Corallivorous snail feeding is a common source of tissue loss for the threatened coral, Acropora palmata, accounting for roughly one-quarter of tissue loss in monitored study plots over seven years. In contrast with larger threats such as bleaching, disease, or storms, corallivory by Coralliophila abbreviata is one of the few direct sources of partial mortality that may be locally managed. We c...

the present study was conducted to investigate the prevalence of developmental stages of fasciola gigantica infection in lymnaea snails and their populations in sylhet region of bangladesh. a total of 1865 lymnaea snails were collected and examined, of which 56 (3%) were found to having infected with developmental stages of fasciola gigantica. only 4.08% infected of 515 snails were collected fr...

methanol extracts of callistemon viminalis (sol. ex gaertner) g.don ex loudon fruits, bark and leaves were tested for molluscicidal activity. snails were collected and kept in dechlorinated water under standard condition. ten adults b. alexandrina, of the same size, were introduced in plastic acquaria for each experiment. the powdered organs extracted with methanol and the dried extracts were k...

in the field trials of slow-release nollusicide, copper content mcckechnie chemical inc. 30 cuso4 5h2o or 7.5 cupellet/sinking material 7 days release life were tested against the common aquatic snails bulinus truncatus, physa acuta and lymnaea gedrosiana in stagnant water bodies in khuzestan province, south-west of iran. snail densities before treatment and 7 days after mollucicide application...

Diverse animals exhibit left-right asymmetry in development. However, no example of dimorphism for the left-right polarity of development (whole-body enantiomorphy) is known to persist within natural populations. In snails, whole-body enantiomorphs have repeatedly evolved as separate species. Within populations, however, snails are not expected to exhibit enantiomorphy, because of selection aga...

The shell morphology of mud snails, Zeacumantus subcarinatus, both uninfected and infected by trematodes, was compared to determine if di¡erent trematode species induce di¡erent degrees of alteration in host shell shape. Snails harbouring either the echinostomatid Acanthoparyphium sp., or a double infection by the microphallid Maritrema novaezealandensis and an undescribed philophthalmid specie...

BACKGROUND The planorbid freshwater snails of the two genera, Biomphalaria and Bulinus -have been vigorously studied due to the role they play as intermediate hosts of schistosomiasis. In Sudan specifically, most studies have focused on the chemical and ecological control of the two genera, but few studies have looked at their biological control. This study explored the coexistence of other spe...

Activity of xanthine oxidase, levels of lipid peroxidation and ascorbic acid were studied in African land snail (Achatina marginatus) from two sites with different pollution potentials. Lipid peroxidation was significantly higher in the snails from the polluted site compared to the value obtained from the same species from the control site. Similarly, the activity of xanthine oxidase in the sna...

The Neogastropoda include many familiar molluscs, such as cone snails (Conidae), purple dye snails (Muricidae), mud snails (Nassariidae), olive snails (Olividae), oyster drills (Muricidae), tulip shells (Fasciolariidae), and whelks (Buccinidae). Due to their amazing predatory specializations, neogastropods are often dominantmembers of the benthic community at the top of the food chain. In a daz...

BACKGROUND The construction and operation of small multipurpose dams in Africa have a history of altering the transmission of water-based diseases, including schistosomiasis. The current study was designed to investigate the abundance and dynamics of schistosomiasis intermediate host snails and Schistosoma infections in humans during the construction and the first years of operation of a small ...