Multibiomarker assessment of three Brazilian estuaries using oysters as bioindicators

Domingos, Fabíola Xochilt Valdez; Azevedo, Mariana Barbieri de; Silva, M.D.; Randi, Marco Antônio Ferreira; Freire, Carolina A.; Assis, Helena C. Silva de; Ribeiro, Ciro Alberto de Oliveira

doi:10.1016/j.envres.2007.06.003

Cited by 64 publications

(27 citation statements)

References 71 publications

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“…Furthermore, due to the complexity of natural ecosystems and the factors influencing the response of individuals, it is difficult to establish precise quantitative relationships between stressors and different responses at different levels of organization (Adams et al, 2000). Studies employing several biomarkers have the advantage of allowing different evaluation criteria for analyzing the action of pollutants in the same organism, providing results that are complementary (Valdez-Domingos et al, 2007). Also, using statistical tools that allow display of the integrated response of the biomarkers studied provides a better understanding of organism responses to stress events.…”

Section: Discussionmentioning

confidence: 99%

Gill and Liver Histopathology in Goodea atripinnis Jordan, Related to Oxidative Stress in Yuriria Lake, Mexico

Ruiz-Picos

López‐López

2012

Int. J. Morphol.

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SUMMARY:In aquatic ecosystems, the complex mixture of pollutants may mediate the formation of free radicals and cause oxidative damage to the biota. Yuriria Lake (a Ramsar site in Central Mexico) receives input of wastewater from its tributaries, agricultural runoff, and municipal discharge. We studied the lipid peroxidation (LPO), antioxidant enzymes (superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx), and histopathology of gill and liver of the native fish Goodea atripinnis in Yuriria Lake.Results were compared to a control group of fish cultivated in the laboratory. LPO, SOD, and CAT showed no significant differences compared to controls, but GPx showed greater and significant differences in both tissues. Three class sizes were identified; organisms of classes I and II had slight vasocongestion in the liver as compared to controls. Hepatocytes of class III showed cytoplasmic vacuolization, cellular disorganization, and the liver showed marked fibrosis compared to controls. Gills of controls and classes I and II showed no damage in gill filaments. Tissue damage in class III included hypertrophy, loss of the typical morphology, and edema in the gill filaments. The longer exposure of older organisms to Yuriria Lake conditions may have resulted in their poorer health condition.KEY WORDS: Mexican wetlands; Oxidative stress; Histopathology; Fish health condition; Liver; Gill. INTRODUCTIONWetlands are important sites of transition between land and water; these environments are considered among the most productive ecosystems in the world (Environmental Protection Agency, 2001). As in other regions of the world, in Mexico, wetlands serve several functions in the environment, such as storage and filtration of water and as habitat for wildlife (Environmental Protection Agency). These environments are critical stopover and wintering grounds for many of North America's waterfowl and other migratory birds (Wilson & Ryan, 1997) and are of vital importance for fulfilling requirements in the life cycle of migratory and resident Nearctic and Neotropical waterfowl. Unfortunately, they also act as receptors of pollutants over time, and such inputs could have serious consequences for the aquatic biota, outcomes that may not be apparent until they emerge at the population or ecosystem level (Linde-Arias et al., 2008). In Mexico, these ecosystems have undergone processes of transformation for various purposes, but unfortunately a lack of knowledge about their fragility and their inadequate management are among the problems that threaten their conservation (Comisión Nacional del Agua, 2010). One of these consequences is oxidative stress on the biota, which is defined as a disturbance caused by an imbalance between the production of free radicals or pro-oxidant agents and the antioxidant capacity of an organism. Several pollutants when entering water ecosystems become or mediate reactive oxygen species (ROS; O 2 -, OH, H 2 O 2 ), which are highly reactive molecules that interact with critical macromolecules...

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Section: Discussionmentioning

confidence: 99%

Gill and Liver Histopathology in Goodea atripinnis Jordan, Related to Oxidative Stress in Yuriria Lake, Mexico

Ruiz-Picos

López‐López

2012

Int. J. Morphol.

