Response of a southern rock lobster (Jasus edwardsii) population to three years of Marine Protected Area implementation within South Australia
| Autor: | Simon Bryars, Lachlan J. Mcleay, Adrian Linnane, Peter Hawthorne, Richard McGarvey |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
education.field_of_study biology 010604 marine biology & hydrobiology Jasus edwardsii Fishing Population Aquatic Science Catch per unit effort biology.organism_classification 010603 evolutionary biology 01 natural sciences Fishery Geography Abundance (ecology) Marine protected area education Relative species abundance Spiny lobster |
| Zdroj: | Journal of the Marine Biological Association of the United Kingdom. 101:141-149 |
| ISSN: | 1469-7769 0025-3154 |
| Popis: | The Western Kangaroo Island Marine Park (WKIMP) was declared as part of South Australia's representative system of Marine Protected Areas in 2009. Sanctuary Zone 3 (SZ-3) of the WKIMP is a no-take area protected from fishing since 1 October 2014 and is located within the Northern Zone Rock Lobster Fishery (NZRLF). In February 2017, a dedicated survey was undertaken to estimate the relative abundance (catch per unit effort (CPUE), kg/potlift) and size of southern rock lobster (Jasus edwardsii) inside and outside SZ-3. Survey results were then compared with historical estimates of abundance and size obtained from commercial fishery-dependent data. Survey estimates of relative abundance of legal-size lobsters were 4.4 times greater inside SZ-3 compared with outside in 2017. Since 2014, when fishing was last permitted inside SZ-3, the relative abundance of lobsters increased by 75%. The mean size of legal-size female and male lobsters also increased by 4.1% and 12.5%, respectively. The population responses recorded are consistent with the results recorded for southern rock lobster stocks in marine parks in other jurisdictions. |
| Databáze: | OpenAIRE |
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