Endocrine disruption in a marine amphipod? field observations of intersexuality and de-masculinisation

Alex Ford, T. Fernandes, S. Rider, P. Read, C. Robinson, I. Davies

Research output: Contribution to journalArticlepeer-review


Intersexuality has been found in both males and females of the marine/estuarine amphipod, Echinogammarus marinus, at polluted and reference sites in East Scotland. Polluted sites had significantly more intersex specimens than reference sites, however the cause of intersexuality is unclear. Discriminant analysis of morphometric data showed that normal male specimens from the most polluted site resembled pooled intersex males, suggesting that subtle endocrine disruption (ED) maybe occurring in these otherwise apparently normal males. The main discriminating character was gnathopod size, recognised to be under androgenic gland control. The association of distinctive morphometry with intersexuality may provide a new approach to biomarkers of ED in crustaceans. The opportunities for other novel biomarkers, for example biochemical or behavioural markers, may also be explored through study of intersex animals.
Original languageEnglish
Pages (from-to)169-173
Number of pages5
JournalMarine Environmental Research
Issue number2-5
Publication statusPublished - 2004


Dive into the research topics of 'Endocrine disruption in a marine amphipod? field observations of intersexuality and de-masculinisation'. Together they form a unique fingerprint.

Cite this