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Distribution of Onchidium damelii Semper (Gastropoda, Onchidiidae)
|Title:||Distribution of Onchidium damelii Semper (Gastropoda, Onchidiidae)|
|Publisher:||University of Hawaii Press|
|Citation:||Kenny R, Smith A. 1987. Distribution of Onchidium damelii Semper (Gastropoda, Onchidiidae). Pac Sci 41: 21-30.|
|Abstract:||The pulmonate gastropod Onchidium damelii Semper has a widespread
tropical Indo-Pacific intertidal distribution. The present study examines
some environmental factors in relation to the local distribution and density of
the species in a tropical mangrove region.
Tidal regime, flora l zonation, substrate particle size and organic content, and
temperature relationships were investigated.
O. damelii shows habitat preference rather than a zonal (tidal pattern) distribution
within the mangroves; population density is associated with substrate
particle size and organic content. Considerable differences in size of individuals
were noted between populations, probably related to available organic matter
and feeding time.
Animal temperatures were correlated with substrate temperatures and do not
appear to influence distribution patterns.
|Appears in Collections:||Pacific Science Volume 41, Numbers 1-4, 1987|
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