Using the turtle excluder device (TED) in the pink shrimp trawling fishery off southern Brazil

The use of the turtle excluder device (TED) has been mandatory in Brazil since 1994. In spite of the importance of sea turtle bycatch reduction, TED effectiveness to maintain target species capture had never been evaluated in shrimp fisheries off southern Brazil. For this purpose, a test was carried...

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Autores principales:	Schroeder,Rafael, Bottene,Bruno R, Sant'Ana,Rodrigo, Wahrlich,Roberto, Queirolo,Dante
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2016
Materias:	sea turtles turtle excluder device trawl fishery incidental catch southern Brazil
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000500021
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spelling	oai:scielo:S0718-560X20160005000212016-12-15Using the turtle excluder device (TED) in the pink shrimp trawling fishery off southern BrazilSchroeder,RafaelBottene,Bruno RSant'Ana,RodrigoWahrlich,RobertoQueirolo,Dante sea turtles turtle excluder device trawl fishery incidental catch southern Brazil The use of the turtle excluder device (TED) has been mandatory in Brazil since 1994. In spite of the importance of sea turtle bycatch reduction, TED effectiveness to maintain target species capture had never been evaluated in shrimp fisheries off southern Brazil. For this purpose, a test was carried out in November 2013 with the TED installed with two different configurations, top or bottom opening under the supervision of a technician of the National Oceanic and Atmospheric Administration (NOAA). Absolute catch and fishery yields were simultaneously monitored in 10 fishing hauls of a double-rig trawler by an onboard observer in one net equipped with a TED and the other without a TED. Although a Bayesian hypothesis test demonstrated no significant differences through the simultaneous comparison of absolute capture considering the use and non-use of the TED, the credibility interval of posterior beta distributions intercepted almost its minimum limit which weakens the hypothesis of equality. In terms of orientation, the model mounted with the top opening showed no differences in absolute catches of the target species in respect to control.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.44 n.5 20162016-11-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000500021en10.3856/vol44-issue5-fulltext-21
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	sea turtles turtle excluder device trawl fishery incidental catch southern Brazil
spellingShingle	sea turtles turtle excluder device trawl fishery incidental catch southern Brazil Schroeder,Rafael Bottene,Bruno R Sant'Ana,Rodrigo Wahrlich,Roberto Queirolo,Dante Using the turtle excluder device (TED) in the pink shrimp trawling fishery off southern Brazil
description	The use of the turtle excluder device (TED) has been mandatory in Brazil since 1994. In spite of the importance of sea turtle bycatch reduction, TED effectiveness to maintain target species capture had never been evaluated in shrimp fisheries off southern Brazil. For this purpose, a test was carried out in November 2013 with the TED installed with two different configurations, top or bottom opening under the supervision of a technician of the National Oceanic and Atmospheric Administration (NOAA). Absolute catch and fishery yields were simultaneously monitored in 10 fishing hauls of a double-rig trawler by an onboard observer in one net equipped with a TED and the other without a TED. Although a Bayesian hypothesis test demonstrated no significant differences through the simultaneous comparison of absolute capture considering the use and non-use of the TED, the credibility interval of posterior beta distributions intercepted almost its minimum limit which weakens the hypothesis of equality. In terms of orientation, the model mounted with the top opening showed no differences in absolute catches of the target species in respect to control.
author	Schroeder,Rafael Bottene,Bruno R Sant'Ana,Rodrigo Wahrlich,Roberto Queirolo,Dante
author_facet	Schroeder,Rafael Bottene,Bruno R Sant'Ana,Rodrigo Wahrlich,Roberto Queirolo,Dante
author_sort	Schroeder,Rafael
title	Using the turtle excluder device (TED) in the pink shrimp trawling fishery off southern Brazil
title_short	Using the turtle excluder device (TED) in the pink shrimp trawling fishery off southern Brazil
title_full	Using the turtle excluder device (TED) in the pink shrimp trawling fishery off southern Brazil
title_fullStr	Using the turtle excluder device (TED) in the pink shrimp trawling fishery off southern Brazil
title_full_unstemmed	Using the turtle excluder device (TED) in the pink shrimp trawling fishery off southern Brazil
title_sort	using the turtle excluder device (ted) in the pink shrimp trawling fishery off southern brazil
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000500021
work_keys_str_mv	AT schroederrafael usingtheturtleexcluderdevicetedinthepinkshrimptrawlingfisheryoffsouthernbrazil AT bottenebrunor usingtheturtleexcluderdevicetedinthepinkshrimptrawlingfisheryoffsouthernbrazil AT santanarodrigo usingtheturtleexcluderdevicetedinthepinkshrimptrawlingfisheryoffsouthernbrazil AT wahrlichroberto usingtheturtleexcluderdevicetedinthepinkshrimptrawlingfisheryoffsouthernbrazil AT queirolodante usingtheturtleexcluderdevicetedinthepinkshrimptrawlingfisheryoffsouthernbrazil
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Using the turtle excluder device (TED) in the pink shrimp trawling fishery off southern Brazil

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