid Journal   (Followers: 22, SJR: 3.385, CiteScore: 5)

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Similar Journals
Journal Cover
Aquaculture International
Journal Prestige (SJR): 0.591
Citation Impact (citeScore): 2
Number of Followers: 26  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1573-143X - ISSN (Online) 0967-6120
Published by Springer-Verlag Homepage  [2351 journals]
  • Microencapsulation of anthocyanins from roselle ( Hibiscus sabdariffa )
           and its application on a pigment supplied diet to fantail goldfish (
           Carassius auratus )
    • Abstract: Hibiscus sabdariffa has gained an important position in the food industry because of its high anthocyanins content, related to the persistent red calyx of its flowers as the major component. Moreover, it has been used as a food colorant and active ingredient to develop food with some health benefits. The effect of addition of microencapsulated anthocyanins from Hibiscus sabdariffa in a fish feed was evaluated using Carassius auratus as a study model. Anthocyanins were microencapsulated with maltodextrins (10 DE) and microcapsules structure was analyzed by scanning electron microscopy. Microcapsules were added to fish diet (D) at 150, 300, and 450 mg anthocyanin/kg of diet. Fantail goldfish were feeding for 8 weeks and the feed intake (FI), feed conversion ratio (FCR), growth rate (GR), specific growth rate (SGR), survival, and weight gain (WG) were evaluated. Skin chromatophores from the head, dorsal, and caudal fin of each treatment were observed by light microscopy. Microencapsulation efficiency was 90 ± 0.2%. The microcapsules showed a spherical shape, the mean size was 4.0 μm, and the powder showed a pink-red color. Feed intake and survival were similar to all diets (p > 0.05). D150 and D300 showed a significant variation in GR, SGR, and WG (p < 0.05) compared with other diets. Fish fed with D450 showed the highest increase in color compared with control diet; however, fish size is lower than D300. Size and color are important parameters in the marketing of Carassius, and these results suggest that microencapsulation can be used as anthocyanins carrier during fish diet manufacture being an alternative to provide natural pigments that enhance growth and pigmentation of fantail goldfish.
      PubDate: 2019-07-16
       
  • Recent progress in European percid fish culture production
           technology—tackling bottlenecks
    • Abstract: Eurasian perch (Perca fluviatilis) and pikeperch (Sander lucioperca) have been identified as candidates for production in aquaculture with the potential to deliver products of high quality and value and associated market acceptance. Current aquaculture production of these species predominately targets niche, premium markets, and its up-scaling is still limited due to several bottlenecks. This paper summarizes the most important and recent technological aspects and innovations regarding broodstock management, controlled reproduction, larval and early juvenile stages, nursery, and grow-out culture including methods for the improvement of growth and production in percid fishes. This review study also attempts to identify and outline further prospects and challenges for the future development of the percid aquaculture sector in Europe.
      PubDate: 2019-07-16
       
  • Impact of commercial probiotics on growth parameters of European catfish (
           Silurus glanis ) and water quality in recirculating aquaculture systems
    • Abstract: This study aimed to establish the impact of commercial probiotics on European catfish growth parameters and water quality in recirculating aquaculture systems. For the study, the European catfish were placed in two tanks with 45 fish in each tank. Average body weight and length at the beginning of the study were 133.0 g and 27.0 cm, respectively. Rearing conditions and feeding regime were identical, and the only difference was that 1 ml of commercial probiotics was poured into the water of one experimental tank every other day. The experiment lasted for 42 days. Weight and length were measured every 2 weeks. After each measurement, European catfish growth parameters, feed conversion ratios, and feed efficiency were established. After the end of the study, it was established that there were significant differences between specific growth speed, daily growth index, feed conversion ratio, and feed efficiency (P < 0.05) for the fish reared in two experimental groups. Statistically significant differences in the water parameters were established among ammonia, nitrite, and dissolved oxygen concentrations (P < 0.05). Differences in temperature, nitrates, and pH were statistically insignificant. The results of this study showed that commercial probiotics can be used in the European catfish culture to enhance water quality, feed efficiency, and growth performance.
      PubDate: 2019-07-15
       
