Results 101 to 110 of about 10,537 (244)

Mitochondrial respiratory capacities are not linked to individual variation in hypoxia tolerance and standard metabolic rate in European seabass Dicentrarchus labrax

open access: yesJournal of Fish Biology, EarlyView.
Abstract In hypoxic environments, fish attempt to regulate their metabolic rate as oxygen levels in the water decline. Individuals that have low energy requirements for maintenance – standard metabolic rate (SMR) – are expected to have higher hypoxia tolerance, measured as the critical water oxygen saturation threshold (Scrit) below which they cannot ...
Elisa Thoral   +11 more
wiley   +1 more source

Mesohabitat Use by Brown Trout (Salmo trutta) in a Small Groundwater-dominated Stream [PDF]

open access: yes, 2010
Groundwater-dominated streams have particular flow regimes that commonly support populations of trout. Meso- and micro-habitat surveys were carried out on a reach of the river Tern that drains a Triassic sandstone aquifer in the English West Midlands, to
Maddock, Ian   +8 more
core   +1 more source

Genetic analysis of populations of brown trout (Salmo trutta L.) from the Romanian Carpathians

open access: yesAquatic Living Resources, 2019
The Carpathian Mountains are one of the most complex orogenetic areas of Europe, with unique fauna, including the brown trout (Salmo trutta). In this study we performed population genetic analysis of 12 different S.
Popa Gina-Oana   +8 more
doaj   +1 more source

Comparative Studies Are Needed to Contextualize Stranding in Hydropeaking River Systems

open access: yes
Fisheries Management and Ecology, EarlyView.
Raegan Davis   +2 more
wiley   +1 more source

Temperature effects from hydropeaking impair egg and larval development in Danube salmon Hucho hucho and brown trout Salmo trutta

open access: yesJournal of Fish Biology, EarlyView.
Abstract Hydropeaking is considered an important stressor for salmonids and other species in rivers affected by hydropower. In this study, we investigated the in situ effects of hydropeaking on the survival of eggs and larvae of fall spawning brown trout as well as spring spawning Danube salmon.
Julius Gorenz   +3 more
wiley   +1 more source

Studies on the biology of Cyathocephalus truncatus (Pallas, 1781) (Cestoda : Spathebothridea) in its fish and crustacean hosts [PDF]

open access: yes, 1984
During the examination of Salmo gairdneriq Salmo, trutta and Thymallus thymallus from the Driffield section of the river Hull and its tributaries, Eastburn Beck and Driffield Beck,all fish were found to be infected with the cestode Qvathocephalus ...
Okaka, Christopher Ehighaukhuo
core  

Study on some hematological factors of Salmo trutta caspius

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2001
Regarding to measure some hematological factors of Caspian Salmon (Salmo Trutta caspius), 55 immature and 21 mature individuals were studied. The main results were:
H. Jamalzadeh; A. Keyvan; Sh. Jamiliorcid ; Sh. Oryan; A. Saeidi
doaj  

Heat exchange rates between adult sockeye salmon (Oncorhynchus nerka) and the environment

open access: yesJournal of Fish Biology, EarlyView.
Abstract Body temperatures of salmon do not always match the temperatures of their immediate environment. We investigated the relationship between varying ambient water temperatures and body temperatures of adult sockeye salmon Oncorhynchus nerka using Newton's law of cooling and non‐linear mixed models.
Avery Dextrase   +2 more
wiley   +1 more source

Enumerating Atlantic salmon smolt production in River Vindelälven based on habitat availability and parr densities [PDF]

open access: yes, 2010
Habitat mapping was conducted in the main stem of River Vindelälven in the autumn of 2009 along the salmon distribution area. The aim was to estimate the quantity of potential reproduction areas, including spawning and juvenile rearing habitats.
Ågren, Stefan
core   +1 more source

The efficacy of emamectin benzoate against infestations of Lepeophtheirus salmonis on farmed Atlantic salmon (Salmo salar L) in Scotland, 2002-2006 [PDF]

open access: yes, 2008
Infestations of the parasitic copepod Lepeophtheirus salmonis, commonly referred to as sea lice, represent a major challenge to commercial salmon aquaculture. Dependence on a limited number of theraputants to control such infestations has led to concerns
Baillie Mark   +13 more
core   +1 more source

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