Aberrant individuals ofNeomysis integer and other Mysidacea: Intersexuality and variable telson morphology |
| |
| Authors: | Jan Mees Nancy Fockedey Ann Dewicke Colin R Janssen Jean-Claude Sorbe |
| |
| Institution: | (1) Marine Biology Section, Zoology Institute, University of Ghent, K.L. Ledeganckstraat 35, B-9000 Gent, Belgium;(2) Laboratory for Biological Research in Aquatic Pollution, University of Ghent, J. Plateaustraat 22, B-9000 Gent, Belgium;(3) Laboratoire d'Océanographie Biologique, Université de Bordeaux 1, 2 rue Jolyet, F-33120 Arcachon, France |
| |
| Abstract: | Intersexuality in the mysidNeomysis integer is described from samples collected in the Elbe (north Germany), Eems-Dollard (north Netherlands), Westerschelde (south-west
Netherlands) and Gironde (southwest France) estuaries. Individuals which had an irregularly shaped or nearly symmetrically
rounded telson, rather than a typically truncated one, were also recorded from the four populations studied. A culture experiment
with damaged specimens revealed that all types of abnormal telson morphology found in the field can result from regeneration
of damaged parts. It is concluded that both intersexuality and aberrant telson morphology are widespread phenomena among estuarineN. integer populations. Both abnormalities seem to be rare in the other common mysid species in the study area: only one intersexualGastrosaccus spinifer and oneSchistomysis kervillei with an aberrant telson were recorded. |
| |
| Keywords: | mysid estuary morphology regeneration |
| 本文献已被 SpringerLink 等数据库收录！ |
|
