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  Subjects -> BIOLOGY (Total: 3126 journals)
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BIOLOGY (1490 journals)                  1 2 3 4 5 6 7 8 | Last

Showing 1 - 200 of 1720 Journals sorted alphabetically
AAPS Journal     Hybrid Journal   (Followers: 22)
Achievements in the Life Sciences     Open Access   (Followers: 5)
ACS Synthetic Biology     Hybrid Journal   (Followers: 24)
Acta Biologica Colombiana     Open Access   (Followers: 7)
Acta Biologica Hungarica     Full-text available via subscription   (Followers: 4)
Acta Biologica Sibirica     Open Access  
Acta Biomaterialia     Hybrid Journal   (Followers: 27)
Acta Biotheoretica     Hybrid Journal   (Followers: 4)
Acta Chiropterologica     Full-text available via subscription   (Followers: 6)
acta ethologica     Hybrid Journal   (Followers: 4)
Acta Limnologica Brasiliensia     Open Access   (Followers: 3)
Acta Médica Costarricense     Open Access   (Followers: 2)
Acta Musei Silesiae, Scientiae Naturales     Open Access  
Acta Neurobiologiae Experimentalis     Open Access  
Acta Parasitologica     Hybrid Journal   (Followers: 10)
Acta Scientiarum. Biological Sciences     Open Access   (Followers: 2)
Acta Scientifica Naturalis     Open Access   (Followers: 3)
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis     Open Access  
Actualidades Biológicas     Open Access   (Followers: 1)
Advanced Health Care Technologies     Open Access   (Followers: 4)
Advanced Journal of Graduate Research     Open Access  
Advanced Studies in Biology     Open Access  
Advances in Antiviral Drug Design     Full-text available via subscription   (Followers: 2)
Advances in Bioinformatics     Open Access   (Followers: 17)
Advances in Biological Regulation     Hybrid Journal   (Followers: 4)
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Advances in Virus Research     Full-text available via subscription   (Followers: 5)
African Journal of Range & Forage Science     Hybrid Journal   (Followers: 6)
AFRREV STECH : An International Journal of Science and Technology     Open Access   (Followers: 1)
Ageing Research Reviews     Hybrid Journal   (Followers: 11)
Aging Cell     Open Access   (Followers: 16)
Agrokémia és Talajtan     Full-text available via subscription   (Followers: 2)
Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat     Open Access  
AJP Cell Physiology     Hybrid Journal   (Followers: 15)
AJP Endocrinology and Metabolism     Hybrid Journal   (Followers: 24)
AJP Lung Cellular and Molecular Physiology     Hybrid Journal   (Followers: 3)
Al-Kauniyah : Jurnal Biologi     Open Access  
Alasbimn Journal     Open Access   (Followers: 1)
Alces : A Journal Devoted to the Biology and Management of Moose     Open Access  
AMB Express     Open Access   (Followers: 1)
Ambix     Hybrid Journal   (Followers: 3)
American Biology Teacher     Full-text available via subscription   (Followers: 14)
American Fern Journal     Full-text available via subscription   (Followers: 1)
American Journal of Agricultural and Biological Sciences     Open Access   (Followers: 8)
American Journal of Bioethics     Hybrid Journal   (Followers: 12)
American Journal of Human Biology     Hybrid Journal   (Followers: 13)
American Journal of Medical and Biological Research     Open Access   (Followers: 8)
American Journal of Plant Sciences     Open Access   (Followers: 19)
American Journal of Primatology     Hybrid Journal   (Followers: 14)
American Malacological Bulletin     Full-text available via subscription   (Followers: 3)
American Naturalist     Full-text available via subscription   (Followers: 74)
Amphibia-Reptilia     Hybrid Journal   (Followers: 6)
Anadolu University Journal of Science and Technology : C Life Sciences and Biotechnology     Open Access  
Anaerobe     Hybrid Journal   (Followers: 4)
Analytical Methods     Full-text available via subscription   (Followers: 11)