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“…1) in February, 2004 (before the explosion), and again in December, 2004 (2 weeks after the explosion). Significant seasonal differences should not be expected between these two dates, as they are within the Summer season, the rainiest season in Southern Brazil, with minor temperature differences (Technological Institute SIMEPAR, www.simepar.br, retrieved on April 2005; Lana et al 2000;Valdez Domingos et al 2007). The Contaminated (C) site (25°19′430″S; 48°3 2′398″W) was located in front of the Harbour closer to the accident area.…”

Section: Animalsmentioning

confidence: 99%

An assessment of acute biomarker responses in the demersal catfish Cathorops spixii after the Vicuña Oil Spill in a harbour estuarine area in Southern Brazil

Katsumiti

Domingos

Azevedo

et al. 2008

Environ Monit Assess

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The Vicuña oil tanker exploded in Paranaguá Bay (South of Brazil), during methanol unloading operations in front of Paranaguá Harbour, on November 15th, 2004, releasing a large amount of bunker oil and methanol. Two weeks after the accident, the acute effects of the Vicuña Oil Spill (VOS) were evaluated in the demersal catfish Cathorops spixii, comparing a contaminated (at the spill site) and a reference site inside the Bay. Data were compared to previous measurements, taken before the accident, in the same species, from the same sites. The physiological biomarkers were the ones that best reflected acute effects of the spill: plasma osmolality, chloride, calcium, magnesium, and potassium. Morphological (liver and gill histopathology) and genetic (piscine micronucleus and DNA strand breaks) biomarkers revealed that damage was already present in fishes from both reference and contaminated sites inside the Bay. Thus, the reference site is not devoid of contamination, as water circulation tends to spread the contaminants released into other areas of the Bay. Acute field surveys of oil spill effects in harbour areas with a long history of contamination should thus be viewed with caution, and whenever possible previous evaluations should be considered for proper appraisal of biomarker sensitivity, especially in mobile bioindicators such as fish.

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“…The economy of Ilha do Mel, for example, is based on tourism, and the region suffers from the influence of Paranaguá Bay, where fishing, urban occupation, tourism and industry are all common activities, and the bay is home to the main South American grain shipping port (Martins et al, 2010;Gonzaga et al, 2013). Prior information about morphological changes in some marine organisms in the area is available in Valdez-Domingos et al (2007), who recorded histopathological lesions in the gills of Crassostrea rhizophorae found in Paranaguá Bay. There was no direct relationship established by the authors between the lesions and The most frequently observed morphological anomaly shared by both species was the presence of nine tentacular cirri.…”

Section: Resultsmentioning

confidence: 99%

Morphological anomalies in polychaetes: Perinereis species (Polychaeta: Annelida) examples from the Brazilian coast

Coutinho¹,

Santos²

2014

Mem. Mus. Vic.

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The examination of a large number of specimens in the context of taxonomic and ecological studies may lead to the discovery of morphological anomalies. The aim of this study was to describe the morphological anomalies observed in some individuals of Perinereis anderssoni and Perinereis ponteni collected in various regions of the Brazilian coast. A total of 290 specimens were analysed from along the northern and southern Brazilian coast, and 21 of these presented morphological anomalies, such as variations in the number of tentacular cirri and eyes, completely or basally fused antennae, chaetigers with three parapodia, and others. Perinereis anderssoni presented the highest number of anomalous individuals, and the most frequent morphological anomaly was the presence of a single antenna and nine tentacular cirri. Anomalous individuals of P. ponteni with seven tentacular cirri were also commonly collected. Ilha do Mel (PR) was the area with the highest percentage of individuals with anomalies (12.96%), followed by Martim de Sá (SP) (10.31%), São Francisco do Conde (BA) (8.33%), Tambaba (PB) (5.55%) and Itaipu (RJ) (1.92%). Most of the sampling locations have a history of contamination by a diverse array of pollutants. We provide background information for the morphological changes observed in two species that occur along the Brazilian coast, but additional studies are needed to confirm the real cause of these anomalies and their effect on the population structure of these ecologically important species.

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Multibiomarker assessment of three Brazilian estuaries using oysters as bioindicators

Cited by 64 publications

References 71 publications

Gill and Liver Histopathology in Goodea atripinnis Jordan, Related to Oxidative Stress in Yuriria Lake, Mexico

Gill and Liver Histopathology in Goodea atripinnis Jordan, Related to Oxidative Stress in Yuriria Lake, Mexico

An assessment of acute biomarker responses in the demersal catfish Cathorops spixii after the Vicuña Oil Spill in a harbour estuarine area in Southern Brazil

Morphological anomalies in polychaetes: Perinereis species (Polychaeta: Annelida) examples from the Brazilian coast

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