00000nam 2200000zi 4500 9.895894 CaOODSP 20221107174147 m o d f cr bn||||||||| 210129s1987 nscbd ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-pi Fs70-8/87-91E-PDF Pringle, J. D. (John D.) author. Dragraking impact on Irish moss (Chondrus crispus) frond size structure / by J.D. Pringle and R.E. Semple. [Dartmouth, N.S.] : Canadian Atlantic Fisheries Scientific Advisory Committee ; Halifax, N.S. : Invertebrates, Marine Plants, and Environmental Ecology Division, Biological Sciences Branch, Halifax Fisheries Research Laboratory, Department of Fisheries and Oceans, Scotia-Fundy Region, [1987?] 1 online resource (16 pages) : maps, graphs. text txt rdacontent computer c rdamedia online resource cr rdacarrier CAFSAC research document ; no. 87/91 Cover title. "Not to be cited without permission of the author(s)." Includes bibliographical references (pages 8-9). "Chrondrus crispus Stackhouse has been intensively cropped by dragrakes off western Prince Edward Island for 20 yr. Here we attempt to assess the impact of this harvest on frond class (based on frond dichotomy number) size structure by comparing samples from dragraked and non-dragraked Marine Plant Harvesting Districts (MPHD). Frond size class frequency distribution in the former district was biomodal, with peaks in abundance at Classes 0 (no dichotomies) and 6 (six dichotomies). This distribution was unimodal in the latter district with peaks at about Class 7"--Abstract, page 2. Includes abstract and series statement in French. Chondrus crispus Size Prince Edward Island. Chondrus crispus Taille Île-du-Prince-Édouard. Canadian Atlantic Fisheries Scientific Advisory Committee, issuing body. Canada. Department of Fisheries and Oceans. Scotia-Fundy Region, issuing body. Canada. Department of Fisheries and Oceans. Biological Sciences Branch, issuing body. CAFSAC research document (Canadian Atlantic Fisheries Scientific Advisory Committee) no. 87/91. (CaOODSP)9.869616 PDF 968 KB https://publications.gc.ca/collections/collection_2021/mpo-dfo/fs70-8/Fs70-8-87-91-eng.pdf