Results 51 to 60 of about 1,685 (198)

Fatty acid‐based diet estimation method and long‐term monitoring data reveal generalist and selective feeding behaviors in herbivorous cladocerans and copepods

Limnology and Oceanography, Volume 71, Issue 7, July 2026.
Abstract Zooplankton play an essential role in lake ecosystems by linking primary producers to higher trophic levels. While herbivorous cladocerans are well studied, the diets and population dynamics of herbivorous copepods remain less understood. We created fatty acid reference profiles for the calanoid copepod Eudiaptomus gracilis through controlled ...
Jaakko J. Litmanen, Kirsi Kuoppamäki, Sami J. Taipale   +2 more
wiley   +1 more source

Smelt was the likely beneficiary of an antifreeze gene laterally transferred between fishes

BMC Evolutionary Biology, 2012
Background Type II antifreeze protein (AFP) from the rainbow smelt, Osmerus mordax, is a calcium-dependent C-type lectin homolog, similar to the AFPs from herring and sea raven.
Graham Laurie A, Li Jieying, Davidson William S, Davies Peter L   +3 more
doaj   +1 more source

Lipid correction of hydrogen stable isotope ratios in fish

Limnology and Oceanography: Methods, Volume 24, Issue 7, July 2026.
Abstract Lipids are known to affect stable isotope ratio of organisms, especially δ13C values, and simple arithmetic lipid‐correction procedures have been developed based on the carbon to nitrogen ratio (C : N) that is a proxy for lipid content. Equivalent issues will likely arise with the increasing use of hydrogen isotopes in ecology, but as yet no ...
Kang Wang, Mikko Kiljunen, Jos Schilder, Heikki Hämäläinen, Kimmo K. Kahilainen, Roger I. Jones   +5 more
wiley   +1 more source

Distributions of Cisco (Coregonus artedi) in the upper Great Lakes in the mid-twentieth century, when populations were in decline.

PLoS ONE, 2022
The restoration of the once abundant Cisco (Coregonus artedi) is a management interest across the Laurentian Great Lakes. To inform the restoration, we (1) described historical distributions of Cisco and (2) explored whether non-indigenous Rainbow Smelt (
Yu-Chun Kao, Renee E Renauer-Bova, David B Bunnell, Owen T Gorman, Randy L Eshenroder   +4 more
doaj   +1 more source

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

Fish and Fisheries, Volume 27, Issue 4, Page 813-830, July 2026.
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

Modern state of aquatic biological resources of the Amur River basin and directions of their research

Известия ТИНРО, 2020
Current status of aquatic biological resources in the middle and lower parts of the Amur River basin, including Lake Khanka and the Amursky Liman, is assessed. Generally high abundance of the water organisms is noted, but a downward trend is revealed. In
N. V. Kolpakov, D. V. Kotsyuk, V. I. Ostrovsky, N. N. Semenchenko, V. N. Koshelev, A. P. Shmigirilov, E. V. Ostrovskaya, E. I. Barabanshchikov, T. V. Kozlova, S. E. Kulbachny, E. V. Podorozhnyuk, O. V. Vilkina, M. E. Shapovalov   +12 more
doaj   +1 more source

A new acoustic telemetry tag that identifies carrier mortality by monitoring activity level

Methods in Ecology and Evolution, Volume 17, Issue 6, Page 1735-1742, June 2026.
Abstract We present a new acoustic telemetry tag capable of detecting whether its carrier stops moving for long enough to presume the organism has died, and of reporting the time elapsed since movement ceased. The tag uses existing environmental sensor technology together with an algorithm with user‐specifiable thresholds, and importantly, can separate
Karl P. Phillips, David H. Roth, Dale Webber, Richard Sawler, Jeremy Kuehner, Ainsley Hilliard, Mario Theriault, Tommi Linnansaari   +7 more
wiley   +1 more source

Untersuchungen zur chemischen Zusammensetzung und Nematodenbelastung von Stinten (Osmerus eperlanus L.) [PDF]

, 2006
Smelt (Osmerus eperlanus L.) from the river Elbe has a long tradition as local food speciality. It is offered baked or fried every year during spring in many restaurants along the river.
Karl, Horst
core   +1 more source

Groundtruthing of pelagic forage fish detected by hydroacoustics in a whale feeding area using environmental DNA

Environmental DNA, 2020
Conservation of whales, considered as umbrella species in marine environments, requires to be able to understand their relationships with ecosystem components such as prey species, including pelagic fish. However, studying such relationships in nature is
Chloé Suzanne Berger, Bérénice Bougas, Samuel Turgeon, Sophia Ferchiou, Nadia Ménard, Louis Bernatchez   +5 more
doaj   +1 more source

Multi‐Seasonal eDNA Metabarcoding Highlights a Resurgence in Fish Diversity Across a Severely Impacted Estuarine Ecosystem

Aquaculture, Fish and Fisheries, Volume 6, Issue 2, April 2026.
ABSTRACT Aquatic ecosystems have been in an alarming state of decline for decades. In particular, estuarine ecosystems have experienced long‐term declines in fish diversity due to factors such as habitat degradation, pollution and altered hydrology. Monitoring these systems is often limited by the difficulty and cost of conventional survey methods.
Jake M. Jackman, Naiara Guimarães Sales, Chiara Benvenuto, Andrea Drewitt, Andrew Wolfenden, Peter E. Robins, Ilaria Coscia, Allan D. McDevitt   +7 more
wiley   +1 more source