Larval abundance and spat collection of the lion’s paw scallop Nodipecten subnodosus in Ojo de Liebre Lagoon, Baja California Sur, Mexico
Large numbers of spat of giant lion’s paw scallop Nodipecten subnodosus are required for the development of the scallop aquaculture industry. Despite the large adult populations of this species in Ojo de Liebre Lagoon, Baja California Sur, Mexico, attempts to collect spat with onion bag collectors...
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| Format: | Article |
| Language: | English |
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Universidad Autónoma de Baja California
2010-11-01
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| Series: | Ciencias Marinas |
| Subjects: | |
| Online Access: | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1772 |
| _version_ | 1797279461368922112 |
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| author | R Maguino-Napurí AN Maeda-Martínez T Moctezuma-Cano G Valle-Meza H Acosta-Salmón |
| author_facet | R Maguino-Napurí AN Maeda-Martínez T Moctezuma-Cano G Valle-Meza H Acosta-Salmón |
| author_sort | R Maguino-Napurí |
| collection | DOAJ |
| description |
Large numbers of spat of giant lion’s paw scallop Nodipecten subnodosus are required for the development of the scallop aquaculture industry. Despite the large adult populations of this species in Ojo de Liebre Lagoon, Baja California Sur, Mexico, attempts to collect spat with onion bag collectors during the reproductive season (September–November) have not been successful. We assessed lion’s paw spatfall at three sites (La Ventana, El Conchalito, and El Borbollón) within the lagoon, where high recruitment was previously recorded. Netlon collectors instead of onion bags were used and they were deployed at each site at a depth of 1 m on two occasions (October and November 2007) when pediveliger larvae were more abundant. Collectors were retrieved and evaluated in February 2008, after being submerged for 118 or 82 days. Pediveliger larvae were present from late September to late November at all three sites. Densities peaked at 1 m in mid-November and were significantly higher at La Ventana, accounting for 12,400 larvae m–3. Collectors installed in October at El Conchalito showed higher (P < 0.05) mean recruitment (1.7 ± 0.2 spat per collector) than collectors set in November (0.4 ± 0.3 spat per collector). Collectors installed in October and November at La Ventana had 0.6 ± 0.3 and 0.9 ± 0.2 spat per collector, respectively. No significant differences were observed in the growth rates of the juveniles collected. High densities of larvae in the plankton during November indicated that high reproductive activity occurred earlier that month or in late October. La Ventana showed the highest potential for spat collection based on larval abundance, followed by El Borbollón and El Conchalito; however, El Conchalito showed the highest spat recruitment, followed by La Ventana and El Borbollón. Since spat collection was relatively low at all sites, more efforts to determine better collection sites and techniques, as well as appropriate deployment times are required.
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| first_indexed | 2024-03-07T16:25:41Z |
| format | Article |
| id | doaj.art-5d48822322da4b2b99ccc5dbd2f23583 |
| institution | Directory Open Access Journal |
| issn | 0185-3880 2395-9053 |
| language | English |
| last_indexed | 2024-03-07T16:25:41Z |
| publishDate | 2010-11-01 |
| publisher | Universidad Autónoma de Baja California |
| record_format | Article |
| series | Ciencias Marinas |
| spelling | doaj.art-5d48822322da4b2b99ccc5dbd2f235832024-03-03T18:02:21ZengUniversidad Autónoma de Baja CaliforniaCiencias Marinas0185-38802395-90532010-11-0137110.7773/cm.v37i1.1772Larval abundance and spat collection of the lion’s paw scallop Nodipecten subnodosus in Ojo de Liebre Lagoon, Baja California Sur, MexicoR Maguino-Napurí0AN Maeda-Martínez1T Moctezuma-Cano2G Valle-Meza3H Acosta-Salmón4Centro de Investigaciones Biológicas del NoroesteCentro de Investigaciones Biológicas del NoroesteCentro de Investigaciones Biológicas del NoroesteCentro de Investigaciones Biológicas del NoroesteCentro de Investigaciones Biológicas del Noroeste Large numbers of spat of giant lion’s paw scallop Nodipecten subnodosus are required for the development of the scallop aquaculture industry. Despite the large adult populations of this species in Ojo de Liebre Lagoon, Baja California Sur, Mexico, attempts to collect spat with onion bag collectors during the reproductive season (September–November) have not been successful. We assessed lion’s paw spatfall at three sites (La Ventana, El Conchalito, and El Borbollón) within the lagoon, where high recruitment was previously recorded. Netlon collectors instead of onion bags were used and they were deployed at each site at a depth of 1 m on two occasions (October and November 2007) when pediveliger larvae were more abundant. Collectors were retrieved and evaluated in February 2008, after being submerged for 118 or 82 days. Pediveliger larvae were present from late September to late November at all three sites. Densities peaked at 1 m in mid-November and were significantly higher at La Ventana, accounting for 12,400 larvae m–3. Collectors installed in October at El Conchalito showed higher (P < 0.05) mean recruitment (1.7 ± 0.2 spat per collector) than collectors set in November (0.4 ± 0.3 spat per collector). Collectors installed in October and November at La Ventana had 0.6 ± 0.3 and 0.9 ± 0.2 spat per collector, respectively. No significant differences were observed in the growth rates of the juveniles collected. High densities of larvae in the plankton during November indicated that high reproductive activity occurred earlier that month or in late October. La Ventana showed the highest potential for spat collection based on larval abundance, followed by El Borbollón and El Conchalito; however, El Conchalito showed the highest spat recruitment, followed by La Ventana and El Borbollón. Since spat collection was relatively low at all sites, more efforts to determine better collection sites and techniques, as well as appropriate deployment times are required. https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1772Nodipecten subnodosuspediveliger larvaerecruitmentscallopssettlement |
| spellingShingle | R Maguino-Napurí AN Maeda-Martínez T Moctezuma-Cano G Valle-Meza H Acosta-Salmón Larval abundance and spat collection of the lion’s paw scallop Nodipecten subnodosus in Ojo de Liebre Lagoon, Baja California Sur, Mexico Ciencias Marinas Nodipecten subnodosus pediveliger larvae recruitment scallops settlement |
| title | Larval abundance and spat collection of the lion’s paw scallop Nodipecten subnodosus in Ojo de Liebre Lagoon, Baja California Sur, Mexico |
| title_full | Larval abundance and spat collection of the lion’s paw scallop Nodipecten subnodosus in Ojo de Liebre Lagoon, Baja California Sur, Mexico |
| title_fullStr | Larval abundance and spat collection of the lion’s paw scallop Nodipecten subnodosus in Ojo de Liebre Lagoon, Baja California Sur, Mexico |
| title_full_unstemmed | Larval abundance and spat collection of the lion’s paw scallop Nodipecten subnodosus in Ojo de Liebre Lagoon, Baja California Sur, Mexico |
| title_short | Larval abundance and spat collection of the lion’s paw scallop Nodipecten subnodosus in Ojo de Liebre Lagoon, Baja California Sur, Mexico |
| title_sort | larval abundance and spat collection of the lion s paw scallop nodipecten subnodosus in ojo de liebre lagoon baja california sur mexico |
| topic | Nodipecten subnodosus pediveliger larvae recruitment scallops settlement |
| url | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1772 |
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