Macrobenthos and multi-molecular markers as indicators of environmental contamination in a South American port (Mar del Plata, Southwest Atlantic)

Albano, Mariano; Lana, Paulo da Cunha; Bremec, Claudia; Elías, Rodolfo; Martins, César C.; Venturini, Natalia; Muñiz, Pablo; Rivero, Silvia; Vallarino, Eduardo Alberto; Obenat, Sandra

doi:10.1016/j.marpolbul.2013.05.032

Cited by 46 publications

(31 citation statements)

References 78 publications

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“…Chlorophyll a is used frequently as an estimator of fresh food for deposit-feeders of the bottom sediments, and also the ratio chlor a/pheopig is useful for that. In the present case, these values, always lower than 1, are a clear indication of degraded organic matter prevalent on the surface bottom sediments (MUNIZ et al, 2006;ALBANO et al, 2013). This pattern has been previously recorded for the study area and shows the intense microbial activity present due to the excess of organic matter.…”

Section: Discussionsupporting

confidence: 86%

“…They are persistent in sediments, easily associate with particulate material and sediments, and present notable resistance to anaerobic degradation. Sewage pollution derived from densely populated areas around ports has been evaluated more recently by high concentrations of faecal sterols (PENG et al, 2005;MARTINS et al, 2010;2011a;ALBANO et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Integrated assessment of contaminants and monitoring of an urbanized temperate harbor (Montevideo, Uruguay): a 12-year comparison

et al. 2015

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Integrated assessment of contaminants and monitoring of an urbanized temperate harbor (Montevideo, Uruguay): a 12-year comparisonSituated opposite the Freshwater Front, Montevideo city with its more than 1.5 million inhabitants encircles Montevideo Bay, where one of the most active and polluted harbors in South America is located. Faecal sterols, trace metals, organochlorine compounds and petroleum derivatives in the sediments of Montevideo Harbor were evaluated and their spatial distribution inside the harbor as well as in the input of two main tributary streams analyzed. Specifically for the harbor sites, a temporal comparison of metal and hydrocarbons was made with previous measurements taken 12 years ago. Clear changes were observed at these sites. The concentration of metals such as Pb, Cr and Zn have diminished, while aliphatic hydrocarbons have increased their values at almost all of the stations studied. Differences were observed between summer and winter suggesting sedimentation, input or hydrodynamic changes in the area. These results help one to understand the present situation and develop the management measures needed to improve the environmental quality of the harbor and bay. AbstrAct

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Section: Discussionsupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Integrated assessment of contaminants and monitoring of an urbanized temperate harbor (Montevideo, Uruguay): a 12-year comparison

et al. 2015

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“…1) and in La Estafeta (thereafter LE, 38°09 0 59 00 S, 57°37 0 59 00 W). MdP is one of the most important harbours in Argentina because of its fishing fleet, naval traffic, commercial trade and recreational sailing (Rivero et al 2005;Schwindt et al 2010;Albano et al 2013). The coasts of Mar del Plata city (ca.…”

Section: Study Areamentioning

confidence: 99%

“…MdP is a polluted area characterized by high levels of hydrocarbons from fuel discharges, polycyclic aromatic hydrocarbons, copper (DYOPSA 1999;Albano et al 2013), tributyltin (Penchaszadeh et al 2001;Goldberg et al 2004), high water turbidity, low pH and high levels of organic matter from industrial and sewage effluents (Rivero et al 2005;Schwindt et al 2010;Albano et al 2013). Despite to high pollution, in the recreational area, the wooden docks and marinas are covered by a high abundance of ascidians, algae and tubicolous polychaetes that generate refuges to a great variety of fish, flatworms, molluscs, crustaceans and nematodes (Albano and Obenat 2009;Albano et al 2013). On the other hand, LE is an intertidal flat located 15 km south of MdP characterized by a rocky substrate formed by consolidated sediment and many tidal pools (Rumbold et al 2012).…”

Section: Study Areamentioning

confidence: 99%

Comparison of life history traits of Tanais dulongii (Tanaidacea: Tanaididae) in natural and artificial marine environments of the south-western Atlantic

2015

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Tanaidaceans are small benthic crustaceans with a strictly benthic life cycle and low dispersion rates, so they are good candidates to evaluate the effects of environment over life history strategies and reproductive biology. In this work, we studied two populations of Tanais dulongii (Audouin, 1826) that live in two contrasting habitats in order to determine whether they differ in life history traits. The animals were obtained by systematic sampling in a rocky shore with a lower anthropic impact (La Estafeta: LE) and a polluted area (Mar del Plata harbour: MdP) from March 2011 to March 2012. Seawater temperature and salinity did not differ between sites, but MdP showed more acid and hypoxic conditions than LE. Population density was homogeneous and lower in MdP (ca. 20 ind/100 gr) than that in LE where density varied between 250 and 800 ind/100 gr. Reproductive individuals and juveniles were always present, and both populations showed two main recruitment periods: the first in spring in both populations, and the second in summer in MdP but in autumn-winter in LE. In both populations, sex ratio was strongly female-biased. Juveniles, females and males from LE had larger sizes than that from MdP and reached their sexual differentiation at larger sizes. The estimated lifespan was about 9 and 12 months in MdP and LE, respectively. This study suggests that the differences observed between populations of T. dulongii in life history traits are intimately related to environmental differences in pH and dissolved oxygen between habitats, but should not be discarded a synergistic effect of temperature, organic pollution, food availability and predation pressure.

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“…The city of Mar del Plata has one of the most important commercial harbors in Argentina, receiving both national and international cargo ships and fishing vessels (Meretta et al, 2012). This harbor is considered to be a "hot spot" for non-indigenous species (Albano et al, 2013). Numerous invasive marine species have been found in the harbor (Orensanz et al, 2002); therefore, it is not surprising that G. vertens polyps inhabit this community.…”

Section: Moerisia Inkermanicamentioning

confidence: 99%

First record of the invasive stinging medusa Gonionemus vertens in the southern hemisphere (Mar del Plata, Argentina)

Rodríguez¹,

Pujol²,

Mianzán³

et al. 2014

lajar

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Macrobenthos and multi-molecular markers as indicators of environmental contamination in a South American port (Mar del Plata, Southwest Atlantic)

Cited by 46 publications

References 78 publications

Integrated assessment of contaminants and monitoring of an urbanized temperate harbor (Montevideo, Uruguay): a 12-year comparison

Integrated assessment of contaminants and monitoring of an urbanized temperate harbor (Montevideo, Uruguay): a 12-year comparison

Comparison of life history traits of Tanais dulongii (Tanaidacea: Tanaididae) in natural and artificial marine environments of the south-western Atlantic

First record of the invasive stinging medusa Gonionemus vertens in the southern hemisphere (Mar del Plata, Argentina)

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