Female reproductive cycle of the Southwestern Atlantic estuarine crab Chasmagnathus granulatus (Brachyura, Grapsoidea, Varunidae)
The female reproductive biology of a Chasmagnathus granulatus population inhabiting the area near the mouth of Mar Chiquita coastal lagoon, Argentina, was studied. An increase in air temperature during the spring is related to the start of the breeding period, when well defined egg-laying and hatchi...
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| Format: | Article |
| Language: | English |
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Consejo Superior de Investigaciones Científicas
2004-03-01
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| Series: | Scientia Marina |
| Subjects: | |
| Online Access: | http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/350 |
| _version_ | 1818599094963142656 |
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| author | Romina B. Ituarte Eduardo D. Spivak Tomás A. Luppi |
| author_facet | Romina B. Ituarte Eduardo D. Spivak Tomás A. Luppi |
| author_sort | Romina B. Ituarte |
| collection | DOAJ |
| description | The female reproductive biology of a Chasmagnathus granulatus population inhabiting the area near the mouth of Mar Chiquita coastal lagoon, Argentina, was studied. An increase in air temperature during the spring is related to the start of the breeding period, when well defined egg-laying and hatching pulses were observed. Hatching is synchronic during the whole summer but the egg production was not, probably due to the gradual incorporation of young females to the reproductive population. Neither egg-laying nor larval release showed a clear relation to moon phase or tidal cycles, suggesting that reproduction is not rigidly programmed in this unpredictable habitat. Females moult at the beginning of autumn, after releasing the last larvae. However, a new cohort of ovocytes, which was in primary vitellogenesis before moulting, completed the secondary ovogenesis after moulting. Consequently, ovaries remained fully developed throughout the winter. |
| first_indexed | 2024-12-16T12:14:08Z |
| format | Article |
| id | doaj.art-8a5dfa126bb044e88f59ec5d701d1603 |
| institution | Directory Open Access Journal |
| issn | 0214-8358 1886-8134 |
| language | English |
| last_indexed | 2024-12-16T12:14:08Z |
| publishDate | 2004-03-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Scientia Marina |
| spelling | doaj.art-8a5dfa126bb044e88f59ec5d701d16032022-12-21T22:32:09ZengConsejo Superior de Investigaciones CientíficasScientia Marina0214-83581886-81342004-03-0168112713710.3989/scimar.2004.68n1127346Female reproductive cycle of the Southwestern Atlantic estuarine crab Chasmagnathus granulatus (Brachyura, Grapsoidea, Varunidae)Romina B. Ituarte0Eduardo D. Spivak1Tomás A. Luppi2Departamento de Biología, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del PlataDepartamento de Biología, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del PlataDepartamento de Biología, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del PlataThe female reproductive biology of a Chasmagnathus granulatus population inhabiting the area near the mouth of Mar Chiquita coastal lagoon, Argentina, was studied. An increase in air temperature during the spring is related to the start of the breeding period, when well defined egg-laying and hatching pulses were observed. Hatching is synchronic during the whole summer but the egg production was not, probably due to the gradual incorporation of young females to the reproductive population. Neither egg-laying nor larval release showed a clear relation to moon phase or tidal cycles, suggesting that reproduction is not rigidly programmed in this unpredictable habitat. Females moult at the beginning of autumn, after releasing the last larvae. However, a new cohort of ovocytes, which was in primary vitellogenesis before moulting, completed the secondary ovogenesis after moulting. Consequently, ovaries remained fully developed throughout the winter.http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/350chasmagnathus granulatusbreeding cycleshepatosomatic indexgonadosomatic indexhatching |
| spellingShingle | Romina B. Ituarte Eduardo D. Spivak Tomás A. Luppi Female reproductive cycle of the Southwestern Atlantic estuarine crab Chasmagnathus granulatus (Brachyura, Grapsoidea, Varunidae) Scientia Marina chasmagnathus granulatus breeding cycles hepatosomatic index gonadosomatic index hatching |
| title | Female reproductive cycle of the Southwestern Atlantic estuarine crab Chasmagnathus granulatus (Brachyura, Grapsoidea, Varunidae) |
| title_full | Female reproductive cycle of the Southwestern Atlantic estuarine crab Chasmagnathus granulatus (Brachyura, Grapsoidea, Varunidae) |
| title_fullStr | Female reproductive cycle of the Southwestern Atlantic estuarine crab Chasmagnathus granulatus (Brachyura, Grapsoidea, Varunidae) |
| title_full_unstemmed | Female reproductive cycle of the Southwestern Atlantic estuarine crab Chasmagnathus granulatus (Brachyura, Grapsoidea, Varunidae) |
| title_short | Female reproductive cycle of the Southwestern Atlantic estuarine crab Chasmagnathus granulatus (Brachyura, Grapsoidea, Varunidae) |
| title_sort | female reproductive cycle of the southwestern atlantic estuarine crab chasmagnathus granulatus brachyura grapsoidea varunidae |
| topic | chasmagnathus granulatus breeding cycles hepatosomatic index gonadosomatic index hatching |
| url | http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/350 |
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