Revised classification, nomenclator and typification of gastropod
and monoplacophoran families.
Thus, in bivalve veligers, as well as with gastropod
veligers (Romero et al., 2010), algae can be captured along nearly the entire length of prototrochal cilia beyond the zone of recovery strokes.
However, many species of gastropods
are included to the life cycle of helminths and the epizootic chain of domestic animals' invasive diseases, in particular Fasciola and Paramphistomum invasion of cattle.
Although the coiled nature of many gastropod
shells prevents a complete reconstruction of shell growth along the full growth axis, Tojoa and Ohnob (1999) combined both vertical and horizontal sectioning of the shell columella to reconstruct the ontogenetic growth history and observe the growth patterns in Terebralia palustris.
Prabhakaran MP, Kerala University of Fisheries and Ocean Studies, Jyothishkumar, Sree Narayana College for Women, Kollam and Ajin AM, Department of Marine Biology Microbiology and Biochemistry, Cochin University of Science and Technology, Cochin for their assistance in the collection and taxonomic identification of gastropod
To better understand molluscan prey selection, 277 shells were collected and examined from three collection sites along the Texas Upper Gulf Coast on the Bolivar Peninsula (29[degrees] 40'N, 94[degrees] 90'W) to test the hypothesis that drilling gastropods
exhibit prey selection.
abundance correlates with precipitation (Burch 1962, Whitlaw et al.
Diversity of Bivalve and Gastropod
, Molluscs of some localities from Raigad district, Maharashtra, west coast of India.
inhabit intertidal mud flats and rocks: Planaxis, Potamides, Cerithium, Clypeomorus, Mitra and Hexaplex.
But cold weather does hinder gastropod
activity, and at freezing temperatures they hibernate.
For example, freshwater organisms, such as benthic gastropods
, upon detecting the presence of predation through chemical cues will commonly deploy antipredator behavior at the expense of foraging (Lima, 1998), reducing gastropod
growth and reproduction (Turner, 1996), while indirectly increasing periphyton biomass.
The present survey conducted in some sites (Guelma, Nechmaya, Sidi Ammar, El Bouni and El Kala) located in the Northeast Algeria, shows a relatively high diversity of terrestrial gastropod
fauna, particularly in the NPK.