Consulta: subjectFacets:"Salmo trutta"
Registros recuperados: 8
Data/hora: 16/06/2024 10:38:51

FINDING OF GORDIUS AUSTRINUS DE VILLALOBOS, ZANCA &amp;amp; IBARRA - VIDAL, 2005 (GORDIIDA, NEMATOMORPHA) IN THE STOMACH OF SALMO TRUTTA (SALMONIFORMES) IN PATAGONIA
Provedor de dados: 72
Autores: de Villalobos,Cristina; Ortiz-Sandoval,Juan J; Habit,Evelyn.
Field observations revealed, for the first time, cases of predation on Gordius austrinus by Salmo trutta in Risopatrón Lake, Aysén Region, Chile. Reinvestigation by SEM of the characteristics of the posterior end and of the cuticle of the specimens of horsehair worms collected inside the stomach of brown trout allow us to assign the specimens to the species Gordius austrinus. Also we could show that in some specimens the cuticle of mid body and terminal end presented structural alterations, due to the action of the digestive juices of the fish. This finding implies the extension of the distribution range of G. austrinus.
Tipo: Journal article
Palavras-chave: Nematomorpha; Gordius austrinus; Predation; Salmo trutta; Patagonian Lakes.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382008000100005

Fat deposition and flesh quality in seawater reared, triploid brown trout (Salmo trutta) as affected by dietary fat levels and starvation
Provedor de dados: 5
Autores: Regost, Christelle; Arzel, Jacqueline; Cardinal, Mireille; Laroche, M; Kaushik, Sadasivam.
Three isoproteic (crude protein content: 56%) diets with different fat levels (11%, 20%, and 26%) were fed to triplicate groups of triploid brown trout (initial average body weight of 1.5 kg), reared in seawater. At the end of 3 months of feeding, fish fed the high-fat (HF) diet were split into two groups: a triplicate group of fish received the low-fat diet and another triplicate group was kept unfed for a further 2-month period. Fish initially fed the low-fat diet during the first period were continued to be fed the same diet. Fish fed the medium-fat (MF) diet during period 1 were eliminated for period 2. At the end of each period, comparative whole body analyses, sensory and instrumental (texture and colour) analyses were made on fresh and smoked...
Tipo: Text
Palavras-chave: Texture; Colour; Sensory analyses; Starvation fat deposition; Dietary fat; Salmo trutta.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/publication-377.pdf

Dynamique temporelle de la contribution du repeuplement en stades précoces de truite (Salmo Trutta l.) dans la population en place et dans la pêche sur le doubs franco-suisse.
Provedor de dados: 5
Autores: Champigneulle, A.; Degiorgi, F.; Raymond, J. C.; Cachera, S.
The technique of otoliths fluoromarking has been used to evaluate at a large scale the practices of brown trout (Salmo trutta L.) stocking (540 000 - 570 000/year, most of them as sac fry) for three cohorts 1994-95-96 in a part of the River Doubs having a length of 40 km and fragmented in three zones (upstream, median, downstream) by three hydroelectric dams. For each of the three cohorts, there is a rather high contribution (23 to 60% according to the zone) of the stocked fry to the automnal 0+ standing population. The mass marking of all the stocked fry allowed to show that the dynamics of the contribution of the two components of recruitment (natural or stocked) differed. Indeed, the contribution of stocking decreased with time when measured in the...
Tipo: Text
Palavras-chave: Salmo trutta; Repeuplement; Marquage; Otolithes; Pêche; Salmo trutta; Restocking; Marking; Otoliths; Angling.
Ano: 2002
URL: https://archimer.ifremer.fr/doc/00480/59141/61769.pdf

Constitution of aquacultural stocks: Genetic aspects.
Provedor de dados: 5
Autores: Chevassus, B.
Before reaching of production level justifying an elaborated genetic improvement program, the new aquaculture species deserve a minimal strategy to avoid the consequences of uncontrolled genetic phenomena. Three main aspects will be discussed: initial constitution of the broodstock; maintenance of the broodstock; selection of the broodstock.
Tipo: Text
Palavras-chave: Oncorhynchus keta; Salmo salar; Salmo trutta; Salmonidae; Pisces; Marine molluscs; Marine fish; Sex ratio; Females; Males; Eggs; Larvae; Spawning populations; Aquaculture; Population genetics.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1442.pdf

