Distribution, Abundance, and Biomass of Tropical Limpet Cellana testudinaria (Class: Gastropoda, Family: Patellidae) Living on the Rocky Shore of Ohoiwait, Southeast Moluccas, Indonesia
Abstract: The distribution,
abundance, and biomass of the tropical limpet C. testudinaria are described
separately for the high, middle and low shore levels. A total of 2402 limpets
were obtained in 12 monthly collections (from October 2001 to September 2002).
The mean density over the whole period was 11.12 ± 4.51 ind.m-2. The density
tended to be higher at the high (15.79 ± 7.54 ind.m-2) and the middle (14.67 ±
13.99 ind.m-2) than at the low shore level (2.90 ± 2.44 ind.m-2). Analysis of
variance showed significant density differences among shore levels, months, as
well as a significant interaction between shore levels and months. The
small-scale dispersion patterns did not show any seasonal variability. They
were strongly clumped throughout the year and at each shore level. The mean
annual population biomass was estimated to be 1013 ± 748 mg AFDW.m-2 (21.8
kJ.m-2). The highest biomass (3236 mg AFDW.m-2 or 69.9 kJ.m-2) occurred in
September 2002, whilst the lowest (544 mg AFDW.m-2 or 11.7 kJ.m-2) was in March
2002. The monthly mean biomass (619 mg AFDW.m-2 or 13.4 kJ.m-2) of the rainy
season was lower than that (899 mg AFDW.m-2 or 19.4 kJ.m-2) of the dry season.
Author: Abraham Seumel Khouw
Journal Code: jpperikanangg060003

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