Anatomical Science International     Hybrid Journal   (Followers: 2)
Animal Cells and Systems     Hybrid Journal   (Followers: 4)
Animal Models and Experimental Medicine     Open Access  
Annales de Limnologie - International Journal of Limnology     Hybrid Journal   (Followers: 1)
Annales françaises d'Oto-rhino-laryngologie et de Pathologie Cervico-faciale     Full-text available via subscription   (Followers: 3)
Annales Henri Poincaré     Hybrid Journal   (Followers: 3)
Annals of Applied Biology     Hybrid Journal   (Followers: 7)
Annals of Biomedical Engineering     Hybrid Journal   (Followers: 18)
Annals of Human Biology     Hybrid Journal   (Followers: 5)
Annual Review of Biomedical Engineering     Full-text available via subscription   (Followers: 14)
Annual Review of Biophysics     Full-text available via subscription   (Followers: 23)
Annual Review of Cancer Biology     Full-text available via subscription   (Followers: 2)
Annual Review of Cell and Developmental Biology     Full-text available via subscription   (Followers: 37)
Annual Review of Food Science and Technology     Full-text available via subscription   (Followers: 14)
Annual Review of Genomics and Human Genetics     Full-text available via subscription   (Followers: 23)
Annual Review of Phytopathology     Full-text available via subscription   (Followers: 12)
Anthropological Review     Open Access   (Followers: 23)
Anti-Infective Agents     Hybrid Journal   (Followers: 3)
Antibiotics     Open Access   (Followers: 9)
Antioxidants     Open Access   (Followers: 4)
Antioxidants & Redox Signaling     Hybrid Journal   (Followers: 8)
Antonie van Leeuwenhoek     Hybrid Journal   (Followers: 5)
Anzeiger für Schädlingskunde     Hybrid Journal   (Followers: 1)
Apidologie     Hybrid Journal   (Followers: 4)
Apmis     Hybrid Journal   (Followers: 1)
APOPTOSIS     Hybrid Journal   (Followers: 8)
Applied Bionics and Biomechanics     Open Access   (Followers: 8)
Applied Vegetation Science     Full-text available via subscription   (Followers: 10)
Aquaculture Environment Interactions     Open Access   (Followers: 3)
Aquaculture International     Hybrid Journal   (Followers: 24)
Aquaculture Reports     Open Access   (Followers: 3)
Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society     Open Access   (Followers: 7)
Aquatic Biology     Open Access   (Followers: 5)
Aquatic Ecology     Hybrid Journal   (Followers: 34)
Aquatic Ecosystem Health & Management     Hybrid Journal   (Followers: 15)
Aquatic Science and Technology     Open Access   (Followers: 3)
Aquatic Toxicology     Hybrid Journal   (Followers: 23)
Archaea     Open Access   (Followers: 3)
Archiv für Molluskenkunde: International Journal of Malacology     Full-text available via subscription   (Followers: 3)
Archives of Biological Sciences     Open Access  
Archives of Microbiology     Hybrid Journal   (Followers: 8)
Archives of Natural History     Hybrid Journal   (Followers: 6)
Archives of Oral Biology     Hybrid Journal   (Followers: 2)
Archives of Virology     Hybrid Journal   (Followers: 5)
Archivum Immunologiae et Therapiae Experimentalis     Hybrid Journal   (Followers: 2)
Arid Ecosystems     Hybrid Journal   (Followers: 2)
Arquivos do Instituto Biológico     Open Access   (Followers: 1)
Arquivos do Museu Dinâmico Interdisciplinar     Open Access  
Arthropod Structure & Development     Hybrid Journal   (Followers: 2)
Arthropods     Open Access   (Followers: 1)
Artificial DNA: PNA & XNA     Hybrid Journal   (Followers: 3)
Asian Bioethics Review     Full-text available via subscription   (Followers: 3)
Asian Journal of Biodiversity     Open Access   (Followers: 4)
Asian Journal of Biological Sciences     Open Access   (Followers: 3)
Asian Journal of Cell Biology     Open Access   (Followers: 5)
Asian Journal of Developmental Biology     Open Access   (Followers: 2)
Asian Journal of Medical and Biological Research     Open Access   (Followers: 4)
