Results 1 to 10 of about 29,092 (120)

COMPARISON OF WHITE-CLAWED CRAYFISH POPULATIONS IN IRISH AND FRENCH STREAMS, WITH COMMENTS ON ITS FUTURE SURVIVAL IN EUROPE

Knowledge and Management of Aquatic Ecosystems, 2006
White-clawed crayfish Austropotamobius pallipes (Lereboullet) populations remain strong in Ireland across a range of river and lake habitats, but the species is in decline elsewhere in Europe where it is sympatric with alien species.
REYNOLDS J. D., DEMERS A.
doaj   +1 more source

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

‬‭Majallah-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

Knowledge 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

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

Knowledge 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., Boegh E., Olsen M., Pedersen S., Dunbar M.J., Jensen J.K.   +5 more
doaj   +1 more source

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

Knowledge 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, Berry Matthew, Sewell Samantha, Lees Corina, Reading Peter   +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

Aquaculture 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, Dong-Liang Lu, Zhe-Yue Jiang, Samwel Mchele Limbu, Fang Qiao, Li-Qiao Chen, Mei-Ling Zhang, Zhen-Yu Du   +7 more
doaj   +1 more source

Using of betaine to replace fish meal with soybean or/and corn gluten meal in nile tilapia (Oreochromis niloticus) diets: Histomorphology, growth, fatty acid, and glucose-related gene expression traits

Aquaculture Reports, 2020
The present study was conducted to replace fish meal with alternative plant protein sources in aquafeeds. Therefore, soybean meal (SBM), corn gluten meal (CGM), and mix of SBM + CGM were used as alternatives to fish meal (FM) with or without betaine (B ...
Taha Ismail, Elsayed Hegazi, Mahmoud A.O. Dawood, Eldesoky Nassef, Abdelnasser Bakr, Bilal Ahamad Paray, Hien Van Doan   +6 more
doaj   +1 more source

Répartition actuelle du crabe chinois (Eriocheir sinensis H. Milne Edwards) en France

Knowledge and Management of Aquatic Ecosystems, 1959
1. — L'extension du Crabe chinois (Eriocheir sinensis) est en dépendance des migrations de l'espèce et du milieu saumâtre ou marin nécessaire à la reproduction. 2. — Actuellement, le Crabe chinois n'est pas abondant dans le Nord de la France bien qu'
HOESTLANDT H.
doaj   +1 more source

Dietary administration of Enterococcus faecalis affects the growth, disease resistance and immune function of tilapia (Oreochromis niloticus)

Aquaculture Reports, 2020
The present study aimed to investigate the growth, disease resistance and immune function of tilapia (Oreochromis niloticus) fed diets containing Enterococcus faecalis at levels of 0 (CG), 1 × 105 (EF1), 1 × 106 (EF2), 1 × 107 (EF3) or 1 × 108 CFU/g diet
Hongqin Li, Li Luo, Ying Zhou, Huayun Ling, Qihui Yang, Desheng Qi   +5 more
doaj   +1 more source