00000nam 2200000zi 4500 9.951621 CaOODSP 20250813120220 m o d f cr bn||||||||| 250530e198407##bccab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc pn----- x8x8 Fs97-4/1779E-PDF Fs97-4/1779E Sloan, N. A., author. Observations on Portland Inlet system, northern British Columbia golden king crabs (Lithodes aequispina) and their infestation by a rhizocephalan barnacle parasite (Briarosaccus callosus) / by N.A. Sloan. Nanaimo, British Columbia : Department of Fisheries and Oceans, Fisheries Research Branch, Pacific Biological Station, July 1984. ©1984 1 online resource (v, 61 pages) : illustrations, maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian manuscript report of fisheries and aquatic sciences, 0706-6473 ; 1779 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (pages 9-10). "From three deep-water fjords in the Portland Inlet system, northern British Columbia, 1396 golden king crabs (Lithodes aequispina) suffered 36.7% infestation by the rhizocephalan barnacle parasite Briarosaccus callosus in October-November, 1983. The 72 red king crabs (Paralithodes camtschatica) and the 782 Tanner crabs (Chionoecetes bairdi) coincidentally sampled in the 169 single king crab pot sets were unpartized. Alice and Hastings Arms golden king crabs suffered similar (38.4-39.7%) parasitism levels whereas Observatory Inlet crabs were only 2.9% parasitized. Portland Inlet yielded only two (unparasitized) L. aequispina and Work Channel none. In all fjords 38.9% of males and 34.8% of females were parasitized. Other aspects covered are: host abundance, between and within fjord differences of parasitized or unparasitized hosts and reproductive status of unparasitized female L. aequispina. Relatively high L. aequispina populations and infestation levels of B. callosus in the extremities of the Portland Inlet system are related to the deep-water habitat preferences of the crabs and the oceanographic isolation of the fjords. A literature survey on what little is known about the biology of L. aequispina is provided"--Abstract, page iv. Includes abstracts in English and French. Golden king crab Parasites Portland Canal (Alaska and B.C.) Rhizocephala Portland Canal (Alaska and B.C.) Crabe royal doré Parasites Portland, Canal (Alaska et C.-B.) Rhizocéphales Portland, Canal (Alaska et C.-B.) Canada. Department of Fisheries and Oceans, issuing body. Pacific Biological Station (1972- ), issuing body. Canadian manuscript report of fisheries and aquatic sciences ; 1779. (CaOODSP)9.505211 PDF 1.04 MB https://publications.gc.ca/collections/collection_2025/mpo-dfo/fs97-4/Fs97-4-1779-eng.pdf