Distribution of Pogonophora (tube-worms) in British Columbian fjordsSouthward, A.J. and Southward, E.C. (1992) Distribution of Pogonophora (tube-worms) in British Columbian fjords. Marine Ecology Progress Series, 82 (3). pp. 227-233. ISSN 0171-8630 Full text available as:
Official URL: http://www.int-res.com/abstracts/meps/v82/ AbstractABSTRACT The large perviate pogonophore Polybrachla canadensjs previously known from deep water off the west coast of British Columbia (B C ) Canada, and from Tasu Inlet on the west side of the Queen Charlotte Islands, has been found at 6 stations along kvers Inlet/Moses Inlet, a malnland B C fjord complex opening from Queen Charlotte Sound The pogonophore was a dominant element in the benthic macrofauna It was not found in samples from nearby Seymour and Belize Inlets a smaller and shallower fjord complex to the south of Rivers Inlet Pogonophora have not been seen in any samples from the southern B C fjords sheltered by Vancouver I or the inlets along its west coast Pervlate pogonophorans such as Polybrachja live in reducing sediments and are nourished by endosymbiotic chemoautotrophic bacteria that denve energy from parhculate sulphides in the sediment It IS unlikely that reducing conditions that produce such sulphides are any different In the southern B C fjords Explanations suggested for the differences In distribution of the pogonophores lnclude greater density and stability of the bottom waters of the northern fjords and their proximity to the deep sea population The presence of a sizeable deep-sea pogonophore at 200 to 300 m depth in the northern B C fjords is paralleled in the Norwegian fjords
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