Results 91 to 100 of about 91,655 (272)

Morphometric and External Injury Characterization of Rainbow Trout (O. mykiss) Used for Stocking in the Alpine River Inn (Bavaria, Germany)

Fisheries Management and Ecology, EarlyView.
ABSTRACT Stocking fish is a common practice in fisheries management, particularly for species of high conservation value or economic importance. Despite its widespread use, systematic evaluation of fish stockings remains scarce. This includes non‐native species such as rainbow trout (Oncorhynchus mykiss), which are intensively stocked into European ...
Christoffer Nagel, David Goldbrunner, Josef Knott, Joachim Pander, Juergen Geist   +4 more
wiley   +1 more source

Electrical phase angle as a new method to measure fish condition [PDF]

, 2009
In this study, phase angle (the ratio of resistance and reactance of tissue to applied electrical current) is presented as a possible new method to measure fish condition.
Cox, Keith W., Heintz, Ron
core  

Evaluating and Advancing the Use of Shore‐Based Observers for Scientific Sampling and Catch Verification in High‐Volume Fisheries

Fisheries Management and Ecology, EarlyView.
ABSTRACT Shore‐based observers are increasingly being used in place of at‐sea observers to monitor and sample commercial fisheries catch. However, few evaluations assess whether these programs meet their stated goals or how to optimize them, and industry data are rarely tested for accuracy despite serving as the foundation for catch accounting. Using a
Christian Gredzens, Andy Kingham, Jason E. Jannot   +2 more
wiley   +1 more source

Effects of the Invasive Round Goby on Swedish Recreational Fishing Values

Fisheries Management and Ecology, EarlyView.
ABSTRACT The round goby, an invasive fish from the Black and Caspian Seas, has spread to Swedish waters, threatening recreational fisheries. We modeled impacts on the future recreational fishery in Sweden using data from a recreational fishing survey, and estimated effects of the round goby on other fish species. Values attached to recreational fishing
Göran Bostedt, Ola Carlén, Rahmat Naddafi, Ann‐Britt Florin   +3 more
wiley   +1 more source

Functional Analysis of the Cyclin E Gene in the Reproductive Development of Rainbow Trout (Oncorhynchus mykiss)

Biology
As a commercially valuable aquaculture species, rainbow trout (Oncorhynchus mykiss) urgently require solutions to growth inhibition associated with reproductive development.
Enhui Liu, Haixia Song, Wei Gu, Gaochao Wang, Peng Fan, Kaibo Ge, Yunchao Sun, Datian Li, Gefeng Xu, Tianqing Huang   +9 more
doaj   +1 more source

Aspects of the washout of salmonid eggs. 4. Effects of a standard mechanical shock, applied at different stage of development, upon survival and development of eggs of brown trout (Salmo trutta L.) [PDF]

, 1985
It is generally accepted by fish culturists that salmonid eggs are sensitive to mechanical shock and that the sensitivity varies with the stage of development of the eggs.
Crisp, D.T., Robson, S.
core  

Using Eye Lens Stable Isotopes to Identify the Rearing Origin of Fall Age‐0 Walleye (Sander vitreus)

Fisheries Management and Ecology, EarlyView.
ABSTRACT Isotope values in fish eye lenses may be useful in differentiating rearing origins. We compared eye lens isotopic values of fall fingerling age‐0 walleye (Sander vitreus) reared in a hatchery pond, a recirculating aquaculture system (RAS), and a natural lake. Using 10 fish per rearing source, we delaminated layers from one eye lens per fish to
Justin M. Sturtz, Benjamin J. Schall, Matthew J. Ward, Cody E. Treft, Steven R. Chipps, Christopher A. Cheek   +5 more
wiley   +1 more source

Collection of ITS2 region reference sequences for freshwater fish in the Japanese archipelago for environmental DNA metabarcoding applications [PDF]

Metabarcoding and Metagenomics
To enhance taxonomic resolution in environmental DNA (eDNA) metabarcoding, we evaluated the utility of the internal transcribed spacer 2 (ITS2) region.
Gen Ito, Daisuke Sasaki, Masayuki K. Sakata, Seigo Kawase, Toshifumi Minamoto, Hiroki Yamanaka   +5 more
doaj   +3 more sources

The relationship between smolt and postsmolt growth for Atlantic salmon (Salmo salar) in the Gulf of St. Lawrence [PDF]

, 2006
The interaction of ocean climate and growth conditions during the postsmolt phase is emerging as the primary hypothesis to explain patterns of adult recruitment for individual stocks and stock complexes of Atlantic salmon (Salmo salar). Friedland et al. (
Clarke, Lora M., Dutil, Jean-Denis, Friedland, Kevin D., Salminen, Matti   +3 more
core  

A novel growth hormone 1 gene-derived probe for Oncorhynchus masou formosanus distinguished from the Oncorhynchus subspecies

Molecular and Cellular Probes, 2009
Traditional mitochondrial 16S rRNA is commonly used in many species identification studies. However, it is difficult to apply to the phylogenetic studies among the Oncorhynchus subspecies, which is a crucial need for management purposes for Oncorhynchus masou formosanus, Taiwan salmon. In this study, we have developed an improved species identification
Hsueh-Wei, Chang, Jing-Iong, Yang, Hsiao-Yun, Huang, Jin-Chywan, Gwo, Ying-Fang, Su, Cheng-Hao, Wen, Yii-Cheng, Chou   +6 more
openaire   +2 more sources