  • Molecular identification of water molds (oomycetes) associated with chum
           salmon eggs from hatcheries in Japan and possible sources of their
           infection
    • Abstract: Oomycete infection of various freshwater animals, including salmonid eggs, causes significant economic damage to aquaculture worldwide. In this study, we detected oomycetes in infected chum salmon Oncorhynchus keta eggs at two hatcheries in northern Japan, in the source water used for egg incubation, and in the air at the hatcheries to clarify the source(s) of oomycete transmission using a DNA molecular marker. Seven oomycete taxa, belonging to Saprolegniaceae and Pythiaceae, were detected from the infected eggs. From the source water used for egg incubation and the air at the hatcheries, nine oomycete taxa, including those found on infected eggs, were detected, suggesting that both water and air are potential sources of oomycete transmission. There is no report of airborne transmission of these oomycetes detected in this study so far. Regarding protection and sterilization against oomycete infection in aquaculture hatcheries, not only water used at hatcheries but also the air in hatcheries may need to be considered hereafter.
      PubDate: 2019-07-15
       
  • The role of live fish trade in the translocation of parasites: the case of
           Cystidicola farionis in farmed rainbow trout ( Oncorhynchus mykiss )
    • Abstract: Cystidicola farionis is a nematode of the swim bladder that parasitizes Salmonidae and Osmeridae families, with a range of diffusion in Europe, Asia, and North America. During a fish health monitoring performed in July 2017 in a trout farm located in northwest Italy, a prevalence of 70% for C. farionis was recorded in rainbow trout from a unique tank. In order to clarify the first occurrence of this parasite in northwest Italy, a total of 180 specimens were analysed in different seasons to obtain prevalence, mean intensity, and mean abundance of infestation. Moreover, amphipods were also sampled during each fish sampling campaign. Only fish sampled in August 2017 were positive for C. farionis, since fish were then sold and replaced with a new batch. All isolated nematodes were identified by morphological criteria as subadults (L4), but not sexually matured. All examined amphipods (genus Gammarus) resulted negative for the presence of the parasite. The most probable explanation of this report was due to the movement of a single fish batch from northeast Italy, previously described as an endemic area for this parasite. The absence of the parasite in the amphipods and consequently in other fish batches from other tanks are due to the lifetime cycle of the parasite that had no time to infect new hosts.
      PubDate: 2019-07-13
       
  • Genetic diversity in natural populations of Colossomamacropomum in the
           Brazilian Amazon region and in populations farmed in Northeast Brazil
           based on ISSR markers
    • Abstract: The tambaqui (Colossoma macropomum) is a fish native to the Brazilian Amazon region and is an important species for the local aquaculture industry. In this study, genetic diversity of four tambaqui populations was assessed using inter-simple sequence repeat (ISSR) markers. We tested 140 specimens, 64 of which were collected from two fish farms located in the State of the Bahia from BAHIA PESCA S/A ((BA); 33 from Cachoeira-BA and 31 from Dias d’Ávila-BA), 46 from the Departamento Nacional de Obras Contra Seca (DNOCS) in Pentecoste in the State of Ceará (CE), and 30 from a wild population in Juruá River in the State of Amazonas (AM). Thirteen markers were used to test genetic structure and diversity. A total of 184 amplifieds were produced, 157 of which were polymorphic. The ratios of polymorphic loci varied across the four populations, with lower polymorphism in the population from Cachoeira-BA (54.35%) and higher polymorphism in the population from the Juruá River (79.35%). The indices of heterozygosity (H) and Shannon (I) were similar among the farmed populations and were lower than those in the natural population. Lower values were observed in the population of Cachoeira-BA (H = 0.1726; I = 0.2606), and the highest values in the Juruá River populations (H = 0.2404; I = 0.3643). Analysis of molecular variance revealed the highest variation occurred within populations (61%) and the difference between populations was low (39%). We concluded that compared with the wild population, farmed populations had lower genetic diversity and that genetic information must be used in future management schemes to improve genetic population structure.
      PubDate: 2019-07-13
       
