Download or read book Modelling Grey Seal Abundance in Canadian Waters written by Michael O. Hammill and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Grey Seal Abundance in Canadian Waters and Harvest Advice written by Michael O. Hammill and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Grey Seal Population Trends in Canadian Waters 1960 2016 and Harvest Advice written by M.O. Hammill and published by . This book was released on 2017 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Grey Seal Population Trends in Canadian Waters 1960 2014 written by Michael O. Hammill and published by . This book was released on 2014 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fishery Ecosystem Dynamics written by Michael J. Fogarty and published by Oxford University Press, USA. This book was released on 2020 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will illuminate the deep and often underappreciated connections between basic ecology and fishery science, and will explore the implications of these linkages in crafting management strategies for the 21st century.

Download or read book The grey seal in eastern Canadian waters written by A.W. MANSFIELD and published by . This book was released on 1966 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Grey Seal Halichoerus Grypus Fabricius in Eastern Canadian Waters written by Arthur Walter Mansfield and published by . This book was released on 1965 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Historical Grey Seal Abundance and Changes in the Abundance of Grey Seal Predators in the Northwest Atlantic written by W. D. Bowen and published by . This book was released on 2011 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Grey Seal in Eastern Canada written by A. W. Mansfield and published by . This book was released on 1977 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: General biology of Halichoerus grypus based on censuses, marking and collections made in all localities in Maritime Provinces and Quebec where they are known to occur regularly, 1968-70.

Download or read book Marine Mammal Research written by John Elliott Reynolds and published by JHU Press. This book was released on 2005-11-18 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine mammal conservation presents a number of challenges for scientists. This work presents an argument about how science, if conducted properly, can provide insights needed to minimise crisis management and implement more anticipatory action.

Download or read book Seal Abundance and Distribution written by Roma Banga and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grey seal abundance is largely increasing across the assessed area. Within Arctic Waters, both Icelandic grey seals and harbour seals are declining. Harbour seals abundance trends are mixed within the Greater North Sea. Southern Celtic Seas data were limited, but trends are generally increasing. Distribution appears generally stable for both species.

Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2013 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sources of Variability in Aerial Survey Counts of Harbour Seals on Haul out Sites in the Bay of Fundy written by G. Mark Fowler and published by Dartmouth, N.S. : Fisheries and Ocean Canada. This book was released on 2005 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiple aerial censuses were conducted of a major harbour seal (Phoca vitulina) haulout area off Grand Manan, New Brunswick, Canada, during the molting period to quantify sources of variability in aerial survey counts. Counts increased and decreased with local time, with peak counts between 1200-1600 EST. Low tide may have functioned as a delimiter to this relationship by degree of emergence of haul-out sites, assuming competition for space between seals, but the apparent effect could be an alias for cumulative survey disturbance or progression through the molt period. Hot days appeared to depress counts. Standard deviations of counts made between 1200-1600, computed independently for each day to negate tide or disturbance effects, ranged from 3.7 to 7.5% of the mean. We estimated the proportion of seals in the water during peak haul-out at 20% of the opulation. Photographic counts usually exceeded visual counts, but the difference extended to counts of small groups of animals unlikely to have been visually miscounted. The results (visual counts) of the aerial census study were used to derive correction factors for seals in the water and time of day. These correction factors were applied to earlier estimates of total Bay of Fundy area harbour seal abundance derived from aerial surveys in 1986 and 1992 (adjusted abundances of 2 362 and 4 218 harbour seals respectively). The earlier surveys were also used to adjust the 1995 study to provide a total abundance estimate for the Bay of Fundy (5446 harbour seals). A growth curve fitted to the three point estimates for 1986, 1992 and 1995 suggested abundance increased at a rate of 9.3% per year

Download or read book Harbour Seal Phoca Vitulina and Grey Seal Halichoerus Grypus Abundance in the St Lawrence Estuary written by V. Lesage and published by Mont-Joli, Québec : Fisheries and Oceans, Canada. This book was released on 1995 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Seals and Sealing in Canada written by Royal Commission on Seals and the Sealing Industry in Canada and published by Royal Commission on Seals and the Sealing Industry in Canada. This book was released on 1986 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report of a Royal Commission, chaired by Mr. Justice Albert H. Malouf, which examined and made recommendations on all aspects of seals and sealing in Canada, including the social, cultural, ethical, scientific, economic, resource management, and international implications.

Download or read book Gray Seals in Nantucket Sound Massachusetts Winter and Spring 1994 written by Valerie Rough and published by . This book was released on 1995 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Marine Mammal Ecology and Conservation written by Ian L. Boyd and published by Oxford University Press. This book was released on 2010-08-12 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: Much of our knowledge about marine mammals is derived from a long-term and dedicated research effort that is evolving rapidly due to the introduction and invention of new methods.This book reflects the inventiveness of marine researchers as they try to find ways around the problems presented to them by these unusual and challenging animals.