- Title
- Population structure and growth of polydorid polychaetes that infest cultured abalone Haliotis midae
- Creator
- Simon, Carol A, Booth, Anthony J
- Date
- 2010
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/125731
- Identifier
- vital:35812
- Identifier
- https://doi.10.2989/AJMS.2007.29.3.16.346
- Description
- Polydorid polychaetes can infest cultured abalone thereby reducing productivity. In order to effectively control these pests, their reproductive biology must be understood. The population dynamics and reproduction of polydorids infesting abalone Haliotis midae from two farms in South Africa is described using a length-based, age-structured model. Shells were infested mainly by introduced Boccardia proboscidea. Polydora hoplura and Dipolydora capensis were also present but in numbers too few to identify factors influencing infestation. At both farms, B. proboscidea lived for a minimum of 12 months. Growth rate, size at maturity, maximum size, infestation intensity, recruitment, percentage of the population brooding and mortality appear to be affected by abalone feeding regime and water temperature, and these factors need to be considered in controlling infestation. Brooders and recruits were present throughout the year, but increased significantly during mid- to late winter/early spring when water temperature and day length increased. Treatment measures should therefore be implemented throughout the year but with increased effort when water temperature increases.
- Format
- 12 pages, pdf
- Language
- English
- Relation
- African Journal of Marine Science, Simon, C.A. and Booth, A.J., 2007. Population structure and growth of polydorid polychaetes that infest cultured abalone Haliotis midae. African Journal of Marine Science, 29(3), pp.499-509, African Journal of Marine Science volume 29 number 3 499 509 2010 1814-232X
- Rights
- African Journal of Marine Science
- Rights
- Use of this resource is governed by the terms and conditions of the Taylor & Francis Online Terms and Conditions Statement (https://www.tandfonline.com/terms-and-conditions)
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Booth, Anthony John (Prof)
RU Department of Ichthyology and Fisheries Science
RU Department of Zoology and Entomology
SDG 14. Life Below Water
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