00000nam 2200000za 4500 9.805845 CaOODSP 20251028133746 cr ||||||||||| 150406s2000 onc ob f000 0 eng d CaOODSP eng eng fre n-cn--- Fs70-1/2000-047E-PDF Campbell, Alan, 1944- Discussion of an experimental approach for northern abalone stock rebuilding in British Columbia [electronic resource] / A. Campbell, B. Lucas, G. Parker. Ottawa : Fisheries and Oceans Canada, 2000. 24 p. : tables. Canadian Stock Assessment Secretariat research document, 1480-4883 ; 2000/047 Includes bibliographical references (p. 16-20). This paper reviews published reports on rebuilding and restocking attempts for abalone stocks. Pilot experiments are proposed that potentially may provide base-line information on large-scale methods to rebuild northern abalone stocks in British Columbia. These include (1) establishing 3 or 4 experimental marine reserves throughout British Columbia to allow experimental manipulation of wild abalone adult densities for increasing abalone recruitment, (2) experimental outplanting of hatchery-reared northern abalone juveniles, on a small scale, to determine optimal size and density for release and probability of success in increasing juvenile and adult abalone densities. An ecosystem approach is recommended in which habitat parameters, algae and invertebrates are monitored. Manipulation of red sea urchins abundance to determine the effects on abalone survival and growth is suggested. Maintaining the northern abalone fishery closure indefinitely and continued large scale index site surveys every 4-5 years to monitor long-term trends in northern abalone populations are also important. Enforcement for the prevention of poaching northern abalone and partnerships between local communities and government agencies will be critical to the success of any rehabilitation attempts and long-term experiments. gccst Fisheries resources gccst Molluscs gccst Fishing area gccst Fisheries management Parker, G. Lucas, B. G. Canada. Department of Fisheries and Oceans. Canada. Canadian Stock Assessment Secretariat. Canadian Stock Assessment Secretariat research document, 1480-4883 ; 2000/047 (CaOODSP)9.507740 PDF 698 KB https://publications.gc.ca/collections/collection_2015/mpo-dfo/Fs70-1-2000-047-eng.pdf