Results 91 to 100 of about 20,326 (217)

Imagination, Reality, and Reproduction: Comparing Perceptions of Coastal Sea Trout Anglers, Real Catches, and Sea Trout Spawning Activity

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT Sustainable management of recreational fisheries requires balancing angler attitudes and behaviour with fisheries' biological potential. Herein, we investigated the balance in the sea‐run brown trout (Salmo trutta) fishery around the Swedish island of Gotland using data collected through a creel survey, test fishing, and spawning returns to ...
Samuel Blyth   +2 more
wiley   +1 more source

On C*-algebras and K-theory for infinite-dimensional Fredholm Manifolds [PDF]

open access: yesarXiv, 2004
Let M be a smooth Fredholm manifold modeled on a separable infinite-dimensional Euclidean space E with Riemannian metric g. Given an (augmented) Fredholm filtration F of M by finite-dimensional submanifolds (M_n), we associate to the triple (M, g, F) a non-commutative direct limit C*-algebra A(M, g, F) = lim A(M_n) that can play the role of the algebra
arxiv  

Loss of native brown trout diversity in streams of the continental Croatia

open access: yesFrontiers in Environmental Science
Introduction: The genetic diversity of brown trout in the Western Balkans has been disrupted by the introduction of non-native Atlantic phylogenetic lineages and non-native haplotypes of the Danubian phylogenetic lineage.
Tamara Kanjuh   +7 more
doaj   +1 more source

COMPARATIVE RESEARCH ON LOCOMOTOR COMPONENTS OF RHEOTACTIC RESPONSE IN JUVENILE ATLANTIC SALMON (SALMO SALAR L.) AND BROWN TROUT (SALMO TRUTTA L.)

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2017
We experimentally studied the locomotor components of rheotactic response in three age cohorts (0+, 1+, 2+) of Altantic salmon and brown trout parr from, respectively, the Varzuga River main channel and tributary (Kola Peninsula, White Sea drainage basin)
Mikhail Ruch'ev   +3 more
doaj   +1 more source

Future Trends in Angler Behavior Based on a Delphi Study in the Nordic Countries

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT Recreational fisheries are dynamic social‐ecological systems. Identification of anticipated future trends supports the design of policies and management to deliver outcomes for fisheries resources, users, and communities. To this end, we applied a forecasting method (i.e., Delphi survey) to recreational fisheries in five Nordic countries.
Lotte van den Heuvel   +13 more
wiley   +1 more source

Novel Nongenomic Signaling by Glucocorticoid May Involve Changes to Liver Membrane Order in Rainbow Trout [PDF]

open access: yesarXiv, 2017
Stress-induced glucocorticoid elevation is a highly conserved response among vertebrates. This facilitates stress adaptation and the mode of action involves activation of the intracellular glucocorticoid receptor leading to the modulation of target gene expression. However, this genomic effect is slow acting and, therefore, a role for glucocorticoid in
arxiv  

Getting Scarce and Lure Shy: Impacts of Recreational Fishing on Coastal Northern Pike (Esox lucius) Abundance, Size Structure and Vulnerability to Angling

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT Controlled experiments have shown that northern pike (Esox lucius) is able to develop lure avoidance, but whether such patterns exist in the wild is unknown. We assessed the impact of recreational fishing on a natural population of pike in the southern Baltic Sea, from samples of three pairs of partially protected areas (pMPA) and nearby ...
Phillip Roser   +4 more
wiley   +1 more source

Environmental risk assessment of non‐native salmonid escapes from net pens in the Chilean Patagonia

open access: yesReviews in Aquaculture, Volume 15, Issue 1, Page 198-219, January 2023., 2023
Abstract Here, we review extensive information to estimate environmental risks from escaped non‐native salmonids based on the assessments of hazard, sensitivity and exposure of discrete water bodies in Chile. In 2020, the country harvested about 1 million tons salmonids from net pens located along 1500 km of highly biodiverse coastline.
Doris Soto   +9 more
wiley   +1 more source

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