The Fishery Biology of Two Deep-Water Skates, <i>Bathyraja schroederi</i> and <i>Amblyraja frerichsi</i> (Rajiformes: Rajidae), from the Southeast Pacific Ocean
Chile is a biodiverse region for deep-water skates (Rajiformes), with 36 species documented in national waters, of which 73% correspond to deep-water species. Among them, the Thickbody skate (<i>Amblyraja frerichsi</i>) and Whitemouth skate (<i>Bathyraja schroederi</i>) are t...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-11-01
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| Series: | Diversity |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-2818/16/12/709 |
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| Summary: | Chile is a biodiverse region for deep-water skates (Rajiformes), with 36 species documented in national waters, of which 73% correspond to deep-water species. Among them, the Thickbody skate (<i>Amblyraja frerichsi</i>) and Whitemouth skate (<i>Bathyraja schroederi</i>) are two poorly documented species with relatively high abundances. However, the current information is limited to a few specimens reported over the last 50 years between southern Brazil (SW Atlantic) and central Chile (SE Pacific). In the Southeast Pacific, both species are bycatch in the Patagonian toothfish (<i>Dissostichus eleginoides</i>) fishery, which operates along the Chilean coast between 800 and 1600 m of depth. This study examined aspects of demography and reproductive biology based on data from 190 specimens (125 <i>A. frerichsi</i> and 65 <i>B. schroederi</i>) obtained from the fishery in northern Chile. The new data contribute to enhancing our understanding of deep-water skate communities and highlight the vulnerability and fishing pressure experienced across their geographic distribution. |
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| ISSN: | 1424-2818 |