Latitudinal variation in the reproductive cycle of two bivalves with contrasting biogeographical origin along the Humboldt Current Upwelling Ecosystem
Argopecten purpuratus (Lamarck, 1819) and Mesodesma donacium (Lamarck, 1818) are bivalves that inhabit the Humboldt Current Upwelling Ecosystem. They have contrasting biogeographical origins, suggesting that their responses to exogenous factors should differ. Using circular statistics, we examine sy...
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| Format: | Article |
| Language: | English |
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Consejo Superior de Investigaciones Científicas
2012-12-01
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| Series: | Scientia Marina |
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| Online Access: | http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1404 |
| _version_ | 1818961095629471744 |
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| author | Roberto A. Uribe Marcelo E. Oliva Silvia Aguilar Carmen Yamashiro José M. Riascos |
| author_facet | Roberto A. Uribe Marcelo E. Oliva Silvia Aguilar Carmen Yamashiro José M. Riascos |
| author_sort | Roberto A. Uribe |
| collection | DOAJ |
| description | Argopecten purpuratus (Lamarck, 1819) and Mesodesma donacium (Lamarck, 1818) are bivalves that inhabit the Humboldt Current Upwelling Ecosystem. They have contrasting biogeographical origins, suggesting that their responses to exogenous factors should differ. Using circular statistics, we examine synchrony/asynchrony in the reproductive cycle between populations of each species. The results indicate that there is reproductive asynchrony in both species along their distributional range. However, there was synchrony for A. purpuratus in several location-pairs, including Paita-Chimbote, Chimbote-Callao, Callao-Pisco and Pisco-Antofagasta. For M. donacium, there were only two synchronic groups: Camaná-Capellanía-Mehuín and Hornitos-Peñuelas-Longotoma-La Ligua-Cucao-Quilanlar. A. purpuratus showed gametogenenic activity throughout the year. In contrast, M. donacium showed strong seasonality, with gametogenesis in winter and spawning in spring/summer. In conclusion, the patterns observed for these sympatric species suggest that on a large scale the reproductive cycles follow the expected patterns for the contrasting biogeographic origin of each species, so it could be argued that they are modulated by endogenous factors. However, at a local scale, the reproductive cycles of these species show variation, likely determined by local oceanographic or hydrographic processes. |
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| id | doaj.art-8ce721a8f543478288dc15902b7b38e9 |
| institution | Directory Open Access Journal |
| issn | 0214-8358 1886-8134 |
| language | English |
| last_indexed | 2024-12-20T12:07:59Z |
| publishDate | 2012-12-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Scientia Marina |
| spelling | doaj.art-8ce721a8f543478288dc15902b7b38e92022-12-21T19:41:20ZengConsejo Superior de Investigaciones CientíficasScientia Marina0214-83581886-81342012-12-0176471372010.3989/scimar.03480.26D1385Latitudinal variation in the reproductive cycle of two bivalves with contrasting biogeographical origin along the Humboldt Current Upwelling EcosystemRoberto A. Uribe0Marcelo E. Oliva1Silvia Aguilar2Carmen Yamashiro3José M. Riascos4Programa de Doctorado en Ciencias Aplicadas Mención Sistemas Marinos Costeros, Universidad de AntofagastaInstituto de Investigaciones Oceanológicas, Universidad de AntofagastaInstituto del Mar del PerúInstituto del Mar del PerúInstituto de Investigaciones Oceanológicas, Universidad de AntofagastaArgopecten purpuratus (Lamarck, 1819) and Mesodesma donacium (Lamarck, 1818) are bivalves that inhabit the Humboldt Current Upwelling Ecosystem. They have contrasting biogeographical origins, suggesting that their responses to exogenous factors should differ. Using circular statistics, we examine synchrony/asynchrony in the reproductive cycle between populations of each species. The results indicate that there is reproductive asynchrony in both species along their distributional range. However, there was synchrony for A. purpuratus in several location-pairs, including Paita-Chimbote, Chimbote-Callao, Callao-Pisco and Pisco-Antofagasta. For M. donacium, there were only two synchronic groups: Camaná-Capellanía-Mehuín and Hornitos-Peñuelas-Longotoma-La Ligua-Cucao-Quilanlar. A. purpuratus showed gametogenenic activity throughout the year. In contrast, M. donacium showed strong seasonality, with gametogenesis in winter and spawning in spring/summer. In conclusion, the patterns observed for these sympatric species suggest that on a large scale the reproductive cycles follow the expected patterns for the contrasting biogeographic origin of each species, so it could be argued that they are modulated by endogenous factors. However, at a local scale, the reproductive cycles of these species show variation, likely determined by local oceanographic or hydrographic processes.http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1404mesodesma donaciumargopecten purpuratussynchronic reproductiongametogenesisexogenous factorscircular statistics |
| spellingShingle | Roberto A. Uribe Marcelo E. Oliva Silvia Aguilar Carmen Yamashiro José M. Riascos Latitudinal variation in the reproductive cycle of two bivalves with contrasting biogeographical origin along the Humboldt Current Upwelling Ecosystem Scientia Marina mesodesma donacium argopecten purpuratus synchronic reproduction gametogenesis exogenous factors circular statistics |
| title | Latitudinal variation in the reproductive cycle of two bivalves with contrasting biogeographical origin along the Humboldt Current Upwelling Ecosystem |
| title_full | Latitudinal variation in the reproductive cycle of two bivalves with contrasting biogeographical origin along the Humboldt Current Upwelling Ecosystem |
| title_fullStr | Latitudinal variation in the reproductive cycle of two bivalves with contrasting biogeographical origin along the Humboldt Current Upwelling Ecosystem |
| title_full_unstemmed | Latitudinal variation in the reproductive cycle of two bivalves with contrasting biogeographical origin along the Humboldt Current Upwelling Ecosystem |
| title_short | Latitudinal variation in the reproductive cycle of two bivalves with contrasting biogeographical origin along the Humboldt Current Upwelling Ecosystem |
| title_sort | latitudinal variation in the reproductive cycle of two bivalves with contrasting biogeographical origin along the humboldt current upwelling ecosystem |
| topic | mesodesma donacium argopecten purpuratus synchronic reproduction gametogenesis exogenous factors circular statistics |
| url | http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1404 |
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