Voltar
Artigo Produção Nacional Revisado por pares
BIBTEX RIS

Short-term toxicity of ammonia, sodium Hydroxide and a commercial biocide to golden mussel Limnoperna fortunei (Dunker, 1857)

2013; Elsevier BV; Volume: 92; Linguagem: Inglês

10.1016/j.ecoenv.2013.03.016

ISSN

1090-2414

Autores

Lângia Colli Montresor, Kleber Campos Miranda‐Filho, Adriano Pereira Paglia, Dalva M.R. Luz, J. M. Araújo, Márcio José dos S. Silva, Luciana Gerhard, Carlos Barreira Martinez, Teofânia H. D. A. Vidigal,

Tópico(s)

Aquatic Invertebrate Ecology and Behavior

Resumo

Macrofouling bivalves are considered an ecological and technological problem worldwide. Control measures have been researched with Limnoperna fortunei, but without success. The aim of the manuscript is to test some alternatives to regulate this harmful invasive mollusk. Mortality and behavioral response (shell gaping) of Limnoperna fortunei exposed to three chemical compounds were evaluated. Values for LC50 96h were: 0.25 (0.24-0.27)mg/L NH3-N, 11.10 (7.45-16.55) mg/L MXD-100 and 88.51 (74.61-105.01)mg/L NaOH. Reduced gaping was observed beginning at concentrations of 0.31mg/L (NH3-N), 100mg/L (MXD-100) and 160mg/L (NaOH) and increased above these values. The percentage of individuals gaping after two hours at LC50 96h differed significantly (χ(2)=79.9; DF=3; p<0.001) in MXD-100 (50%), NaOH (0%), NH3-N (96.7%) and the controls (93.3%). This study contributes to the understanding of the relationship between toxicity and behavioral effects of some toxicants in L. fortunei.

Referência(s)