Biological invasions: Assessment of threat from ballast-water discharge in Patagonian (Argentina) ports

Between July 2007 and December 2008 we surveyed 194 commercial vessels for compliance with ballast water (BW) regulations at five Argentine ports (four of them along the Patagonian coast). Our survey included the inspection of the BW reporting forms and collection of BW samples for salinity and biol...

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Autores principales:	Boltovskoy, Demetrio, Almada, Pablo S., Correa, Nancy
Publicado:	2011
Materias:	Argentina Ballast water Invasive species Patagonia aquatic species article copepod diatom geography government regulation law nonhuman plankton practice guideline priority journal salinity ship species invasion waste water management Animalia Bacillariophyta Copepoda
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14629011_v14_n5_p578_Boltovskoy http://hdl.handle.net/20.500.12110/paper_14629011_v14_n5_p578_Boltovskoy
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_14629011_v14_n5_p578_Boltovskoy
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spelling	paper:paper_14629011_v14_n5_p578_Boltovskoy2023-06-08T16:16:19Z Biological invasions: Assessment of threat from ballast-water discharge in Patagonian (Argentina) ports Boltovskoy, Demetrio Almada, Pablo S. Correa, Nancy Argentina Ballast water Invasive species Patagonia aquatic species Argentina article copepod diatom geography government regulation law nonhuman plankton practice guideline priority journal salinity ship species invasion waste water management Animalia Bacillariophyta Copepoda Between July 2007 and December 2008 we surveyed 194 commercial vessels for compliance with ballast water (BW) regulations at five Argentine ports (four of them along the Patagonian coast). Our survey included the inspection of the BW reporting forms and collection of BW samples for salinity and biological (plankton) analyses from 261 BW tanks. Most (77%) ships had some type of BW form on board, but the information in these forms was often unclear, incomplete or inconsistent and did not allow tracking the origin of the BW. Salinity of the BW was often in conflict with the reported geographic location of BW exchange, and the reported volumes of BW discharged in the ports surveyed appeared to be fictitious. Most (80%) BW tanks contained identifiable organisms, usually in very good state of preservation, totaling 408 plant and animal taxa, but only three of these had not been previously recorded in Argentina (two diatoms and one copepod). In spite of the fact that compliance with national and international regulations and guidelines on BW management is poor in the area, the number of recorded marine aquatic nonindigenous species (ANS) in Argentina is comparatively low (ca. 40). Several factors seem to buffer the Argentine coastline from ANS: (1) the low activity of most Patagonian ports; (2) the fact that most (61%) incoming ship traffic originates from domestic ports or areas unlikely to supply ANS; (3) the harsh environmental conditions (cold and turbulent, with few sheltered areas); and (4) the scarcity of hard substrates. In order to maintain its waters relatively free of ANS, Argentina needs to significantly increase its efforts at enforcing existing international and national legislation, and to revise and update its standards on BW management. We anticipate that the problems encountered are also characteristic of many other developing countries, both in South America and elsewhere, where compliance with IMO's BW guidelines is still seldom tested or enforced. © 2011 Elsevier Ltd. Fil:Boltovskoy, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Almada, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Correa, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14629011_v14_n5_p578_Boltovskoy http://hdl.handle.net/20.500.12110/paper_14629011_v14_n5_p578_Boltovskoy
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Argentina Ballast water Invasive species Patagonia aquatic species Argentina article copepod diatom geography government regulation law nonhuman plankton practice guideline priority journal salinity ship species invasion waste water management Animalia Bacillariophyta Copepoda
spellingShingle	Argentina Ballast water Invasive species Patagonia aquatic species Argentina article copepod diatom geography government regulation law nonhuman plankton practice guideline priority journal salinity ship species invasion waste water management Animalia Bacillariophyta Copepoda Boltovskoy, Demetrio Almada, Pablo S. Correa, Nancy Biological invasions: Assessment of threat from ballast-water discharge in Patagonian (Argentina) ports
topic_facet	Argentina Ballast water Invasive species Patagonia aquatic species Argentina article copepod diatom geography government regulation law nonhuman plankton practice guideline priority journal salinity ship species invasion waste water management Animalia Bacillariophyta Copepoda
description	Between July 2007 and December 2008 we surveyed 194 commercial vessels for compliance with ballast water (BW) regulations at five Argentine ports (four of them along the Patagonian coast). Our survey included the inspection of the BW reporting forms and collection of BW samples for salinity and biological (plankton) analyses from 261 BW tanks. Most (77%) ships had some type of BW form on board, but the information in these forms was often unclear, incomplete or inconsistent and did not allow tracking the origin of the BW. Salinity of the BW was often in conflict with the reported geographic location of BW exchange, and the reported volumes of BW discharged in the ports surveyed appeared to be fictitious. Most (80%) BW tanks contained identifiable organisms, usually in very good state of preservation, totaling 408 plant and animal taxa, but only three of these had not been previously recorded in Argentina (two diatoms and one copepod). In spite of the fact that compliance with national and international regulations and guidelines on BW management is poor in the area, the number of recorded marine aquatic nonindigenous species (ANS) in Argentina is comparatively low (ca. 40). Several factors seem to buffer the Argentine coastline from ANS: (1) the low activity of most Patagonian ports; (2) the fact that most (61%) incoming ship traffic originates from domestic ports or areas unlikely to supply ANS; (3) the harsh environmental conditions (cold and turbulent, with few sheltered areas); and (4) the scarcity of hard substrates. In order to maintain its waters relatively free of ANS, Argentina needs to significantly increase its efforts at enforcing existing international and national legislation, and to revise and update its standards on BW management. We anticipate that the problems encountered are also characteristic of many other developing countries, both in South America and elsewhere, where compliance with IMO's BW guidelines is still seldom tested or enforced. © 2011 Elsevier Ltd.
author	Boltovskoy, Demetrio Almada, Pablo S. Correa, Nancy
author_facet	Boltovskoy, Demetrio Almada, Pablo S. Correa, Nancy
author_sort	Boltovskoy, Demetrio
title	Biological invasions: Assessment of threat from ballast-water discharge in Patagonian (Argentina) ports
title_short	Biological invasions: Assessment of threat from ballast-water discharge in Patagonian (Argentina) ports
title_full	Biological invasions: Assessment of threat from ballast-water discharge in Patagonian (Argentina) ports
title_fullStr	Biological invasions: Assessment of threat from ballast-water discharge in Patagonian (Argentina) ports
title_full_unstemmed	Biological invasions: Assessment of threat from ballast-water discharge in Patagonian (Argentina) ports
title_sort	biological invasions: assessment of threat from ballast-water discharge in patagonian (argentina) ports
publishDate	2011
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14629011_v14_n5_p578_Boltovskoy http://hdl.handle.net/20.500.12110/paper_14629011_v14_n5_p578_Boltovskoy
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Biological invasions: Assessment of threat from ballast-water discharge in Patagonian (Argentina) ports

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