Results 51 to 60 of about 34,115 (202)

Farklı Omurgalı Türlerinde Bazı Sindirim Kanalı Bölgelerinin Histolojik ve Histokimyasal Yapısı

open access: yesSüleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2014
Özet: Bu çalışmanın amacı, farklı omurgalı türlerinin (Mus musculus, Coturnix coturnix ve Salmo trutta) sindirim kanalının bazı bölgelerinin histolojik yapısı ve mukus hücrelerindeki glikoproteinlerinin histokimyasal tekniklerle belirlemektir. Çalışmada,
Nurgül ŞENOL   +2 more
doaj  

Hybridization With a Non‐Native Congener Threatens the Catalan Chub (Squalius laietanus): Optimization of a DNA‐Based Early Warning Tool

open access: yesIntegrative Zoology, EarlyView.
Hybridization with non‐native congeners threatens endemic freshwater fishes. Using a rapid and cost‐effective nuclear DNA assay, we detected widespread hybridization between the Catalan chub (Squalius laietanus) and the non‐native European chub (Squalius cephalus) across S.
Núria Pérez‐Bielsa   +4 more
wiley   +1 more source

Effects of introduced trout predation on non-diadromous galaxiid fish populations across invaded riverscapes [PDF]

open access: yes, 2013
We assessed the landscape-scale effect of predation pressure from trout on the population integrity and distributions of non-diadromous galaxiids in high-country streams of the South Island, New Zealand.
Darragh J. Woodford, Angus R. McIntosh
core  

Temperature-induced sex reversal is not responsible for sex-ratio distortions in grayling Thymallus thymallus or brown trout Salmo trutta [PDF]

open access: yes, 2013
On the basis of the experiments carried out over various years, it was concluded that (1) grayling Thymallus thymallus and brown trout Salmo trutta are resistant to temperature-induced sex reversal at ecologically relevant temperatures, (2) environmental
Pompini, M.   +6 more
core   +1 more source

Padronização de uma PCR para a autenticação do Salmo salar em pratos da culinária japonesa

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia
RESUMO O objetivo deste trabalho foi padronizar uma PCR para a detecção do Salmo salar, a qual possa ser usada na autenticação do salmão utilizado em pratos da culinária japonesa e do pescado comercializado in natura. Para isso, dois lotes de sushi foram
E.P.M. Gonçalves   +5 more
doaj   +1 more source

The ichthyofauna of the upper Neretva River

open access: yesNatura Sloveniae, 2023
Fish were sampled at nine locations of the upper Neretva River, upstream of Glavatičevo. Evidence of the endangered softmouth trout (Salmo obtusirostris) was obtained as well as the presence of other native and non-native salmonids.
Jakob Neuburg   +13 more
doaj   +1 more source

Downstream Passage Performance of European Silver Eels (Anguilla anguilla): The Importance of Phenotypic Variation and Rack Design

open access: yesAnimal Conservation, EarlyView.
During their spawning migration, European silver eels frequently encounter hydropower facilities where successful downstream passage is essential for the conservation of this critically endangered species. In this study, we evaluated how three angled rack designs and individual behavioral variation influenced downstream passage success in large‐scale ...
Dennis Leandersson   +8 more
wiley   +1 more source

Delovanje ekstendera i krioprotektanata na motilitet spermatozoida potočne pastrmke (salmo trutta macrostigma) posle otapanja [PDF]

open access: yes, 2015
Cilj ovog rada je identifikacija protokola zamrzavanja spermatozoida specifičnog za vrstu potočne pastrmke (Salmo trutta macrostigma) optimizacijom svih stadijuma tokom procedure krioprezervacije.
Karaca, Fikret   +2 more
core  

Behavioural Diversity of Fishes: Concepts, Drivers and Its Role in Conservation and Management

open access: yesFish and Fisheries, EarlyView.
ABSTRACT Human activity has altered nearly all ecosystems on Earth, contributing to substantial biodiversity loss across taxonomic, genetic and functional dimensions, from the intraspecific to the ecosystem scale. Yet some components of biodiversity remain hidden or underappreciated, including behavioural diversity.
Marie Prchalová   +25 more
wiley   +1 more source

Fatty acids of neutral and phospholipids of three endangered trout: Salmo trutta caspius Kessler, Salmo trutta labrax Pallas and Salmo trutta macrostigma Dumeril

open access: yes, 2010
Total (TL), neutral (NL) and phospholipid (PL) amounts and fatty acid (FA) composition of female Salmo trutta caspius, Salmo trutta labrax and Salmo trutta macrostigma were investigated during one year.
Aras, N. Mevluet   +5 more
core   +1 more source

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