Download or read book Beluga Habitats in the St Lawrence written by R. Michaud and published by . This book was released on 1990 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Distribution and Preliminary Characterization of Beluga Delphinapterus Leucas Habitats in the St Lawrence written by A. Vézina and published by . This book was released on 1990 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Canadian Journal of Zoology written by and published by . This book was released on 1995 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wildlife Review written by and published by . This book was released on 1992 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Atlantic Coast written by Harry Thurston and published by Greystone Books Ltd. This book was released on 2011 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents a look at the northern Atlantic Coast of North America, describing its ecosystems; forest realms; geological structures; the fish, bird, and plant life that flourish there; and the conservation efforts that have been made to preserve it.

Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aquatic Sciences and Fisheries Abstracts written by and published by . This book was released on 1991-03 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government of Canada Publications Quarterly Catalogue written by and published by . This book was released on 1992 with total page 1604 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1993 with total page 1356 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Microlog Canadian Research Index written by and published by . This book was released on 1992 with total page 1322 pages. Available in PDF, EPUB and Kindle. Book excerpt: An indexing, abstracting and document delivery service that covers current Canadian report literature of reference value from government and institutional sources.

Download or read book Information Relevant to the Documentation of Habitat Use by St Lawrence Beluga Delphinapterus Leucas and Quantification of Habitat Quality written by Arnaud Mosnier and published by . This book was released on 2009 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spring Distribution and Habitat Use of Belugas Delphinapterus Leucas in the Eastern Beaufort Sea written by Natalie Claudette Asselin and published by . This book was released on 2011 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: An understanding of the adaptability of belugas (Delphinapterus leucas) to changing ice-conditions is required to interpret and predict possible changes in habitat selection in response to projected loss of sea ice throughout the circumpolar Arctic. Beluga spring distribution in the eastern Beaufort Sea was described by analyzing observations from aerial surveys conducted from 1975 to 1979. Repeated surveys along the Franklin Bay fast-ice edge in June 2008 were used to study the distribution and behaviour of belugas and bowheads. Despite inter-annual variability in ice extent, belugas consistently selected areas with water depths of 200-500 m, heavy ice concentrations (8/10 to 10/10) and seafloor slope [greater than or equal to]0.5 degrees in spring 1975 to 1979. While predator avoidance may partially explain the observed distribution, foraging success likely has more influence on beluga habitat selection in the spring. In ice-covered offshore regions, belugas may be engaged in under-ice and deep water foraging on Arctic cod (Boreogadus saida). In lighter ice years, belugas may expand their distribution and shift shoreward to take advantage of high prey densities along fast-ice edges. Both belugas and bowheads appeared to be feeding along the Franklin Bay ice edge in June 2008. More research is required to examine and compare possible changes in distribution since the late 1970s and to investigate the factors driving the patterns described.

Download or read book Status of Beluga Delphinapterus Leucas in the St Lawrence River Estuary written by Canadian Science Advisory Secretariat and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Exploration of Grouping Characteristics and Spatial Distribution of Beluga Whales Delphinapterus Leucas in the Eastern Beaufort Sea written by Alexandra Mayette and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beluga whales (Delphinapterus leucas) are considered social whales, but like any other cetaceans, the study of social behaviour is challenging to conduct. Due to the wide distribution of the Eastern Beaufort Sea beluga whale population across its summering grounds, little is known about the large-scale grouping behaviour and spatial distribution of groups. The aim of this research is to explore the grouping characteristics and organization of beluga groups, as well as the habitat preference of different social groups in summer. First, we used aerial photographs captured in July 2019 to describe group size, age composition, inter-individual distance, and swimming direction of beluga groups. We compared characteristics between two key summer habitats: the extended offshore of the Beaufort Sea shelf and the inshore of the Mackenzie Estuary. Results showed that group size and inter-individual distance were similar in both habitats. The average distance in a group varied with age composition and the swimming direction varied between the offshore and inshore. Second, we used GPS locations of beluga sightings recorded by visual observers during aerial surveys conducted in July and August 2019. We investigated the distribution of three beluga social group types (individual belugas, groups of adults, and groups with calf) using hierarchical generalized additive models. The sea surface temperature, bathymetry, and slope described best the summer distribution. Areas of high preference were often associated with prey distribution, suggesting foraging as the main driver of habitat preference. We also hypothesized that body size energy requirements contributed to the variation between the group types. This study revealed for the first-time observations of grouping behaviour in the summer habitat of the Eastern Beaufort Sea beluga whales. Although the results do not reflect the extent and complexity of beluga social behaviour, this study now provides an information baseline for this beluga population. We also encourage multidisciplinary research as an opportunity to further collect data and explore other elements of beluga whale sociality.

Download or read book Atlas of Cetacean Distribution in North west European Waters written by James B. Reid and published by . This book was released on 2003 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: An account of the distribution of 28 cetacean species that are known to have occurred in the waters off north-west Europe. Individual chapters cover particular species in detail, spanning identification, behaviour and social organisation, diet and habitat preferences, worldwide distribution and population status.

Download or read book The Zoological Record written by and published by . This book was released on with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Marine Mammals Ashore written by Joseph R. Geraci and published by National Aquarium in Baltimore. This book was released on 2005 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive manual for understanding and carrying out marine mammal rescue activities for stranded seals, manatees, dolphins, whales, or sea otters.