Diversity of Bivalve and Gastropod
, Molluscs of some localities from Raigad district, Maharashtra, west coast of India.
inhabit among/under intertidal rocks: Diodora, Trochus, Planaxis, Cronia, Lunella, Nerita, Cerithium, Cypraea and Hexaplex.
Once the major contribution was calculated, the relative trophic position of each gastropod
species was determined by means of the stable isotope signature (Post 2002):
One of the reasons the relationships between size and speed have not been fully explored is that the mechanism of propulsion in crawling gastropods
is variable (Miller, 1974a).
In Tennessee, the periods of greatest gastropod
activity are the rainy seasons of early fall and late winter.
Additionally, movement induced by flushes of contaminants, such as n-Ag, in freshwater ecosystems may reduce gastropod
fitness by using energy at the expense of growth or reproduction throughout their life history.
The inventory made in 5 five different sites located in the Northeast Algeria revealed 11 gastropod
species in 6 families.
We considered the 100-m sample transect the sample unit and tested for the effects of ecotype and sample period on abundance of gastropod
groups (total gastropods
, snails only, slugs only) using factorial ANOVA.
Eulithidium affine has previously been found to be the dominant species of gastropod
in phytal communities along the Brazilian coast (Montouchet, 1979; Dutra, 1988; Sa & Nalesso, 2000; Tanaka & Leite, 2003).
Key words: gastropod
, occurrence, ecology, Manchar Lake.
Morphological variation in freshwater gastropods
has been attributed to allometry, predation, competition, and environmental variation (Vermeij & Covich 1978; Kemp & Bertness 1984; DeWitt 1998; Dunithan et al.
Branched FAs in other marine gastropods
(Nassa serata, Nassarius albescens, Nodiolittorina subnodosa, Littorina scarab, Planaxis sulcata, Monodonta turbinate, Gibula cineraria and Littorina neritoides) have been reported , however hydroxy FAs have not been previously reported in any marine gastropod