Results 31 to 40 of about 34,115 (202)
Survival and growth rates of juvenile salmonids reared in lowland streams
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
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]
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]
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
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)
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]
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
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]
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
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