Aerobic scope explains individual variation in feeding capacity
Provedor de dados: 5
Autores: Auer, Sonya K.; Salin, Karine; Anderson, Graeme J.; Metcalfe, Neil B.
Links between metabolism and components of fitness such as growth, reproduction and survival can depend on food availability. A high standard metabolic rate (SMR; baseline energy expenditure) or aerobic scope (AS; the difference between an individual's maximum and SMR) is often beneficial when food is abundant or easily accessible but can be less important or even disadvantageous when food levels decline. While the mechanisms underlying these context-dependent associations are not well understood, they suggest that individuals with a higher SMR or AS are better able to take advantage of high food abundance. Here we show that juvenile brown trout (Salmo trutta) with a higher AS were able to consume more food per day relative to individuals with a lower AS....
Tipo: Text
Palavras-chave: Energy metabolism; Fitness; Food intake; Maximum metabolic rate; Salmo trutta; Standard metabolic rate.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00414/52505/53324.pdf

Contribution à l'étude de l'adaptation à l'eau de mer chez les Poissons Salmonidés - Détermination de critères de smoltification par mesures de l'activité (Na+K+)-ATPasique des microsomes de la branchie et des hormones thyroïdiennes plasmatiques
Provedor de dados: 5
Autores: Boeuf, Gilles.
Les salmonidés peuvent être classés en deux grands groupes : - ( 1) les espèces ou variétés "sédentaires" d'eau douce, non affectées par un comportement migratoire et passant leur vie entière en systèmes dulçaquicoles ; - (2) les especes ou variétés affectées par de profondes modifications physiologiques, la smoltification, les préadaptant à la vie en milieu océanique et se terminant par la migration active vers la mer. Le présent travail a consisté à effectuer des transferts d'eau douce en eau de mer de diverses espèces de ces deux groupes à différentes étapes de leur cycle de développement et à étudier corrélativement les variations consécutives de leur équilibre hydrominéral et leurs performances ultérieures. Les résultats de cette étude ont permis...
Tipo: Text
Palavras-chave: Smoltification; Osmorégulattion; Salmonidés; Na+K+; ATPase; Pression osmotique; T3 triiodo-thyronine; T4 thyroxine; Croissance; Indicateurs physiologiques; Truite arc-en-ciel; Salmo gairdneri; Truite fario; Salmo trutta; Saumon de fontaine; Salvelinus fontinalis; Saumon coho; Oncorhynchus kisutch; Saumon atlantique; Salmo salar.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00443/55500/57046.pdf

Comparison of brown trout (Salmo trutta) reared in fresh water and sea water to freshwater rainbow trout (Oncorhynchus mykiss): II. Phosphorus balance
Provedor de dados: 5
Autores: Dosdat, Antoine; Metailler, Robert; Desbruyeres, Elisabeth; Huelvan, Christine.
Brown trout and rainbow trout (average weight 100 g) were reared in fresh water at 12 degrees C under the same conditions before transferring brown trout to sea water, in order to compare phosphorus utilisation in both species. Apparent phosphorus availability, orthophosphate excretion and phosphorus accretion in the fish were directly determined. Thus, actual phosphorus mass balance was built. Rainbow trout raised in fresh water had a higher phosphorus retention coefficient (maximum 50 %) than brown trout reared in fresh water (maximum 45 %). Transferring brown trout to sea water induced a reduction in phosphorus retention (maximum 39 %), Orthophosphate excretion, ranging 7-20 mg phosphorus per kg wet weight per day, represented 10-20 % of ingested...
Tipo: Text
Palavras-chave: Oncorhynchus mykiss; Salmo trutta; Excrétion; Digestibilité; Phosphore; Oncorhynchus mykiss; Salmo trutta; Excretion; Digestibility; Phosphorus intake.
Ano: 1998
URL: https://archimer.ifremer.fr/doc/1998/publication-876.pdf

Body composition and sensory quality of wild and farmed brown-trout (Salmo trutta) and of farmed rainbow-trout (Oncorhynchus mykiss)
Provedor de dados: 65
Autores: Antão-Geraldes,Ana Maria; Hungulo,Sílvia Rafael; Pereira,Etelvina; Teixeira,Amílcar; Teixeira,Alfredo; Rodrigues,Sandra.
ABSTRACT:  Body composition (total crude protein, lipid, ash, dry matter and moisture) and fatty acid profiles were compared between wild and farmed brown trout and between farmed rainbow trout. Farmed brown trout contained the highest amount of crude protein (18.39%), whereas farmed rainbow trout contained higher levels of crude lipid (2.35%). Thirty six fatty acids were found, including sixteen saturated fatty acids (SFA), nine monounsaturated fatty acids (MUFA) and eleven polyunsaturated fatty acids (PUFA). The most abundant SFA in all fish were palmitic acid and stearic acid. However, the most abundant fatty acids in all trout samples were MUFA and PUFA. MUFA were the most abundant fatty acid in farmed brown trout because of high abundance of oleic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Salmo trutta; Oncorhynchus mykiss; Body composition; Fatty acid composition; Sensory quality.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000900752