Results 91 to 100 of about 31,652 (258)

The difference of the composition and digestive enzymes of gut microbiome in herbivorous blunt snout bream (Megalobrama amblycephala) and carnivorous largemouth bass (Micropterus salmoides)

Aquaculture and Fisheries
Blunt snout bream (Megalobrama amblycephala) and largemouth bass (Micropterus salmoides) are a herbivorous and a carnivorous freshwater fish species respectively.
Lin Yu, Zihao Yuan, Xin Huang, Zexia Gao, Han Liu   +4 more
doaj   +1 more source

Global meta‐analysis reveals urban‐associated behavioural differences among wild populations

Journal of Animal Ecology, EarlyView.
Urbanization drives rapid phenotypic change, yet broad patterns of behavioural responses remain unclear. Using a global phylogenetic meta‐analysis, we show urban populations exhibit increased boldness, aggression, exploration and activity—especially in birds—highlighting consistent behavioural shifts and revealing major taxonomic gaps that limit our ...
Tracy T. Burkhard, Ned A. Dochtermann, Anne Charmantier   +2 more
wiley   +1 more source

Carcass yield of surubins Pseudoplatystoma spp. reared in ponds under different stocking densities

Semina: Ciências Agrárias, 2014
The aim of this study was to evaluate carcass yield of surubins Pseudoplatystoma spp. reared in ponds under different stocking densities. We performed a completely randomized design, with three treatments (density) and nine repetitions.
Letícia Emiliani Fantini , Carlos Antonio Lopes de Oliveira , Robson Andrade Rodrigues   +2 more
doaj   +1 more source

Domestic feed sources to farmed Arctic Charr (Salvelinus alpinus) [PDF]

, 2010
This study presents an overview of recapturing nutrients from Baltic Sea thru mussel farming and producing mussel meal, detoxification of polluted fish into purified high quality fish meal and oil and introducing microorganisms as waste consumers as well
Muminovic, Muhamed
core   +1 more source

Increased tolerance to humans among disturbed wildlife. [PDF]

, 2015
Human disturbance drives the decline of many species, both directly and indirectly. Nonetheless, some species do particularly well around humans. One mechanism that may explain coexistence is the degree to which a species tolerates human disturbance ...
Blumstein, Daniel T, Nakagawa, Shinichi, Nomura, Fausto, Rangel, Thiago F, Samia, Diogo SM   +4 more
core   +3 more sources

A reassessment of the carnivorous status of salmonids: Hepatic glucokinase is expressed in wild fish in Kerguelen Islands

Science of The Total Environment, 2018
Salmonids belong to a high trophic level and are thus considered as strictly carnivorous species, metabolically adapted for high catabolism of proteins and low utilisation of dietary carbohydrates. However they conserved a "mammalian-type" nutritional regulation of glucokinase encoding gene and its enzymatic activity by dietary carbohydrates which ...
Marandel, Lucie, Gaudin, Philippe, Gueraud, Francois, Glise, Stéphane, Herman, Alexandre, Plagnes- Juan, Elisabeth, Veron, Vincent, Panserat, Stéphane, Labonne, Jacques   +8 more
openaire   +3 more sources

Predator‐guild‐specific parental responses mitigate higher predation risk on ground nests close to forest patches in a mosaic landscape

Journal of Animal Ecology, EarlyView.
Predation increases close to habitat edges, but how animals cope with local predation variations remained poorly studied. In a mosaic landscape, lapwings were compensating for increased nest predation close to forests. They acted more aggressively towards an avian predator when nesting close to trees, but comparatively tamer against a mammal.
Guillaume Dillenseger, Justine Delautre, Ankitha Jayanth, Zora Marchal, Petr Veselý, Vojtěch Kubelka   +5 more
wiley   +1 more source

Mercury bioaccumulation in fish of commercial importance from different trophic categories in an Amazon floodplain lake

Neotropical Ichthyology
Thirty-two species of commercially important fish from three trophic levels and nine trophic categories were sampled at a floodplain lake of the Solimões River (Lago Grande de Manacapuru).
Sandra Beltran-Pedreros, Jansen Zuanon, Rosseval Galdino Leite, José Reinaldo Pacheco Peleja, Alessandra Barros Mendonça, Bruce Rider Forsberg   +5 more
doaj   +1 more source

Aquaculture development in Thailand [PDF]

, 1988
Aquaculture practised in Thailand is in the form of pond culture and cage culture in freshwater, brackishwater and coastal areas. The main species cultured include freshwater prawns, brackishwater shrimp, cockles, mussels, and various freshwater and ...
Chaiyakam, Kanit, Luanprida, Somsak, Sirikul, Boonsong, Sriprasert, Revadee   +3 more
core   +1 more source

Comparison of Three Sympatric Desert Lizards: Digestive Tract Structure, Digestive Enzyme Activities, Gut Microbiota, and Metabolites

Integrative Zoology, EarlyView.
We performed 16S rDNA sequencing and metabolite profiling for three sympatric lizard species—Teratoscincus roborowskii, Phrynocephalus axillaris, and Eremias roborowskii—and compared their goblet cell and enzyme activities in the digestive tract. Our study suggests that the dietary niche may promote divergence or convergence of microbiota across host ...
Yi Yang, Ziyi Wang, Ruichen Wu
wiley   +1 more source