snail is one of the worst causes of food allergy. thus, the aim of this study was to identify the major and minor allergens of the local marine snail ( cerithidea obtusa ) and subsequently to investigate the impacts of heat treatment on the ige-binding activity of snail allergens. proteins from raw and heat-treated snails (boiled, roasted and fried) were extracted and then resolved by sodium do...

The degree of sexual size dimorphism (SSD) in the cichlid Lamprologus callipterus is the greatest recorded among species in which males exceed females in body size. Males collect and defend empty snail shells in which females breed. We report on the potential importance of different selection mechanisms and constraints on male and female body sizes. To test for the importance of sexual selectio...

The camaenid land snail genus Camaena is widely distributed throughout Southeast Asia. Thirteen species are found in China alone. Among these, Camaena cicatricosa (Müller, 1774) is the most widely distributed species, including four subspecies, Camaena cicatricosa ducalis (Ancey, 1885), Camaena cicatricosa inflata (Möllendorff, 1885), Camaena cicatricosa obtecta (Fischer, 1898) and Camaena cica...

The freshwater common pond snail Lymnaea stagnalis produces embryos that complete direct development, hatching as shell-bearing individuals within 10 days despite relatively low ambient calcium and carbonate availability. This development is impaired by removal of ambient total calcium but not by removal of bicarbonate and/or carbonate. In this study we utilized pharmacological agents to target...

-The hunting behavior, snail size selection, and time-activity patterns of nonbreeding Snail Kites (Rostrhamus sociabilis sociabilis) were studied in Guyana rice fields. Kites spent 62% of the photoperiod perching, 19% foraging, 13% in maintenance activities, and 6% flying. As the day progressed, the percentage of daylight hours spent perching increased significantly, while foraging decreased s...

The slipper shell snail Crepidula fornicata forms dense assemblages along much of the European coast, where it co-occurs with oysters. We examined the susceptibility of slipper shell larvae to predation by suspension-feeders, including adults of their own species. In particular, we compared filtration rates on phytoplankton with those on larvae, and determined the extent to which consumption of...

In Argentina, no ecological studies have been reported on the infection parameters of Kalipharynx sp. metacercariae in planorbid snails. To this end, the aims of this study were: (i) to provide information on the population biology of Kalipharynx sp. metacercariae in the planorbid snails Biomphalaria tenagophila and B. occidentalis through the study of prevalence and intensity of larval infecti...