Herring Spawning Surveys, Southern Bering Sea
Author : Irving M. Warner
Publisher :
Page : 208 pages
File Size : 41,42 MB
Release : 1977
Category : Fishes
ISBN :
Author : Irving M. Warner
Publisher :
Page : 208 pages
File Size : 41,42 MB
Release : 1977
Category : Fishes
ISBN :
Author : Irving M. Warner
Publisher :
Page : 118 pages
File Size : 36,52 MB
Release : 1979*
Category : Fish inspection
ISBN :
Twenty-six aerial surveys showing schools of forage fish were conducted and specimens were collected from Cape Sarichef north to the Yukon Delta. Samples of fish were collected for analysis, fecundity, and dietary preference.
Author : Bernard Einar Skud
Publisher :
Page : 24 pages
File Size : 28,24 MB
Release : 1959
Category : Atlantic herring
ISBN :
Aerial surveys to observe milt clouds produced by spawning herring in Southeastern Alaska waters hold promise as a method for assessing the extent of spawn deposition. Flights are conducted at altitudes of 500 to 700 feet and at cruising speeds of 120 knots. The mileage of beach utilized for spawning is recorded on reduced prints of navigation charts. The surveys have resulted in the discovery of 80 previously unreported spawning beaches. Observations during these preliminary flights have also added valuable information on the time of spawning and the physical characteristics of the beaches.
Author : Donald Wilbur Hood
Publisher :
Page : 648 pages
File Size : 48,32 MB
Release : 1980
Category : Marine resources
ISBN :
Author : Bernard Einar Skud
Publisher :
Page : 16 pages
File Size : 46,46 MB
Release : 1959
Category : Pacific herring
ISBN :
Aerial surveys to observe milt clouds produced by spawning herring in southeastern Alaska waters hold promise as a method for assessing the extent of spawn deposition. Flights are conducted at altitudes of 500 to 700 feet and at cruising speeds of 120 knots. The mileage of beach utilized for spawning is recorded on reduced prints of navigation charts. The surveys have resulted in the discovery of 80 previously unreported spawning beaches. Observations during these preliminary flights have also added valuable information on the time of spawning and the physical characteristics of the beaches.
Author :
Publisher :
Page : 218 pages
File Size : 35,41 MB
Release : 1982
Category : Fishery management
ISBN :
Author :
Publisher :
Page : 196 pages
File Size : 41,44 MB
Release : 1980
Category : Continental shelf
ISBN :
Author :
Publisher :
Page : 640 pages
File Size : 47,25 MB
Release : 1978
Category : Hydrology
ISBN :
Author : Bernard Einar Skud
Publisher : Forgotten Books
Page : 26 pages
File Size : 29,67 MB
Release : 2017-10-29
Category : Business & Economics
ISBN : 9780265910566
Excerpt from Herring Spawning Surveys in Southeastern Alaska The purpose of this report is (l) to describe the procedures of the aerial survey and (2) to record preliminary information gained from surveys of the past three years. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author : Louis H. Barton
Publisher :
Page : 63 pages
File Size : 39,93 MB
Release : 1980
Category : Bering Sea Coast (Alaska)
ISBN :
Presents the results of research on herring in the eastern Bering Sea from March 1978 through September 1979. Although capelin were originally included, the research on those fish stocks along with some data gathering objectives were dropped due to funding constraints. Research objectives include describing and monitoring separate spawning stocks of herring, evaluating their distribution, abundance, and spawning success, and evaluating abundance survey methods. Aerial surveys covered coastal waters from Port Moller to Bering Strait. Shore based studies were carried out at Metervik Bay, Tongue Point, Security Cove, Goodnews Bay, Nelson Island, Cape Romanzof, Cape Denbigh and Grantley Harbor.