Recruitment of cerithiid gastropods (Rhinoclavis spp.) in sediments at

Skilleter, GA (1992) Recruitment of cerithiid gastropods (Rhinoclavis spp.) in sediments at. Journal of Experimental Marine Biology and Ecology, 156 1: 1-21. doi:10.1016/0022-0981(92)90013-Z


Author Skilleter, GA
Title Recruitment of cerithiid gastropods (Rhinoclavis spp.) in sediments at
Journal name Journal of Experimental Marine Biology and Ecology   Check publisher's open access policy
ISSN 0022-0981
Publication date 1992-01-01
Year available 1992
Sub-type Article (original research)
DOI 10.1016/0022-0981(92)90013-Z
Open Access Status Not yet assessed
Volume 156
Issue 1
Start page 1
End page 21
Total pages 21
Place of publication AMSTERDAM
Publisher ELSEVIER SCIENCE BV
Language eng
Subject 1104 Complementary and Alternative Medicine
1105 Dentistry
2303 Ecology
Abstract The abundance of three species of deposit-feeding cerithiid gastropods, Rhinoclavis aspera (Linnaeus, 1758), R. fasciata (Bruguiere, 1792) and R. vertagus (Linnaeus, 1758), was monitored seasonally from May 1986 to January 1987 in sediments at One Tree Reef, southern Great Barrier Reef. All three species were most abundant in the coarse sandy sediments of a shallow sandflat, rather than in the finer sediments found in deeper channels within the lagoon. In contrast deposit-feeding temperate zone infauna are typically more abundant in finer sediments. To evaluate whether this pattern of greater abundance in sandy sediments was a result of greater recruitment to the sandflat compared with the channels, recruitment of each species was determined in each of two successive summers, January 1987 and January 1988. R. aspera recruited mostly to the sandflat compared with other habitats in both of 1987 and 1988, but for R. fasciata and R. vertagus this was only the case in 1988. These results are consistent with a model of larval depletion in the water column because larvae are always carried across the sandflat by water currents before reaching the lagoonal habitats so there are fewer larvae left in the water to settle into the finer sediments of the lagoon. The effect of removing all adult macrofaunal molluscs from the sediment on the recruitment of each species was also experimentally determined at 10 locations. The results varied among locations supporting alternative models of adult enhancement of recruitment, reduction of recruitment due to adults, or no effect of adults on recruitment. The results of this experiment, however, provide evidence against the previous larval depletion model because in some cases recruitment was increased in the lagoonal habitats where adults were removed indicating that there were still larvae available in the water over the fine sediments.
Keyword Cerithiid
Coral reef
Infauna
Recruitment
Rhinoclavis
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
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