  • The impact of trade and markets on Chilean Atlantic salmon farming
    • Abstract: Since the 1980s, aquaculture has developed rapidly around the world, outpacing all other sources of animal protein production. Chile is the largest producer in South America, with an export-driven aquaculture industry. Aquaculture development in Chile has largely focussed on three high-value species (Atlantic salmon, Rainbow trout and Chilean blue mussel). These three species accounted for over 90% of the volume and value of Chilean exports by 2014. The paper considers the role of trade and markets on Atlantic salmon production in Chile and the role of government regulators and industry to facilitate a further sustainable increase in farmed salmon output. Specifically, we address the opportunities and constraints regarding the impact of trade and markets for further industry expansion. We find that production constraints (e.g. regulation, over-production), marketing constraints (e.g. consumer perception) and environmental constraints (e.g. disease) have led to stagnating and sometimes declining production, preventing Chile from surpassing Norway and becoming the world’s largest Atlantic salmon producer. The paper concludes that the signs for further growth are positive in Chile, although to date, it is noted that industry expansion has outpaced developments in infrastructure, regulation and research and development. Most significantly, the industry has been blighted with environmental problems, which has weakened market share in recent years. However, better regulatory practice in Chile in recent years has been seen as positive in international markets. We note that further development in the regulatory framework and continued aspirations to meet certification standards (e.g. Aquaculture Stewardship Council, Global Aquaculture Alliance Certification) could lead to increased market share for Chilean farmed salmon in the future.
      PubDate: 2019-07-08
       
  • Effects of environmental light colors on the larviculture of the Amazon
           River prawn Macrobrachium amazonicum
    • Abstract: This study aimed to investigate the effects of red, yellow, green, violet, blue, and white light in Macrobrachium amazonicum larviculture. The trials were composed of six treatments (i.e., colors red, yellow, green, blue, violet, and white light in tanks) with four replicates each. Transparent tanks of 1 L of water, 10 salinity, and 2400 newly hatched larvae were used in trials. The larvae were fed Artemia salina nauplii and complemented with commercial shrimp feed daily. The light color affected the temperature, pH, and dissolved oxygen in the water culture and nauplii consumption, survival, and productivity of M. amazonicum. In the tanks with red light, the mean temperature was lower, while the oxygen and pH levels were higher than those with other colors. The mean consumption of A. salina nauplii was 15% higher by M. amazonicum in tanks with blue and violet light than red light. No difference in larval development was observed; however, larvae cultured under white light completed the larval cycle four days earlier than those cultured under red light. The productivity of larvae cultivated under white and violet light was 45% greater than larvae cultured under red light, and the survival was > 75%. Results indicated that M. amazonicum larval cultivation should be performed in tanks under bright light, preferably white, since other colors may negatively affect the larval development.
      PubDate: 2019-07-08
       
