Parasites as Pollution Indicators in Marine Ecosystems: a Proposed Early Warning System

MacKenzie, Ken

doi:10.1016/s0025-326x(99)00100-9

Cited by 164 publications

(116 citation statements)

References 11 publications

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“…It has been suggested that some parasites might make suitable bioindicators of pollution (Möller, 1987;Khan & Thulin, 1991;MacKenzie et al, 1995;MacKenzie, 1999). Previously, we proposed that an increase in the prevalence of microsporidian parasites, and the consequential occurrence of intersexuality in E. marinus, might also provide a suitable marker for disturbed environments (Ford et al, 2006).…”

Section: Discussionmentioning

confidence: 98%

An investigation into intersex amphipods and a possible association with aquaculture

Ford

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Jones

et al. 2007

Marine Environmental Research

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Section: Discussionmentioning

confidence: 98%

An investigation into intersex amphipods and a possible association with aquaculture

Ford

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Jones

et al. 2007

Marine Environmental Research

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“…Some of them may be exceptionally sensitive and unable to face polluted conditions, others can tolerate various levels of stress and others, indicated as "opportunistic" or even "ruderal" species, may flourish in highly impacted areas (Grime, 1977). Changes in the abundance of these species can provide signals of the degree of community change, before the majority of organisms are seriously affected (Mackenzie, 1999). Such information has been frequently provided by environmental impact studies (Mackenzie, 1999;Bustos-Baez and Frid, 2003) and continuous efforts have been devoted for searching the best indicator taxa.…”

Section: Species Level Impactmentioning

confidence: 99%

“…Changes in the abundance of these species can provide signals of the degree of community change, before the majority of organisms are seriously affected (Mackenzie, 1999). Such information has been frequently provided by environmental impact studies (Mackenzie, 1999;Bustos-Baez and Frid, 2003) and continuous efforts have been devoted for searching the best indicator taxa. Nevertheless, the bulk of these studies focused on benthic sessile invertebrates, which are still considered the most 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 suitable indicator organisms in the marine environment (Wilson, 1994;Jeffrey, 1994;Jones andKaly, 1996, Rygg, 1985;Occhipinti-Ambrogi and Forni, 2004;Ugland et al, 2008), whereas very few investigations have been carried out on fishes (Becker et al, 1981;Spies, 1984).…”

Section: Species Level Impactmentioning

confidence: 99%

“…At the community level (see Johnston and Roberts, 2009 for a review), sewage effects have been traditionally studied on benthic assemblages, especially soft-bottom invertebrates, because these organisms are usually easy to sample quantitatively and show detectable responses to a variety of anthropogenic impacts (Warwick, 1993). Nevertheless, in recent years the effects of sewages have been investigated in different assemblages, such as hard substrate sessile organisms (Terlizzi et al, 2002 and references therein); parasites (Mackenzie, 1999 and references therein); plankton (Bianchi et al, 2003) and fish assemblages (Otway, 1996;Gray, 1997;Smith et al, 1999;Schlacher et al, 2005;Guidetti et al, 2002;Ribeiro et al, 2008;Reopanichkul et al, 2009). Particularly, the use of fish to reveal both natural and anthropogenic alterations to the environment has received an increasing attention in the last decades (Karr, 1981;Warwick, 1993;Whitfield and Elliott, 2002;Martinho et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

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Sewage pollution impact on Mediterranean rocky-reef fish assemblages

