Author: Publisher:
ISBN: 9780660388717
Category : White whale
Languages : en
Pages : 84
Book Description
COSEWIC Assessment and Status Report on the Beluga Whale, Delphinapterus Leucas, Eastern High Arctic - Baffin Bay Population, Cumberland Sound Population, Ungava Bay Population, Western Hudson Bay Population, Eastern Hudson Bay Population and James Bay Population in Canada
Author: Publisher:
ISBN: 9780660388717
Category : White whale
Languages : en
Pages : 84
Book Description
Status Report on the Beluga (white Whale) (eastern High Arctic\Baffin Bay Population), Delphinapterus Leucas, in Canada
Author: Committee on the Status of Endangered Wildlife in CanadaPublisher:
ISBN:
Category : Endangered species
Languages : en
Pages : 57
Book Description
Recovery Potential Assessment of Cumberland Sound, Ungava Bay, Eastern Hudson Bay and St. Lawrence Beluga Populations, Delphinapterus Leucas
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 13
Book Description
Beluga whales (Delphinapterus leucas) occur throughout the Canadian Arctic and in the Saint Lawrence River estuary. The beluga populations of Cumberland Sound, Eastern Hudson Bay, Ungava Bay and Saint Lawrence River Estuary are considered endangered. This document describes the characteristics of a recovered beluga population, discusses considerations in selecting recovery times, and provides information on species biology. It then provides a recovery potential assessment for each of the endangered populations.
A Review of the Status and Harvest of White Whales (Delphinapterus Leucas) in the Cumberland Sound Area, Baffin Island
Author: P. R. RichardPublisher:
ISBN:
Category : Mammals
Languages : en
Pages : 34
Book Description
Status Report on the Belgua (White Whale) (Eastern High Arctic/Baffin Bay Population) Delphinapterus Leucas in Canada
Author: D. W. DoidgePublisher:
ISBN:
Category : Endangered species
Languages : en
Pages : 35
Book Description
Status Report on the Beluga Whale (western Hudson Bay Population), Delphinapterus Leucas, in Canada
Author: P. R. RichardPublisher:
ISBN:
Category : Endangered species
Languages : en
Pages : 19
Book Description
Environmental and Biological Factors Affecting Beluga Whale (Delphinapterus Leucas) Movement and Distribution in Hudson Bay
Author: Kristin WestdalPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Beluga whales (Delphinapterus leucas) are an Arctic cetacean with circumpolar distribution. They are known to have distinct, lengthy and consistent migration paths to and from summer and wintering grounds. The Western Hudson Bay beluga population, the largest summering aggregation in the world, inhabits three main estuaries in the summer season. Little protection is afforded to them here, and little is known of the specific details of their summer distribution and factors affecting that distribution. Using a combination of satellite telemetry, aerial photos, satellite data, and visual observations and historical reports, investigations into factors affecting beluga distribution in Western Hudson Bay were conducted. An examination into beluga age class distribution near the Churchill and Seal River estuaries, using aerial survey imagery, suggested that belugas may not be segregating by age in summer, however the Seal River estuary may be more important from a calf-rearing perspective. Belugas use a greater home range than we would expect, based on historical range data, in the face of predation by their main predator, the killer whale (Orcinus orca). Killer whales are sighted more frequently in Hudson Bay than historically, and results presented here show that ice entrapments, occurring with higher frequency in the future, may impact distribution of beluga as killer whales expand their range and occurrence in Hudson Bay. Finally, an assessment of beluga behaviour in the presence of whale-watching vessels showed that beluga response to vessels varied but the probability of travelling behaviour was significantly greater with distance from vessels; belugas also appear to be spending more time interacting with vessels now, as compared to 15 years ago when there were fewer whale-watching vessels. The results found through this research are useful in informing climate change implications, marine-protected area boundaries, policy and marine spatial planning, and subsistence harvest management.
Ledelsesprincipper for forsvaret
Author: Advances in Research on the Beluga Whale, Delphinapterus Leucas
Author: Thomas G. SmithPublisher:
ISBN:
Category : Nature
Languages : en
Pages : 228
Book Description
Collection of 14 articles representing a cross-section of current research on beluga whales, Delphinapterus leucas, in North American waters.
Proceedings of the Meeting on Recovery Potential Assessment of Cumberland Sound, Ungava Bay, Eastern Hudson Bay and St. Lawrence Beluga Populations, Delphinapterus Leucas
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 85
Book Description
The purpose of the peer review meeting summarized in this report was to proceed with a recovery potential assessment for 4 beluga populations designated as at risk under the Species at Risk Act (SARA). The 4 beluga populations are the Cumberland Sound, the Saint Lawrence Estuary, the Ungava Bay and the Eastern Hudson Bay populations. The 1st part of the meeting focussed on the development of interim descriptions of the biological properties of suitable recovery targets and recovery times that could be applied to beluga populations of concern. The 2nd part of the meeting addressed the recovery potential assessment for each beluga population.