Economic Impact of Double-Crested Cormorant, Phalacrocorax auritus, Depredation on Channel Catfish, Ictalurus punctatus, Aquaculture in Mississippi, USA
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چکیده
منابع مشابه
Influence of Simulated Double-crested Cormorant, Phalacrocorax auritus, Predation on Multiple-batch Production of Channel Catfish,Ictalurus punctatus
The double-crested cormorant, Phalacrocorax auritus, is considered the primary depredating bird species on commercially produced channel catfish, Ictalurus punctatus, in the southeastern USA. We simulated different levels of cormorant predation on losses at harvest and economic effects on channel catfish production in a multiple-batch cropping system. We observed significant (P< 0.05) declines ...
متن کاملIsotopic Discrimination in the Double-Crested Cormorant (Phalacrocorax auritus)
The diet-tissue discrimination factor is the amount by which a consumer's tissue varies isotopically from its diet, and is therefore a key element in models that use stable isotopes to estimate diet composition. In this study we measured discrimination factors in blood (whole blood, red blood cells and plasma), liver, muscle and feathers of Double-crested Cormorants (Phalacrocorax auritus) for ...
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Estimating the catfish aquaculture production losses that can be attributed to double-crested cormorants (Phalacrocorax auritus) has proved problematic because knowledge of the distribution of cormorants on catfish aquaculture is lacking. We evaluated use versus availability of various production pond types and landscape-scale factors affecting the distribution of cormorants on channel catfish ...
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We used a two-compartment, clearance volume-based model to examine rubidium and cesium Ž . pharmacokinetics in channel catfish Ictalurus punctatus after intravascular administration. We compared the apparent volumes of distribution in the central and peripheral compartments and the intercompartmental and whole-body clearances of both metals at 20.0 8C and 27.5 8C. Biological half-times of Rb we...
متن کاملIdentification of 24 polymorphic microsatellite markers for the double-crested cormorant (Phalacrocorax auritus).
Twenty-four polymorphic microsatellite markers were developed for the double-crested cormorant (Phalacrocorax auritus). The number of alleles ranged from two to 13 and observed heterozygosities ranged from 0.032 to 0.871. The use of these loci should enable researchers and biologists to learn more about the population structure and ecology of this species.
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ژورنال
عنوان ژورنال: Journal of the World Aquaculture Society
سال: 2012
ISSN: 0893-8849
DOI: 10.1111/j.1749-7345.2012.00586.x