Detection of pollution effects on marine macrobenthos: further evaluation of the species abundance/biomass method

Warwick, R.M.; Pearson, T.H.; Ruswahyuni,

doi:10.1007/bf00409005

Cited by 173 publications

(76 citation statements)

References 4 publications

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“…This ratio relates the overlap of the abundance and biomass curves and allows an interpretation of the environmental condition based on the fauna (WARWICK et al, 1987;OTERO, 2006;BRAGA, 2008). This is a method for assessing the status of polluted areas based in local populations, without the need for reference of the temporal or spatial series of controlled samples (WARWICK, 1986).…”

Section: Discussionmentioning

confidence: 99%

Ichthyofauna as an environmental quality indicator of the Bertioga Channel, São Paulo (Brazil)

et al. 2017

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Ichthyofauna as an environmental quality indicator of the Bertioga Channel, São Paulo (Brazil)The aim of this study was to investigate the ichthyofauna structure in the region of the north outfall of the Bertioga Channel (São Paulo, Brazil) and the possible effects of the environmental quality loss. The samples were collected in a monthly basis, from September to December 2005, at two oceanographic stations with an otter-trawl. The fish fauna structure was evaluated by ecological indicators and the environmental quality evaluated by the ABC analysis and the Estuarine Fish Communities Index (EFCI). A total of 1553 individuals from 50 species were sampled. Ariidae and Sciaenidae amounted to 60 % and Cathorops spixii represented 36 % of all specimens collected. The highest richness and ecological diversity were recorded in December, while the highest numerical abundance was found in October. The majority of the species were represented by juveniles. The cluster analysis and canonical correspondence analysis showed a consistent and clear difference between the sampling stations, and the abiotic factors analyzed (temperature, depth and salinity) do not seem to have influence on the community structure. The ABC analysis suggested a moderate disturbed environment and the EFCI allowed classifying the area as "poor", due to the 12 metrics analyzed, concerning the reduction of the species diversity, composition and abundance, and modifications in the nursery function and trophic integrity of the area.

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Section: Discussionmentioning

confidence: 99%

Ichthyofauna as an environmental quality indicator of the Bertioga Channel, São Paulo (Brazil)

et al. 2017

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“…Therefore, the plots are more or less approxition curves according to Sanders (1968) nance curves, were plotted. Warwick suggested that the relations between abundance and biomass curves may indicate pollution-induced stress (Warwick 1986, Warwick et al 1987. For an undisturbed community the biomass is expected to lie above the abundance curve.…”

Section: Methodsmentioning

confidence: 99%

Macrofauna investigations along a transect from the inner German Bight towards the Dogger Bank

Kröncke¹,

Rachor²

1992

Mar. Ecol. Prog. Ser.

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During the Bremerhaven Workshop in March 1990 macrofauna san~ples were taken at 9 stations along a transect from the inner German Bight towards the offshore area of the Dogger Bank. Several statistical methods, univariate and multivariate, were applied to identify and describe changes in the communities along this profile. In general, 3 well-described communities were encountered: the Nucula-nitidosa-community in the inner German Bight, the Amphiura-filiforrnis-community from the former Pleistocene valley of the River Elbe and the Tellina-fabula-community from the Dogger Bank. These sediment dependent structures combined with changes due to increasing distance from the shore (including increasing water depth) are superimposed on possible additional changes due to pollution or eutrophication and veil them along the gradient investigated. Thus, indications of impact can only be suggested within the communities. However, even the most offshore Dogger Bank station appears to be disturbed.

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“…Rapid growth, maturity at a small body size and extended reproductive periods are ontogenetic features that allow this species to exploit disturbed habitats. Changes in the structure of benthic communities due to chronic environmental stress are typically characterized by the dominance of opportunistic taxa such as C. capitata (BILYARD, 1987;WARWICK et al, 1987;DAUER, 1993).…”

Section: Palavras-chavementioning

confidence: 99%

Morphometric analysis of Capitella capitata (Polychaeta, Capitellidae)

Pardo

Teixeira

Amaral

2010

Iheringia, Sér. Zool.

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ABSTRACT. Accurate size measurements are fundamental in characterizing the population structure and secondary production of a species. The purpose of this study was to determine the best morphometric parameter to estimate the size of individuals of Capitella capitata (Fabricius, 1780). The morphometric analysis was applied to individuals collected in the intertidal zones of two beaches on the northern coast of the state of São Paulo, Brazil: São Francisco and Araçá. The following measurements were taken: the width and length (height) of the 4th, 5th and 7th setigers, and the length of the thoracic region (first nine setigers). The area and volume of these setigers were calculated and a linear regression analysis was applied to the data. The data were log-transformed to fit the allometric equation y = ax b into a straight line (log y = log a + b * log x ). The measurements which best correlated with the thoracic length in individuals from both beaches were the length of setiger 5 (r 2 = 0.722; p<0.05 in São Francisco and r 2 = 0.795; p<0.05 in Araçá) and the area of setiger 7 (r 2 = 0.705; p<0.05 in São Francisco and r 2 = 0.634; p<0.05 in Araçá). According to these analyses, the length of setiger 5 and/or the area of setiger 7 are the best parameters to evaluate the growth of individuals of C. capitata. KEYWORDS.Capitellidae, Capitella capitata, beaches, intertidal, morphometry. RESUMO. Análise morfométrica deCapitella capitata (Polychaeta, Capitellidae). Medidas de tamanho precisas são fundamentais para a caracterização da estrutura populacional e produção secundária de uma espécie. O objetivo deste estudo foi determinar o melhor parâmetro morfométrico para estimar o tamanho de indivíduos de Capitella capitata (Fabricius, 1780). A análise morfométrica foi aplicada em indivíduos coletados na zona entremarés de duas praias da costa norte do estado de São Paulo, Brasil: São Francisco e Araçá. Foram efetuadas as seguintes medidas: a largura e comprimento dos setígeros 4, 5 e 7, e o comprimento da região torácica. A área e o volume destes setígeros foram calculados e uma análise de regressão linear foi aplicada a estes dados. Os dados foram transformados em logaritmo para ajustar a equação alométrica y = ax b em uma reta (log y = log a +b * log x ). As medidas que apresentaram melhor correlação com a região torácica (nove primeiros setígeros) nos indivíduos das duas praias foram o comprimento do setígero 5 (r 2 = 0,722; p<0,05 em São Francisco e r 2 = 0,795; p<0,05 em Araçá) e a área do setígero 7 (r 2 = 0,705; p<0,05 em São Francisco e r 2 = 0,634; p<0,05 em Araçá). De acordo com estas análises, o comprimento do setígero 5 e/ou a área do setígero 7 são os melhores parâmetros para avaliar o crescimento de indivíduos de C. capitata.

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Detection of pollution effects on marine macrobenthos: further evaluation of the species abundance/biomass method

Cited by 173 publications

References 4 publications

Ichthyofauna as an environmental quality indicator of the Bertioga Channel, São Paulo (Brazil)

Ichthyofauna as an environmental quality indicator of the Bertioga Channel, São Paulo (Brazil)

Macrofauna investigations along a transect from the inner German Bight towards the Dogger Bank

Morphometric analysis of Capitella capitata (Polychaeta, Capitellidae)

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