Asian Journal of Nematology     Open Access   (Followers: 4)
Asian Journal of Poultry Science     Open Access   (Followers: 4)
Atti della Accademia Peloritana dei Pericolanti - Classe di Scienze Medico-Biologiche     Open Access  
Australian Life Scientist     Full-text available via subscription   (Followers: 2)
Australian Mammalogy     Hybrid Journal   (Followers: 6)
Autophagy     Hybrid Journal   (Followers: 2)
Avian Biology Research     Full-text available via subscription   (Followers: 4)
Avian Conservation and Ecology     Open Access   (Followers: 11)
Bacteriology Journal     Open Access   (Followers: 1)
Bacteriophage     Full-text available via subscription   (Followers: 3)
Bangladesh Journal of Bioethics     Open Access  
Bangladesh Journal of Plant Taxonomy     Open Access  
Bangladesh Journal of Scientific Research     Open Access   (Followers: 1)
Batman Üniversitesi Yaşam Bilimleri Dergisi     Open Access  
Berita Biologi     Open Access   (Followers: 1)
Between the Species     Open Access   (Followers: 1)
Bio Tribune Magazine     Hybrid Journal  
BIO Web of Conferences     Open Access  
BIO-Complexity     Open Access  
Bio-Grafía. Escritos sobre la Biología y su enseñanza     Open Access  
Bioanalytical Reviews     Hybrid Journal   (Followers: 2)
Biocatalysis and Biotransformation     Hybrid Journal   (Followers: 6)
BioCentury Innovations     Full-text available via subscription   (Followers: 1)
Biochemistry and Cell Biology     Hybrid Journal   (Followers: 15)
Biochimie     Hybrid Journal   (Followers: 7)
BioControl     Hybrid Journal   (Followers: 5)
Biocontrol Science and Technology     Hybrid Journal   (Followers: 5)
Biodemography and Social Biology     Hybrid Journal  
BioDiscovery     Open Access   (Followers: 2)
Biodiversitas : Journal of Biological Diversity     Open Access  
Biodiversity Data Journal     Open Access   (Followers: 4)
Biodiversity Informatics     Open Access   (Followers: 1)
Biodiversity Information Science and Standards     Open Access  
Biodiversity: Research and Conservation     Open Access   (Followers: 26)
Bioedukasi : Jurnal Pendidikan Biologi FKIP UM Metro     Open Access  
Bioeksperimen : Jurnal Penelitian Biologi     Open Access  
Bioelectrochemistry     Hybrid Journal   (Followers: 2)
Bioelectromagnetics     Hybrid Journal   (Followers: 1)
Bioenergy Research     Hybrid Journal   (Followers: 2)
Bioengineering and Bioscience     Open Access   (Followers: 1)
BioEssays     Hybrid Journal   (Followers: 10)
Bioethics     Hybrid Journal   (Followers: 15)
BioéthiqueOnline     Open Access  
Biofabrication     Hybrid Journal   (Followers: 5)
Biofilms     Full-text available via subscription   (Followers: 1)
Biogeosciences (BG)     Open Access   (Followers: 10)
Biogeosciences Discussions (BGD)     Open Access   (Followers: 2)
Bioinformatics     Hybrid Journal   (Followers: 305)
Bioinformatics and Biology Insights     Open Access   (Followers: 11)
Bioinspiration & Biomimetics     Hybrid Journal   (Followers: 7)
Biointerphases     Open Access   (Followers: 1)
Biojournal of Science and Technology     Open Access  
BioLink : Jurnal Biologi Lingkungan, Industri, Kesehatan     Open Access  
Biologia     Hybrid Journal  
Biologia on-line : Revista de divulgació de la Facultat de Biologia     Open Access  
Biological Bulletin     Partially Free   (Followers: 6)
Biological Control     Hybrid Journal   (Followers: 4)
Biological Invasions     Hybrid Journal   (Followers: 20)
Biological Journal of the Linnean Society     Hybrid Journal   (Followers: 18)
Biological Letters     Open Access   (Followers: 5)
Biological Procedures Online     Open Access  
Biological Psychiatry     Hybrid Journal   (Followers: 47)
Biological Psychology     Hybrid Journal   (Followers: 6)
Biological Research     Open Access  
Biological Rhythm Research     Hybrid Journal   (Followers: 2)
Biological Theory     Hybrid Journal   (Followers: 3)
Biological Trace Element Research     Hybrid Journal  

