Port Davey Introduced Marine Pest Survey August 2023 ...
This survey was conducted as a partial repeat of previous introduced marine pest port surveys undertaken by Aquenal in Port Davey/Bathurst Channel in 2011 and 2003, with a particular focus on the Pacific oyster Magallana gigas following the detection of a live specimen in Schooner Cove in February 2...
| Main Authors: | , , , , , |
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| Format: | Report |
| Language: | unknown |
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University Of Tasmania
2023
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| Online Access: | https://dx.doi.org/10.25959/24785382.v1 https://figshare.utas.edu.au/articles/report/Port_Davey_Introduced_Marine_Pest_Survey_August_2023/24785382/1 |
| Summary: | This survey was conducted as a partial repeat of previous introduced marine pest port surveys undertaken by Aquenal in Port Davey/Bathurst Channel in 2011 and 2003, with a particular focus on the Pacific oyster Magallana gigas following the detection of a live specimen in Schooner Cove in February 2022 that triggered an initial search by Natural Resources and Environment Tasmania (NRE Tas) in March 2022. However, no individuals were found, suggesting there had been no obvious recruitment or expansion of Magallana gigas within the estuarine system. This is despite extensive searching via targeted shoreline surveys by NRE Tas in March 2022 and this project (shoreline and immediate subtidal zone) in April 2022 and the broader pests survey in March 2023 that included more comprehensive subtidal diver-based searches. Shoreline searches showed that Carcinus meanas (European shore crab) now appears to be widespread and common within this system, following a similar pattern observed in eastern Tasmanian estuaries ... |
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