Results 91 to 100 of about 141,246 (258)

Plasticity in the reproductive biology of Yellowstone cutthroat trout Oncorhynchus virginalis bouvieri in Yellowstone Lake following lake trout Salvelinus namaycush invasion

Journal of Fish Biology, EarlyView.
Abstract Yellowstone cutthroat trout Oncorhynchus virginalis bouvieri in Yellowstone Lake are the focus of intensive conservation efforts due to the threat of predation by invasive lake trout Salvelinus namaycush. Suppression gillnetting has reduced the abundance of predatory lake trout, and the Yellowstone cutthroat trout population is recovering ...
Michelle A. Briggs, Molly A. H. Webb, Christopher S. Guy, Todd M. Koel   +3 more
wiley   +1 more source

Reproductive parameters of wild and hatchery‐reared sea trout (Salmo trutta m. trutta L.) females from the Łeba River (southern Baltic Sea)

Journal of Fish Biology, EarlyView.
Abstract Sea trout Salmo trutta m. trutta L. has high socioeconomic and ecological importance in the Atlantic region; therefore, stocking hatchery‐reared fish is widely practiced for stock enhancement and recovery of wild populations. In this study, fecundity of wild and stocked hatchery‐reared sea trout sampled from the Łeba River (southern Baltic Sea
Adam M. Lejk, Piotr Hliwa
wiley   +1 more source

Return migration to fresh water and overwintering locations used by sympatric anadromous populations of Arctic char (Salvelinus alpinus) and Dolly Varden (Salvelinus malma malma)

Journal of Fish Biology, EarlyView.
Abstract Anadromous Arctic char (Salvelinus alpinus) and northern form Dolly Varden (Salvelinus malma malma) are highly valued by Indigenous communities in northern Canada. Rapid, ongoing environmental changes are affecting populations of both of these iteroparous species, and understanding variability in life‐history tactics is essential for ...
Rosie Smith, Eric Hitkolok, Amanda Dumond, Simon DePasquale, Hannah Thibault, Spencer Weinstein, Paul Craig, Tracey Loewen, Heidi Swanson   +8 more
wiley   +1 more source

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

Frontiers 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, Ana Marić, Dubravka Škraba Jurlina, Predrag Simonović, Ivan Špelić, Marina Piria, Marina Piria, Ivana Maguire   +7 more
doaj   +1 more source

Restoration of native Mediterranean brown trout Salmo cettii Rafinesque, 1810 (Actinopterygii: Salmonidae) populations using an electric barrier as a mitigation tool

The European Zoological Journal, 2018
This study assessed the effectiveness of a novel conservation strategy for the native brown trout populations in Sardinia (Italy). The conservation measures included: (i) installation of an electric fish barrier; (ii) removal of all the resident ...
A. Sabatini, C. Podda, G. Frau, M. V. Cani, A. Musu, M. Serra, F. Palmas   +6 more
doaj   +1 more source

A decade of studies at Loch Fleet, Galloway (Scotland): A catchment liming project and restoration of a brown trout fishery [PDF]

, 1995
Loch Fleet is a small upland lake in the hills of Galloway in southwest Scotland. In the 1970s the waters of the loch became more acidic and a brown trout fishery failed. This account summarises an experimental project, the "Loch Fleet Project" initiated
Dalziel, Tom, Howells, Gwyneth
core  

Surgical tagging of Atlantic mackerel (Scomber scombrus): electroanaesthesia and survival in captivity and the field

Journal of Fish Biology, EarlyView.
Abstract Electroanaesthesia using electric fish handling gloves induced rapid and reversible sedation of Atlantic mackerel (Scomber scombrus) during surgical tagging without observable adverse effects on behaviour or tag retention. In the laboratory, survival analyses revealed that longer handling times and smaller body sizes significantly reduced ...
Caliyena R. Brown, Morgan L. Piczak, Elisabeth Van Beveren, John Batt, Robert J. Lennox   +4 more
wiley   +1 more source

The phylogenetic position of Brown trout (Salmo trutta L. 1758) in the Jajrud River using D-Loop sequence

یافته‌های نوین در علوم زیستی, 2016
In this study phylogenetic relationship of the Jajrud River Brown trout Salmo trutta L. 1758 in the Namak Lake basin was analyzed using complete D-Loop sequence of the mitochondrial genome, compared to other Iranian populations of the species.
Qaffar Khosravani asl, Iraj Hashemzade Sagharloo, Esmaeel Pirali, Asghar Abdoli   +3 more
doaj  

The lake sink in Atlantic salmon smolt downstream migration

Journal of Fish Biology, EarlyView.
Abstract The objective was to estimate the movements and survival of Atlantic salmon smolts migrating downstream through a river–lake system consisting of two large, interconnected lakes (areas 58.2 and 13.2 km2, minimum crossing distance 29 and 16 km).
Jan Heggenes, Eivind Schartum, Torgeir Havn, Finn Økland   +3 more
wiley   +1 more source

Population dynamics and the influence of hydrology on nonnative rainbow trout in a perialpine limestone stream

Global Ecology and Conservation
Rainbow trout, originally from Pacific coast catchments (North America), have been distributed extensively on a global scale for consumptive and recreational fishing.
Kurt Pinter, Marlene Kollmann, Erwin Lautsch, Günther Unfer   +3 more
doaj   +1 more source