        1 2 3 4 5 6 7 8 | Last

Journal Cover
Aquaculture Reports
Journal Prestige (SJR): 0.618
Citation Impact (citeScore): 2
Number of Followers: 3  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2352-5134
Published by Elsevier Homepage  [3161 journals]
  • Assessment of water quality and phytoplankton community of Limpenaeus
           vannamei pond in intertidal zone of Hangzhou Bay, China

    • Abstract: Publication date: August 2018Source: Aquaculture Reports, Volume 11Author(s): Meng Ni, Ju-lin Yuan, Mei Liu, Zhi-min GuAbstractThis study was conducted to understand the associations between water quality and the phytoplankton community in intertidal mudflat pond of Limpenaeus vannamei, in the region around Hangzhou Bay. The water parameters at each sampling site were measured monthly including temperature, pH, dissolved oxygen, salinity, ammonia, natrite, nitrite, total nitrogen, total phosphateand CODMn. The cultivation water met or exceeded the class V surface water quality standard. Total nitrogen, phosphate and CODMnwere the main exceeding standard factors. The Principal component analysis (PCA) result showed that total phosphorus (0.743), total nitrogen (0.728), ammonia (0.417) and nitrate (0.691) were the main factors. A total of 84 phytoplankton species were isolated, which were comprised of 59 genera of 8 phyla.Tianhe site recorded the highest phytoplankton abundance (942.5 × 105 in./L, July) and biomass (12.46 mg/L, July). The major peaks in phytoplankton abundance were mostly associated with the proliferation of certain Chlorophyta (Merismopediatenuissima, Microcystisaeruginosa and Phormidiumtenus). The Margalef richness index classified the sampled water as being mildly or moderately polluted. Pielou evenness index (0.59–0.82) and Shannon-Wiener diversity index (1.93–2.49) also demonstrated a slight or moderate pollution. Canonical correlation analyses (CCA) results revealed that CODMn, followed by total nitrogen, total phosphorus, ammonia, temperature, salinity, pH, dissolved oxygen, nitrate and nitrite exhibited a close relation with dominant species. In particular, most species in this study showed significant correlation with temperature, pH and dissolved oxygen. While CODMn and ammonia distributed on the opposite direction. Phytoplankton such as Merismopedia, Schroederia and Closterium showed positive relationships with total nitrogen and total phosphorus.
       
  • Effect of commercial probiotics addition in a biofloc shrimp farm during
           the nursery phase in zero water exchange

    • Abstract: Publication date: August 2018Source: Aquaculture Reports, Volume 11Author(s): Joe Luis Arias-Moscoso, Luis Gabriel Espinoza-Barrón, Anselmo Miranda-Baeza, Martha Elisa Rivas-Vega, Mario Nieves-SotoAbstractIn biofloc technology systems (BFT) the bacterial community plays the most important role at recycling the organic matter and metabolizing the toxic nitrogenous compounds. The aim of this study was to evaluate the effect of two groups of commercial probiotics on the abundance of viable heterotrophic bacteria (VHB), ammonia oxidizing bacteria (AOB) and Vibrio-like (VLB), nitrogenous compounds and productive parameters of whiteleg shrimp Litopenaeus vannamei in a commercial farm. The study was developed during nursery phase in zero water exchange. Two groups of probiotics (PB1 and PB2) and one control (PBN; no probiotic) were evaluated in three replics. Shrimp postlarvae (7.3 mg) were stocked in ponds (70 m3) at densities of 500 in./m2. Commercial probiotics (Efinol PT-Lab. Robles and Epicin ponds-Epicin hatcheries) were incubated for 36 h in bioreactors (1 m3) and supplied every 3 d in PB1 and PB2 treatments. Basic variables of water quality, nitrogenous compounds and bacterial groups were monitored. At the beginning of the experiment, the abundance of VHB was lower in the PBN treatment, but as the bioassay progressed, the densities were similar to PB1 and PB2. In general VLB showed similar tendency to VHB, but significant difference were determined among treatments. The AOB abundance was similar in all treatments. Nitrogenous compounds and productive parameters of shrimp did not show significant differences between treatments. In the PBN ponds the zero water exchange could have promoted benefical bacteria of the natural biota. The addition of probiotics did not improve the water quality nor productive response of L. vannamei.
       
