Distribution and population structure of the pelagic stingray, Pteroplatytrygon violacea (Dasyatidae), in the south-western Atlantic
The present study analyses the spatial and temporal distribution of the pelagic stingray (Pteroplatytrygon violacea) in the south-western Atlantic Ocean, based on data collected between April 1998 and March 2006 by the National Observers Program of the Uruguayan Tuna Fleet. During this period, data...
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| Veröffentlicht in: | Aquatic living resources (Montrouge) 2008-10, Vol.21 (4), p.357-363 |
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| creator | Forselledo, Rodrigo Pons, Maite Miller, Philip Domingo, Andrés |
| description | The present study analyses the spatial and temporal distribution of the pelagic stingray (Pteroplatytrygon violacea) in the south-western Atlantic Ocean, based on data collected between April 1998 and March 2006 by the National Observers Program of the Uruguayan Tuna Fleet. During this period, data were recorded on 51 commercial fishing trips, in which a total of 2 306 851 hooks were set and 2740 stingrays captured. Of these, the sex was determined for 1329 individuals and the size for 944. The average disc width was 47 ± 8 cm (range: 24–82 cm) for females and 44 ± 5 cm (range: 28–84 cm) for males. The results indicate that the species seems to prefer warm temperate and tropical waters. There were no capture records in waters at |
| doi_str_mv | 10.1051/alr:2008052 |
| format | Article |
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Cette étude analyse la distribution spatio-temporelle de la pastenague pélagique (Pteroplatytrygon violacea) dans l'océan Atlantique sud-ouest, basée sur des données collectées entre avril 1998 et mars 2006 par le Programme national d'observations de la flotte thonière uruguayenne. Durant cette période, les données de 51 sorties de pêche commerciale ont été enregistrées, et pour lesquelles, un total de 2 306 851 hameçons ont été examinés et 2740 pastenagues capturées. Le sexe a été déterminé sur 1329 individus et la taille d'après 944 individus. La largeur moyenne du disque est pour les femelles de 47 ± 8 cm (gamme de taille : 24–82 cm) et pour les mâles de 44 ± 5 cm (28–84 cm). Les résultats indiquent que cette espèce semble préférer les eaux chaudes tempérées et les eaux tropicales. Il n'y a pas de captures dans des eaux inférieures à 15.3 °C. Les données collectées laissent présumer que l'accouplement s'effectue à la fin du printemps austral avec une période de gestation de 2 à 4 mois, et les naissances durant la fin de l'été et le début de l'automne. L'augmentation des captures accessoires de cette espèce ovovivipare par les pêches palangrières pélagiques, avec un taux de survie inconnu au niveau des palangres, couplé à un faible potentiel de reproduction, appellent à un meilleur contrôle afin de déterminer de façon plus précise son statut actuel de conservation.</description><identifier>ISSN: 0990-7440</identifier><identifier>EISSN: 1765-2952</identifier><identifier>DOI: 10.1051/alr:2008052</identifier><language>eng</language><publisher>Paris: EDP Sciences</publisher><subject>Agnatha. Pisces ; Animal, plant and microbial ecology ; Applied ecology ; Biological and medical sciences ; CPUE ; Dasyatidae ; Distribution ; Exploitation and management of natural biological resources (hunting, fishing and exploited populations survey, etc.) ; Fundamental and applied biological sciences. Psychology ; Marine ; Pelagic stingray ; Pteroplatytrygon violacea ; Reproduction ; SW Atlantic Ocean ; Thunnus ; Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution</subject><ispartof>Aquatic living resources (Montrouge), 2008-10, Vol.21 (4), p.357-363</ispartof><rights>2009 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c466t-3434c8fed2e473295e0738bc54a5e3e4f48e9246a9b5be8d85162f456a81a3e93</citedby><cites>FETCH-LOGICAL-c466t-3434c8fed2e473295e0738bc54a5e3e4f48e9246a9b5be8d85162f456a81a3e93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20904299$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Forselledo, Rodrigo</creatorcontrib><creatorcontrib>Pons, Maite</creatorcontrib><creatorcontrib>Miller, Philip</creatorcontrib><creatorcontrib>Domingo, Andrés</creatorcontrib><title>Distribution and population structure of the pelagic stingray, Pteroplatytrygon violacea (Dasyatidae), in the south-western Atlantic</title><title>Aquatic living resources (Montrouge)</title><description>The present study analyses the spatial and temporal distribution of the pelagic stingray (Pteroplatytrygon violacea) in the south-western Atlantic Ocean, based on data collected between April 1998 and March 2006 by the National Observers Program of the Uruguayan Tuna Fleet. During this period, data were recorded on 51 commercial fishing trips, in which a total of 2 306 851 hooks were set and 2740 stingrays captured. Of these, the sex was determined for 1329 individuals and the size for 944. The average disc width was 47 ± 8 cm (range: 24–82 cm) for females and 44 ± 5 cm (range: 28–84 cm) for males. The results indicate that the species seems to prefer warm temperate and tropical waters. There were no capture records in waters at <15.3 °C. The data collected suggest a mating season in late spring with a gestation period of 2 to 4 months and births occurring during late summer and early autumn. The increasing bycatch of this ovoviviparous species in pelagic longline fisheries, with an unknown survival rate after discard, coupled to its low reproductive potential, call for better monitoring in order to accurately determine its current conservation status.
Cette étude analyse la distribution spatio-temporelle de la pastenague pélagique (Pteroplatytrygon violacea) dans l'océan Atlantique sud-ouest, basée sur des données collectées entre avril 1998 et mars 2006 par le Programme national d'observations de la flotte thonière uruguayenne. Durant cette période, les données de 51 sorties de pêche commerciale ont été enregistrées, et pour lesquelles, un total de 2 306 851 hameçons ont été examinés et 2740 pastenagues capturées. Le sexe a été déterminé sur 1329 individus et la taille d'après 944 individus. La largeur moyenne du disque est pour les femelles de 47 ± 8 cm (gamme de taille : 24–82 cm) et pour les mâles de 44 ± 5 cm (28–84 cm). Les résultats indiquent que cette espèce semble préférer les eaux chaudes tempérées et les eaux tropicales. Il n'y a pas de captures dans des eaux inférieures à 15.3 °C. Les données collectées laissent présumer que l'accouplement s'effectue à la fin du printemps austral avec une période de gestation de 2 à 4 mois, et les naissances durant la fin de l'été et le début de l'automne. L'augmentation des captures accessoires de cette espèce ovovivipare par les pêches palangrières pélagiques, avec un taux de survie inconnu au niveau des palangres, couplé à un faible potentiel de reproduction, appellent à un meilleur contrôle afin de déterminer de façon plus précise son statut actuel de conservation.</description><subject>Agnatha. Pisces</subject><subject>Animal, plant and microbial ecology</subject><subject>Applied ecology</subject><subject>Biological and medical sciences</subject><subject>CPUE</subject><subject>Dasyatidae</subject><subject>Distribution</subject><subject>Exploitation and management of natural biological resources (hunting, fishing and exploited populations survey, etc.)</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Marine</subject><subject>Pelagic stingray</subject><subject>Pteroplatytrygon violacea</subject><subject>Reproduction</subject><subject>SW Atlantic Ocean</subject><subject>Thunnus</subject><subject>Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution</subject><issn>0990-7440</issn><issn>1765-2952</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqFkUtv1DAUhS0EEkNhxR_wBgRqA34mDruqpZ1WlUA8hMTGuuO5mRrSOLUdIHt-OJ7OqFtWV1fnnE_XPoQ85-wNZ5q_hT6-E4wZpsUDsuBNrSvRavGQLFjbsqpRij0mT1L6wRgXpqkX5O-pTzn61ZR9GCgMazqGcerhbi3K5PIUkYaO5mukI_aw8a4IfthEmI_ox4wxjMU_5zhvSuaXDz04BPrqFNJcOGvA10fUD3eAFKZ8Xf3GVGIDPc49DNm7p-RRB33CZ_t5QL6evf9ysqyuPpxfnBxfVU7Vda6kksqZDtcCVSPLw5A10qycVqBRouqUwVaoGtqVXqFZG81r0Sldg-EgsZUH5OWOO8ZwO5Uj7I1PDvtyBYYpWanLn5jW_NcoGOfS1Fvi4c7oYkgpYmfH6G8gzpYzu63ElkrsvpLifrHHQnLQdxEG59N9RLCWKdFuqdXOV7rBP_c6xJ-2bmSjrWHf7PLz8vv5Jf9kz-Q_SHOdcQ</recordid><startdate>20081001</startdate><enddate>20081001</enddate><creator>Forselledo, Rodrigo</creator><creator>Pons, Maite</creator><creator>Miller, Philip</creator><creator>Domingo, Andrés</creator><general>EDP Sciences</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TN</scope><scope>8FD</scope><scope>F1W</scope><scope>FR3</scope><scope>H95</scope><scope>H98</scope><scope>H99</scope><scope>L.F</scope><scope>L.G</scope><scope>P64</scope><scope>KR7</scope></search><sort><creationdate>20081001</creationdate><title>Distribution and population structure of the pelagic stingray, Pteroplatytrygon violacea (Dasyatidae), in the south-western Atlantic</title><author>Forselledo, Rodrigo ; Pons, Maite ; Miller, Philip ; Domingo, Andrés</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c466t-3434c8fed2e473295e0738bc54a5e3e4f48e9246a9b5be8d85162f456a81a3e93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Agnatha. 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Psychology</topic><topic>Marine</topic><topic>Pelagic stingray</topic><topic>Pteroplatytrygon violacea</topic><topic>Reproduction</topic><topic>SW Atlantic Ocean</topic><topic>Thunnus</topic><topic>Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Forselledo, Rodrigo</creatorcontrib><creatorcontrib>Pons, Maite</creatorcontrib><creatorcontrib>Miller, Philip</creatorcontrib><creatorcontrib>Domingo, Andrés</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Oceanic Abstracts</collection><collection>Technology Research Database</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Aquaculture Abstracts</collection><collection>ASFA: Marine Biotechnology Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Marine Biotechnology Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Civil Engineering Abstracts</collection><jtitle>Aquatic living resources (Montrouge)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Forselledo, Rodrigo</au><au>Pons, Maite</au><au>Miller, Philip</au><au>Domingo, Andrés</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Distribution and population structure of the pelagic stingray, Pteroplatytrygon violacea (Dasyatidae), in the south-western Atlantic</atitle><jtitle>Aquatic living resources (Montrouge)</jtitle><date>2008-10-01</date><risdate>2008</risdate><volume>21</volume><issue>4</issue><spage>357</spage><epage>363</epage><pages>357-363</pages><issn>0990-7440</issn><eissn>1765-2952</eissn><abstract>The present study analyses the spatial and temporal distribution of the pelagic stingray (Pteroplatytrygon violacea) in the south-western Atlantic Ocean, based on data collected between April 1998 and March 2006 by the National Observers Program of the Uruguayan Tuna Fleet. During this period, data were recorded on 51 commercial fishing trips, in which a total of 2 306 851 hooks were set and 2740 stingrays captured. Of these, the sex was determined for 1329 individuals and the size for 944. The average disc width was 47 ± 8 cm (range: 24–82 cm) for females and 44 ± 5 cm (range: 28–84 cm) for males. The results indicate that the species seems to prefer warm temperate and tropical waters. There were no capture records in waters at <15.3 °C. The data collected suggest a mating season in late spring with a gestation period of 2 to 4 months and births occurring during late summer and early autumn. The increasing bycatch of this ovoviviparous species in pelagic longline fisheries, with an unknown survival rate after discard, coupled to its low reproductive potential, call for better monitoring in order to accurately determine its current conservation status.
Cette étude analyse la distribution spatio-temporelle de la pastenague pélagique (Pteroplatytrygon violacea) dans l'océan Atlantique sud-ouest, basée sur des données collectées entre avril 1998 et mars 2006 par le Programme national d'observations de la flotte thonière uruguayenne. Durant cette période, les données de 51 sorties de pêche commerciale ont été enregistrées, et pour lesquelles, un total de 2 306 851 hameçons ont été examinés et 2740 pastenagues capturées. Le sexe a été déterminé sur 1329 individus et la taille d'après 944 individus. La largeur moyenne du disque est pour les femelles de 47 ± 8 cm (gamme de taille : 24–82 cm) et pour les mâles de 44 ± 5 cm (28–84 cm). Les résultats indiquent que cette espèce semble préférer les eaux chaudes tempérées et les eaux tropicales. Il n'y a pas de captures dans des eaux inférieures à 15.3 °C. Les données collectées laissent présumer que l'accouplement s'effectue à la fin du printemps austral avec une période de gestation de 2 à 4 mois, et les naissances durant la fin de l'été et le début de l'automne. L'augmentation des captures accessoires de cette espèce ovovivipare par les pêches palangrières pélagiques, avec un taux de survie inconnu au niveau des palangres, couplé à un faible potentiel de reproduction, appellent à un meilleur contrôle afin de déterminer de façon plus précise son statut actuel de conservation.</abstract><cop>Paris</cop><pub>EDP Sciences</pub><doi>10.1051/alr:2008052</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Aquatic living resources (Montrouge), 2008-10, Vol.21 (4), p.357-363 |
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| source | Open Access: EDP Open; Free E-Journal (出版社公開部分のみ） |
| subjects | Agnatha. Pisces Animal, plant and microbial ecology Applied ecology Biological and medical sciences CPUE Dasyatidae Distribution Exploitation and management of natural biological resources (hunting, fishing and exploited populations survey, etc.) Fundamental and applied biological sciences. Psychology Marine Pelagic stingray Pteroplatytrygon violacea Reproduction SW Atlantic Ocean Thunnus Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution |
| title | Distribution and population structure of the pelagic stingray, Pteroplatytrygon violacea (Dasyatidae), in the south-western Atlantic |
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