Pollution and parasitism in aquatic animals: A meta-analysis of effect size

Blanar, Christopher A.; Munkittrick, Kelly R.; Houlahan, Jeff E.; MacLatchy, Deborah L.; Marcogliese, David J.

doi:10.1016/j.aquatox.2009.03.002

Cited by 178 publications

(159 citation statements)

References 58 publications

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“…In our case, the response to pollution of Capillaria sp. in M. barbatus was positive, and this is in disagreement with the negative response normally indicated for heteroxenous parasites (Blanar et al, 2009). On the other hand, infections caused by the nematode H. fabri in M. barbatus and C. linguatula were significantly lower in the impacted area near Barcelona.…”

Section: Discussioncontrasting

confidence: 51%

“…Among the parasite taxa, some studies suggest that nematodes would make a poor choice as indicator species (Lafferty, 1997;Blanar et al, 2009). Nevertheless, we observed a significantly higher prevalence and abundance of Capillaria sp.…”

Section: Discussioncontrasting

confidence: 37%

“…However, although evidence supports the view of a relationship between parasitic load of fish and exposure to pollutants (Zander and Kesting, 1996;Schmidt et al, 2003), the potential use of parasites as bioindicators for pollution biomonitoring is still controversial, since many natural factors also influence prevalence, infection intensity and biodiversity of parasites (Williams and Mackenzie, 2003) and both hosts and parasites can interact differently with each stressor (Lafferty and Kuris, 1999). This notwithstanding, from parasitological data obtained either from the field or following experimental treatment, Blanar et al (2009) and Vidal-Martinez et al (2010) point out the usefulness of parasites as bioindicators of environmental impacts.…”

Section: Introductionmentioning

confidence: 82%

“…Digeneans are considered good indicators of environmental degradation, their number having been found to decrease with most types of pollution (Lafferty, 1997;Mackenzie, 1999, Blanar et al, 2009). In our study, digenean increase with pollution in M. barbatus, and specifically that of O. furcatus, might indicate that environmental impact could affect the host response to the parasite but would not affect the survival and infectivity of the larvae, as pointed out by Morley et al (2003).…”

Section: Discussionmentioning

confidence: 99%

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Parasites and hystopathology of Mullus barbatus and Citharus linguatula (Pisces) from two sites in the NW Mediterranean with different degrees of pollution

Carreras-Aubets¹,

Montero²,

Padrós³

et al. 2010

Sci. Mar.

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SUMMARY: The usefulness of fish parasite communities as bioindicators of environmental stress was tested on two benthic fish species, the red mullet (Mullus barbatus) and the spotted flounder (Citharus linguatula), during the spring of 2006 at two sites of the Catalan coast (northwestern Mediterranean): an anthropogenic-impacted area located close to the city of Barcelona, and a less polluted area close to Blanes (Girona). Gonadosomatic and hepatosomatic indices and condition factor were determined for the fishes caught. Prevalence, mean intensity, mean abundance and species richness of the parasites found in the survey were calculated for both species and locations, and the main histological alterations were recorded. Cysts of unknown aetiology and intestinal coccidians were reported only in red mullets from the area close to Barcelona, which were highly parasitized by the digenean Opecoeloides furcatus and the nematode Capillaria sp. However, a higher prevalence of Ichthyophonus sp. was reported in the spotted flounder from Blanes. Cysts of unknown aetiology, some nematodes and Ichthyophonus sp. may be associated with pollution.Keywords: bioindicators, Mediterranean, Mullus barbatus, Citharus linguatula, cysts of unknown etiology (CUEs), Ichthyophonus sp. RESUMEN: Parásitos e histopatología de Mullus barbatus y Citharus linguatula de dos zonas sometidas a diferente grado de contaminación del Mediterráneo noroccidental. -Se ha comparado la utilidad de las comunidades parasíticas de peces como bioindicadores de estrés ambiental en dos especies bentónicas de peces , el salmonete de fango Mullus barbatus y la solleta Citharus linguatula, durante la primavera de 2006 en dos lugares de la costa catalana (Mediterráneo NO): un área fuertemente impactada cerca de la ciudad de Barcelona, y una menos contaminada cerca de Blanes (Girona). Se determinó el índice gonadosomático, el índice hepatosomático y el factor de condición de los peces capturados. Se calculó la prevalencia, intensidad media, abundancia media y riqueza específica de los diferentes parásitos encontrados por especie y localidad, y se analizaron las principales alteraciones histológicas. Se han encontrado quistes de etiología desconocida y coccidios intestinales tan sólo en los ejemplares de M. barbatus de Barcelona, los cuales también estaban altamente parasitados por el digeneo Opecoeloides furcatus y el nematodo Capillaria sp. Se ha detectado Ichthyophonus sp. tan sólo en los ejemplares de C. linguatula, presentando una mayor prevalencia en los ejemplares de Blanes. Los quistes de etiología desconocida, algunos nematodos e Ichthyophonus sp. podrían estar relacionados con la contaminación.

