Results 91 to 100 of about 20,326 (217)
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]
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
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
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
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]
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
The Relation Between Growth and Food Consumption in the Brown Trout (Salmo Trutta) [PDF]
F. T. K. Pentelow
openalex +1 more source
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
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
The Effect of Sewage on Brown Trout (Salmo Trutta L.) [PDF]
John P. Longwell, F. T. K. Pentelow
openalex +1 more source