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    Effects of gut sediment contents on heavy metal levels in the amphipod Corophium volutator (Pallas)
    (Turkish Journal of Zoology, 1999) Bat, Levent; Raffaelli, Dave
    Concentrations of copper, zinc and cadmium were determined in Corophium volutator (with and without gut contents) exposed for 4 and 10 days to contaminated sediment. Significant differences were observed in metal concentrations among individuals, where gut contents were removed and those there they were left intact. On the other hand, the concentrations of th ese metals in Corophium were always high when no time was given for amphipods to depurate their guts. Therefore, it is recommended that either depuration in seawater or removal of the gut should be carried out before analysing amphipods for metal levels
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    Survival and growth of Corophium volutator in organically enriched sediment: A comparison of laboratory and field experiments
    (Turkish Journal of Zoology, 1998) Bat, Levent; Raffaelli, Dave
    In this study, the amphipod Corophium volutator (Pallas) was evaluated as test organisms for use in sediment toxicity tests by adapting standard protocols for conducting 10-day and 28-day sediment toxicity tests. Combine laboratory and field bioas-says showed that Corophium can survive in organically enriched sediment if they have no alternative, suggesting that Corophium is relatively tolerant of organically enriched sediment. Neither were there effects on emergence or reburying behaviour. Therefore t his bioassay is considered inappropriate for estimating the quality of organically enricment sediment.
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    The Corophium volutator (Pallas) sediment toxicity test: An inter-laboratory comparison
    (Ege Üniversitesi Su Ürünleri Dergisi, 1996) Bat, Levent; Raffaelli, Dave
    The amphipod Corophium volutator (Pallas) was evaluated as test organisms for use in sediment toxicity tests. The results of an inter-laboratory comparison of a 28-days sediment bioassay on sediment contaminated with a pesticide (permethrin) showed that Corophium survival decreased with increasing permethrin concentration in the sediment. In the present study the 28-day LC50 was 67ng g-1 ranging from 55 to 82ng g-1. Problems with using individual dry weigth as a sub-lethal endpoint were highlighted.
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    Toxicity of river sediments in South-West Spain
    (Ege Üniversitesi Su Ürünleri Dergisi, 1996) Bat, Levent; Raffaelli, Dave; L. Marr, Iain
    In the present study, sedment contaminated with several heavy metals was collected from the field from south-west Spain and its toxicity assessed using the amphipod Corophium volutator (Pallas) bioassay. The bioassay proved very sensitive to these sediments.