Deep-Water Cartilaginous Fishes in the Central Mediterranean Sea: Comparison between Geographic Areas with Two Low Impact Tools for Sampling
Baited lander represents a low impact technique, an alternative to the traditional trawl sampling for collecting data on fish diversity and abundance, especially for threatened species such as Chondrichthyes living in sensitive habitats. In this study, distribution and abundance of cartilaginous fis...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/9/7/686 |
| _version_ | 1797529189400707072 |
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| author | Angela Carluccio Francesca Capezzuto Porzia Maiorano Letizia Sion Gianfranco D’Onghia |
| author_facet | Angela Carluccio Francesca Capezzuto Porzia Maiorano Letizia Sion Gianfranco D’Onghia |
| author_sort | Angela Carluccio |
| collection | DOAJ |
| description | Baited lander represents a low impact technique, an alternative to the traditional trawl sampling for collecting data on fish diversity and abundance, especially for threatened species such as Chondrichthyes living in sensitive habitats. In this study, distribution and abundance of cartilaginous fish were compared between two geographic areas, the southern Adriatic Sea and the north-western Ionian Sea, with two low impact sampling gears, an experimental bottom longline and a baited lander. Species diversity was evaluated by applying ecological indices and difference in mean abundances were tested using multivariate analysis. A total of 13 species of cartilaginous fish were collected. Significant differences in the assemblage recorded in the same area using different sampling tools were detected and no significant differences were detected among different areas explored with the same method. Using longline, the most abundant species collected in both areas was <i>Galeus melastomus</i>, while using lander, the most observed species were <i>Dalatias licha</i> in the southern Adriatic Sea and <i>Hexanchus griseus</i> in the north-western Ionian Sea. According to IUCN classification, of the 13 species collected, 2 are near threatened and 5 are threatened. A better governance of sensitive habitats coinciding with the essential fish habitat for these species would ensure them a better conservation status. |
| first_indexed | 2024-03-10T10:10:13Z |
| format | Article |
| id | doaj.art-e78e31644d974d07a44216d336353680 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T10:10:13Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-e78e31644d974d07a44216d3363536802023-11-22T01:15:21ZengMDPI AGJournal of Marine Science and Engineering2077-13122021-06-019768610.3390/jmse9070686Deep-Water Cartilaginous Fishes in the Central Mediterranean Sea: Comparison between Geographic Areas with Two Low Impact Tools for SamplingAngela Carluccio0Francesca Capezzuto1Porzia Maiorano2Letizia Sion3Gianfranco D’Onghia4Department of Biology, University of Bari Aldo Moro, Via Orabona, 4-70125 Bari, ItalyDepartment of Biology, University of Bari Aldo Moro, Via Orabona, 4-70125 Bari, ItalyDepartment of Biology, University of Bari Aldo Moro, Via Orabona, 4-70125 Bari, ItalyDepartment of Biology, University of Bari Aldo Moro, Via Orabona, 4-70125 Bari, ItalyDepartment of Biology, University of Bari Aldo Moro, Via Orabona, 4-70125 Bari, ItalyBaited lander represents a low impact technique, an alternative to the traditional trawl sampling for collecting data on fish diversity and abundance, especially for threatened species such as Chondrichthyes living in sensitive habitats. In this study, distribution and abundance of cartilaginous fish were compared between two geographic areas, the southern Adriatic Sea and the north-western Ionian Sea, with two low impact sampling gears, an experimental bottom longline and a baited lander. Species diversity was evaluated by applying ecological indices and difference in mean abundances were tested using multivariate analysis. A total of 13 species of cartilaginous fish were collected. Significant differences in the assemblage recorded in the same area using different sampling tools were detected and no significant differences were detected among different areas explored with the same method. Using longline, the most abundant species collected in both areas was <i>Galeus melastomus</i>, while using lander, the most observed species were <i>Dalatias licha</i> in the southern Adriatic Sea and <i>Hexanchus griseus</i> in the north-western Ionian Sea. According to IUCN classification, of the 13 species collected, 2 are near threatened and 5 are threatened. A better governance of sensitive habitats coinciding with the essential fish habitat for these species would ensure them a better conservation status.https://www.mdpi.com/2077-1312/9/7/686cartilaginous fishbaited landerlonglineMediterranean Sea |
| spellingShingle | Angela Carluccio Francesca Capezzuto Porzia Maiorano Letizia Sion Gianfranco D’Onghia Deep-Water Cartilaginous Fishes in the Central Mediterranean Sea: Comparison between Geographic Areas with Two Low Impact Tools for Sampling Journal of Marine Science and Engineering cartilaginous fish baited lander longline Mediterranean Sea |
| title | Deep-Water Cartilaginous Fishes in the Central Mediterranean Sea: Comparison between Geographic Areas with Two Low Impact Tools for Sampling |
| title_full | Deep-Water Cartilaginous Fishes in the Central Mediterranean Sea: Comparison between Geographic Areas with Two Low Impact Tools for Sampling |
| title_fullStr | Deep-Water Cartilaginous Fishes in the Central Mediterranean Sea: Comparison between Geographic Areas with Two Low Impact Tools for Sampling |
| title_full_unstemmed | Deep-Water Cartilaginous Fishes in the Central Mediterranean Sea: Comparison between Geographic Areas with Two Low Impact Tools for Sampling |
| title_short | Deep-Water Cartilaginous Fishes in the Central Mediterranean Sea: Comparison between Geographic Areas with Two Low Impact Tools for Sampling |
| title_sort | deep water cartilaginous fishes in the central mediterranean sea comparison between geographic areas with two low impact tools for sampling |
| topic | cartilaginous fish baited lander longline Mediterranean Sea |
| url | https://www.mdpi.com/2077-1312/9/7/686 |
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