  • Effect of pH, osmolality and temperature on sperm motility of pink
           cusk-eel (Genypterus blacodes, (Forster, 1801))

    • Abstract: Publication date: August 2018Source: Aquaculture Reports, Volume 11Author(s): Kelly Dumorné, Iván Valdebenito, Pablo Contreras, Patricio Ulloa Rodríguez, Jennie Risopatron, Elías Figueroa, Manuel Lee Estevez, Rommy Díaz, Jorge FaríasAbstractIn this research we evaluated simple aspects of the sperm biology of Genypterus blacodes, in particular assessing the effects of pH (6, 7, 8 and 9), temperature (4, 8 and 16 °C) and osmolalities 100% sea water (1010 mOsm/kg, Control), 75% sea water (774 mOsm/kg, T1), 50% sea water (488 mOsm/kg, T2) and distilled water (0 mOsm/kg, T3)) on the motility of Genypterus blacodes intratesticular spermatozoa.In addition, we determined the fertilization rate. Our results show that G. blacodes spermatozoa have a sperm density of 5.35 ± 0.16 × 109 spermatozoa/mL. Sperm motility is initiated on contact with a hyperosmotic swimming medium under normal conditions (1010 mOsm/kg, pH 8 and 8 °C). The longest motility duration (432.48 ± 8.89 s) was recorded at 4 °C. The maximum percentage of motile cells was recorded at 8 °C (65.66 ± 4.95) at osmolality 1010 mOsm/kg, whereas an optimum was observed at pH 8. The fertility rate was 73.9 ± 17%. This is the first report on sperm motility of G. blacodes spermatozoa. In conclusion, the results of this study permit a baseline to be established for further research and protocols for artificial reproduction of this species to be developed and optimized. In addition, the information gathered in this research will be useful for developing the biotechnology of Genypterus blacodes.
       
  • Fin morphology variation in Aphanius farsicus in two local
           populations

    • Abstract: Publication date: August 2018Source: Aquaculture Reports, Volume 11Author(s): Sareh Yaripour, Mehrdad Zamanpoore, Raine KortetAbstractThe teleost genus Aphanius is currently composed of at least 32 species. Here, we present observational data from breeding experiments in which we studied two local populations of the Farsi tooth-carp A. farsicus in captivity. Combinations of parental fish from both populations were allowed to spawn in separate aquaria. The resulting offspring showed unpredictable variations in their dorsal and anal fin shapes, including backward extended fins, dual or singular fins, as well as normal fin forms. This variation in A. farsicus fins likely affects the swimming performance of these fish. We judge that the observed fin shape variation in A. farsicus could become an inviting trait for the ornamental fish industry, because of the potential of producing fish with elaborate and attractive fins through selective breeding procedures.
       
  • An overview of domestication potential of Barbus altianalis
           (Boulenger, 1900) in Uganda

    • Abstract: Publication date: August 2018Source: Aquaculture Reports, Volume 11Author(s): C. Aruho, J.K. Walakira, J. RutaisireAbstractDomestication of fish is a key strategy for diversification of farmed species to meet consumer’s choices and demands as well as conservation of the species for sustainable provision of nutrition benefits and incomes. Initial successful induced spawning of Barbus altianalis was achieved, but there is low adoption attributed to lack of sufficient quality seed. This paper reviews the ecological and social-economic trends, and potential prospects that justify the domestication of this high value indigenous species, and identify gaps that could be addressed to increase seed production for commercialization. Review findings show that due to overexploitation, there is a steady decline of B. altianalis in Ugandan water bodies, with no current record from Lake Victoria where catches had in the past been reported. B. altianalis shows ability to survive in interlacustrine-riverine environments although, the juveniles are largely confined in the river or stream water. Varying levels of adaptability and tolerance to environmental conditions including oxygen and temperature by different age groups occur. The species has a great potential for culture as an omnivorous species with high chances of adapting to varying feeding strategies. Knowledge gaps in size at maturity, appropriate inducing hormones, growth conditions, egg hatchability and larvae weaning were identified as key challenges associated with B. altianalis domestication. Understanding the underlying natural ecological dynamics of B. altianalis will guide further research in the areas mentioned to ensure advancement in domestication so as to meet the rising demand for B. altianalis. This will curtail its overexploitation in the wild and also improve the livelihoods of the communities in the region.
       
