Lightsticks cause adverse effects on behavior and mortality of marine mysids Promysis atlantica

ABSTRACT Lightsticks baits are discharged into the ocean after their use in longline fishing. The traditional Brazilian community of Costa dos Coqueiros, Bahia, uses lightsticks as a medicine for rheumatism, vitiligo, and mycoses. It may affect marine life when its content leak into the ocean. This...

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Autor principal:	Cesar-Ribeiro,Caio
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2021
Materias:	Promysis atlantica mysids lightstick TIE marine pollution ecotoxicology
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2021000400632
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spelling	oai:scielo:S0718-560X20210004006322021-09-27Lightsticks cause adverse effects on behavior and mortality of marine mysids Promysis atlanticaCesar-Ribeiro,Caio Promysis atlantica mysids lightstick TIE marine pollution ecotoxicology ABSTRACT Lightsticks baits are discharged into the ocean after their use in longline fishing. The traditional Brazilian community of Costa dos Coqueiros, Bahia, uses lightsticks as a medicine for rheumatism, vitiligo, and mycoses. It may affect marine life when its content leak into the ocean. This study assessed the toxicity identification and evaluation (TIE) of lightsticks constituents on marine mysids Promysis atlantica. The internal solution was dissolved in seawater with ethanol. The lethal concentration of the contaminant that causes mortality in 50% of the exposed population (LC50) after 3h was 0.001%, demonstrating that lightstick is exceptionally toxic because low concentrations cause mortality to mysids P. atlantica. Due to lightsticks’ high toxicity, the TIE baseline was 0.005% SSE (stock solution ethanol), and the selected endpoints were behavior and lethality. The sample submitted to aeration presented a significant reduction (P < 0.05) in toxicity (0.005% SSE) because the volatile compounds caused the toxic effect. The sodium thiosulfate treatment induced an insignificant decrease in toxicity. Thus, a new assay was conducted considering aeration and sodium thiosulfate. This combination reduced lightstick toxicity compared to the baseline lightstick, suggesting that volatile compounds and oxidants were responsible for toxicity; even in low concentrations, lightstick can promote significant behavior changes and deleterious effects. It is recommended to create new mechanisms to inspect fishing vessels, thus avoiding the improper disposal of attractors at sea and common garbage.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.49 n.4 20212021-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2021000400632en10.3856/vol49-issue4-fulltext-2651
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Promysis atlantica mysids lightstick TIE marine pollution ecotoxicology
spellingShingle	Promysis atlantica mysids lightstick TIE marine pollution ecotoxicology Cesar-Ribeiro,Caio Lightsticks cause adverse effects on behavior and mortality of marine mysids Promysis atlantica
description	ABSTRACT Lightsticks baits are discharged into the ocean after their use in longline fishing. The traditional Brazilian community of Costa dos Coqueiros, Bahia, uses lightsticks as a medicine for rheumatism, vitiligo, and mycoses. It may affect marine life when its content leak into the ocean. This study assessed the toxicity identification and evaluation (TIE) of lightsticks constituents on marine mysids Promysis atlantica. The internal solution was dissolved in seawater with ethanol. The lethal concentration of the contaminant that causes mortality in 50% of the exposed population (LC50) after 3h was 0.001%, demonstrating that lightstick is exceptionally toxic because low concentrations cause mortality to mysids P. atlantica. Due to lightsticks’ high toxicity, the TIE baseline was 0.005% SSE (stock solution ethanol), and the selected endpoints were behavior and lethality. The sample submitted to aeration presented a significant reduction (P < 0.05) in toxicity (0.005% SSE) because the volatile compounds caused the toxic effect. The sodium thiosulfate treatment induced an insignificant decrease in toxicity. Thus, a new assay was conducted considering aeration and sodium thiosulfate. This combination reduced lightstick toxicity compared to the baseline lightstick, suggesting that volatile compounds and oxidants were responsible for toxicity; even in low concentrations, lightstick can promote significant behavior changes and deleterious effects. It is recommended to create new mechanisms to inspect fishing vessels, thus avoiding the improper disposal of attractors at sea and common garbage.
author	Cesar-Ribeiro,Caio
author_facet	Cesar-Ribeiro,Caio
author_sort	Cesar-Ribeiro,Caio
title	Lightsticks cause adverse effects on behavior and mortality of marine mysids Promysis atlantica
title_short	Lightsticks cause adverse effects on behavior and mortality of marine mysids Promysis atlantica
title_full	Lightsticks cause adverse effects on behavior and mortality of marine mysids Promysis atlantica
title_fullStr	Lightsticks cause adverse effects on behavior and mortality of marine mysids Promysis atlantica
title_full_unstemmed	Lightsticks cause adverse effects on behavior and mortality of marine mysids Promysis atlantica
title_sort	lightsticks cause adverse effects on behavior and mortality of marine mysids promysis atlantica
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2021000400632
work_keys_str_mv	AT cesarribeirocaio lightstickscauseadverseeffectsonbehaviorandmortalityofmarinemysidspromysisatlantica
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Lightsticks cause adverse effects on behavior and mortality of marine mysids Promysis atlantica

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