000 02668nam  2200337za 4500
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008150406s2000    onc     ob   f000 0 eng d
040 |aCaOODSP|beng
041 |aeng|bfre
043 |an-cn---
0861 |aFs70-1/2000-076E-PDF
1001 |aSjare, Becky L.,|d1958-
24510|aEstimating struck and loss rates for harp seals in the northwest Atlantic |h[electronic resource] / |cB. Sjare, G.B. Stenson and M.O. Hammill.
260 |aOttawa : |bFisheries and Oceans Canada, |c2000.
300 |a14 p. : |bfig., tables.
4901 |aCanadian Stock Assessment Secretariat research document, |x1480-4883 ; |v2000/076
504 |aIncludes bibliographical references (p. 11).
520 |aOne of the major sources of unreported mortality during the commercial harp seal hunt in the northwest Atlantic is the number of animals killed or fatally wounded and not recovered by hunters (i.e. seals that are struck and lost). With the significant expansion of the hunt both in Canada and in Greenland during the mid 1990s, there is a concern that unreported mortalities of harp seals struck and lost may have reached a level that is not sustainable from a long-term management perspective. To address this problem a study on the number of seals struck and lost in Newfoundland waters was initiated. The results summarized in this research document are based on observations collected by the marine mammal Section, DFO and the Fisheries Observer Program in 1998 and 1999. In general, overall loss rates for beaters taken on the ice varied from 0-2.0% and from 0-10.0% when taken in the water. Older seals aged 1+ had overall loss rates of 0-21.6% when taken on ice and rated of 5.0-50.0% when taken in the water. Although sample sizes were limited (especially for seals taken in the water) and there was only limited coverage of the hunt, these data provide current estimates of struck and loss rates and have been incorporated into recent harp seal population modeling initiatives.
69207|2gccst|aFisheries resources
69207|2gccst|aSeals
69207|2gccst|aFishing area
69207|2gccst|aFisheries management
7001 |aStenson, Garry B. |q(Garry Bruce), |d1954-
7001 |aHammill, M. O. |q(Michael O.)
7101 |aCanada. |bDepartment of Fisheries and Oceans.
7102 |aCanada.|bCanadian Stock Assessment Secretariat.
830#0|aCanadian Stock Assessment Secretariat research document,|x1480-4883 ; |v2000/076|w(CaOODSP)9.507740
85640|qPDF|s59 KB|uhttps://publications.gc.ca/collections/collection_2015/mpo-dfo/Fs70-1-2000-076-eng.pdf