Results 101 to 110 of about 1,502,487 (275)

Quantitative insights into the spatio‐temporal variation of Atlantic salmon (Salmo salar) biomass in a river catchment using eDNA metabarcoding

Journal of Fish Biology, EarlyView.
Abstract Effective species conservation and management requires comprehensive biomonitoring, enhanced by combining traditional and newer methodologies, such as environmental DNA (eDNA) analyses. A seasonal pulse of spawning adult Atlantic salmon (Salmo salar) was detected by normalised eDNA 12S reads from metabarcoding, which facilitated estimation of ...
William Bernard Perry, Nigel Milner, Ifan Bryn Jâms, Mark de Bruyn, Steve J. Ormerod, Kristy Deiner, Holly M. Bik, Gary Carvalho, John Colbourne, Bernard Jack Cosby, Isabelle Durance, Simon Creer   +11 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  

Proportion (SE bars) of the brown trout and rainbow trout fry populations exhibiting signs of M. cerebralis infection.

, 2014
Fry were collected from the upper Colorado River in 2009 (brown trout: N = 277; rainbow trout: N = 29), 2010 (brown trout: N = 64; rainbow trout: N = 41), and 2011 (brown trout: N = 138; rainbow trout: N = 19).
Dana L. Winkelman (561740), Melinda R. Baerwald (561741), George J. Schisler (561742), Eric R. Fetherman (561739)   +3 more
core   +1 more source

Relationship between the environment and the occurrence of invasive pumpkinseed Lepomis gibbosus in lotic and lentic habitats

Journal of Fish Biology, EarlyView.
Abstract The pumpkinseed Lepomis gibbosus is a freshwater fish species native to North America. It has been introduced to Europe, where it is recognized as one of the worst aquatic invaders due to its high adaptability and invasive potential. This study aimed to determine the presence of L. gibbosus in small to medium‐sized water bodies, both lotic and
Ivan Špelić, Marko Glogoški, Marina Piria   +2 more
wiley   +1 more source

Brown Trout

Pen and Ink drawing of a brown ...
Frehner, Greg
core   +1 more source

Points vs. passes: A comparison between electric fishing techniques for sampling fish populations in upland headwater streams

Journal of Fish Biology, EarlyView.
Abstract Point‐abundance sampling by electric fishing (PASE) was compared with single‐pass (DF1) and triple‐pass depletion sampling (DF3) electric fishing on the same reaches of four headwater streams sampled over multiple years in the Ribble catchment, UK. Juvenile salmonids, mostly brown trout Salmo trutta with some Atlantic salmon S.
Reagan H. Pearce, Martin R. Perrow, Mark L. Tomlinson, Kirsty A. Turner   +3 more
wiley   +1 more source

Proliferative Kidney Disease in Sympatric Naturally Reproducing Populations of Rainbow and Brown Trout in Southern Peri‐Alpine Germany

Aquaculture, Fish and Fisheries
The decline of central European salmonid populations is exacerbated by global warming impacts on disease and interspecific competition. In this context, sympatric naturally reproducing populations of rainbow trout Oncorhynchus mykiss and brown trout ...
Albert Ros, Jan Baer, Patrick Bartolin, Alexander Brinker   +3 more
doaj   +1 more source

Spaulding and Ratzler Caught German Brown Trout

, 1974
The German Brown Trout was caught by Scott Spaulding and Joe Ratzler in the Kid\u27s Canal, north of the Asher Merkley property. Scott Spaulding is the son of Mr. and Mrs. C. R. Spaulding. Joe Ratzler is the son of Mr. and Mrs. Joe Ratzler. The trout was

core  

The role of behavioural measures in successful fishway passage during seasonal brown trout (Salmo trutta) migration

Journal of Fish Biology, EarlyView.
Abstract Successfully overcoming lateral barriers in rivers is crucial for longitudinal fish migration and is influenced mainly by fishway design, environmental variability and/or individual behavioural traits. Although behavioural traits are well studied in many contexts, their role in predicting fishway passage success in the wild remains poorly ...
Nikola Kofentová, Pavel Horký, Tereza Valchářová, Ondřej Slavík   +3 more
wiley   +1 more source

Redd Counting for Monitoring Salmonids in Finnish Inland Waters [PDF]

, 2015
During recent years, systematic redd counting has been used as a monitoring method of wild Brown Trout Salmo trutta spawning stocks, both resident and lake-migrating, in the Lake District in Southern Finland. Counting is done by wading and viewing with
Syrjänen, Jukka, Sivonen, Kimmo, Sivonen, Olli   +2 more
core   +1 more source