US: WA oyster farmers monitor potential mud worm problem

Published 2021년 1월 13일

Tridge summary

A recent study has identified the presence of the Polydora websteri parasite, also known as mud worm, on Pacific oysters in Washington State, marking the first record of this parasite in the state. This parasite, which has caused significant economic losses in Australia, New Zealand, and Hawaii, was confirmed through a 2020 publication. Despite the potential concerns, industry representatives have not reported any negative impacts on the meat or the aquaculture operations. The distribution and species of the parasite within the estuaries are still not fully mapped, and more research is being conducted to understand its life history and potential economic implications, particularly for raw bar markets.

Disclaimer:The above summary was generated by Tridge's proprietary AI model for informational purposes.

Original content

Researchers have officially confirmed the presence of a shell-boring oyster parasite Polydora websteri, also known as mud worm, on the shells of Pacific oysters in Washington State. And while the industry says it is not on a level that causes concern, it is keeping a watchful eye. The study, “Confirmation of the shell-boring oyster parasite Polydora websteri (Polychaeta: Spionidae) in Washington State, USA,” published in 2020, is the first confirmed record of the species in the state. Researchers Martinelli, J.C., Lopes, H.M., Hauser, L. et al, said the invader has led to significant economic losses for shellfish aquaculture in Australia, New Zealand, and Hawaii. David Beugli, executive director of The Willapa Grays Harbor Growers Association in Southwest Washington, says mud worm may have occurred in low numbers for some time. “The blister discolors the shell but has no effect on the meat. Currently they have not caused a problem here and are not a concern.” He acknowledged, ...

Source: Aquaculture Northamerica