Download or read book The Belugas Delphinapterus Leucas of Northern Quebec Distribution Abundance Stock Identity Catch History and Management written by Canada. Department of Fisheries and Oceans. Western Region and published by . This book was released on 1982 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Belugas Delphinapterus Leucas of Northern Quebec written by M. Allard and published by . This book was released on 1982 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Northern Quebec Nunavik Beluga Delphinapterus Leucas written by and published by . This book was released on 2002 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stock Discrimination of Belugas Delphinapterus Leucas Hunted in Eastern Hudson Bay Northern Qu bec Hudson Strait and Sanikiluaq Belcher Islands Using Mitochondrial DNA and 15 Nuclear Microsatellite Loci written by and published by . This book was released on 2001 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report examines the possibility that beluga of eastern Hudson Bay (EHB) were hunted by communities outside the EHB arc. It presents results of molecular genetic studies of tissue samples collected from beluga from the Belcher Islands area, EHB communities, north-west Quebec, and Hudson Strait. Individuals & sample populations were characterized with a mitochondrial DNA d-loop sequence of 324 base pairs which described 32 different halotypes (maternally inherited) and with 15 nuclear microsatellite loci (inherited from both parents).
Download or read book Stock Assessment of Northern Quebec Nunavik Beluga Delphinapterus Leucas written by Canada. Department of Fisheries and Oceans. Québec Region and published by . This book was released on 2005 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies of White Whales Delphinapterus Leucas and Narwhals Monodon Monoceros in Greenland and Adjacent Waters written by and published by Museum Tusculanum Press. This book was released on 1994 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Age and Stage Based Analysis of the Population Dynamics of Beluga Whales Delphinapterus Leucas with Particular Reference to the Northern Quebec Population written by David William Doidge and published by . This book was released on 1990 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The age-length data used to evaluate errors associated with stage classification indicate that belugas in Hudson Bay are smaller than those elsewhere, but not to the large degree previously reported. Beluga in estuaries are represented by all size classes. Examination of the integumentary heat loss show beluga and narwhal, Monodon monoceros, to be equally insulated, but only belugas frequent warmer estuarine waters." --
Download or read book Seasonal Movements and Abundance of Beluga in Northern Quebec Nunavik Based on Weekly Sightings Information written by Michael O. Hammill and published by . This book was released on 2009 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Department of Fisheries and Oceans maintains a harvest reporting system for Beluga whales (Delphinapterus leucas) in the 14 villages located in northern Quebec (Nunavik). Data on numbers of animals reported struck, struck and lost and reported observed are recorded on a weekly basis. The reports on numbers of beluga reported observed by hunters were examined to determine if they could be used to examine seasonal movement patterns and to determine if any unusual trends had been observed in recent years. Data collected between 2001 and 2008 are examined here, whereas data from 1998 and 1999 were discovered too late to be included.
Download or read book Advances in Research on the Beluga Whale Delphinapterus Leucas written by Thomas G. Smith and published by . This book was released on 1990 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Collection of 14 articles representing a cross-section of current research on beluga whales, Delphinapterus leucas, in North American waters.
Download or read book Beluga Whales written by Anthony R. Martin and published by . This book was released on 2002 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dr Anthony Martin is a biologist and in this book he explores what we know about the beluga or white whale, and relates to the reader what research is currently being carried out on this species.
Download or read book For the Future of the Beluga written by Jacques Prescott and published by Sillery, Québec : Presses de l'Université du Québec. This book was released on 1990 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Le 29 septembre 1988, plus de 300 personnes envahissaient l'hôtel Tadoussac. Parmi ces participants se trouvaient quelque 30 chercheurs invités à faire le point sur l'état de la population des bélugas du Saint-Laurent, sa distribution dans l'estuaire, l'état de son habitat naturel et les impacts de la pollution de l'eau sur la santé de ces mammifères marins."--Page xvii.
Download or read book Belugas in the North Atlantic and the Russian Arctic written by Mads-Peter Heide-Jørgensen and published by . This book was released on 2002 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book History of White Whale Delphinapterus Leucas Exploitation in Eastern Hudson Bay and James Bay written by Randall R. Reeves and published by Fisheries and Oceans, Information and Publications Branch. This book was released on 1987 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: One objective of the present paper was to provide a more complete account of the catch history and to use all available data in making a new estimate of initial population size. A second objective relates to ongoing field work in the Eastmain region by other researchers. Census surveys, observations of behavior, and biological sampling might be accomplished and interpreted more efficiently if the following historical facts were known: (a) which river mouths were traditionally visited by white whales; (b) approximate dates of arrival at and departure from the river mouths by the whales; (c) routes followed and pattern of movement between rivers; (d) relative age- and sex-compositions of populations or parts of populations using the different river mouths; (e) year-to-year or within-year changes in "condition" of whales (e.g. gauged by their reported oil yield or by the qualitative comments of those who caught and flensed them); and (f) observations of social structure and behavior of whales, as observed and noted by early visitors to the Eastmain coast.
