Mitigating non-indigenous species movements: effects of pressure-washing intensity and duration on the removal of biofouling and mobile invertebrates from cultured Pacific oysters (Crassostrea gigas (Thunberg, 1793))

Curtis, Lyanne; Pearce, Christopher; Hodes, Vanessa; Nelson, Jocelyn C.; Wasser, Calley; Savery, Julia; Therriault, Thomas W.

doi:10.3391/mbi.2021.12.3.07

Cited by 1 publication

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“…Avoidance and prevention are the first-line responses, but when surviving populations reach harmful densities, they require immediate treatment [22]. Several biofouling management methods have been developed for shellfish farming, including physical [23], chemical [24], biological [25] and mechanical methods [26][27][28]. Despite the great extent of existing work available, commonly applied approaches are limited.…”

Section: Introductionmentioning

confidence: 99%

Environmentally Friendly and Efficient Methods for Mitigating the Density of Ascidian Fouling in Mediterranean Mussel Farming

Tsotsios,

Papadopoulos,

Alvanou

et al. 2024

Fishes

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Ascidian biofouling generates significant challenges to bivalve aquaculture. Their rapid spread across almost every available surface leads to increased maintenance costs and reduced yields in shellfish farming. In addition, ascidians may introduce pathogens or toxins, further compromising the health and marketability of bivalve stocks and thereby necessitating strict management strategies to manage these impacts. The aim of this study was the evaluation of different management practices for eliminating ascidian fouling and the identification of the best method for Mytilus galloprovincialis (Lamarck, 1819) aquaculture farms. The effects of different anti-fouling treatments as well as their interactive outcomes were examined by conducting two experiments. Various experimental procedures were applied, including the temporally differential washing of mussels, air exposure and immersion in 50 ppt and 70 ppt salinity solutions, as well as the combination of these applications. All treatments reduced the number of ascidian colonies on mussel socks but at varying proportions. Immersing mussel socks in a 70 ppt salinity solution followed by air exposure for 1 day was the most efficient method and led to a 93% eradication.

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