Articles

Title:	Remarks on the morphology and the life cycle of Rhithropanopeus harrisii ssp tridentatus (Maitland) from the Dead Vistula River
Authors:	Szaniawska Anna Normant Monika Miernik Justyna
Abstract:	The aim of this study was to characterize the mud crab Rhithropanopeus harrisii ssp. tridentatus that occurs in the Dead Vistula. Of the 220 specimens collected, 57% were males and 43% were females. Females with eggs on the pleopods were present throughout June, July and August. The carapace width varied from 4.9 mm to 22.4 mm and length ranged from 4.1 mm to 16.3 mm. The highest frequency (49.1%) was observed in the 9.1-13.5 mm width class. The wet weight of the specimens varied from 0.045 to 4.299 g. The results obtained indicate that no significant changes in the morphology or life cycle of the R. harrisii tridentatus from the Dead Vistula River have occurred in the last 30 years.
DOI:
Type of paper:	Original research paper
Pages:	93 to 102
Cytation:	Normant M., Miernik J., Szaniawska A., 2004, Remarks on the morphology and the life cycle of Rhithropanopeus harrisii ssp tridentatus (Maitland) from the Dead Vistula River, Ocean. Hydrob. Studies, 33(4): 93-102
Keywords:	Rhithropanopeus harrisii ssp. tridentatus, alien species, Vistula River estuary
Year:	2004
Category:
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