  • Optimized application of rotifers Brachionus plicatilis for rearing
           pikeperch Sander lucioperca L. larvae
    • Abstract: This study aimed to optimize the use of euryhaline rotifer Brachionus plicatilis for rearing larval pikeperch Sander lucioperca L. We assessed motility of rotifers under salinities of 0‰, 2‰, 4‰, 8‰, and 16‰ over a 6-h period. Rotifers stocked into freshwater were completely immotile within 2 h. The motility of rotifers after 6 h was 10 ± 2.27% at 2‰, 35 ± 5.58% at 4‰, 79 ± 30.35% at 8‰, and 92 ± 1.98% at 16‰. A second trial quantified the effect of the target salinity levels on pikeperch gut fullness over the course of 11 h. The gut fullness of larvae fed with rotifers was significantly lower at 8‰ salinity than in other tested groups. Salinity of 16‰ resulted in 100% mortality. Survival and growth of pikeperch larvae from 4 to 11 days post-hatching (DPH) was analyzed at low (2‰ and 4‰) and medium (8‰) salinity. Differences in larval performance under tested salinities were found in survival (S), total length, SGR, eye diameter, myotome height, and gut fullness. The highest mean survival (S) and specific growth rate (SGR) were obtained at 2‰ (S = 64%; SGR = 10 ± 5.4% day−1) and 4‰ (S = 65%; SGR = 8.23 ± 3.4% day−1) salinity and significantly differed from 8‰ (S = 36%; SGR = 5 ± 2.3% day−1) and control (S = 34%; SGR = 7 ± 3% day−1) at 11 DPH. At the conclusion of the trial (11 DPH), larvae of all exposures and control presented normal histology with no signs of pathology. Morphometric analyses revealed significant differences in brush border and fold height of anterior intestine among treatment groups. Larvae at 2‰ salinity showed significantly higher intestinal fold height (31.2 ± 5.40 μm) compared to those at 4‰ (26.5 ± 6.11 μm), 8‰ (26.3 ± 4.52 μm), and control (22.8 ± 5.13 μm) (p ˂ 0.05). Larvae at 4‰ salinity had significantly higher brush border height (2.50 ± 0.73 μm) compared to those at 2‰ (2.27 ± 0.63 μm) and 8‰ (1.87 ± 0.44 μm) salinity and control (1.66 ± 0.56 μm) (p < 0.05). The results showed 2‰ and 4‰ salinity supported higher numbers of motile B. plicatilis and higher larval survival and growth rate to 11 DPH.
      PubDate: 2019-07-04
       
  • How changes in water quality under the influence of land-based trout farms
           shape chemism of the recipient streams—case study from Serbia
    • Abstract: A total of eight trout farms with different production capacities located in highland regions of Serbia were selected for testing of their influence on water parameters of the recipient streams at 46 sites seven times in the course of a year. All of the trout farms can be divided into two groups with respect to the relationship of the values of the parameters recorded at their outlets and downstream sites and those recorded at the control sites. The study showed that trout farms most often cause a statistically significant increase in the contribution of fine particulate organic matter (FPOM %), in the concentrations of NH3, NH4+, and PO43− and in the values of total phosphorous (Pt) and water temperature (tw). On the other hand, they cause a statistically significant decrease in the values of dissolved oxygen. In our study, the parameter defined as the ratio of the annual production of a trout farm to the minimal water discharge (Pr/Qmin) showed a high degree of correlation with the majority of analysed parameters, proven to be a good predictive model for testing the farm’s influence on the recipient stream.
      PubDate: 2019-07-01
       
  • Yeast cell walls stimulate viability, respiratory burst, and phagocytosis
           in channel catfish ( Ictalurus punctatus ) head-kidney macrophages
    • Abstract: Yeast cell wall (YCW) preparations are important nutritional additives in the aquaculture industry. Head-kidney macrophages play important roles in innate immune functions in fish. However, the mechanisms underlying their stimulation are not yet characterized. The purpose of this study was to investigate the effects of YCW on immunological functions of channel catfish (Ictalurus punctatus) head-kidney macrophages. Our results showed that YCW preparations not only improved the proliferation and phagocytosis of macrophages but also induced the secretion of reactive oxygen species (ROS), nitric oxide (NO), inducible nitric oxide synthase (iNOS), and cytokines, such as tumor necrosis factor-α (TNF-α) and interleukin 1β (IL-1β). At a concentration of 500.0 μg/mL, YCW preparations stimulated macrophage proliferation and phagocytosis to 1.98 and 1.8 times, respectively, when compared with the negative group. Equally, YCW preparations raised the production of NO by inducing iNOS and ROS in a concentration-dependent manner. Furthermore, these preparations enhanced TNF-α and IL-1β mRNA levels to multiple digits from 1.2 to 3.0 times, respectively. In conclusion, the stimulatory effects of YCW on the phagocytic activity of the fish macrophages were associated with respiratory bursts coupled with nitric oxide production.
      PubDate: 2019-06-29
       
