Results 21 to 30 of about 167,181 (264)
Density dependent attributes of fish aggregative behaviour
PeerJ, 2019 Grouping behaviour, as fascinating as it is unclear, has lately drawn the attention of numerous researchers. While most of the authors focused their work on a mechanistic approach to the matter of schooling, this study explores the issue from a population point of view.
Michaela Holubová +3 more
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Aquaculture Reports, 2023 Current salmonid hatchery practices typically include high rearing densities without structure within the water column. In the present study, we assessed the effects of low (conservation hatchery) and high (production hatchery) rearing densities on the ...
Crystal L. Herron +5 more
doaj +1 more source
Factors triggering floodplain fish emigration: importance of fish density and food availability [PDF]
Ecology of Freshwater Fish, 2009 Abstract – Emigration is a widespread phenomenon among fish species in seasonal habitats, but little is known about the factors which trigger individuals to emigrate to new habitats. In controlled experiments using Tilapia guineensis, a species widely occurring in the seasonal floodplains of West Africa, density of fish played a significant role in ...
Vasilis, Louca +2 more
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Acta Limnologica Brasiliensia, 2013 AIM: To study the distribution, structure, size and density of fish in the karst lake: Lagoa Central (Lagoa Santa, MG - surface area: 1.7 km²; mean depth: 4.0 m; and maximum depth: 7.3 m).
José Fernandes Bezerra-Neto +2 more
doaj +1 more source
E3S Web of Conferences, 2018 Giant Freshwater Prawn is one of the freshwater commodity which have an economy value where Nilem carp has also potentially to be cultured to produce fingerling size as a “baby fish”.
Setiadi Eri, Taufik Imam
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Self‐Organized Shape and Frontal Density of Fish Schools [PDF]
Ethology, 2008 AbstractModels of swarming (based on avoidance, alignment and attraction) produce patterns of behaviour also seen in schools of fish. However, the significance of such similarities has been questioned, because some model assumptions are unrealistic [e.g.
Hemelrijk, Charlotte K. +1 more
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Importance of prey size on investigating prey availability of larval fishes.
PLoS ONE, 2021 Prey availability plays an important role in determining larval fish survival. Numerous studies have found close relationships between the density of mesozooplankton and larval fishes; however, emerging studies suggest that small-size zooplankton are ...
Yu-Hsuan Huang +3 more
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Estimating Fish Densities from Single Fish Echo Traces [PDF]
The Open Ocean Engineering Journal, 2009 Estimating mean fish density per unit area has been done by counting single fish echo traces with a split beam echo sounder system in the open sea. A data program has been written that scans the acoustic signals for echo peaks and classify these into echo traces.
openaire +2 more sources
Aquaculture Reports, 2020 The present study investigated the impact of stocking density and dietary carbon sources on the growth, oxidative status and stress markers of Nile tilapia (Oreochromis niloticus) reared under biofloc conditions.
Mohamed A.A. Zaki +6 more
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INTENSIVE PRODUCTION OF COMMON CARP(Cyprinus carpio .L.) FINGERLINGS REARED IN CONCRETE PONDS [PDF]
Journal of Animal and Poultry Production, 2010 This study was carried out to investigate the effect of different stocking densities on the growth performance of common carp (Cyprinus carpio) fingerlings reared in concrete ponds to produce the requested fingerlings prior to the next production season.
E. Attia, M. Hussein, N. Abdel-Hakim
doaj +1 more source