Azzurro

Matiddi

Fanelli

et al. 2010

Marine Environmental Research

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The effects of sewage outfalls on subtidal fish assemblages were studied along the NW coasts of Malta (Sicily channel, Mediterranean Sea) by means of underwater visual census. The presence of two spatially distinct outfalls discharging untreated wastewaters allowed to use a balanced symmetrical ACI (After Control/Impact) design that consisted of two putatively impacted locations and two controls, with four sites nested in each location. Surveys were performed in 2006 at two random dates. The study highlighted significant changes at both assemblage and individual species levels. Fish assemblages structures were different between controls and sewages, where total abundance of fish were higher. The responses of individual species to sewage pollution were mostly related to an anomalous increase of two small opportunistic species i.e. Gobius bucchichii andParablennius rouxi and to a decrease of species of the genus Symphodus, particularly S. roissali and S. ocellatus. Moreover in correspondence of the outfalls, significant changes of the fish size distribution were detected for several species. These results support the use of fish assemblages as biological indicators for marine coastal waters and demonstrated the possibility to obtain sharp signals of environmental impact from some individual fish species.

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“…For fish parasitized by ectoparasites such as Monogenea, environmental changes can be reflected in reproduction, physiology, survival (KHAN; THULIN, 1991) and fish population size (MACKENZIE et al, 1995;MACKENZIE, 1999;MOLES;WADE, 2001;KHAN, 2003). Kohn et al (2007) described the effect of Gyrodactylus trairae on the surface of the body and Urocleidoides eremitus on the gills of H. malabaricus.…”

Section: Introductionmentioning

confidence: 99%

Hematological parameters of Hoplias malabaricus (Characiformes: Erythrinidae) parasitized by Monogenea in lagoons in Pirassununga, Brazil

Corrêa

Karling

Takemoto

et al. 2013

Rev. Bras. Parasitol. Vet.

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Hematology is an important pathological and diagnostic tool. This paper describes the hematological parameters of 76 specimens of Hoplias malabaricus infested with monogenean parasites, which were collected from two lagoons. The hematological parameters included: erythrocyte count (Er), microhematocrit (Hct), hemoglobin (Hb), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH) and mean corpuscular hemoglobin concentration (MCHC). The blood parameters showed no significant changes associated with the infestation. Water temperature was found to be negatively correlated with MCV and Hct, with values of r s = -0.52, p<0.0001 and r s = -0.48, p<0.0001, respectively. The mean Relative Condition Factor was Kn=1.01, indicating good health conditions of the fish in these lagoons. No correlation was found between the monogenean infestation and the blood parameters, or between the environmental factors and the monogeneans.Keywords: Parasites, blood cells, freshwater fish. ResumoA hematologia é uma importante ferramenta para patologia e diagnóstico. O presente estudo teve como objetivo descrever os parâmetros hematológicos de 76 espécimes de Hoplias malabaricus, coletados em duas lagoas, associados ao parasitismo por monogenético. Os parâmetros hematológicos foram: contagem de eritrócitos (Er), micro hematócrito (Hct), hemoglobina (Hb), volume corpuscular médio (VCM), hemoglobina corpuscular (HCM) e a concentração da hemoglobina cospuscular média (CHCM). Observou-se que não ocorreram mudanças significativas nos parâmetros sanguíneos relacionados com o parasitismo. Houve uma correlação negativa entre a temperatura da água o VCM e Hct, com valores de r s = -0,52, p<0,0001 e r s = -0,48, p<0,0001, respectivamente. O valor médio entre o fator de condição relativo foi de Kn = 1,01, indicando boas condições e os peixes estavam saudáveis nas lagoas estudadas. Não houve relação entre a infestação de monogeneas e os parâmetros sanguíneos, ou entre os fatores ambientais e as monogeneas.Palavras-chave: Parasitas, células sanguíneas, peixes de água doce.

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Parasites as Pollution Indicators in Marine Ecosystems: a Proposed Early Warning System

Cited by 164 publications

References 11 publications

An investigation into intersex amphipods and a possible association with aquaculture

An investigation into intersex amphipods and a possible association with aquaculture

Sewage pollution impact on Mediterranean rocky-reef fish assemblages

Hematological parameters of Hoplias malabaricus (Characiformes: Erythrinidae) parasitized by Monogenea in lagoons in Pirassununga, Brazil

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