Pollution-induced community tolerance (PICT) in periphyton communities established under tri-n-butyltin (TBT) stress in marine microcosms

Dahl, Björn; Blanck, Hans

doi:10.1016/0166-445x(95)00046-7

Cited by 57 publications

(25 citation statements)

References 39 publications

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“…Pollution-induced community tolerance (PICT) has recently been used as an ecotoxicological tool for assessing the toxic e!ects of a pollutant on an ecosystem at the community level (Blanck et al, 1988;Dahl and Blanck, 1996;Rutgers et al, 1998;Siciliano et al, 2000). The PICT theory is founded on the principle that communities become tolerant due to individual acclimation, genetic or physiological adaptation, and loss of sensitive species as a result of longterm exposure to a toxicant or a mixture of toxicants (Posthuma, 1997).…”

Section: Introductionmentioning

confidence: 98%

An in Situ Respirometric Technique to Measure Pollution-Induced Microbial Community Tolerance in Soils Contaminated with 2,4,6-Trinitrotoluene

Gong

Gasparrini

Rho

et al. 2000

Ecotoxicology and Environmental Safety

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Section: Introductionmentioning

confidence: 98%

An in Situ Respirometric Technique to Measure Pollution-Induced Microbial Community Tolerance in Soils Contaminated with 2,4,6-Trinitrotoluene

Gong

Gasparrini

Rho

et al. 2000

Ecotoxicology and Environmental Safety

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“…As a result, the functional role of chironomids in the food web and detritus cycle may be preserved even when organotin pollutants, such as TBT, have eliminated many species or even genera from the community. TBT has also been found to have the same effect on marine periphyton in laboratory conditions (Dahl and Blanck 1996) and on species regime shifts in natural communities (Sayer et al 2006;Smith et al 2008). This suggests that our conclusion is not specific to chironomids, but may be valid for other species-rich groups with high functional redundancy.…”

Section: Discussionmentioning

confidence: 94%

Sediment organic tin contamination promotes impoverishment of non-biting midge species communities in the Archipelago Sea, S-W Finland

et al. 2012

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Chironomid species are a vital component in many benthic and terrestrial food webs; they have an important role in the detritus cycle, and are an important source of food for many species. We studied how tributyltin (TBT) in brackish water sediments affect the composition of chironomid species communities. Emergence traps were used at selected sites on a TBT gradient in the Archipelago Sea, S-W Finland. Increased sediment TBT concentration was associated with significant chironomid species turnover, which in turn was related to decreased species diversity (number of species and genera). However, the overall number of individuals did not decrease markedly with increasing TBT contamination. This suggests that the ecological role of chironomids in the food web may be preserved even under severe impoverishment of the chironomid community due to organic tin contamination. The increased prevalence of more TBT tolerant species can potentially lead to a transport of organic tin compounds between aquatic and terrestrial food webs. Furthermore, the reduced diversity of an ecologically influential group might lower the resistance of the entire food web to other environmental hazards and perturbations.

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“…Cette approche a été appliquée sur les communautés algales (phytoplancton et périphyton), principalement en systèmes expérimentaux où le milieu étudié était artificiellement contaminé (DAHL et BLANCK, 1995GUSTAVSON et WÂNGBERG, 1995 ;MOLANDER et BLANCK, 1992 ;MOLANDER et al, 1990 BLANCK, 1990). Quelques études plus rares ont été abordées en milieu naturel sur des pesticides antisalissures et sur des métaux lourds BLANCK et DAHL, 1998 ;WÂNGBERG, 1995).…”

Section: Déstructuration Sélection Et Résistance Des Communautés Algunclassified

Les herbicides inhibateurs du photosystème II, effets sur les communautés algales et leur dynamique

Bérard¹,

Pelte

2005

rseau

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Nous présentons une revue bibliographique à propos des effets des herbicides inhibiteurs du Photosystème II (PS II) sur les communautés algales. Ces herbicides sont abondamment utilisés dans les pratiques phytosanitaires. Ils sont susceptibles de contaminer les milieux aquatiques et, étant donné leur mode d'action inhibitrice de la photosynthèse, ils peuvent agir directement sur les algues. De nombreuses études ont été réalisées afin d'évaluer l'impact des contaminations par ces herbicides sur les microphytes, en particulier leur effet sur la croissance et la physiologie de certaines algues (monocultures en laboratoire). D'autres études expérimentales et quelques rares in situ, ont porté sur l'impact des herbicides inhibiteurs de la photosynthèse sur la structure des peuplements algaux. Certaines tendances ont pu être ainsi dégagées quant à la sensibilité et la résistance aux herbicides des différentes espèces étudiées soit isolément, soit au sein des peuplements. Les herbicides inhibiteurs du PS II perturbent effectivement la structure des peuplements phytoplanctoniques de façon plus ou moins marquée. L'impact des herbicides sur les algues est variable selon la structure des peuplements (liée aux successions) et les paramètres environnementaux, notamment liés à la saison. Nous devons donc développer nos connaissances à propos des interactions entre toxiques et facteurs environnementaux sur des pas de temps correspondant non seulement aux rythmes des contaminations mais aussi aux rythmes des succesions alagles, car ces interactions sont susceptibles de réduire ou d'amplifier les conséquences d'une pollution par ces toxiques dans les milieux aquatiques.The aim of this paper is to present a review about the impact of Photo system II (PS II) inhibitors on algae communities. A brief discussion of the use in agriculture, the different chemical families, the photosynthetic inhibition effect and the occurrence of these compounds in aquatics systems is followed by the presentation of the impacts these herbicides have on algae. Many studies investigate the effects of PS II inhibitors on algae growth and physiology. The response to pollutants were studied by monitoring changes in terms of different parameters : chlorophyll fluorescence induction usually increases with PS II inhibitors. Concentration of pigments decreases with PS II inhibitors, but increases sometimes with low contaminations of these toxicants (it is probably an homeostasis effect). Pigment ratio can change with herbicide exposure. Primary production (measured by 14C incorporation or dissolved O2) usually decreases with PS II inhibitors. But, the " excretion " of dissolved organic compounds may increase with PS II inhibitors. These herbicides may alter or change cell morphology of algae. In consequence algae growth is inhibited by PS II inhibitors exposure. But growth inhibition varies, depending on each species' (and strain) sensibility or resistance to each herbicide. By this way, PS II inhibitors can affect the algae community structure. In consequence, ...

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Pollution-induced community tolerance (PICT) in periphyton communities established under tri-n-butyltin (TBT) stress in marine microcosms

Cited by 57 publications

References 39 publications

An in Situ Respirometric Technique to Measure Pollution-Induced Microbial Community Tolerance in Soils Contaminated with 2,4,6-Trinitrotoluene

An in Situ Respirometric Technique to Measure Pollution-Induced Microbial Community Tolerance in Soils Contaminated with 2,4,6-Trinitrotoluene

Sediment organic tin contamination promotes impoverishment of non-biting midge species communities in the Archipelago Sea, S-W Finland

Les herbicides inhibateurs du photosystème II, effets sur les communautés algales et leur dynamique

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