  • Saprolegnia parasitica impairs branchial phosphoryl transfer network in
           naturally infected grass carp (Ctenopharyngodon idella): prejudice on
           bioenergetic homeostasis
    • Abstract: Precise coupling of spatially separated intracellular adenosine triphosphate (ATP) producing and ATP-consuming exerts a key role in bioenergetic balance, and the phosphoryl transfer network, catalyzed by creatine kinase (CK), adenylate kinase (AK), and pyruvate kinase (PK), is fundamental in energetic homeostasis of tissues with high-energy requirements, as the branchial tissue. This whole system is very sensitive, and our hypothesis is that it can be altered in cases of infectious diseases in fish, such as that caused by the oomycete Saprolegnia parasitica. The effects of S. parasitica infection on gills remain poorly understood and limited only to histopathological studies. Thus, the aim of this study was to evaluate whether natural infection by S. parasitica impairs the enzymes of the phosphoryl transfer network in gills of grass carp (Ctenopharyngodon idella), as well as the pathways involved in this inhibition. In this study, we used sick carp and compared to healthy carp, fish of similar age and receiving the same feed, but allocated in different tanks. Branchial CK (cytosolic and mitochondrial) activity and ATP levels decreased in infected fish compared to uninfected on day 7 post-infection (PI), while no significant difference was observed between groups regarding branchial AK and PK activities. Branchial sodium-potassium ion pump (Na+, K+-ATPase) activity decreased in infected carp compared to uninfected on day 7 PI, while reactive oxygen species (ROS) and thiobarbituric acid reactive substance (TBARS) levels were higher. Gill histopathology revealed massive necrosis, loss of branchial epithelium, and detachment of the epithelium interlayer with structural loss of secondary lamellae. Based on these data, the impairment of CK activity elicited by S. parasitica caused an impairment in branchial energetic homeostasis, reducing the ATP availability in the gills and provoking an impairment on Na+, K+-ATPase activity. Moreover, the inhibition on CK activity appears to be mediated by ROS overproduction and lipid peroxidation, which contribute to disease pathogenesis linked to branchial tissue.
      PubDate: 2019-06-27
       
  • Correction to: Behavior and physiological status of pond-cultured
           pikeperch ( Sander lucioperca ) broodstock effected by sexual interactions
           throughout semi-artificial reproduction
    • Abstract: The original article unfortunately contains interchanged first and family name of the authors.
      PubDate: 2019-06-25
       
  • Study of the requirements of dietary cholesterol at two different growth
           stages of Pacific white shrimps, Litopenaeus vannamei
    • Abstract: Two 8-week feeding experiments were conducted to investigate the cholesterol requirements of Litopenaeus vannamei at two different growth stages—with initial body weights of 0.61 ± 0.00 g (juvenile) and 4.25 ± 0.00 g (subadult). Six diets containing cholesterol (C) 0.03% (FM-fish meal), 0.09% (0.05% C), 0.14% (0.1% C), 0.27% (0.2% C), 0.47% (0.4% C), and 0.90% (0.8% C) were prepared with red fish meal, dehulled soybean meal and peanut meal as the protein source, and fish oil as the fat source. Two levels of phytosterol (P) substitutes—0.05% (0.05% P) and 0.8% (0.8% P)—for dietary cholesterol were evaluated. Results showed dietary cholesterol levels had significant effects on the weight gain rate (WGR), specific growth rate (SGR), and feed conversion ratio (FCR) of juveniles (P < 0.05). Crude fat in the 0.05% C and 0.1% C groups of subadults was significantly higher than that in the FM group (P < 0.05). The contents of CHOL, HDL, LDL, and liver CHOL were significantly associated with the content of cholesterol (P < 0.05). The dietary cholesterol proportion significantly affected serum AST and ALT (P < 0.05). Phytosterol supplementation presented growth-promoting effects for juvenile L. vannamei. A broken-line equation for weight growth showed the optimum dietary cholesterol requirement was 0.16% for L. vannamei juveniles (0.61 ± 0.00 g), and no extra dietary cholesterol supplementation was needed for L. vannamei subadults (4.25 ± 0.00 g).
      PubDate: 2019-06-25
       
