Results 51 to 60 of about 34,164 (238)

Effect of different dietary protein levels on growth, carcass biochemical composition and apparent digestibility coefficient in juvenile Caspian trout (Salmo trutta caspius)

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2019
The effects of dietary protein levels were investigated on growth, carcass biochemical composition and apparent digestibility coefficient in Caspian trout, Salmo trutta caspius.
M. Mohseni; M. Pourkazemi; M. Karaminasab; M.E. Rastravan
doaj  

The ecological requirements of caddisflies larvae (Insecta: Trichoptera) and their usefulness in water quality assessment of a river in south-west Romania

open access: yesKnowledge and Management of Aquatic Ecosystems, 2013
This survey analyzed the eco-physiological requirements of caddisflies assemblages in Jiu River (south- west Romania). The output revealed that the communities are driven by a synergic combination of natural factors and pollutants ...
Pirvu M., Pacioglu O.
doaj   +1 more source

Apex predators exploit advantageous snow conditions across hunting modes

open access: yesJournal of Animal Ecology, EarlyView.
Advantageous snow conditions—in terms of snow depth and density—are among the most important features of the winter landscape for two apex predators, regardless of hunting strategy. In a warming climate, the knock‐on effects of a diminishing snowpack may reduce the hunting success of multiple large carnivore species.
Benjamin K. Sullender   +7 more
wiley   +1 more source

Daytime habitat selection for juvenile parr brown trout (Salmo trutta) in small lowland streams

open access: yesKnowledge and Management of Aquatic Ecosystems, 2014
Physical habitat is important in determining the carrying capacity of juvenile brown trout, and within freshwater management. Summer daytime physical habitat selection for the parr lifestage (7–20 cm) juvenile brown trout (Salmo ...
Conallin J.   +5 more
doaj   +1 more source

Correspondence: When Human Understanding of Fish Invasion is Blurred [PDF]

open access: yes, 2008
Leprieur et al.’s observation that fish invasions are blurred by human activity (Leprieur et al. 2008 doi:10.1371/journal.pbio.0060028) correctly reflected the well established understanding that fish invasion is human mediated (1-4).
Gozlan, Rodolphe Elie
core  

Spatial distribution of introduced brook trout Salvelinus fontinalis (Salmonidae) within alpine lakes: evidences from a fish eradication campaign [PDF]

open access: yes, 2017
Brook trout Salvelinus fontinalis have been used worldwide to stock fishless alpine lakes, negatively affecting native biota. Understanding its spatial ecology in invaded ecosystems can provide information to interpret and contrast its ecological impact.
Brighenti, S.   +4 more
core   +1 more source

Hox Gene Variation Drives Morphological Specialization of Humpback Grouper Cromileptes altivelis

open access: yesIntegrative Zoology, EarlyView.
Cromileptes altivelis exhibits a distinctive “sunken head and humpback” morphology, formed through cranial remodeling. Genetic analyses identified unique amino acid variants in Hoxa7a and Hoxa10b, with functional tests confirming their role in enhancing osteoblast activity and driving cranial remodeling.
Xiaoying Cao   +4 more
wiley   +1 more source

Importance of small fishes and invasive crayfish in otter Lutra lutra diet in an English chalk stream

open access: yesKnowledge and Management of Aquatic Ecosystems, 2017
The diet composition of the European otter Lutra lutra was assessed using spraint analysis in the Hampshire Avon, a lowland chalk stream in Southern England, over an 18-month period.
Britton J. Robert   +4 more
doaj   +1 more source

Dietary L-carnitine improves glycogen and protein accumulation in Nile tilapia via increasing lipid-sourced energy supply: An isotope-based metabolic tracking

open access: yesAquaculture Reports, 2020
L-carnitine is a functional aquafeed additive for enhancing lipid catabolism by elevating mitochondrial fatty acid β-oxidation and modulating energy metabolism to provide a “protein sparing effect”.
Ling-Yu Li   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy