28.11.2012 Views

Marine Produce Australia: Cone Bay Barramundi Aquaculture ...

Marine Produce Australia: Cone Bay Barramundi Aquaculture ...

Marine Produce Australia: Cone Bay Barramundi Aquaculture ...

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

� Administer all prescribed medications and therapeutants under the strict guidance and<br />

authorisation of the Principal Veterinarian or Senior Fish Pathologist at the WA Fish Health<br />

Laboratories;<br />

� Keep comprehensive records of all prescribed and non-prescribed medications and<br />

therapeutants applied to fish on the aquaculture site including groups medicated, dose<br />

rates and duration; and<br />

� Maintain comprehensive record of all management responses, including alterations to fish<br />

husbandry practice, relating to observation of signs of disease.<br />

8.3 Risk assessment<br />

The risk assessment was conducted in consultation with DoF using the analysis tool outlined<br />

in the National ESD Framework for aquaculture (Fletcher et al. 2004, vom Berg 2008). The<br />

component tree used for identifying potential environmental effects of fish farms, and<br />

findings of the risk assessment are detailed in Appendix A. The risk assessment is used to<br />

evaluate commonly perceived risks of environmental impact that may result from marine<br />

farm operations. The environmental risks identified in this risk assessment were derived<br />

from:<br />

� The component trees outlined in Fisheries Management Paper 229 (vom Berg 2008);<br />

� Concerns arising from public and stakeholder consultation; and<br />

� Report and Recommendations of the OEPA (2008).<br />

The main aim of the risk assessment is to determine if the proposed management is<br />

sufficient, and the management strategies to be considered in determining consequence and<br />

likelihood levels (vom Berg 2008). Figure 8.1 provides an overview of the risks associated<br />

with sea-cage aquaculture as summarised in vom Berg (2008). The risk matrix and risk<br />

matrix outcomes are provided in Table 8.1 and Table 8.2. Results of the risk assessment are<br />

shown in Table 8.3.<br />

�<br />

1.1.1 Collection�<br />

Broodstock Collection�<br />

Genetics�<br />

Abundance�<br />

Grow-out Stock�<br />

1.1 Wild Stock�<br />

of Cultured species�<br />

1.1.2 Escape of�<br />

Cultured Species�<br />

Genetics�<br />

Disease�<br />

Competition�<br />

(eg. food space)�<br />

Other issues�<br />

1. Biological/Environment Effects of the<br />

Whole Finfish <strong>Marine</strong> Based Industry on<br />

Disease<br />

Transmission<br />

1.2 Cultured Stocks/Businesses<br />

(Husbandry)<br />

1.2.1 Genetics<br />

1.2.2 Disease<br />

Identification<br />

Responses<br />

1.2.3 Animal Welfare<br />

1.3 Other Species/Communities�<br />

Processes�<br />

1.3.1 Disease�<br />

Escape & Transmission�<br />

Escape of Cultured Species�<br />

(feral populations)�<br />

1.3.3 Feeds Composition�<br />

(Source and Sustainability)�<br />

1.3.4 Chemicals�<br />

1.3.5 Water Quality�<br />

1.3.6 Pests�<br />

Figure 8.1 Component Tree - Biological/Environmental Effects of the finfish sea-cage industry<br />

(vom Berg 2008, modified from Fletcher et al. 2004)<br />

50 Oceanica: <strong>Marine</strong> <strong>Produce</strong> <strong>Australia</strong>: <strong>Cone</strong> <strong>Bay</strong> <strong>Barramundi</strong> <strong>Aquaculture</strong>, Environmental Monitoring & Management Plan

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!