  • Development of denitrification in semi-automated moving bed biofilm
           reactors operated in a marine recirculating aquaculture system
    • Abstract: This study examined the performance of three independently operated denitrifying moving bed biofilm reactors (MBBRs) in a zero-exchange marine recirculating aquaculture system (RAS) stocked with European seabass (Dicentrarchus labrax). A semi-automated control strategy was applied to foster spontaneous denitrification. Process automation consisted of a pulsed carbon supply and an inflow of nitrate-rich, aerated process water controlled by the oxidation-reduction potential (ORP) in the MBBR. Carbon dosing frequency was adjusted manually if the process produced unwanted products (i.e., nitrite or ammonia). OPR-controlled inflow stimulated bacterial activities in the MBBRs until inflow reached the pre-set maximum at a hydraulic retention time (HRT) of 0.75 h. This allowed for a quick start-up of the denitrification processes in spite of high initial variability of process water inflow and of nitrate removal efficiency (NRE). A start-up with glycerol did not induce a stable denitrification process; however, after the process had been established with acetate, glycerol promoted efficient denitrification with NRE close to one. The successive application of the two carbon sources resulted in a high nitrate removal rate (NRR) of 2 kg nitrate-N m−3 day−1 in the biofilters. This diminished the concentration of nitrate-nitrogen (nitrate-N) in the RAS (volume 9 m3) from 176 to 36 g m−3 in 42 days with biofilters comprising only 1% of the RAS volume. The implications for the development of an automated denitrification process are discussed.
      PubDate: 2019-06-25
       
  • Seasonal and ontogenetic variability in stomach size of Eurasian perch (
           Perca fluviatilis L.)
    • Abstract: Eurasian perch (Perca fluviatilis) were sampled in April, from May to June and at the end of August to test whether the current season (i.e. feeding conditions) affects the fishes’ stomach size (i.e. volume and weight). A wide range of size data were analysed to reveal the relationship between fish size (length and weight) and stomach size. No significant differences in length-specific stomach volume or stomach weight were found in fish sampled at different times of the year. However, there were differences between seasons in the size of the stomach in relation to body weight, as length-specific body weight changes during the year because of the development of gametes and changes in nutritional status. Both stomach volume and weight grew obeying the power function up to about 20 cm in total length of perch. Yet, the growth was faster than that predicted by the cube law in relation to fish length, i.e. allometric. In larger fish, stomach growth decreased in relation to growth in length, and the relative weight of the stomach even decreased in the largest size class. These dynamics match well with the typical pattern of growth and ontogenic shift in diet from small invertebrates to fish. A non-proportional power function relationship was found between stomach weight and stomach volume.
      PubDate: 2019-06-22
       