  • Effect of isolated bacteria and microalgae on the biofloc characteristics
           in the Pacific white shrimp culture

    • Abstract: Publication date: August 2018Source: Aquaculture Reports, Volume 11Author(s): Juan M. Pacheco-Vega, Marco A. Cadena-Roa, Jesús A. Leyva-Flores, O. Iram Zavala-Leal, Elizabeth Pérez-Bravo, Javier M.J. Ruiz-VelazcoAbstractAt present, the Pacific white shrimp Litopenaeus vannamei Boone, 1931, is one of the species with the greatest potential to be reared under biofloc Technology (BFT). Although BFT presents promising culture methods, some of these require improvements in efficiency by the use of native microalgae and bacteria (BFNO) as an alternative to commercial organism probiotics (BFCO). This experiment was developed using a culture system for the shrimp L. vannamei to a stocking density of 400 in./m3 for 44 days. Schizochytrium sp. and recently isolated Latobacillus plantarum (class: Bacilli), a probiotic strain (used as experimental biofloc), were incorporated to geomembrane tanks holding 28 m3 seawater to evaluate if these presented bioregulating effects influencing water quality and growth performance of L. vannamei. These microorganisms were compared with the BFCO. Results showed that both promoted bioflocs maintained optimal concentrations of total ammonium, nitrites, and nitrates for L. vannamei cultures. However, the BFCO required to be supplied every 10 days, whereas the experimental biofloc only required an initial stocking and maintenance of sodium carbonate levels>100 mg L−1 and pH > 7.5. Additionally, the load of Vibrio spp. in experimental biofloc was less than that observed for BFCO. Furthermore, the results of growth performance did not demonstrate differences between both treatments. Therefore, it is suggested that Schizochytrium sp. and the bacterial strain of L. plantarum should be used as initiator and basic constituents of the biofloc-based culture systems for L. vannamei, maintaining good water quality and avoiding periodical probiotic supplementation in cultures.
       
  • Potentials of integrated multi-trophic aquaculture (IMTA) in freshwater
           ponds in Bangladesh

    • Abstract: Publication date: August 2018Source: Aquaculture Reports, Volume 11Author(s): Abu Syed Md. Kibria, Mohammad Mahfujul HaqueAbstractAn experimental study was carried out for a period of six months to assess the potential of integrated multi-trophic aquaculture (IMTA) in earthen freshwater ponds. Nine earthen ponds (40 m2 each) were randomly assigned to three treatments in triplicate. Carps and stinging catfish; carps, stinging catfish, and snails; and carps, stinging catfish, snails, and water spinach as IMTA, were assigned to T1, T2, and T3, respectively. The stocking densities were: carps: 20,000 fingerlings ha−1 at a ratio of 3: 1: 2: 2 for catla: silver carp: rohu: mrigal; stinging catfish: 24,700 fingerlings ha−1 in cage-in-pond for all treatments; and snails: 62 kg ha−1 in T2 and T3. The carps were fed with supplementary feed, a mixture of rice bran and wheat bran (1: 1) at the rate of 3–5% of fish biomass; the stinging catfish with commercial feed for the first 45 days, and snail-mixed pelleted feed for the rest of the experimental period, at the rate of 5–25% of body weight. The highest survival, particularly of silver carp, mrigal, and stinging catfish was found in T3, i.e., in IMTA ponds. The weight gain of silver carp, rohu, and stinging catfish was the highest in IMTA ponds. The highest yields of the carps and stinging catfish in cage-in-ponds were obtained in IMTA ponds. The production of snails and water spinach in IMTA ponds contributed to the biomitigation process of organic and inorganic waste, keeping the water quality within suitable conditions for fish culture.
       
  • Influence of environmental salinity and cortisol pretreatment on gill
           Na+/K+ −ATPase activity and survival and growth rates in Cyprinus carpio
           

    • Abstract: Publication date: August 2018Source: Aquaculture Reports, Volume 11Author(s): Manoharan Saravanan, Mathan Ramesh, Rakpong Petkam, Rama Krishnan PoopalAbstractThe aim of this study was to investigate the effects of environmental salinity (2.5, 5, and 7.5‰), and cortisol pretreatment (0.01, 0.1, and 1 μg l−1) on gill Na+/K+-ATPase activity and survival and growth rates in a common carp, Cyprinus carpio (L.). Cortisol pretreated fish in water (0‰), showed a significant increase in gill Na+/K+-ATPase activity after 3 days of exposure when compared to that of the control groups. In contrast, cortisol pretreated fish exposed to various salinities (2.5, 5, and 7.5‰) showed a low level of gill Na+/K+-ATPase activity during the study period of 14 days. However, the gill Na+/K+-ATPase activity on day 7th and 14th day was found to be not significant (except 0.01 μg l−1 cortisol treatment at 5‰, and 7.5‰, respectively). We observed that the fish showed a great adaptation to all salinities and a higher survival rate during the study period. However, a long-term exposure study is needed to assess the effects of environmental salinity and cortisol pretreatments on these aspects for a desirable development in aquaculture practices.
       
