Attenuated reproduction of Strombus gigas by an Apicomplexa: Emeriidae-like parasite in the digestive gland

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• 作者：Erick Baqueiro Cardenas ^{ebaqueiro@gmail.com} ; Jorge Montero ; Liliane Frenkiel¹ ; Dalila Aldana Aranda ; ^{daldana@mda.cinvestav.mx}
• 关键词：Strombus gigas ; Apicomplexa ; Reproduction ; Parasite ; Digestive gland ; Gastropod
• 刊名：Journal of Invertebrate Pathology
• 出版年：2012
• 期刊代码：120_00222011
• 类别：abs
• 出版时间：July, 2012
• 卷：110
• 期：3
• 页码：398-400
• 文件大小：408 K

摘要

An intense and generalized sporozoan infection was detected in every population of the queen conch, Strombus gigas through the Caribbean. In this contribution we establish the relationship between occurrences of an Apicomplexa: Emeriidae-like organism and reproductive activity at San Andres archipelago, Colombia. Occurrence of the parasites was estimated counting the feeding stage Merozoites and cysts Sporozoites at 40脳 magnification. Nonmetric multidimensional scaling analysis (NMDS) was made to correlate the parasites stages abundance with frequency of the reproductive stages. Gametogenesis and spawning were always low coinciding with high numbers of Merozoites, a positive correlation was established between parasite abundance with reabsorption and undifferentiated stages, and negative correlation was observed between parasite abundance with maturity and spawning stages. The nonmetric multidimensional scaling (NMDS) shows that gametogenesis, maturity and spawning increase as the number of parasites decrease, factor that could be threatening reproduction of S. gigas through the Caribbean.