First survey of macroinfauna in the Mar del Plata Harbor (Argentina), and the use of polychaetes as pollution indicators
Harbors share a number of similar problems, such as water and sediment pollution. In this work we analyze spatial variation of macroinfauna, with special emphasis in polychaete abundance to characterize the environmental health of Mar del Plata Harbor. Twelve stations were sampled with replicated 0....
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| Lenguaje: | English |
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Universidad de Valparaíso. Facultad de Ciencias del Mar
2005
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oai:scielo:S0718-195720050002000022006-03-06First survey of macroinfauna in the Mar del Plata Harbor (Argentina), and the use of polychaetes as pollution indicatorsRivero,Ma. SilviaElías,RodolfoVallarino,Eduardo A macrobenthic community indicator species environmental variables multivariate analyses Harbors share a number of similar problems, such as water and sediment pollution. In this work we analyze spatial variation of macroinfauna, with special emphasis in polychaete abundance to characterize the environmental health of Mar del Plata Harbor. Twelve stations were sampled with replicated 0.05 m² van Veen grabs, with environmental variables from the water column and sediments in December 2001. Polychaetes (23 of 35 taxa) constituted 62% of the total abundance. A multi dimensional scaling analysis and a redundancy analysis showed three groups of stations: one at the mouth of the port, with healthy environmental conditions and characterized by Mediomastus sp., Maldanidae and Aglaophamus uruguayi; other in the inner harbor, with poor environmental conditions and inhabited only by Capitella “capitata” sp., and a third intermediate and more diverse group with Polydora spp., Tharyx sp., Mediomastus sp., Capitella “capitata” sp., and Capitella sp. Differences among pre-defined groups were significant. It is hypothesized that strong hydrodynamics affects the stations at the mouth, as shown by low organic content and the dominance of sandy sediments. In the inner harbor, poor environmental conditions are due to restricted water movement, prevalence of silt sediments, and high content of pollutants. Abundance of Capitella spp. correlated to total organic carbon content, except in the inner harbor. It is possible that high concentrations of hydrocarbons in the inner harbor explain the low abundance of these species, as well as the absence of other benthic animals, and the low diversity values. Polychaetes are useful pollution indicators in this harbor.info:eu-repo/semantics/openAccessUniversidad de Valparaíso. Facultad de Ciencias del MarRevista de biología marina y oceanografía v.40 n.2 20052005-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572005000200002en10.4067/S0718-19572005000200002 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
macrobenthic community indicator species environmental variables multivariate analyses |
| spellingShingle |
macrobenthic community indicator species environmental variables multivariate analyses Rivero,Ma. Silvia Elías,Rodolfo Vallarino,Eduardo A First survey of macroinfauna in the Mar del Plata Harbor (Argentina), and the use of polychaetes as pollution indicators |
| description |
Harbors share a number of similar problems, such as water and sediment pollution. In this work we analyze spatial variation of macroinfauna, with special emphasis in polychaete abundance to characterize the environmental health of Mar del Plata Harbor. Twelve stations were sampled with replicated 0.05 m² van Veen grabs, with environmental variables from the water column and sediments in December 2001. Polychaetes (23 of 35 taxa) constituted 62% of the total abundance. A multi dimensional scaling analysis and a redundancy analysis showed three groups of stations: one at the mouth of the port, with healthy environmental conditions and characterized by Mediomastus sp., Maldanidae and Aglaophamus uruguayi; other in the inner harbor, with poor environmental conditions and inhabited only by Capitella “capitata” sp., and a third intermediate and more diverse group with Polydora spp., Tharyx sp., Mediomastus sp., Capitella “capitata” sp., and Capitella sp. Differences among pre-defined groups were significant. It is hypothesized that strong hydrodynamics affects the stations at the mouth, as shown by low organic content and the dominance of sandy sediments. In the inner harbor, poor environmental conditions are due to restricted water movement, prevalence of silt sediments, and high content of pollutants. Abundance of Capitella spp. correlated to total organic carbon content, except in the inner harbor. It is possible that high concentrations of hydrocarbons in the inner harbor explain the low abundance of these species, as well as the absence of other benthic animals, and the low diversity values. Polychaetes are useful pollution indicators in this harbor. |
| author |
Rivero,Ma. Silvia Elías,Rodolfo Vallarino,Eduardo A |
| author_facet |
Rivero,Ma. Silvia Elías,Rodolfo Vallarino,Eduardo A |
| author_sort |
Rivero,Ma. Silvia |
| title |
First survey of macroinfauna in the Mar del Plata Harbor (Argentina), and the use of polychaetes as pollution indicators |
| title_short |
First survey of macroinfauna in the Mar del Plata Harbor (Argentina), and the use of polychaetes as pollution indicators |
| title_full |
First survey of macroinfauna in the Mar del Plata Harbor (Argentina), and the use of polychaetes as pollution indicators |
| title_fullStr |
First survey of macroinfauna in the Mar del Plata Harbor (Argentina), and the use of polychaetes as pollution indicators |
| title_full_unstemmed |
First survey of macroinfauna in the Mar del Plata Harbor (Argentina), and the use of polychaetes as pollution indicators |
| title_sort |
first survey of macroinfauna in the mar del plata harbor (argentina), and the use of polychaetes as pollution indicators |
| publisher |
Universidad de Valparaíso. Facultad de Ciencias del Mar |
| publishDate |
2005 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572005000200002 |
| work_keys_str_mv |
AT riveromasilvia firstsurveyofmacroinfaunainthemardelplataharborargentinaandtheuseofpolychaetesaspollutionindicators AT eliasrodolfo firstsurveyofmacroinfaunainthemardelplataharborargentinaandtheuseofpolychaetesaspollutionindicators AT vallarinoeduardoa firstsurveyofmacroinfaunainthemardelplataharborargentinaandtheuseofpolychaetesaspollutionindicators |
| _version_ |
1714202254818410496 |