Results 11 to 20 of about 3,181 (180)

Assessing Biodiversity at Eastern Oyster (<i>Crassostrea virginica</i>) Aquaculture and Reef Sites Utilizing Real-Time Monitoring and Environmental DNA in Rehoboth Bay, Delaware, USA. [PDF]

open access: yesEcol Evol
Eastern oysters (Crassostrea virginica) are a keystone species and vital to the commercial shellfish industry, acting as environmental engineers that enhance biodiversity. To study their impact, real‐time monitoring and Environmental DNA analysis were conducted at various sites in Rehoboth Bay, Delaware and 23 species were identified, with Spot ...
Attarwala T, Parsaeimehr A, Ozbay G.
europepmc   +2 more sources

Epigenetic Responses to Anthropogenic Versus Natural Sources of Oil Exposure Differ in Wild Arctic Seabird Populations. [PDF]

open access: yesEvol Appl
ABSTRACT Anthropogenic pollution can have detrimental effects on organismal physiology, behavior, and fitness, but the underlying genomic mechanisms mediating these effects are not well understood. Epigenetic regulation, such as DNA methylation, has been proposed as a potential mechanism mediating these effects, but currently, there are few studies in ...
Ho WZ   +12 more
europepmc   +2 more sources

Species‐ and origin‐specific susceptibility to bird predation among juvenile salmonids

open access: yesEcosphere, Volume 14, Issue 12, December 2023., 2023
Abstract Juvenile salmonids often experience high mortality rates during migration and bird predation is a common source of mortality. Research suggests that hatchery‐reared salmonids are more prone to predation than wild salmonids, and that Atlantic salmon (Salmo salar) experience lower predation than Sea trout (Salmo trutta), yet telemetry studies ...
Torbjörn Säterberg   +6 more
wiley   +1 more source

Waiting for the right time and tide: The fine‐scale migratory behavior of river herring in two coastal New England streams

open access: yesMarine and Coastal Fisheries, Volume 15, Issue 5, October 2023., 2023
Abstract Objective Alewife Alosa pseudoharengus and Blueback Herring A. aestivalis, collectively referred to as river herring, are anadromous clupeids inhabiting the North American Atlantic coast. Although the seasonal patterns of their spawning migration are well studied and predictable, the fine‐scale movements are still poorly resolved. Methods This
Christopher B. Rillahan, Pingguo He
wiley   +1 more source

Great cormorant (Phalacrocorax carbo sinensis) predation on adult anadromous brown trout (Salmo trutta)

open access: yesEcology of Freshwater Fish, Volume 32, Issue 2, Page 488-495, April 2023., 2023
Abstract The increase in abundance of great cormorants (Phalacrocorax carbo sinensis) over the last decades has caused concern for the sustainability of fish populations. Cormorants are opportunistic piscivorous birds that eat fish from a wide range of species and sizes, in marine, lacustrine and riverine habitats.
Kristi Källo   +3 more
wiley   +1 more source

Cost of regulations on US catfish farms

open access: yesJournal of the World Aquaculture Society, Volume 54, Issue 1, Page 32-53, February 2023., 2023
Abstract Understanding the economic effects of regulations on US aquaculture farms provides insights into which compliance costs create the greatest compliance burden on farms. This can further guide strategies to improve the efficiency of regulatory frameworks and potentially reduce on‐farm compliance costs while maintaining adequate oversight.
Shraddha Hegde   +3 more
wiley   +1 more source

Modeling the Economic Impacts of Double-Crested Cormorant Damage to a Recreational Fishery

open access: yesHuman-Wildlife Interactions, 2017
The double-crested cormorant (Phalacrocorax auritus) has undergone a significant range expansion in the Great Lakes area of the United States since the 1970s, negatively impacting native fish populations and sport fisheries.
Stephanie A. Shwiff   +3 more
doaj   +1 more source

Anticoagulant Rodenticide Contamination of Terrestrial Birds of Prey from Western Canada: Patterns and Trends, 1988–2018

open access: yesEnvironmental Toxicology and Chemistry, Volume 41, Issue 8, Page 1903-1917, August 2022., 2022
Abstract As the dominant means for control of pest rodent populations globally, anticoagulant rodenticides (ARs), particularly the second‐generation compounds (SGARs), have widely contaminated nontarget organisms. We present data on hepatic residues of ARs in 741 raptorial birds found dead or brought into rehabilitation centers in British Columbia ...
John E. Elliott   +6 more
wiley   +1 more source

Data of soil, vegetation and bird species found on double-crested cormorant colonies in the southeastern United States

open access: yesData in Brief, 2019
This data article provides the methods and procedures followed to collect and analyse soil, vegetation and bird data on three different treatment islands in Guntersville Reservoir, Alabama.
Leah Moran Veum   +4 more
doaj   +1 more source

Assessing the validity of the accelerometry technique for estimating the energy expenditure of diving double-crested cormorants Phalacrocorax auritus [PDF]

open access: yes, 2011
Over the past few years, acceleration-data loggers have been used to provide calibrated proxies of energy expenditure: The accelerometry technique. Relationships between rate of oxygen consumption and a derivation of acceleration data termed "overall ...
Butler, P. J.   +7 more
core   +1 more source

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