Results 91 to 100 of about 45,385 (267)

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

Who will become dominant? Investigating the roles of individual behaviour, body size, and environmental predictability in brown trout fry hierarchies [PDF]

, 2017
This paper presents a study investigating performance of brown trout fry, with different behavioural characteristics, in environments differing in food predictability.
Berger, David, Johnsson, Jorgen I., Naslund, Joacim   +2 more
core   +2 more sources

Local Angler Knowledge Reveals Declines in Fishing Quality for Black Bass in Lakes of Eastern Ontario

Fisheries Management and Ecology, EarlyView.
ABSTRACT Local ecological knowledge can be useful to assess data‐limited fisheries such as the Ontario Black Bass (Micropterus spp.) recreational fishery. We surveyed local anglers using the Life History Calendar approach to determine if there were perceived changes in fishing quality for Black Bass in eastern Ontario across different time periods. For
Joel Zhang, David P. Philipp, Julie E. Claussen, Cory D. Suski, Vivian M. Nguyen, Nathan Young, Luc LaRochelle, Justin W. Lombardo, Steven J. Cooke   +8 more
wiley   +1 more source

Triploid hybrids between female rainbow trout and male brook trout.

NIPPON SUISAN GAKKAISHI, 1984
The hybrids are obtained by the routine artificial fertilization between a single female rainbow trout Salmo gairdneri and a male brook trout Salvelinus fontinalis. The chromosome spreads from the culture cells of eyed-embryos and fins of the parents and the hybrids.
Takayoshi UEDA, Yoshio OJIMA, Ryozo SATO, Yoshimi FUKUDA   +3 more
openaire   +2 more sources

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

Renaturierung kleiner Lössbäche – ein Beitrag der Ökologischen Landwirtschaft zum Naturschutz [PDF]

, 2013
As a part of the interdisciplinary research project ”Integration of nature protection goals with organic farming: an the example from the Hessian ”state domain” [Staatsdomäne] area Frankenhausen”, different restoration measures have been carried out ...
Braukmann, Ulrich, Haaß, Werner, Rupp, Bastian, Schütte, Achim, Stein, Ulf   +4 more
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

Differences between white and red muscle fibers diameter in three salmon fish species [PDF]

Biotechnology in Animal Husbandry, 2014
Because of skeletal muscle is the main contributor to body weight in most fish, it is probable that the species of the fish is limited by the growth of this tissue.
Karahmet E., Vileš A., Katica Amela, Mlaćo N., Toroman A.   +4 more
doaj  

The effects of water quality on freshwater fish populations - final report [PDF]

, 1990
There is a need to determine quantitative relationships between fishery status and water quality in order to make informed judgements concerning fishery health and the setting of environmental quality standards for fishery protection.
Gulson, J., Mainstone, C.P.
core  

Impact of Environmental Conditions on the Spawning Migration of Sea Trout (Salmo trutta L.) in Two Large, Sub‐Arctic River Systems

Fisheries Management and Ecology, EarlyView.
ABSTRACT The global decline in salmonid stocks has increased the need for knowledge of local adaptations and life history strategies of salmonids. In this study, we used radio‐telemetry tracking data from sea trout populations in two large high‐latitude rivers to model upstream spawning migration speed of trout in response to prevailing environmental ...
L. Lähteenmäki, A. Romakkaniemi, R. Huusko, G. Hellström, P. Orell, J. Erkinaro, A. H. Rikardsen, J. Jensen, M. Snickars   +8 more
wiley   +1 more source