Aberrant individuals of Neomysis integer and other Mysidacea: intersexuality and variable telson morphology
Mees, J.; Fockedey, N.; Dewicke, A.; Janssen, C.R.; Sorbe, J.-C. (1995). Aberrant individuals of Neomysis integer and other Mysidacea: intersexuality and variable telson morphology. Neth. J. Aquat. Ecol. 29(2): 161-166 In: Netherlands Journal of Aquatic Ecology. Kluwer Academic Publishers/Netherlands Society of Aquatic Ecology: Bilthoven. ISSN 1380-8427; e-ISSN 2214-7098, more |  |
| Keywords | Abnormalities
Aquatic organisms > Estuarine organisms
Biology > Organism morphology > Animal morphology
Biology > Physiology
Environments > Aquatic environment
Water > Brackish water
Water bodies > Coastal waters > Coastal landforms > Coastal inlets > Estuaries
Mysida [WoRMS]; Neomysis integer (Leach, 1814) [WoRMS]
Brackish water |
| Abstract | Intersexuality in the mysid Neomysis integer is described from samples collected in the Elbe (north Germany), Eems-Dollard (north Netherlands), Westerschelde (south-west Netherlands) and Gironde (south-west 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 estuarine N. integer populations. Both abnormalities seem to be rare in the other common mysid species in the study area: only one intersexual Gastrosaccus spinifer and one Schistomysis kervillei with an aberrant telson were recorded. |
| Dataset | - Beyst, B.; Fockedey, N.; Hostens, K.; Mees, J.; Marine Biology Research Group - Ugent: Belgium; (2004): Ecological hyperbenthic data of the Scheldt estuary: historical data (1988-2001). Marine Data Archive., more
|
|
