00000nam 2200000zi 4500 9.956963 CaOODSP 20251031143237 m o d f cr mn||||||||| 251031t19901990bcca ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc pn----- x8x9 Fs97-4/2088E-PDF Fs97-4/2088E Foucher, R. P., author. Estimation of the fecundity of Pacific cod (Gadus macrocephalus) / by R.P. Foucher and A.V. Tyler. Nanaimo, British Columbia : Department of Fisheries and Oceans, Biological Sciences Branch, Pacific Biological Station, 1990. ©1990 1 online resource (iii, 49 pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian manuscript report of fisheries and aquatic sciences, 0706-6473 ; 2088 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (page 8). "Fecundity was determined for 350 Pacific cod from the west coast of Vancouver Island (LaPerouse area) and Hecate Strait over five years, 1986-90. There was little variation by year, geographic area or temperature and no significant difference from similar work done about 25 years earlier. Counts ranged from 0.228 to 5.67 million oocytes for fish ranging in length from 40 to 89 cm. Relationships were determined for fecundity on fish length and weight. The process of hydration was found to greatly affect the number of oocytes per mg, and the percent dry weight vs fish length and ovary weight vs fish weight relationships. The generally smaller oocytes found in smaller fish suggests that either smaller fish release smaller oocytes, or that they possibly spawn later, allowing more time for oocyte growth"--Abstract, page iii. Includes abstracts in English and French. Pacific cod Fertility British Columbia Pacific Coast. Ovum. Morue du Pacifique Fécondité Colombie-Britannique Pacifique, Côte du. Ovocytes. Canada. Department of Fisheries and Oceans, issuing body. Pacific Biological Station (1972- ), issuing body. Canadian manuscript report of fisheries and aquatic sciences ; 2088. (CaOODSP)9.505211 PDF 739 KB https://publications.gc.ca/collections/collection_2025/mpo-dfo/fs97-4/Fs97-4-2088-eng.pdf