Download or read book Population Dynamics and Biological Characteristics of the Newfoundland West Coast Herring Stock written by John A. Moores and published by . This book was released on 1980 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Northwest Atlantic Fishery Science written by and published by . This book was released on 1980* with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Assessment of the West Coast of Newfoundland NAFO Division 4R Herring Stocks 1973 96 written by and published by . This book was released on 1997 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first section of this paper reviews the herring fishery on the west coast of Newfoundland, including total catches, catches in the purse seine fleet & the gillnet fleet, and target quota allocations. The second section presents information on the biological characteristics of herring from that area, based on samples taken from the commercial fishery. The information includes the proportion of each spawning stock in the commercial catch, age composition of the catch, & condition factor. The third section provides estimated abundance indices for the herring stock based on acoustic surveys, fishery logbook data, and fishermen's questionnaires. The final section discusses the status of the west coast herring stocks and presents a prognosis for the stocks.
Download or read book Biological Characteristics of Atlantic Herring Clupea Harengus Harengus L from Newfoundland s West Coast for the 1965 2001 Period written by Canada. Department of Fisheries and Oceans and published by Mont-Joli, Quebec : Fisheries and Oceans 2003.. This book was released on 2003 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 1994 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book West Coast of Newfoundland Atlantic Herring Division 4R in 2004 written by and published by . This book was released on 2005 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides an assessment of the Atlantic herring (Clupea harengus harengus) stocks on the west coast of Newfoundland. The assessment is based on the main fishery and biology data gathered for the spring and fall spawning stocks, including landings, population structure, growth, condition, maturity, feeding and predation. It also provides abundance indices, a dispersion index and the results of a sequential population analysis. The report concludes by recommending conservation measures.
Download or read book Cod written by George A. Rose and published by Breakwater Books. This book was released on 2007 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: The devastation of many of the greatest North Atlantic cod stocks, particularly those of Newfoundland and Labrador and the Grand Banks, has become an icon for the unsustainable relation between human exploitation and Nature. Here, George Rose tells the full story of that devastation, in scientific detail, for the first time - from the formation of the North Atlantic marine ecosystems to the massive stock declines in the last half of the 20th century. Politics and the fisheries are inextricably entwined. In Cod, Rose recounts the many political influences on the fisheries over several centuries and describes how neglect from the late 1800s onward led to insufficient scientific knowledge and little protection for the stocks when massive Euro-Russian fleets targeted the Grand Banks after World War II, destroying the most prolific fishery the world has known. Cod is no armchair account, but a controversial one that includes original information on the North Atlantic fisheries.
Download or read book West Coast of Newfoundland Atlantic Herring Division 4R written by and published by . This book was released on 2001 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document is an update of the data regarding the fishery, biology, and abundance of Atlantic herring (Clupea harengus) on the west coast of Newfoundland. It provides a complete analytical assessment of the spring and fall spawning stocks of this species.
Download or read book Analysis of the Status of the Newfoundland West Coast Herring Stocks written by J. A. Moores and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Both the inshore and mobile components of the herring fishery in the Newfoundland west coast stock area experienced an increase in catch in 1978 despite a declining trend in stock abundance (Moores and Winters 1978). Total catch in 1978 was 15,922 metric tons, an increase of 30% above the 1977 catch of 12,286 m tons (Table 1). The large increase in catch is primarily attributable to the inshore components (gillnet, bar seine, trap) which landed 5596 m tons in 1978, double the 1977 catch (2822 m tons)"--Introduction, page 1.
Download or read book Technical Report Fisheries and Marine Service written by Canada. Fisheries and Marine Service and published by . This book was released on 1979 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Review written by Fisheries Research Board of Canada and published by . This book was released on 1973 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Examination of the Status of the West Coast Herring Stock with a Re evaluation of the Historical Data Base written by John A. Moores and published by . This book was released on 1982 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Catches from the Newfoundland west coast herring stock fell from 19,100 t in 1980 to 13,200 t in 1981 with a reduction in catch occurring in all gear components. The catches from both spawning groups are dominated by age group 11+ with the only change in the age frequency distribution from 1980 being an increased contribution from the 1977 year-class by both spawning groups. Due to the predominance of old fish in the autumn-spawning component the values of natural mortality were re-examined."--Abstract.
Download or read book A Review of the West Coast of Newfoundland NAFO Division 4R Herring Fishery and Biological Trends in 1989 written by I.H. McQuinn and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Characteristics of Southwest Newfoundland Herring 1965 71 written by L. S. Parsons and published by . This book was released on 1973 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Examination of the Status of the Newfoundland West Coast Herring Stock written by John A. Moores and published by . This book was released on 1981 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: "During the past five years catches from the Newfoundland west coast herring stock have risen steadily reaching almost 19,000MT in 1980. While the purse seine catch has remained stable for the past few years the gillnet component continued to show some expansion. The catches from both spawning components were dominated by age-groups 11+ indicating that recent recruitment has not been exceedingly strong. The only exception being the 1974 year-class of spring-spawners which is estimated at 1/4 the strength of the 1968 year-class."--Abstract.
Download or read book Analytical Assessment and Risk Analyses for the Stock of Spring spawning Herring Clupea Harengus Harengus L on the West Coast of Newfoundland NAFO Division 4R in 2001 written by and published by . This book was released on 2002 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report uses the most recent data available to perform an analytical assessment (Sequential Population Analysis or SPA) of the abundance of the spring spawning herring stock along the west coast of Newfoundland. A second objective was to determine, for the 2002 fishing season, the acceptable catch levels assuming various exploitation rates and changes in the spawning stock biomass.
