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A skeleton-less sponge of Caribbean mangroves: invasive or undescribed?

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dc.contributor.author Alvizu, A. en
dc.contributor.author Díaz, M. C. en
dc.contributor.author Bastidas, C. en
dc.contributor.author Rützler, Klaus en
dc.contributor.author Thacker, R. W. en
dc.contributor.author Márquez, L. M. en
dc.date.accessioned 2013-08-23T14:40:02Z
dc.date.available 2013-08-23T14:40:02Z
dc.date.issued 2013
dc.identifier.citation Alvizu, A., Díaz, M. C., Bastidas, C., Rützler, Klaus, Thacker, R. W., and Márquez, L. M. 2013. "<a href="https://repository.si.edu/handle/10088/21141">A skeleton-less sponge of Caribbean mangroves: invasive or undescribed?</a>." <em>Invertebrate Biology</em>. 132 (2):81&ndash;94. <a href="https://doi.org/10.1111/ivb.12015">https://doi.org/10.1111/ivb.12015</a> en
dc.identifier.issn 1744-7410
dc.identifier.uri http://hdl.handle.net/10088/21141
dc.description.abstract Recent surveys of sponges occurring on Caribbean mangrove roots demonstrated the presence of a skeleton-less sponge of the genus Halisarca, very similar in its morphology to the temperate H. dujardinii. This study evaluated the possibility that the mangrove sponge was actually H. dujardinii that had been introduced into the Caribbean mangroves. Detailed histology revealed differences between the mangrove sponge and H. dujardinii in cuticle thickness, and in characteristics of the choanocytes, spherulous, and granular cells. Also, phylogenetic reconstruction and genetic distance estimates based on cytochrome oxidase I gene sequences clearly differentiated the mangrove Halisarca sp. from H. dujardinii. Therefore, we rejected the hypothesis of the invasion of H. dujardinii, recognizing instead the mangrove Halisarca sp. as a new species and naming it H. restingaensis sp. nov. Estimated levels of genetic variation in the ribosomal internal transcribed spacers indicated that populations of H. restingaensis sp. nov. are highly differentiated between Venezuela and Panama (Fst=0.71). This level of population differentiation is consistent with the short larval competence period that is common in members of the genus Halisarca. en
dc.relation.ispartof Invertebrate Biology en
dc.title A skeleton-less sponge of Caribbean mangroves: invasive or undescribed? en
dc.type Journal Article en
dc.identifier.srbnumber 115960
dc.identifier.doi 10.1111/ivb.12015
rft.jtitle Invertebrate Biology
rft.volume 132
rft.issue 2
rft.spage 81
rft.epage 94
dc.description.SIUnit NH-Invertebrate Zoology en
dc.description.SIUnit NMNH en
dc.description.SIUnit Peer-reviewed en
dc.citation.spage 81
dc.citation.epage 94

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