Download or read book The Anatomy of the Northern Beluga beluga Catodon Gray Delphinapterus Leucas Pallus Compared with that of Other Whales written by Morrison Watson and published by . This book was released on 1879 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beluga Whale Delphinapterus Leucas written by and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the mid-2000s, the population has shown evidence of major demographic changes including increased neonate mortality and a decline in the proportion of young individuals in the population. [...] Reproductive output appears to have changed recently, with a decline in the proportion of immature individuals and other major changes in demography of the population since the late 1990s. [...] Special Significance The Beluga is the only species of its genus and is one of only two species in the family Monodontidae, the other being the Narwhal. [...] Beluga summer distribution in the SLE is centred at the outflow of the Saguenay River, between Battures aux Loups Marins and Rivière Portneuf on the north shore of the SLE, Rimouski on the south shore of the SLE, and to Baie-Sainte-Marguerite in the Saguenay River (Figure 4). [...] Habitat alteration resulting from the damming of the Manicouagan and Outardes Rivers in the 1960s, in combination with over-hunting in this area, may be responsible for the disappearance of Belugas from that part of their historical range (Vladykov 1944; Pippard and Malcolm 1978; Sergeant and Brodie 1975; Laurin 1982; Reeves and Mitchell 1984; Pippard 1985a; Michaud et al.
Download or read book Fishery Bulletin written by and published by . This book was released on 2001 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Movements of Beluga Tagged at the Nastapoka River written by D. W. Doidge and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Beluga whales (Delphinapterus leucas) occupy Hudson Bay in summer where they are an important source of country-food for the Inuit. Two stocks have been identified; the western stock is estimated to contain at least 23,000 animals, approximately 15 times larger than the eastern stock (Richard et al 1990). The two stocks are genetically distinct (Brown et al 1997). The eastern stock has been designated by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) as threatened and a quota system has been applied to the Inuit subsistence harvest on the northern Quebec coast. The western stock has no quota since harvest levels are lower than the estimated sustainable yield. Aerial surveys in 1985 (Smith and Hammill 1986) and 1993 (DFO unpublished) indicate the summer distribution of beluga whales extends between the Quebec coast (Nunavik) and Sanikiluaq (Belcher Islands). Also, satellite tags, which transmitted for a short time in 1993, showed one whale, tagged at the Little Whale River on the Quebec coast, frequented areas offshore as far as the Belchers. These data would indicate a common stock between Nunavik and Sanikiluaq. However, genetic analysis indicates whales harvested in Sanikiluaq are more similar genetically to western Hudson beluga than those caught along the eastern Hudson Bay coast, just 100 km distant. The conflicting scientific information (genetic make-up vs distribution data) has led some Nunavik Inuit to question the scientific validity of the existing co-management regime and quota system. The number of satellite tags deployed in 1993 (DFO unpublished data) has not been sufficient to clearly resolve the movements of whales that frequent the Quebec coast. The hunters' association of the Nunavik Inuit (HFTA) requested that the issue of stock identity be resolved. A resolution supporting the satellite tagging project was passed at the HFTA's annual general meeting in 1998. With support from World Wildlife Fund Canada, Fisheries and Oceans and Makivik Corporation, three satellite tags were deployed on belugas at the Nastapoka River in 1999. ... In August, the tagged animals frequented the offshore between the mainland coast and the Belcher Islands, an area indicated to be the summer distribution of belugas previously by aerial surveys. While the single, gray animal ventured to the Belcher Islands, the time spent in that vicinity accounted for a small proportion of the time it was tracked (ca. 8%). The two adults with calves did not venture as far to the west. The sample size of tagged animals is too small to estimate the probability of animals that occupy the Nastapoka being caught at the Belchers. However, analysis of the DNA of belugas harvested at the Belchers indicates that the number having the eastern Hudson Bay haplotype is low. The degree of site-tenacity and estuarine use appears to be variable. Other studies demonstrate that belugas will return to the locality of tagging (Orr et al 1998, DFO unpublished data). However, the three whales tagged by us, did not appear to re-enter Nastapoka Estuary. Radio transmitters are becoming more dependable enabling data to be gathered over a longer period of time. Two tags transmitted long enough to indicate that whales remain in the Hudson Bay Area until early October. The start of a northward migration, presumably to over-wintering grounds in Hudson Strait, was documented for one whale until its transmitter sopped signaling near Puvirnituq in late October. A large quantity of data has been received from these satellite tags. The inshore areas of beluga habitat, such as estuaries, are well documented from traditional knowledge and scientific studies. The data from satellite tagged whales show areas, offshore of the Nastapoka Islands, where the whales have remained for several days. The bathymetry of these locations will be examined in relation to the whales' diving activities to better understand habitat-use of beluga whales in eastern Hudson Bay. This analysis is scheduled for Winter 2000-01. The method of using surgical pins to attach the transmitter to the whale's back remains invasive, but no alternative has yet been found. The number of whales tagged has been kept to a minimum. A thorough review of the dive data will determine if a realistic correction factor to account for submerged whales, not counted during aerial surveys can be estimated, or whether further tagging is needed"--ASTIS [online] database.