  • Influence of mannan oligosaccharide supplementation on haematological and
           immunological responses and disease resistance of striped catfish (
           Pangasianodon hypophthalmus Sauvage, 1878) juveniles
    • Abstract: This study was carried out to evaluate the effect of mannan oligosacharide (MOS) as dietary supplement on haematological parameters, immune response and protection against Aeromonas hydrophila in striped catfish (Pangasianodon hypophthalmus, Sauvage, 1878) juveniles. Triplicate groups of juvenile striped catfish (initial weight 20.41 ± 1.64 g) were fed twice per day at 2.5% of body weight for 12 weeks, with 0 (control), 0.2, 0.4, 0.6 or 0.8% MOS diets. At the end of the feeding trial, fish were intraperitoneally challenged with 1 × 106 CFU ml−1of A. hydrophila and mortalities were recorded over 21 days. The haematological and immunological parameters were assessed both in pre- and post-challenged fish groups. Dietary inclusion of MOS did not show any significant influence on the majority of the haematological parameters of striped catfish when they were not infected. But it showed a significant positive influence on some of the most important parameters, namely RBC, WBC, lymphocyte, granulocyte and lysozyme activity and survival, after a 2-week challenge with A. hydrophila. After 2-week infection with A. hydrophila, a better concentration of red blood cell (RBC), white blood cell (WBC), granulocyte, total Ig content, lysozyme activity and survival were observed when striped catfish were fed with MOS at 0.4% and above, with significantly highest at 0.6% MOS diet than the control diet. Based on the results of this study, it is concluded that supplementation of MOS at least 0.4% is sufficient to activate the immune response and makes the striped catfish more resistant to A. hydrophila infection.
      PubDate: 2019-06-21
       
  • Development of growth-promoting substances for diatoms ( Navicula sp.)
    • Abstract: Abalone production in Korea has reached 5000 metric tonnes (MT) since 2000 and has been consistently increasing to reach 10,000 MT in 2015. Abalone fisheries are mainly seen in Wando on the south coast of Korea, where seaweed aquaculture has been majorly conducted. Mass mortality of abalone spats is considered a major problem in abalone fisheries and is caused by changes in environmental factors and food availability (including availability of benthic diatoms). However, it is difficult to supply sufficient quantities of benthic diatoms to post-larvae abalone. Therefore, we explored the development of growth-promoting substances for diatoms Navicula sp. and experimentally mixed several substances to enhance the growth of diatoms. In this study, we used alginic acid, fucoidan, Scytosiphon lomentaria, Ecklonia cava, Ecklonia cava processing byproduct (i.e., Ecklonia cava–boiled extracts, EBE), and Porphyra tenera. In addition, EBE, phosphate fertilizer (PF), nitrogenous manure (NM), and sodium silicate (SS) were mixed to determine the optimal composition of growth substances. The growth of diatoms significantly increased under EBE exposure, compared with other substances. During this study, attempts were made to identify the optimal composition of mixtures of PF, NM, and SS with that of EBE (1:1:1:1). The Navicula sp. growth-promoting substance (NGPS) mixture enhanced Navicula sp. growth by 150% compared with existing market products. We were therefore able to develop a substance that promotes the growth of diatoms, thereby facilitating the cultivation of healthy abalone with reduced mortality.
      PubDate: 2019-06-21
       
  • A review of betanodavirus vaccination as preventive strategy to viral
           nervous necrosis (VNN) disease in grouper
    • Abstract: Viral disease outbreak is the most serious issue as it may cause severe losses to farmers as well as to economy in the marine industry worldwide. Among fish viral diseases, betanodavirus is a significant pathogen that causes viral nervous necrosis (VNN) and can result in mass mortalities to fish culture especially at larval stages. In Malaysia, betanodavirus had been isolated from groupers, seabass, red snappers, and golden pomfret. Recently, inconsistent seed supply is observed due to viral infection at larval stages which limits the growth of fish culture. Therefore, seeds of grouper are often imported from neighboring countries such as Indonesia by farmers. Strict importation regulations should be practiced as the importation of fish seeds may become a possible source of the virus entering the country. It is a challenge to track farmers who are affected by the disease in order to segregate or eliminate the VNN carrier spawners. This scenario had resulted in incomplete destruction of diseased fish population and leads to re-occurrence of the disease at the early stage of grouper. This situation warrants immediate attention to develop promising prevention strategies such as a new vaccine which is very important and could work effectively with better farm management approaches. This article discusses the occurrence of viral nervous necrosis (VNN) disease in Malaysia and reviews possible preventive measures via vaccination to combat the disease.
      PubDate: 2019-06-19
       
 
 
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