Contamination par les PCBs et les pesticides organochlorés des poissons du Grand-Duché de Luxembourg : incidence possible sur les populations de loutre (<i>Lutra lutra</i>L.)

Hugla, J. L.; Dohet, Alain; Thys, Isabelle; Hoffmann, Lucien; Thomé, Jean-Pierre

doi:10.1051/limn/1998019

Cited by 5 publications

(8 citation statements)

References 12 publications

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“…In these studies, PCBs in fish tended to increase along the catchment of the river considered, and fish from the lowest areas were sometimes heavily contaminated. Furthermore, some Cyprinidae species are more contaminated by organochlorine compounds than Salmonidae ones (Hugla et al 1995(Hugla et al , 1998. Cyprinidae generally dominate fish population and often otter diet in downstream parts of river catchments (Guitart et al 2005;Kruuk 2006).…”

Section: Potential Consequences Of the Contamination For Otter Populamentioning

confidence: 99%

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Organochlorine Compounds (pesticides and PCBs) in Scats of the European Otter (Lutra lutra) from an Actual Expanding Population in Central France

Lemarchand¹,

Amblard²,

Souchon³

et al. 2007

Water Air Soil Pollut

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Scats of the European otter (Lutra lutra) were sampled along the Allier river (France) catchment for organochlorine toxic compounds (nine pesticides and 16 PCBs congeners) measurement. From early 2004 to June 2005, 90 sites of 40 rivers were twice investigated, and 71 scats samples collected, in four geographical areas being naturally re-colonized by the species since its legal protection. Detectable pesticides and PCBs were found in 100% of the samples. Mean values reached 2.72 and 13.58 mg kg −1 (lipid weight) for pesticides and PCBs, respectively. Amounts were significantly different between the four areas investigated. A significant increase in medium and absolute values is noted by going downstream of the catchment. Potential medium-and long-term consequences on the observed population increase are discussed.

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Section: Potential Consequences Of the Contamination For Otter Populamentioning

confidence: 99%

“…fish or amphibians, especially by organochlorine compounds, like pesticides or non-coplanar congeners of PCBs (Jung et al 2004;Mazet et al 2004Mazet et al , 2005. These toxic compounds in preys should cause reproductive failure to otters (Hugla et al 1998). …”

Section: Introductionmentioning

confidence: 99%

Organochlorine Compounds (pesticides and PCBs) in Scats of the European Otter (Lutra lutra) from an Actual Expanding Population in Central France

Lemarchand¹,

Amblard²,

Souchon³

et al. 2007

Water Air Soil Pollut

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“…This decline may be partly due to the increasing contamination of the aquatic ecosystems by PCBs and mercury after the Second World War (Kruuk and Conroy, 1996;Kruuk et al, 1997;Mason, 1998). In a study realized in 1994 by the Otter Group in Luxembourg, the contamination of chub, barbel and eel by PCBs was considered as critical for the otter (Essoe, 1995;Groupe Loutre Luxembourg, 1997;Hugla et al, 1998). The PCB levels measured in fish from all rivers of Luxembourg, varied between 40 and 3500 ng g À1 (wet wt) with 50% above the critical limit of 500 ng g À1 (wet wt) defined by Weber (1990) for the otter (Hugla et al, 1998).…”

Section: Introductionmentioning

confidence: 99%

Chemical contaminants in fish species from rivers in the North of Luxembourg: Potential impact on the Eurasian otter (Lutra lutra)

Boscher¹,

Gobert

Guignard³

et al. 2010

Chemosphere

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“…Perches and eels caught in the Suˆre river had mean total PCB concentrations of 3.3 and 205 ng g À1 fw, respectively [38]. A previous study from 1993-1996 [40] showed variations between 50 and 3500 ng g À1 fw for the sum of 22 PCBs in different Luxembourg river fish. This high variation is due to the four fish species and to the 11 rivers studied.…”

Section: Discussionmentioning

confidence: 93%

“…Data on the occurrence and the distribution of non-dioxin-like PCBs in ecological systems, however, has remained limited [14]. Nevertheless, several studies have meanwhile shown that PCB 153 (IUPAC) and PCB 138, both non-dioxin-like, can be predominant in fish and seafood samples in significant concentrations, up to 40 fresh weight [15][16][17][18]. Thus, with respect to their long persistence there is an ongoing need for methods to allow monitoring a number of environmental or food samples for their non-dioxin-like PCB concentrations, such as in Luxembourg where few data are available.…”

Section: Introductionmentioning

confidence: 99%

Rapid analysis of polychlorinated biphenyls in fish by pressurised liquid extraction with in-cell cleanup and GC-MS

Cocco¹,

Guignard²,

Hoffmann³

et al. 2011

International Journal of Environmental Analytical Chemistry

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An improved, rapid method for polychlorobiphenyl (PCB) extraction from lipid rich matrices and determination by GC-MS is presented. PCBs accumulate in the environment, can be extremely persistent, and health complications including neurotoxic effects have been reported. Thus, monitoring these persistent organic pollutants seems prudent. The analytical procedure for PCB assessment from environmental samples typically consists of the three steps extraction, purification and analysis by GC coupled with electron-capture detection or mass spectrometry. The aim of the present study was the implementation of a protocol allowing for determining selected indicator PCBs (n ¼ 6) following a single extraction/purification step. Pressurised liquid extraction (PLE) combined with different silica layers directly in the extraction cell allowed efficient removal of lipids and direct analysis by GC-MS. Accuracy was determined by comparison with a reference standard (SRM 1946), and the equivalence of PLE to an established extraction method (soxhlet) was verified. Mean recovery of the combined procedure from trout spiked with a mixture of 50 ng of each PCB was 87 AE 8 (range 74-94)%, and results of ASE were comparable to soxhlet (difference total PCBs 516%). In addition, the protocol showed higher throughput (20 min/extraction cycle) and required less organic solvents (90 mL/sample). This method was then applied for monitoring PCBs in a variety of Luxembourgish fresh water fish (trout, eels, roaches, n ¼ 38). The PCB profile was dominated by congeners 153 and 138, with maximum concentrations of 30 and 21 ng g À1 trout (fresh weight), respectively, highlighting that PCB concentrations might vary considerably in fish depending on species, eating habits and weight.

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Contamination par les PCBs et les pesticides organochlorés des poissons du Grand-Duché de Luxembourg : incidence possible sur les populations de loutre (Lutra lutraL.)

Cited by 5 publications

References 12 publications

Organochlorine Compounds (pesticides and PCBs) in Scats of the European Otter (Lutra lutra) from an Actual Expanding Population in Central France

Organochlorine Compounds (pesticides and PCBs) in Scats of the European Otter (Lutra lutra) from an Actual Expanding Population in Central France

Chemical contaminants in fish species from rivers in the North of Luxembourg: Potential impact on the Eurasian otter (Lutra lutra)

Rapid analysis of polychlorinated biphenyls in fish by pressurised liquid extraction with in-cell cleanup and GC-MS

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