Promoting invasive species control and eradication in the sea: options for managing the tunicate invader Didemnum vexillum in Sitka, Alaska.
Mar Pollut Bull
; 77(1-2): 165-71, 2013 Dec 15.
Article
em En
| MEDLINE
| ID: mdl-24449921
ABSTRACT
Bioinvasions are a significant force of change--and economic and ecological threat--in marine ecosystems. The threat now encroaches on Alaska, which has had relatively few invasions compared to other global regions, prompting need to develop new incursion response tools. We appraised five 'eco-friendly' immersion treatment options (dilute acetic acid, dilute bleach, freshwater, brine and hypoxia) at either minute- or hour-scale exposures to kill the invasive tunicate Didemnum vexillum. Data revealed 100% treatment efficacy after two minutes in acetic acid, ten minutes in bleach, four hours in freshwater and over four hours in brine solution. We also demonstrated the importance of monitoring D. vexillum recovery for at least three weeks, since seemingly destroyed colonies rebounded during this timeframe. Combined, these findings provide insights towards a bay-scale eradication and post-border management plan applicable to the recent D. vexillum incursion in Whiting Harbor, Alaska and other shallow, inshore invasion sites.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Urocordados
/
Conservação dos Recursos Naturais
/
Espécies Introduzidas
Limite:
Animals
País/Região como assunto:
America do norte
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article