Results 1 to 10 of about 2,830 (222)

Swimming performance of the freshwater neotropical fish: Pimelodus maculatus Lacepède, 1803

open access: yesBrazilian Journal of Biology
The present study used fixed and increasing velocity tests in an experimental apparatus based on Brett's respirometer to examine prolonged and sustained speeds of the "mandi-amarelo", Pimelodus maculatus.
HA. Santos   +3 more
doaj   +1 more source

Interaction between watershed features and climate forcing affects habitat profitability for juvenile salmon

open access: yesEcosphere, 2020
Opportunities for growth and survival of aquatic organisms are spatially and temporally variable as habitat conditions across watersheds respond to interacting climatic, geomorphic, and hydrologic conditions.
Timothy E. Walsworth   +3 more
doaj   +1 more source

Trends in Aquatic Environmental DNA Research in Alaska

open access: yesEcology and Evolution, Volume 16, Issue 7, July 2026.
Environmental DNA (eDNA) analysis is an emerging tool with significant potential to advance biomonitoring, particularly in remote and logistically challenging environments. To evaluate the state of eDNA research in Alaska, we conducted a literature review and a regional survey and results provide the first comprehensive overview of eDNA research in ...
Brandi Kamermans   +6 more
wiley   +1 more source

Salmon Skin Acid-Soluble Collagen Produced by A Simplified Recovery Process: Yield, Compositions, and Molecular Characteristics

open access: yesFishes, 2022
Acid-soluble collagen (ASC) is generally extracted by acid solubilization, followed by precipitation and dialysis. Such a process is typically time consuming and tedious, especially for dialysis.
Krisana Nilsuwan   +4 more
doaj   +1 more source

Estimates of Spawning Stream Contributions to an Imperilled Bull Trout Metapopulation Utilizing Otolith Geochemistry and Redd Counts

open access: yesEcology of Freshwater Fish, Volume 35, Issue 3, July 2026.
ABSTRACT Migratory fish species have experienced substantial declines throughout aquatic habitats, but actions to manage and conserve migratory species require a better understanding of the relative contributions of local populations to the metapopulation.
Samuel L. Bourret   +3 more
wiley   +1 more source

Differentiating salmonid migratory ecotypes through stable isotope analysis of collagen: Archaeological and ecological applications.

open access: yesPLoS ONE, 2020
The ability to distinguish between different migratory behaviours (e.g., anadromy and potamodromy) in fish can provide important insights into the ecology, evolution, and conservation of many aquatic species.
Eric Guiry   +13 more
doaj   +1 more source

Combined Effects of Defatted Hydrolyzed Collagen from Salmon Skin and Vitamin C on Proliferation and Migration of Human Fibroblast Cell

open access: yesFishes, 2022
Skin injury causes fibroblast dysfunction and lowers collagen production. Safe, functional ingredients such as vitamin C (Vit C) and fish hydrolyzed collagen (HC) have been used to alleviate this problem. Defatted HC from salmon (Oncorhynchus nerka) skin
Lalita Chotphruethipong   +6 more
doaj   +1 more source

Worldwide Invasions of Centrarchidae: The Dark Side of the Sunfish Family

open access: yesFish and Fisheries, Volume 27, Issue 4, Page 781-812, July 2026.
ABSTRACT Freshwater fish invasions are major drivers of global ecological change, disrupting native biodiversity and ecosystem functions. However, many invasive fish hold significant socioeconomic value, resulting in conflict over their management. Centrarchidae, which are globally distributed and are important for sportfishing and aquaculture, are now
Neil Angelo Abreo   +19 more
wiley   +1 more source

Opening a can of worms: Archived canned fish fillets reveal 40 years of change in parasite burden for four Alaskan salmon species

open access: yesEcology and Evolution
How has parasitism changed for Alaskan salmon over the past several decades? Parasitological assessments of salmon are inconsistent across time, and though parasite data are sometimes noted when processing fillets for the market, those data are not ...
Natalie Mastick   +5 more
doaj   +1 more source

Spatial and ecological structure of the sockeye salmon population Oncorhynchus nerka of Kuril Lake [PDF]

open access: yesE3S Web of Conferences
This study examines the genetic structure of sockeye salmon populations in Kuril lake basin, focusing on the allelic frequencies of SNP loci that potentially carry an adaptive load. Our results reveal the division of sockeye salmon populations into three
Khrustaleva Anastasia
doaj   +1 more source

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