Results 21 to 30 of about 31,652 (258)

Changes in the structure and functionof the North Sea fish foodweb, 1973-2000, and the impacts of fishing and climate [PDF]

open access: yes, 2005
North Sea environmental and biological data were analysed to examine 30-year changes in production and consumption in the fish food web. The analysis revealed that the demand for secondary production placed on the ecosystem by fish declined from ...
Beare   +47 more
core   +1 more source

Gut contents and trophodynamics of riverine catfish Rita rita (Hamilton 1822) inhabiting Bangladesh waters

open access: yesEgyptian Journal of Aquatic Research, 2021
This study aimed to investigate the diet composition, potential food preferences, and trophodynamics (trophic level) of Riverine catfish Rita rita collected from the Surma River, Bangladesh. For this purpose, gut contents of 151 of R. rita were examined.
Nurnobi Nishad   +5 more
doaj   +1 more source

Community Change within a Caribbean Coral Reef Marine Protected Area following Two Decades of Local Management [PDF]

open access: yes, 2015
Structural change in both the habitat and reef-associated fish assemblages within spatially managed coral reefs can provide key insights into the benefits and limitations of Marine Protected Areas (MPAs).
Berumen, Michael L.   +3 more
core   +1 more source

The Guild Composition for Modelling Fish Community in Banjaran River, Purwokerto

open access: yesBiosaintifika: Journal of Biology & Biology Education, 2018
Over exploitation of consumed fishes causes declining of  targeted fish populations that will lead to a cascade effect to the guild compositions. The change of carnivorous, omnivorous and herbivorous fish populations drives to the food chain destructions
Windiariani Lestari   +3 more
doaj   +1 more source

Glucose tolerance in six fish species reared in Brazil: Differences between carnivorous and omnivorous

open access: yesAnais da Academia Brasileira de Ciências, 2021
The objective of this study was to evaluate the effect of pure glucose, glucose plus fructose, and fructose on the blood glucose of omnivorous fish tambaqui (Colossoma macropomum), Nile tilapia (Oreochromis niloticus), piau (Leporinus elongatus), and ...
ANDERSON M. DE SOUZA   +4 more
doaj   +1 more source

On the methodology of feeding ecology in fish [PDF]

open access: yes, 2016
Feeding ecology explains predator’s preference to some preys over others in their habitat and their competitions thereof. The subject, as a functional and applied biology, is highly neglected, and in case of fish, a uniform and consistent ...
Saikia, Surjya Kumar
core   +3 more sources

Identification of specific demands on Feed in Dutch Organic Aquaculture [PDF]

open access: yes, 2009
The evaluation of specific demands for organic feed focussed on feed demands for four fish species which can be cultured in Recirculation Aquaculture Systems (RAS), tilapia, African Catfish, shrimp and turbot.
Poelman, M.
core   +7 more sources

Growth and feeding behavior of fishes in organic rice–fish systems with various species combinations

open access: yesAquaculture Reports, 2021
Four combinations of fish and prawn species were stocked in organic rice–fish systems to examine their growth performance, feeding habits, competitive interactions, and food-web structure.
Samnao Saowakoon   +5 more
doaj   +1 more source

Níveis de mercúrio em peixes consumidos pela comunidade indígena de Sai Cinza na Reserva Munduruku, Município de Jacareacanga, Estado do Pará, Brasil Mercury levels in fish consumed by the Sai Cinza indigenous community, Munduruku Reservation, Jacareacanga County, State of Pará, Brazil

open access: yesCadernos de Saúde Pública, 1999
O estudo consiste em avaliar os níveis de mercúrio no pescado consumido pela comunidade indígena de Sai Cinza (Reserva Munduruku) no Estado do Pará, e associá-los com os hábitos de consumo da população.
Edilson da Silva Brabo   +4 more
doaj   +1 more source

Trophic interactions of meso- and macrozooplankton and fish in the Iceland Sea as evaluated by fatty acid and stable isotope analysis [PDF]

open access: yes, 2012
A trophic study was carried out in August of 2007 and 2008 on the pelagic ecosystem in the Subarctic Iceland Sea. Carbon and nitrogen stable isotopes and fatty acid biomarkers were used to study trophic linkages and the trophic ecology of the most ...
Falk Petersen, Stig   +2 more
core   +3 more sources

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