Effects of short- and long-term exposures to copper on lethal and reproductive endpoints of the harpacticoid copepod Tigriopus fulvus

Molecular effects of copper on the reproductive system of mytilus galloprovincialis

“…Recently, anthropogenic activities increased its presence in marine environments. Various negative effects of copper on the reproduction of some marine organisms, such as the copepod Tigriopus fulvus (Biandolino, Parlapiano, Faraponova, & Prato, ), the killifish Nothobranchius furzeri (Philippe et al, ), and the sea urchin Paracentrotus lividus (Gharred, Jebali, Belgacem, Mannai, & Achour, ), has been reported. Moreover, copper causes also zooplankton diapause production (Aránguiz‐Acuña & Pérez‐Portilla, ).…”

Development of metal adaptation in a tropical marine zooplankton

“…We did not observe mortality of Cu-exposed copepods in the F1 generation, which is in agreement with the result of the range finding test (Supplementary Information S1). Cu exposure concentration of 15 µg L −1 is approximately 20 and 70 times lower than the reported 48h-LC 50 of 310 µg Cu L −1 for Tigriopus fulvus 31 and 48h-LC 50 of 1024 µg Cu L −1 for T. japonicus 32 , respectively. Biandolino et al 31 showed that the number of nauplii per brood of T. fulvus was not affected by exposure to Cu concentrations of 15-60 µg L −1 , suggesting that Cu did not affect the embryonic development and hatching success.…”

“…Cu exposure concentration of 15 µg L −1 is approximately 20 and 70 times lower than the reported 48h-LC 50 of 310 µg Cu L −1 for Tigriopus fulvus 31 and 48h-LC 50 of 1024 µg Cu L −1 for T. japonicus 32 , respectively. Biandolino et al 31 showed that the number of nauplii per brood of T. fulvus was not affected by exposure to Cu concentrations of 15-60 µg L −1 , suggesting that Cu did not affect the embryonic development and hatching success. In this study, nauplii production of P. annandalei was lower in the Cu treatment compared to the control, which may be the result of a higher number of aborted egg sacs and a lower number of broods produced per female in Cu-exposed copepods.…”

“…In the present study, exposure to the ecologically relevant concentration of Cu did not affect survival and faecal pellet production but strongly reduced nauplii production. Nauplii production is a highly sensitive indicator of Cu toxicity in copepods 31 . We did not observe mortality of Cu-exposed copepods in the F1 generation, which is in agreement with the result of the range finding test (Supplementary Information S1).…”

“…Pham, Q.H., and Dinh K.V., in prep.). Other copepod species such as T. fulvus also shows a higher number of aborted egg sacs and a lower number of broods in Cu-exposed females 31 . Importantly, a lower nauplii production was observed while the faecal pellet production (a proxy for grazing rate 10,25,33 ) was similar between Cu-exposed individuals and the control, indicating a higher energy expenditure on somatic maintenance and other physiological responses to deal with Cu.…”