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Section: Discussioncontrasting

confidence: 51%

Section: Discussioncontrasting

confidence: 37%

Section: Introductionmentioning

confidence: 82%

Section: Discussionmentioning

confidence: 99%

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Parasites and hystopathology of Mullus barbatus and Citharus linguatula (Pisces) from two sites in the NW Mediterranean with different degrees of pollution

Carreras-Aubets¹,

Montero²,

Padrós³

et al. 2010

Sci. Mar.

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“…None the less water quality (with particular reference to pollutants such as heavy metals) has been shown to negatively affect monogenean parasite numbers and distribution (Dušek et al 1998, Galli et al 2001, Marcogliese 2004, Blanar et al 2009). …”

Section: Water Quality Variablesmentioning

confidence: 99%

Monogenean parasites from fishes of the Vaal Dam, Gauteng Province, South Africa. I. Winter survey versus summer survey comparison from Labeo capensis (Smith, 1841) and Labeo umbratus (Smith, 1841) hosts

Crafford

Luus‐Powell

Avenant‐Oldewage

2014

Acta Parasitologica

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Indigenous South African Labeo spp. show promise with regard to development of semi-intensive aquaculture, yet little research on their monogenean fauna has been conducted. Ecological aspects of monogenean fauna of the moggel Labeo umbratus (Smith 1841) and the Orange River mudfish Labeo capensis (Smith 1841), as recorded during both winter and summer sampling surveys, are reported here. Fish were collected using gill nets, euthanized and gills removed and examined to both quantify parasite numbers and distribution on the gills. Results obtained support the hypothesis that gill site preference is not due to active choice for a particular attachment site, but rather a result of water flow over gills during respiration in conjunction with fish behaviour and habitat use. Interaction between individual elements investigated (temperature effects, parasite population dynamics and host population dynamics) may be largely responsible for seasonal differences in infection statistics of monogenean parasites. Such interactions should be investigated in future large scale ecological studies, in combination with experimental studies, to further elucidate these effects.

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Parasites of Percophis brasiliensis (Percophidae) benefited from fishery regulations: Indicators of success for marine protected areas?

Braicovich

Irigoitia

Bovcon

et al. 2020

Aquatic Conservation

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Fishing is the greatest source of anthropogenic impact on global marine resources and the ecosystems supporting them. The decline of many fish stocks has led to the need to apply control and protection measures to promote the recovery of these resources. In the Argentine Sea, a multispecies coastal fishery in the El Rincón region has displayed signs of overexploitation since the beginning of the century. Consequently, temporal and spatial protection measures were implemented in 2004. In previous studies, an independent stock of Percophis brasiliensis in El Rincón was identified based on the parasite communities of fish caught in 2005. However, no subsequent studies using parasite communities have been performed since the protective fishery closure measures were applied. To evaluate parasites as indicators of temporal change in the El Rincón stock of P. brasiliensis after the implementation of these protection measures, a sample from 2018 was compared with that from the previous study, as well as with three other samples. Two of the latter (Argentine Common Fishing Zone and San Matías Gulf) corresponded to previously identified independent stocks in the Argentine biogeographical province and the third was a new sample from the Magellanic Province in southern Patagonian waters. The structure and composition of parasite assemblages of the El Rincón stock of P. brasiliensis differed significantly in 2018, after several years of protective measures. The increased loads observed in several parasite species constitute a promising signal of successful ecosystem recovery. A discrete stock in the Magellanic Province was also identified, providing insights into the population structure of P. brasiliensis along its distributional range, with applications for the sustainable management of this resource.

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Pollution and parasitism in aquatic animals: A meta-analysis of effect size

Cited by 178 publications

References 58 publications

Parasites and hystopathology of <i>Mullus barbatus</i> and <i>Citharus linguatula</i> (Pisces) from two sites in the NW Mediterranean with different degrees of pollution

Parasites and hystopathology of <i>Mullus barbatus</i> and <i>Citharus linguatula</i> (Pisces) from two sites in the NW Mediterranean with different degrees of pollution

Monogenean parasites from fishes of the Vaal Dam, Gauteng Province, South Africa. I. Winter survey versus summer survey comparison from Labeo capensis (Smith, 1841) and Labeo umbratus (Smith, 1841) hosts

Parasites of Percophis brasiliensis (Percophidae) benefited from fishery regulations: Indicators of success for marine protected areas?

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