Results 11 to 20 of about 5,601 (127)

Phylogeography and population genetic structure of double-crested cormorants (Phalacrocorax auritus) [PDF]

open access: yes
We examined the genetic structure of double-crested cormorants (Phalacrocorax auritus) across their range in the United States and Canada. Sequences of the mitochondrial control region were analyzed for 248 cormorants from 23 breeding sites.
Roby, Daniel D.   +2 more
core   +10 more sources

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

A Low-disturbance Capture Technique for Ground-nesting Double-crested Cormorants (Phalacrocorax auritus)

open access: yes
Capturing breeding adults of colonially nesting species can entail risks of nest failure and even colony abandonment, especially in species that react strongly to human disturbance.
Roby, Daniel D.   +4 more
core   +6 more sources

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

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

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

Effects of Aquaculture on Migration and Movement Patterns of Double-Crested Cormorants

open access: yesHuman-Wildlife Interactions, 2017
We analyzed 10,620 recovery records for double-crested cormorants (Phalacrocorax auritus) banded as nestlings from 1923 to 2006 to determine the population’s age structure, migration routes, dispersal patterns, and the possible influence of the expansion
D. Tommy King   +3 more
doaj   +1 more source

Developing nondestructive techniques for managing conflicts between fisheries and double‐crested cormorant colonies

open access: yesWildlife Society Bulletin, 2015
Double‐crested cormorants (Phalacrocorax auritus) have been identified as the source of significant mortality to juvenile salmonids (Oncorhynchus spp.) in the Columbia River Basin.
Yasuko Suzuki   +4 more
doaj   +1 more source

Management of Double-Crested Cormorants to Improve Sport Fisheries in Michigan: Three Case Studies

open access: yesHuman-Wildlife Interactions, 2017
Impacts of double-crested cormorants (Phalacrocorax auritus) to fisheries have been documented, but evaluation of the process and outcomes of cormorant management to reduce impacts on fisheries is lacking. We provide a synthesis of adaptive management of
Brian S. Dorr   +3 more
doaj   +1 more source

Spatial and temporal composition of the avifauna from the barrier islands of the San Ignacio-Navachiste-Macapule lagoon complex, Sinaloa, Mexico

open access: yesCiencias Marinas, 2010
We analyzed the composition and abundance of the avifuana inhabiting the barrier islands of the San Ignacio-Navachiste- Macapule lagoon system from July 2006 to June 2007. Species richness and relative abundance were determined for the whole complex and
G Sánchez-Bon   +4 more
doaj   +1 more source

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