Results 11 to 20 of about 82,204 (193)
Evaluation of Sustainable Utilization of African Marine Fishery Resources
Fishes, 2022 Sustainable utilization evaluation is the basis for ensuring the sustainable exploitation of fisheries’ resources. This paper explores the changes in the mean trophic level of African marine fish catches during a 70-year period based on the statistical ...
Mo Bi, Zhenke Zhang, Xinya Guo, Lei Wan
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Trophic levels of Tidal and Non-Tidal Marshes of Southern Mesopotamia
Maǧallaẗ al-baṣraẗ al-ʻulūm al-zirāʻiyyaẗ, 2020 Carlson’s Trophic State Index (CTSI) was applied to assess the trophic status of two kind of southern Mesopotima marshes. Six stations were selected, three in non-tidal Chebiyesh marshes and other three in tidal East Hammer marsh.
Najah A. Hussain, Amal A. Sabbar
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Trophic Ecology of Deep-Sea Megafauna in the Ultra-Oligotrophic Southeastern Mediterranean Sea
Frontiers in Marine Science, 2022 The trophic ecology of fourteen species of demersal fishes and six species of demersal decapod crustaceans from the continental slope and rise of the Southeastern Mediterranean Sea (SEMS) was examined using stable isotope analysis. Mean δ13C values among
Tamar Guy-Haim +2 more
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Estimating Trophic Levels and Trophic Magnification Factors Using Bayesian Inference [PDF]
Environmental Science & Technology, 2013 Food web biomagnification is increasingly assessed by estimating trophic magnification factors (TMF) where solvent (often lipid) normalized contaminant concentration is regressed onto the trophic level, and TMFs are represented by the slope of the relationship.
Starrfelt, Jostein +3 more
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Can biomass distribution across trophic levels predict trophic cascades? [PDF]
Ecology Letters, 2020 Abstract The biomass distribution across trophic levels (biomass pyramid) and cascading responses to perturbations (trophic cascades) are archetypal representatives of the interconnected set of static and dynamical properties of food chains.
Galiana, Núria +5 more
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Feeding and growth variations affect δ13C and δ15N budgets during ontogeny in a lepidopteran larva
Peer Community Journal, 2023 Isotopes are widely used in ecology to study food webs and physiology. The fractionation observed between trophic levels in nitrogen and carbon isotopes, explained by isotopic biochemical selectivity, is subject to important within-trophic level ...
Charberet, Samuel M. +4 more
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Marine and Fishery Sciences, 2021 Food habits and diet composition of Patagonian flounder Paralichthys patagonicus (Jordan, 1889) were studied on the basis of stomach content analyses from 828 specimens (512 females, 304 males, 12 unsexed) collected during 16 commercial cruises between ...
Gonzalo H. Troccoli +4 more
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Frontiers in Water, 2021 Streams and rivers are globally threatened ecosystems because of increasing levels of exploitation, habitat degradation and other anthropogenic pressures.
Alfred O. Achieng +6 more
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Foods, 2023 Bioaccumulation is the process by which living organisms accumulate substances, such as pesticides, heavy metals, and other pollutants, from their environment.
Enrique Lozano-Bilbao +7 more
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Plant-associate interactions and diversification across trophic levels [PDF]
Evolution Letters, 2021 Interactions between species are widely understood to have promoted the diversification of life on Earth, but how interactions spur the formation of new species remains unclear. Interacting species often become locally adapted to each other, but they may also be subject to shared dispersal limitations and environmental conditions.
Jeremy B. Yoder +3 more
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