In situ accumulation of marine algal exudate by a polychaete worm (Schizobranchia insignis) |
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| Authors: | P V Fankboner L D Druehl |
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| Institution: | (1) Bamfield Marine Station, VOR 1BO Bamfield, British Columbia, Canada;(2) Department of Biological Sciences, Simon Fraser University, V5A 1S6 Burnaby, British Columbia, Canada |
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| Abstract: | Summary For the first time, heterotrophic accumulation of dissolved carbon by a soft-bodied marine invertebrate under in situ conditions has been demonstrated. The polychaete wormSchizobranchia insignis Bush concentrated14C-labelled dissolved carbon (DC) exudated by the large brown alga,Macrocystis integrifolia Bory, 14 times over the killed controls. Our evidence suggests that algal exudate may be a significant nutritional supplement to some invertebrates cohabitating withM. integrifolia.This study was supported by Operating Grant No. A6966 to PVF from the National Research Council of Canada.We are grateful to MrG. F. Cota, Dalhousie University, Halifax, for his contributions to the field experiments. |
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