000	02196nam  2200325za 4500
001	9.805027
003	CaOODSP
005	20221107135542
007	cr |||||||||||
008	150406s1999    oncdb   o    f000 0 eng d
040	|aCaOODSP|beng
041	|aeng|bfre
043	|an-cn---
086	1 |aFs70-1/1999-63E-PDF
100	1 |aMelvin, Gary Donald, |d1951-
245	12|aA proposed acoustic survey design for 4WX herring spawning components |h[electronic resource] / |cby G.D. Melvin and M.J. Power.
260	|aOttawa : |bFisheries and Oceans Canada, |c1999.
300	|a15 p. : |bfig., maps, tables.
490	1 |aCanadian Stock Assessment Secretariat research document, |x1480-4883 ; |v99/63
504	|aIncludes bibliographical references (p. 7).
520	|aOver the past several years the 4WX herring stock complex has been assessed using input from acoustic based surveys and fishing excursions. Unfortunately, the data have been collected in a somewhat ad hoc manner. The results, while providing valuable information on the abundance of herring on specific spawning grounds, are not comparable from year to year due to restricted coverage and only provide a minimum biomass of the fish observed on the day surveyed. The purpose of this report is to describe a survey approach which will incorporate standard acoustic protocol (i.e. randomly selected transects) and pre-defined strata into the industry surveys. In this way the area covered will be consistent from survey to survey, year to year and will allow for inter-annual comparison of the data and its possible use as an index of abundance sometime in the future (5-7 years).
692	07|2gccst|aFisheries resources
692	07|2gccst|aSalt water fish
692	07|2gccst|aFishing area
692	07|2gccst|aFisheries management
700	1 |aPower, M. J. |q(Mike J.)
710	1 |aCanada. |bDepartment of Fisheries and Oceans.
710	2 |aCanada.|bCanadian Stock Assessment Secretariat.
830	#0|aCanadian Stock Assessment Secretariat research document,|x1480-4883 ; |v99/63|w(CaOODSP)9.507740
856	40|qPDF|s1.29 MB|uhttps://publications.gc.ca/collections/collection_2015/mpo-dfo/Fs70-1-1999-63-eng.pdf