Results 31 to 40 of about 34,115 (202)

Survival and growth rates of juvenile salmonids reared in lowland streams

open access: yesArchives of Polish Fisheries, 2016
The aim of this study was to assess the efficiency of propagating juvenile trout, Salmo trutta L. in small lowland streams and to evaluate the impact of the environmental conditions in the streams on the juvenile fish.
Golski Janusz   +4 more
doaj   +1 more source

BREEDING AND EXPLOITATION OF NATIVE SALMONIDS SPECIES WITH A VIEW TO DIVERSITY THE FISH PRODUCTION AND PRESERVE THE BIODIVERSITY

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
In Romania, the salmon breeding is the second branch of pisciculture as importance, but the obtained production is very small (about 1240 to; ANPA, 2005) and enough limited as bred species (brown trout - Salmo trutta fario, brook trout - Salvelinus ...
ANCA BOARU   +5 more
doaj  

Heart conditioned response in Salmo trutta (L.) In the field of inductive current [PDF]

open access: yesActa Ichthyologica et Piscatoria, 1970
Heart conditioned responses in Salmo trutta (L.) in the field of inductive current were investigated by means of the cardiographic method. High excitability grade was proved.
R. Węgrzynowicz   +2 more
doaj   +3 more sources

The effect of the size of sea trout (Salmo trutta L.) females from Rega River upon the size of eggs [PDF]

open access: yesActa Ichthyologica et Piscatoria, 1985
The aim of work was to assess statistically the effect of body length, weight and age of sea trout (Salmo trutta L.) females from Rega River upon average diameter and weight of swollen eggs, and weight of mature eggs.
Z. Chełkowski   +3 more
doaj   +3 more sources

Seasonal effects of the fatty acid composition of phospholipid and triacylglycerol in the muscle and liver of male Salmo trutta macrostigma

open access: yesGrasas y Aceites, 2021
The seasonal effects on the fatty acid composition of triacylglycerol (TAG) and phospholipid (PL) in the muscle and liver of male Salmo trutta macrostigma were determined using the gas chromatographic (GC) method.
S. Kaçar, H. Kaya, M. Başhan
doaj   +1 more source

Developmental and Behavioral Effects of Arsenobetaine in Zebrafish (Danio rerio)

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT Arsenobetaine (AsB) is a prevalent organoarsenical in aquatic environments and is generally regarded as nontoxic. Despite its widespread occurrence, the developmental and neurobehavioral toxicity of AsB has not been systematically investigated.
Sravan Kumar Putnala   +8 more
wiley   +1 more source

Water temperature effects on cardiographic changes in Salmo trutta (L.) [PDF]

open access: yesActa Ichthyologica et Piscatoria, 1970
Investigations upon the lability of frequency and strength of heart systoles in Salmo trutta (L.) influenced by water temperature changes were carried out.
R. Węgrzynowicz, R. Zbanyszek
doaj   +3 more sources

A Multi‐Method Approach to Assessing Barrier Effectiveness in Preventing the Spread of Invasive Signal Crayfish (Pacifastacus leniusculus)

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Relieving barriers and increasing free flowing rivers is a global imperative to restore habitat connectivity for migratory fish stocks. While reducing river fragmentation will certainly improve biodiversity, the spread of non‐native species throughout a river system may be facilitated as an inadvertent outcome.
Matthew Harwood   +5 more
wiley   +1 more source

Short duration reservoir-release impacts on impounded upland rivers [PDF]

open access: yes, 2013
The increasing number and scale of river impoundments throughout the 19th and 20th centuries means that the management of these impoundments is crucial to the future of global riverine biota.
TOSNEY, JONAH,JAMES
core  

The Role of Sediment Supply on Fish Habitat Dynamics of a Morphologically Active River Widening

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Restoration measures, such as river widening, aim to reactivate key morphodynamic processes, which are critical drivers of fluvial habitat dynamics. While some evidence supports the important role of sediment supply on river widening's morphology, its link to fish habitat availability and dynamics remains unclear.
Mahmoud O. M. Awadallah   +4 more
wiley   +1 more source

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