Assessing the likelihoods of marine pest introductions in Sydney estuaries: A transport vector approach.
Glasby TM and Lobb K (2008) Assessing the likelihoods of marine pest introductions in Sydney estuaries: A transport vector approach. Final report to the Sydney Metropolitan Catchment Management Authority for Project No. ECM1.1. NSW Department of Primary Industries – Fisheries Final Report Series No. 105. 84pp. ISSN 1449-9967.
|Assessing the likelihoods of marine pest introductions in Sydney estuaries: A transport vector approach.
Marine pests can have serious ecological and socio-economic costs. There are currently five nationally-listed marine pests in NSW, with a further five established in other states. Numerous potential marine pests not yet in Australia have also been identified. A crucial factor in being able to eradicate or control any pest is early detection, which means knowing which species to look for and where. This project assessed the likelihood of marine pest introductions in Sydney based on degree of connectivity among estuaries by different vectors, and by factoring in the likelihood that particular species could be transported by each vector. The specific objectives were to: (i) identify which international ports are most likely to be sources of any marine species that could be introduced to Port Jackson or Botany Bay and become a pest; (ii) identify which of the nationally-listed pests of concern could survive and reproduce in Port Jackson, Botany Bay or Port Hacking; (iii) identify which of these pests are most likely to be introduced into Port Jackson or Botany Bay via international shipping connections; and (iv) determine the likelihood that any of the marine pests already in Australia could be transported to Port Jackson, Botany Bay or Port Hacking.
In general, Botany Bay is more at risk of invasion than is Port Jackson. The port of Shanghai (China) ranked as the most likely source of a new pest for Botany Bay. The next most likely sources of pests for Botany Bay are Hong Kong, Auckland, Pusan (Korea), Kaohsiung (Taiwan) and Tauranga (New Zealand).