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1 May 2008 Morphological Variation among Populations of Atyaephyra desmarestii () (Decapoda: Caridea: Atyidae) from Freshwater Habitats of Northwestern Greece
Chryssa Anastasiadou, Ioannis D. Leonardos
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Abstract

Multivariate statistical methods were employed to study the morphological variation of the freshwater shrimp (Atyaephyra desmarestii), sampled from four distinct freshwater habitats of northwestern Greece. Principal Component Analysis (PCA) and Discriminant Function Analysis (DFA) were used in order to determine morphometrical differences among the biological categories (males, females and ovigerous females) and sampling sites. Statistical analysis of A. desmarestii morphometrical and population data showed that body heights and growth of appendages are correlated to biological category. Females found to have higher values for the measured body heights than males. On the other hand, morphometrical variables related mainly to body lengths such as rostral, telson and pleon lengths, were observed to be correlated to the study sites. Characters related to the swimming capacity, such as telson length, telson width, and pleon lengths, were generally found to have higher values in ovigerous females. Furthermore, among the four ecosystems, certain variables demonstrated higher values in the fluvial ecosystems and lower values in the lacustrine.

Chryssa Anastasiadou and Ioannis D. Leonardos "Morphological Variation among Populations of Atyaephyra desmarestii () (Decapoda: Caridea: Atyidae) from Freshwater Habitats of Northwestern Greece," Journal of Crustacean Biology 28(2), 240-247, (1 May 2008). https://doi.org/10.1651/0278-0372(2008)028[0240:MVAPOA]2.0.CO;2
Received: 14 April 2007; Accepted: 13 August 2007; Published: 1 May 2008
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KEYWORDS
Atyaephyra desmarestii
Atyidae
Decapoda
freshwater habitats
Greece
morphological variation
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