Population dynamics and reproductive strategy of Scolelepis goodbodyi (Polychaeta: Spionidae) in a subtropical atlantic beach
The population dynamics and reproductive strategy of the polychaete Scolelepis goodbodyi (Jones, 1962), were investigated between June 2009 and May 2010 at Manguinhos beach, southeastern, Brazil. A total of 9,242 individuals were collected. The density did not differ significantly from one month to...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Zoologia
2012-06-01
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| Series: | Zoologia (Curitiba) |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000300002 |
| _version_ | 1797968011106189312 |
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| author | Luciana S. Dourado Leão Abílio Soares-Gomes Tarso Costa Cinthya S. Gomes Santos |
| author_facet | Luciana S. Dourado Leão Abílio Soares-Gomes Tarso Costa Cinthya S. Gomes Santos |
| author_sort | Luciana S. Dourado Leão |
| collection | DOAJ |
| description | The population dynamics and reproductive strategy of the polychaete Scolelepis goodbodyi (Jones, 1962), were investigated between June 2009 and May 2010 at Manguinhos beach, southeastern, Brazil. A total of 9,242 individuals were collected. The density did not differ significantly from one month to another. The estimated values of the growth, recruitment, and mortality rates were studied using the width of the third setiger and the growth curves for the populations were adjusted by the Bhattacharya method (L'= 1.23, K = 1.2, mortality = 0.73). Two annual cohorts were identified in the period. Significant differences between males and females were observed in the population (x² = 71.6, p < 0.01) and between sexually defined and sexually indeterminate individuals (x² = 158.4, p < 0.01). Five stages of gonadal development were identified. The coexistence of recruits and mature individuals throughout the study period suggests that this population presented continuous reproduction. |
| first_indexed | 2024-04-11T02:40:18Z |
| format | Article |
| id | doaj.art-a92fb29da0eb4ec9b22d9fdfa2a8bbea |
| institution | Directory Open Access Journal |
| issn | 1984-4670 1984-4689 |
| language | English |
| last_indexed | 2024-04-11T02:40:18Z |
| publishDate | 2012-06-01 |
| publisher | Sociedade Brasileira de Zoologia |
| record_format | Article |
| series | Zoologia (Curitiba) |
| spelling | doaj.art-a92fb29da0eb4ec9b22d9fdfa2a8bbea2023-01-02T19:20:27ZengSociedade Brasileira de ZoologiaZoologia (Curitiba)1984-46701984-46892012-06-0129319520210.1590/S1984-46702012000300002Population dynamics and reproductive strategy of Scolelepis goodbodyi (Polychaeta: Spionidae) in a subtropical atlantic beachLuciana S. Dourado LeãoAbílio Soares-GomesTarso CostaCinthya S. Gomes SantosThe population dynamics and reproductive strategy of the polychaete Scolelepis goodbodyi (Jones, 1962), were investigated between June 2009 and May 2010 at Manguinhos beach, southeastern, Brazil. A total of 9,242 individuals were collected. The density did not differ significantly from one month to another. The estimated values of the growth, recruitment, and mortality rates were studied using the width of the third setiger and the growth curves for the populations were adjusted by the Bhattacharya method (L'= 1.23, K = 1.2, mortality = 0.73). Two annual cohorts were identified in the period. Significant differences between males and females were observed in the population (x² = 71.6, p < 0.01) and between sexually defined and sexually indeterminate individuals (x² = 158.4, p < 0.01). Five stages of gonadal development were identified. The coexistence of recruits and mature individuals throughout the study period suggests that this population presented continuous reproduction.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000300002Annelidapopulation ecologyreproductive biology |
| spellingShingle | Luciana S. Dourado Leão Abílio Soares-Gomes Tarso Costa Cinthya S. Gomes Santos Population dynamics and reproductive strategy of Scolelepis goodbodyi (Polychaeta: Spionidae) in a subtropical atlantic beach Zoologia (Curitiba) Annelida population ecology reproductive biology |
| title | Population dynamics and reproductive strategy of Scolelepis goodbodyi (Polychaeta: Spionidae) in a subtropical atlantic beach |
| title_full | Population dynamics and reproductive strategy of Scolelepis goodbodyi (Polychaeta: Spionidae) in a subtropical atlantic beach |
| title_fullStr | Population dynamics and reproductive strategy of Scolelepis goodbodyi (Polychaeta: Spionidae) in a subtropical atlantic beach |
| title_full_unstemmed | Population dynamics and reproductive strategy of Scolelepis goodbodyi (Polychaeta: Spionidae) in a subtropical atlantic beach |
| title_short | Population dynamics and reproductive strategy of Scolelepis goodbodyi (Polychaeta: Spionidae) in a subtropical atlantic beach |
| title_sort | population dynamics and reproductive strategy of scolelepis goodbodyi polychaeta spionidae in a subtropical atlantic beach |
| topic | Annelida population ecology reproductive biology |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000300002 |
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