Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Population Estimates of White Whale, Delphinapterus leucas, in James Bay, Eastern Hudson Bay, and Ungava Bay
View through CrossRef
Coastal reconnaissance and systematic aerial surveys of white whales, Delphinapterus leucas, were flown in James Bay, eastern Hudson Bay, and Ungava Bay. In Ungava Bay the numbers of belugas are so low that we are unable to derive population estimates. In James Bay, we estimate 1213 whales with 95% confidence limits of 740–1970 individuals. In eastern Hudson Bay our systematic survey estimates 968 whales (650–1430), with an additional 474 whales counted in traditional areas of coastal concentration. The age structure of whales inshore and offshore appears similar. Our estimates are conservative, since they do not include a correction for animals which might have been underwater as we passed. Since belugas continue to be hunted in Ungava Bay and eastern Hudson Bay, recommendations are made for a conservative management strategy which must soon be implemented.
Canadian Science Publishing
Title: Population Estimates of White Whale, Delphinapterus leucas, in James Bay, Eastern Hudson Bay, and Ungava Bay
Description:
Coastal reconnaissance and systematic aerial surveys of white whales, Delphinapterus leucas, were flown in James Bay, eastern Hudson Bay, and Ungava Bay.
In Ungava Bay the numbers of belugas are so low that we are unable to derive population estimates.
In James Bay, we estimate 1213 whales with 95% confidence limits of 740–1970 individuals.
In eastern Hudson Bay our systematic survey estimates 968 whales (650–1430), with an additional 474 whales counted in traditional areas of coastal concentration.
The age structure of whales inshore and offshore appears similar.
Our estimates are conservative, since they do not include a correction for animals which might have been underwater as we passed.
Since belugas continue to be hunted in Ungava Bay and eastern Hudson Bay, recommendations are made for a conservative management strategy which must soon be implemented.
Related Results
The application of baleen whale genomes in conservation and evolutionary research
The application of baleen whale genomes in conservation and evolutionary research
Baleen whales (Mysticeti) are a clade of highly adapted carnivorous marine mammals that can reach extremely large body sizes and feature characteristic keratinaceous baleen plates ...
Nuisibility of Leucas aspera (Willd.) Link (Lamiaceae) in Pearl Millet Culture [Pennisetum glaucum (L.) R. Br. (Poaceae)] in Eastern South East Niger
Nuisibility of Leucas aspera (Willd.) Link (Lamiaceae) in Pearl Millet Culture [Pennisetum glaucum (L.) R. Br. (Poaceae)] in Eastern South East Niger
Weed competition is a major obstacle to millet cultivation [Pennisetum glaucum (L.) R. Br. (Poaceae)]. The present study was conducted in the south-east of Niger to determine the d...
OVERVIEW OF WHALE RESEARCH IN VIETNAM AND SOME PROTECTION SOLUTIONS
OVERVIEW OF WHALE RESEARCH IN VIETNAM AND SOME PROTECTION SOLUTIONS
There were some researches on whale in Vietnam and Southeast Asia seawaters (Perrin 1994, Smith et al., 1995). Fin whale (Balaenoptera physalus) was firstly recognized in Vietnam ...
Bedrock geology of Hudson Strait and Ungava Bay
Bedrock geology of Hudson Strait and Ungava Bay
This paper summarizes information regarding the bedrock geology underlying Hudson Strait and Ungava Bay interpreted from seismic reflection data together with shallow borehole info...
Hudson River Fishes and their Environment
Hudson River Fishes and their Environment
<em>Abstract.</em>—Our objectives were to examine the distribution and abundance of bay anchovy <em>Anchoa mitchilli </em>eggs and larvae in the Hudson Rive...
The Feasibility of National Inference Under the NSCAW IV L-State Sample Design
The Feasibility of National Inference Under the NSCAW IV L-State Sample Design
The purpose of this Feasibility Analysis Study (FAS) was to evaluate methods for producing valid national estimates under the National Survey of Child and Adolescent Well-being (NS...
Economic valuation of whale shark tourism in Cenderawasih Bay National Park, Papua, Indonesia
Economic valuation of whale shark tourism in Cenderawasih Bay National Park, Papua, Indonesia
Anna Z, Saputra DS. 2017. Economic valuation of whale shark tourism in Cenderawasih Bay National Park, Papua, Indonesia. Biodiversitas 18: 1026-1034. The whale sharks aggregation i...
Satellite tracking of whale sharks from Al Shaheen
Satellite tracking of whale sharks from Al Shaheen
Background The Qatar Whale Shark Research Project is a collaboration of government, industry and academia founded in 2012 to investigate anecdotal reports by Maersk Oil-platform wo...