Reproductive biology and relative growth in the spider crab Maja crispata (Crustacea: Brachyura: Majidae)
A series of life-history traits in the spider crab Maja crispata were studied on the island of Ischia (Italy) during four sampling periods in 1982: sex ratio, relative growth, sexual maturity, reproductive season, number of eggs per female, copulation and brood sequence. A total of 104 males and 86...
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| Format: | Article |
| Language: | English |
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Consejo Superior de Investigaciones Científicas
2003-03-01
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| Series: | Scientia Marina |
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| Online Access: | http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/455 |
| _version_ | 1819095436276793344 |
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| author | Carlos A. Carmona-Suárez |
| author_facet | Carlos A. Carmona-Suárez |
| author_sort | Carlos A. Carmona-Suárez |
| collection | DOAJ |
| description | A series of life-history traits in the spider crab Maja crispata were studied on the island of Ischia (Italy) during four sampling periods in 1982: sex ratio, relative growth, sexual maturity, reproductive season, number of eggs per female, copulation and brood sequence. A total of 104 males and 86 females were captured. Mature animals were present year around. The greatest relative abundance of mature animals in both sexes was found in the warmer season. Three postlarval growth stages were distinguishable in males: crabs with juvenile morphological characteristics and immature gonads (between 1.69 and 5.03 cm carapace length), crabs with juvenile morphological characteristics and mature gonads (between 3.59 and 6.11) and crabs with adult morphological characteristics and mature gonads (between 4.98 and 7.16). In females, only two postlarval stages were detected: juveniles (between 1.87 and 4.62) and adults (between 3.56 and 6.11). Mature females with full seminal receptacles were always present. Breeding period extends from May to September. Mean number of eggs was 11473 per female. Breeding sequences in two females kept in the laboratory varied between 5 and 7 broods per year, at intervals of between 21 and 32 days. |
| first_indexed | 2024-12-21T23:43:16Z |
| format | Article |
| id | doaj.art-fb80b98b26934a88bef79164b4703769 |
| institution | Directory Open Access Journal |
| issn | 0214-8358 1886-8134 |
| language | English |
| last_indexed | 2024-12-21T23:43:16Z |
| publishDate | 2003-03-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Scientia Marina |
| spelling | doaj.art-fb80b98b26934a88bef79164b47037692022-12-21T18:46:10ZengConsejo Superior de Investigaciones CientíficasScientia Marina0214-83581886-81342003-03-01671758010.3989/scimar.2003.67n175450Reproductive biology and relative growth in the spider crab Maja crispata (Crustacea: Brachyura: Majidae)Carlos A. Carmona-Suárez0Centro de Ecología, Instituto Venezolano de Investigaciones Científicas (IVIC)A series of life-history traits in the spider crab Maja crispata were studied on the island of Ischia (Italy) during four sampling periods in 1982: sex ratio, relative growth, sexual maturity, reproductive season, number of eggs per female, copulation and brood sequence. A total of 104 males and 86 females were captured. Mature animals were present year around. The greatest relative abundance of mature animals in both sexes was found in the warmer season. Three postlarval growth stages were distinguishable in males: crabs with juvenile morphological characteristics and immature gonads (between 1.69 and 5.03 cm carapace length), crabs with juvenile morphological characteristics and mature gonads (between 3.59 and 6.11) and crabs with adult morphological characteristics and mature gonads (between 4.98 and 7.16). In females, only two postlarval stages were detected: juveniles (between 1.87 and 4.62) and adults (between 3.56 and 6.11). Mature females with full seminal receptacles were always present. Breeding period extends from May to September. Mean number of eggs was 11473 per female. Breeding sequences in two females kept in the laboratory varied between 5 and 7 broods per year, at intervals of between 21 and 32 days.http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/455crustaceabrachyuraspider crabsmaja crispatareproductionrelative growthmediterranean sea |
| spellingShingle | Carlos A. Carmona-Suárez Reproductive biology and relative growth in the spider crab Maja crispata (Crustacea: Brachyura: Majidae) Scientia Marina crustacea brachyura spider crabs maja crispata reproduction relative growth mediterranean sea |
| title | Reproductive biology and relative growth in the spider crab Maja crispata (Crustacea: Brachyura: Majidae) |
| title_full | Reproductive biology and relative growth in the spider crab Maja crispata (Crustacea: Brachyura: Majidae) |
| title_fullStr | Reproductive biology and relative growth in the spider crab Maja crispata (Crustacea: Brachyura: Majidae) |
| title_full_unstemmed | Reproductive biology and relative growth in the spider crab Maja crispata (Crustacea: Brachyura: Majidae) |
| title_short | Reproductive biology and relative growth in the spider crab Maja crispata (Crustacea: Brachyura: Majidae) |
| title_sort | reproductive biology and relative growth in the spider crab maja crispata crustacea brachyura majidae |
| topic | crustacea brachyura spider crabs maja crispata reproduction relative growth mediterranean sea |
| url | http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/455 |
| work_keys_str_mv | AT carlosacarmonasuarez reproductivebiologyandrelativegrowthinthespidercrabmajacrispatacrustaceabrachyuramajidae |