The shallow-water Asellota (Crustacea: Isopoda) from the Beagle Channel: Preliminary taxonomic and zoogeographical results
The shallow-water Asellota from the Beagle Channel were investigated, based on material collected at four localities in 2001-2002. A total of 3,124 asellotes were sorted, and three new species and 12 new records of distribution were reported. The Paramunnidae showed the highest species diversity and...
Published in: | Scientia Marina |
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Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Consejo Superior de Investigaciones Científicas
2005
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Subjects: | |
Online Access: | https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/319 https://doi.org/10.3989/scimar.2005.69s2159 |
Summary: | The shallow-water Asellota from the Beagle Channel were investigated, based on material collected at four localities in 2001-2002. A total of 3,124 asellotes were sorted, and three new species and 12 new records of distribution were reported. The Paramunnidae showed the highest species diversity and abundance (11 species and 1,463 specimens). The present research raises the number of species known from the Beagle Channel to 23; of these, 16 were previously reported from the Magellan Straits, representing 69% of similarity. Based on the present results and published data, the faunistic affinities for the shallow-water Asellota was 30% between the Magellan region and the Scotia Arc, and 26% between the Magellan region and the Antarctic Peninsula. Se estudiaron los isópodos Asellota colectados en cuatro localidades de aguas poco profundas del Canal Beagle en el 2001 y 2002. Se obtuvo un total de 3.124 ejemplares, se identificaron 3 especies inéditas y se dieron a conocer 12 registros nuevos de distribución. Paramunnidae fue la familia con mayor diversidad específica y abundancia (11 especies y 1.463 individuos). En el presente trabajo se elevó a 23 el número de especies conocidas para el Canal Beagle, 16 de las cuales son también conocidas del Estrecho de Magallanes (69% de similitud). A partir de los resultados del presente trabajo y datos bibliográficos, las afinidades faunísticas para los Asellota de aguas poco profundas fueron de 30% entre la región magallánica y el Arco de Scotia; y de 26% entre la región magallánica y la Península Antártica. |
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