Standing stock and production of Ecklonia radiata (C.Ag.): J. Agardh |
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Authors: | Hugh Kirkman |
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Institution: | CSIRO Division of Fisheries Research, P.O. Box 20, North Beach, W.A. 6020, Australia |
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Abstract: | The monthly productivity, standing stock, plant size and density of Ecklonia radiata (C.Ag.) J. Agardh is presented for a 2-yr period. Annual production was 20.7 kg wet wt · m?2 with maximum growth of 0.9% per day in spring (October–December) and minimum growth of 0.2% per day in late summer. (March–April). A close negative correlation was found between spring and summer growth and water temperature. Maximum biomass (18 kg wet wt · m ?2) did not coincide with maximum growth but occurred in late summer. Minimum biomass (6 kg wet wt · m ?2) occurred in winter. An estimate of erosion of plant material from the kelp bed was made from these data and a hypothesis concerning the ultimate destination of eroded and removed kelp plants was formulated. |
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