00000nam 2200000zi 4500 9.949230 CaOODSP 20250318141935 m o d f cr mn||||||||| 250318e198412##bcca ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc pn----- x8x8 Fs97-6/1329E-PDF Fs97-6/1329E Kreiberg, Henrik, author. Roe herring impoundment research - report on the 1983/1984 studies / H. Kreiberg, J.R. Brett and A. Solmie. Nanaimo, British Columbia : Department of Fisheries and Oceans, Fisheries Research Branch, Pacific Biological Station, December 1984. ©1984 1 online resource (v, 31 pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian technical report of fisheries and aquatic sciences, 0706-6457 ; no. 1329 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (pages 12-13). "A fourth and supplementary year of testing the impounding of maturing Pacific herring in floating netpens was carried out in a field location, northern Gulf Islands, British Columbia. The object of the current work was to examine improved alternative methods for transport of large quantities of live herring. Three methods were compared: towed seine-net transfer, towed semi-submersible live-barge, and a newly-developed towable netpen. Herring caught by purse-seine in late January 1984 were moved to the holding site established the previous year in Whaleboat Passage, and held through to one week post-maturation in late March 1984. The towable netpen proved nearly as good as the live-barge and offered substantial improvement in survival to harvest over the towed seine. The findings of the previous 3 years on maturation and subsequent delay of spawning were confirmed; roe yield and quality assessments once again indicated a high quality for the impoundment roe. Yield of first-grade roe from an impoundment continues to increase for about 2 weeks post-maturation before peaking. A concluding section summarizes key aspects of the overall 4-year study. We consider the impoundment technique fully developed for adoption by industry"--Abstract, page iv. Includes abstracts in English and French. Pacific herring British Columbia Gulf Islands. Pacific herring Eggs British Columbia Gulf Islands. Fish culture British Columbia Gulf Islands. Hareng du Pacifique Colombie-Britannique Gulf, Îles. Hareng du Pacifique Œufs Colombie-Britannique Gulf, Îles. Pisciculture Colombie-Britannique Gulf, Îles. Canada. Department of Fisheries and Oceans, issuing body. Pacific Biological Station (1972- ), issuing body. Canadian technical report of fisheries and aquatic sciences ; no. 1329. (CaOODSP)9.504449 PDF 931 KB https://publications.gc.ca/collections/collection_2025/mpo-dfo/fs97-6/Fs97-6-1329-eng.pdf