Results 11 to 20 of about 20,326 (217)

Substrate size modifies stream grazer–biofilm interactions in the presence of invertivorous fish

Ecology, Volume 103, Issue 12, December 2022., 2022
Abstract When herbivore abundance is controlled by predators there may be an indirect positive effect on primary producers due to reduced grazing pressure, but the potential of predation refuges to modify such trophic cascades has rarely been studied.
Ricardo J. Albariño, Gerard P. Closs, Christoph D. Matthaei, Colin R. Townsend, Daniel Zamorano   +4 more
wiley   +1 more source

Preparation and characterization of an intelligent film based on fish gelatin and Coleus scutellarioides anthocyanin to monitor the freshness of rainbow trout fish fillet

Food Science &Nutrition, Volume 11, Issue 1, Page 379-389, January 2023., 2023
A pH‐sensitive indicator based on fish gelatin and Coleus scutellarioides anthocyanin extract (CSAE) was prepared and characterized. There was also a significant relationship between the TVB‐N content of fish fillets and the a* index of the film during the 16 hours storage period so that with the increase of TVB‐N values of the fillets during the ...
Fahimeh Hematian, Homa Baghaei, Abdorreza Mohammadi Nafchi, Marzieh Bolandi   +3 more
wiley   +1 more source

Identification of salmon redds using RPV‐based imagery produces comparable estimates to ground counts with high inter‐observer variability

River Research and Applications, Volume 39, Issue 1, Page 35-45, January 2023., 2023
Abstract An integral part of population monitoring within fisheries is ground‐based surveys of fish redds. Remotely piloted vehicles or drones (RPVs) could provide a complementary method but need verification due to a host of methodological differences. To compare methods, we counted summer Chinook redds (Oncorhynchus tshawytscha) (~6 m2 in size) using
Daniel S Auerbach, Alexander K Fremier
wiley   +1 more source

Landscape transcriptomics as a tool for addressing global change effects across diverse species

Molecular Ecology Resources, EarlyView., 2023
Abstract Landscape transcriptomics is an emerging field studying how genome‐wide expression patterns reflect dynamic landscape‐scale environmental drivers, including habitat, weather, climate, and contaminants, and the subsequent effects on organismal function. This field is benefitting from advancing and increasingly accessible molecular technologies,
Jason Keagy, Chloe P. Drummond, Kadeem J. Gilbert, Christina M. Grozinger, Jill Hamilton, Heather M. Hines, Jesse Lasky, Cheryl A. Logan, Ruairidh Sawers, Tyler Wagner   +9 more
wiley   +1 more source

Gendered, embodied knowledge within a Welsh agricultural context and the importance of listening to farmers in the rewilding debate

Area, EarlyView., 2022
This article uses examples from practice‐led‐research to explore the tensions between rewilding and the gendered embodied knowledge of upland farmers in an area of Wales, UK called the Cambrian Mountains. This paper argues that within the context of the polarising ideas of rewilding, sensitivity and the need to listen to the embodied, situated ...
Ffion Jones
wiley   +1 more source

Climate tracking by freshwater fishes suggests that fish diversity in temperate lakes may be increasingly threatened by climate warming

Diversity and Distributions, Volume 29, Issue 2, Page 300-315, February 2023., 2023
Abstract Aim Many freshwater fishes are migrating poleward to more thermally suitable habitats in response to warming climates. In this study, we aimed to identify which freshwater fishes are most sensitive to climatic changes and asked: (i) how fast are lakes warming? (ii) how fast are fishes moving?
Thomas Wu, Mohammad Arshad Imrit, Zahra Movahedinia, Jude Kong, R. Iestyn Woolway, Sapna Sharma   +5 more
wiley   +1 more source

Water quality indicators in high-density cage farming of trout [PDF]

BIO Web of Conferences, 2023
Trout fishing means raising fish in water whose temperature does not exceed +18°C under completely or partially artificial conditions. Today, several fish belonging to the salmon family are bred in cold water fisheries in the world. These are river trout
Alimova Aziza, Kakhramanov Boymakhmat, Safarova Feruza   +2 more
doaj   +1 more source

Resource use of crucian carp along a lake productivity gradient is related to body size, predation risk, and resource competition

Ecology of Freshwater Fish, Volume 32, Issue 1, Page 10-22, January 2023., 2023
Abstract Generalist fish species can feed on a wide resource spectrum and across trophic levels depending on resource availability and trophic interactions. Crucian carp (Carassius carassius) represents a good candidate species to investigate variation in the trophic ecology of generalist fish as it can be found in highly variable fish communities and ...
Ilaria de Meo, Kjartan Østbye, Kimmo K. Kahilainen, Brian Hayden, Marius Magnus, Antonio B. S. Poléo   +5 more
wiley   +1 more source

Behavioural thermoregulation in cold‐water freshwater fish: Innate resilience to climate warming?

Fish and Fisheries, Volume 24, Issue 1, Page 187-195, January 2023., 2023
Abstract Behavioural thermoregulation enables ectotherms to access habitats providing conditions within their temperature optima, especially in periods of extreme thermal conditions, through adjustments to their behaviours that provide a “whole‐body” response to temperature changes.
Fatima Amat‐Trigo, Demetra Andreou, Phillipa K. Gillingham, J. Robert Britton   +3 more
wiley   +1 more source

Genetic structure and relatedness of brown trout (Salmo trutta) populations in the drainage basin of the Ölfusá river, South-Western Iceland [PDF]

PeerJ, 2023
Background Lake Þingvallavatn in Iceland, a part of the river Ölfusá drainage basin, was presumably populated by brown trout soon after it formed at the end of the last Ice Age.
Marcos Lagunas, Arnar Pálsson, Benóný Jónsson, Magnús Jóhannsson, Zophonías O. Jónsson, Sigurður S. Snorrason   +5 more
doaj   +2 more sources