  • Nutritional value of hydrothermally processed Jatropha curcas kernel and
           its effect on growth and hematological parameters of Clarias gariepinus
           fingerlings (Burchell, 1822)

    • Abstract: Publication date: May 2018Source: Aquaculture Reports, Volume 10Author(s): Sarah Ojonogecha Musa, Lateef Oloyede Tiamiyu, Shola Gabriel Solomon, Victoria Offuene Ayuba, Victor Tosin OkomodaAbstractThe anti-nutritional components of Jatropha curcas have long limited the use of this unconventional feed ingredient in animal nutrition. In this study, the nutritional value of hydrothermally processed J. curcas kernel (JCK) meal in the diet of African catfish Clarias gariepinus (Burchell, 1822) was investigated. Upon processing in boiling water (100 °C) for 0, 30, 60, and 90 min, the nutritional characteristics of the JCK improved as the process was prolonged. However, many essential amino acids were reduced beyond 30 min of processing. Four isonitrogenous (35% CP) and isocaloric (315 kcal g−1) diets were then formulated with the inclusion of processed JCK at 29% and fed to the fingerlings of C. gariepinus for 56 days. The processed JCK performed better than the control diet. The optimal time of processing which gave the maximum weight gain (9 ± 0.54 g) was 62 mins using the second order polynomial regression analysis. The dietary inclusion of the processed JCK meal resulted in significant improvement in the blood parameters of the fish compared to those fed raw JCK. Similarly, the cost of feed and fish production was substantially reduced with inclusion of the processed JCK. It was therefore concluded that hydrothermal processing improved the nutritional profile of JCK and its dietary utilization by African catfish C. gariepinus fingerlings.
       
  • Modulation of growth performance, immunological responses and disease
           resistance of juvenile Nile tilapia (Oreochromis niloticus) (Linnaeus,
           1758) by supplementing dietary inosine monophosphate

    • Abstract: Publication date: May 2018Source: Aquaculture Reports, Volume 10Author(s): Md. Abdul Kader, Mahbuba Bulbul, Ambok Bolong Abol-Munafi, Md. Asaduzzaman, Sohel Mian, Noordiyana Bt. Mat Noordin, Md. Eaqub Ali, Md. Sakhawat Hossain, Shunsuke KoshioAbstractThis study was investigated to examine supplemental effects of dietary inosine monophosphate (IMP) on growth performance, feed utilization, biochemical, hematological and immunological parameters of juvenile Nile tilapia Oreochromis niloticus. Disease resistance to experimental infection with Streptococcus agalactiae was also assessed. A semi-purified basal diet was supplemented with 0 (IMP0, Control), 1 (IMP1), 2 (IMP2), 4 (IMP4) and 8 (IMP8) g purified IMP kg−1 diet to formulate five experimental diets. Each diet was randomly allocated to triplicate groups of fish (0.59 g) for 60 days. The results indicated that supplementation of IMP significantly (P  0.05). Among whole body proximate composition and somatic parameters, condition factor was significantly influenced by dietary supplementation of IMP. A wide variation in hematological parameters were observed and dietary supplementation increased the hematocrit content (P  0.05). Total serum protein (TSP), lysozyme activity (LA), superoxide dismutase activity (SOD) and bactericidal activity (BA) tended to increase with the supplementation of dietary IMP. TSP and SOD were significantly improved with ≥4 g kg−1 supplementation, while LA with 8 g kg−1 and BA with ≥1 g kg−1 supplementations. IMP supplemented groups showed higher (P > 0.05) cumulative survival compared to that of supplementation free control group. IMP supplemented diet groups also showed significantly higher BA in the post challenge test. Based on the overall performances, the results of the current study indicated that the inclusion of IMP in Nile tilapia diet can improve growth performance, feed utilization, haematological and immunological parameters; and disease resistance of juvenile Nile tilapia.
       
