Results 141 to 150 of about 173,631 (338)

The Forgotten Pink Salmon in the Laurentian Great Lakes: An Unexpected Invasion With Insights for Three Oceans

Fish and Fisheries, EarlyView.
ABSTRACT Introductions of species outside their native range, such as pink salmon (Oncorhynchus gorbuscha) in the Laurentian Great Lakes, can serve as unplanned experiments that provide new insights into ecological adaptation. We synthesize available information on the understudied Great Lakes pink salmon invasion and highlight how this case can inform
Joseph A. Langan, Peter J. Alsip, Hazem U. Abdelhady, Charles R. Bronte, Cory A. Goldsworthy, Matthew S. Kornis, Krista B. Oke, Eva B. Thorstad, Benjamin A. Turschak   +8 more
wiley   +1 more source

Zooplankton of the Zámecký rybník pond

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2008
Qualitative and quantitative composition of zooplankton was studied on the Zámecký rybník pond. Altogether 73 taxa of zooplankton were determined. The values od zooplankton density ranged between 23–2594 ind.m−2.
Ivo Sukop
doaj   +1 more source

Advancing Ecological Understanding and Sustainable Management of Small Pelagic Fish

Fish and Fisheries, EarlyView.
ABSTRACT Small pelagic fish (SPF) are critical to the trophodynamic structure and function of marine systems and support some of the most valuable and socially important fisheries worldwide. Their “boom and bust” population dynamics, shifts in distribution, and importance as forage resources for other fish stocks place unique challenges to assessing ...
Myron A. Peck, Ignacio A. Catalán, Ryan R. Rykaczewski, Akinori Takasuka, Susana Garrido, Rebecca G. Asch, Matthew R. Baker, Noelle M. Bowlin, Jennifer Boldt, Richard D. Brodeur, Cecilie Hansen, Salvador E. Lluch‐Cota, Martin Huret, Francis Juanes, Isaac C. Kaplan, Stefan Koenigstein, Marta Moyano, Rubén Rodríguez‐Sánchez, Christopher N. Rooper, Dongwha Sohn, Motomitsu Takahashi, Desiree Tommasi, Robert P. Wildermuth   +22 more
wiley   +1 more source

Variations in the structural and functional diversity of zooplankton over vertical and horizontal environmental gradients en route to the Arctic Ocean through the Fram Strait.

PLoS ONE, 2017
A multi-scale approach was used to evaluate which spatial gradient of environmental variability is the most important in structuring zooplankton diversity in the West Spitsbergen Current (WSC).
Marta Gluchowska, Emilia Trudnowska, Ilona Goszczko, Anna Maria Kubiszyn, Katarzyna Blachowiak-Samolyk, Waldemar Walczowski, Slawomir Kwasniewski   +6 more
doaj   +1 more source

Controls on zooplankton assemblages in the northeastern Chukchi Sea [PDF]

, 2016
Thesis (Ph.D.) University of Alaska Fairbanks, 2016The Chukchi Sea is a broad and shallow marginal sea of the western Arctic Ocean that lies between the Bering Sea and the deeper Amerasian basin.
Questel, Jennifer
core  

Deep Dark Futures: Foresighting Human Impacts on Mesopelagic Ecosystem Services

Fish and Fisheries, EarlyView.
This study uses foresighting to explore four plausible future scenarios of human activity affecting mesopelagic ecosystem services; provisioning, regulating, supporting and cultural. Using participatory scenario development, qualitative network modelling and indicator design, we assess systemic risks and early warning signals linked to harvest, climate
Ben Scoulding, Alistair J. Hobday, Rowan Trebilco, Heidi Pethybridge, Ingrid van Putten, Katherine Baker, Karen Evans, David Green, Eriko Hoshino, Haris Kunnath, Clothilde Langlais, Tim P. Lynch, Javier Porobic, Tyler Rohr, Elizabeth H. Shadwick, Caroline A. Sutton, Jodie Van de Kamp, Briannyn Woods, Bowen Zhang   +18 more
wiley   +1 more source

Factors Influencing the Stocking of Juvenile Pikeperch (Sander lucioperca)

Fisheries Management and Ecology, EarlyView.
ABSTRACT Predator species of fish play crucial roles in ecosystem balance through top‐down control, a mechanism frequently exploited in biomanipulation to stock predator species. Juvenile pikeperch (Sander lucioperca) were stocked (n = 52,887) in spring 2023 and 2024 and autumn 2023 to compare stocking efficiency between Recirculation Aquaculture ...
Michaela Holubová, Petr Blabolil, Martin Čech, Vladislav Draštík, Jaroslava Frouzová, Luboš Kočvara, Jan Kubečka, Václav Kučera, Oleksandr Malinovskyi, Milan Muška, Marie Prchalová, Rubén Rabaneda‐Bueno, Pavel Rychtecký, Milan Říha, Zuzana Sajdlová, Michal Tušer, Mojmír Vašek, Tomáš Jůza   +17 more
wiley   +1 more source

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

Disentangling the Drivers of a Piscivorous Intra‐Annual Cohort and the Contributions of Three Cohorts to Early‐Year Class Strength in Pikeperch (Sander lucioperca)

Fisheries Management and Ecology, EarlyView.
ABSTRACT Using pikeperch (Sander lucioperca) as a model species, we investigated the factors influencing fluctuations in the abundance of piscivorous intra‐annual cohorts and assessed the role of three distinct cohorts: extremely small (ES), ordinary (or mid‐sized) fingerlings, and piscivorous in shaping year‐class strength.
Million Tesfaye, Tomáš Jůza, Marek Šmejkal, Katerina Soukalová, Daniel Bartoň, Petr Blabolil, Martin Čech, Josef Hejzlar, Marie Prchalová, Milan Muška, Michal Tušer, Luboš Kočvara, Zuzana Sajdlová, Vladislav Draštík, Carlos Martinez, Karlos Ribeiro de Moraes, Milan Říha, Mojmír Vašek, Radka Symonová, Marek Brabec, Jan Kubečka, Allan T. Souza   +21 more
wiley   +1 more source

The Effects of Nutrient Additions on Kokanee in Dworshak Reservoir, Idaho

Fisheries Management and Ecology, EarlyView.
ABSTRACT We investigated the effects of whole reservoir nitrogen (N) addition on kokanee growth in Dworshak Reservoir, Idaho. We hypothesized that N addition would improve the growth of kokanee (Oncorhynchus nerka) at a given level of abundance by increasing the availability of Daphnia, an important food source.
Sean M. Wilson, Matthew P. Corsi, Eric J. Stark, Eli A. Felts, Andrew M. Dux, Ryan S. Hardy   +5 more
wiley   +1 more source