Imposex in Thaisella chocolata (Duclos, 1832) (Gastropoda: Muricidae) Caldera Bay, Chile
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Imposex Induction in Stramonita Haemastoma Floridana (conrad, 1837) (mollusca: Gastropoda: Muricidae) Submitted to an Organotin-contaminated Diet
Marine organisms are affected by organotin compounds due to the cumulative, deleterious effects of these latter. The most evident and well known consequence of organotin contamination is imposex, a hormonal disruption that causes a superimposition of sexual male features in females of prosobranchia neogastropod molluscs such as Stramonita haemastoma floridana. Molluscs accumulate organotins mai...
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The spawning of the muricid gastropod Plicopurpura pansa in the laboratory at 22-23 degrees C is described. Females deposited 1-20 capsules daily for at least 20 weeks, and produced up to 150 capsules each per spawning season. During spawning, egg clusters were formed consisting of hundreds of capsules of different ages deposited by different females. Each egg capsule contained an average of 43...
متن کاملCoralliophilinae (Gastropoda: Muricidae) associated with deep-water coral banks in the Mediterranean
Fisheries and scientific investigations of the recently discovered deep-water coral province south of Malta sampled living specimens of two deep-water Coralliophilinae intimately associated with Lophelia-Madrepora coral banks. The species are ‘Coralliophila’ richardi (Fischer P., 1882) and Babelomurex sentix (Bayer, 1971). A third coralliophilinid ‘Coralliophila’ squamosa (Bivona Ant. in Bivona...
متن کاملReproductive cycle of Bolinus brandaris (Gastropoda: Muricidae) in the Ria Formosa lagoon (southern Portugal)
The purple dye murex Bolinus brandaris is a commercially valuable gastropod in Portugal. However, there is a lack of knowledge on the reproductive cycle in Atlantic populations of this species. In this context, the reproductive cycle of B. brandaris from the Ria Formosa lagoon, southern Portugal, was studied using standard histology and light microscopy and the calculation of bio-physiological ...
متن کاملThe Ontogeny of the Pleurembolic Proboscis in Nucella Lapillus (gastropoda: Muricidae)
The ontogeny of the proboscis in Nucella lapillus was investigated using light and scanning electron microscopy. The proboscis develops by elongation of the body wall surrounding the mouth, whilst the rhynchocoel is formed by imagination of the body wall surrounding the proboscis. Elongation of the snout during development of the proboscis results in the anterior movement of the anterior oesoph...
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ژورنال
عنوان ژورنال: Latin American Journal of Aquatic Research
سال: 2016
ISSN: 0718-560X,0718-560X
DOI: 10.3856/vol44-issue4-fulltext-18