  • Effects of dietary protein to energy ratios on growth performance of
           yellowfoot limpet (Cellana sandwicensis Pease, 1861)

    • Abstract: Publication date: May 2018Source: Aquaculture Reports, Volume 10Author(s): Anthony Mau, Rajesh JhaAbstractThe aquaculture of yellowfoot limpets (Cellana sandwicensis) is a prospect industry in research and development. The effects of dietary protein to energy (PE) ratio on growth performance were evaluated for 180 days in a flow-through system. Replicate animals (5.9 ± 1.72 g and 33.9 ± 2.13 mm) were stocked randomly on individual plates, and four paste diets containing PE ratios ranging from 87.2 to 102.9 mg/kcal were offered once daily (1600 h). A significant increase in daily feed intake (P  0.05), average daily gain (ADG) and feed conversion efficiency (FCE) improved both linearly and quadratically (ADG P = 0.03, P = 0.08; FCE P = 0.05, P = 0.04, respectively). These results indicate potential seasonal growth patterns, which are controlled by environmental cues (i.e. temperature, feed availability, etc.) and must be considered in future trials. Limpets offered higher PE ratio diets did not compensate for lower energy levels with increased feed intake, and specific growth rate increased up to 0.20% BW/d as the dietary PE ratio decreased. A PE ratio of 87.2 mg/kcal produced the best tissue growth and can be recommended as a suitable formulated diet for limpet production.
       
  • Metabolic and immune effects of orange-spotted grouper, Epinephelus
           coioides induced by dietary arginine

    • Abstract: Publication date: May 2018Source: Aquaculture Reports, Volume 10Author(s): Fenglu Han, Shuyan Chi, Beiping Tan, Xiaohui Dong, Qihui Yang, Hongyu Liu, Shuang Zhang, Di Liu, Yuanfa HeAbstractArginine (Arg) as an important substrate for protein metabolism and endocrine influences on fish health directly. To evaluate the effect of dietary Arg on these endocrine and immunity of juvenile orange-spotted grouper (Epinephelus coioides), an experiment adding Arg with 0.00, 0.30, 0.60, 0.90, 1.20, 1.50, and 1.80% in seven diets was conducted. Dietary Arg levels reached 2.13 (Diet 1), 2.42 (Diet 2), 2.71 (Diet 3), 2.95 (Diet 4), 3.20 (Diet 5), 3.48 (Diet 6) and 3.74% (Diet 7), respectively. Each treatment was randomly assigned to triplicate groups of 30 fish (7.52 ± 0.02 g) each tank. The present results indicated that different Arg levels of diets were no significant effects on the fish survival rate of each groups (P > 0.05) after 8 weeks feeding experiment. The highest weight gain and specific growth rate were found in Diet 4, and significantly higher than the other groups (P 
       
  • Development of immune functionality in larval and juvenile crimson snapper
           Lutjanus erythropterus (Bloch 1790)

    • Abstract: Publication date: May 2018Source: Aquaculture Reports, Volume 10Author(s): Ke Cui, Zhilu Fu, Dachuan Cheng, Qibin Yang, Zhenhua Ma, Jian G. Qin, Jing HuAbstractOntogenetic development of the immune system in crimson snapper (Lutjanus erythropterus Bloch 1790) larvae was histologically and enzymatically studied from hatch to 36 days post-hatch (DPH). Primitive hepatopancreas appeared on 2 DPH and renal tubules started hematopoiesis on 4 DPH. The spleen anlage appeared on 6 DPH and the thymus formed on 14 DPH. Total activities of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX) and sodium-potassium adenosine triphosphatase (Na+ K+-ATPase) gradually increased after hatch, and showed a sharp increase after 29 DPH during the transitional feeding period from Artemia to inert feed. The specific activities of SOD, CAT, and GPX showed a trend of sharp increase and reached the maximum level on 4 DPH when exogenous feeding started, except for Na+ K+-ATPase where the peak occurred on10 DPH. The specific activities of these five enzymes reached the peak during the food transition from rotifers to Artemia, but the total activity of enzymes showed an increasing trend as fish grew. The present study provides new knowledge of the development of functional enzymes relevant to fish larvae immunity, sheds light on the understanding of the change of larval health, and improves hatchery management of crimson snapper.
       
 
 
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