Biometric and statistical investigations on the cnidoma of the genus Hydra (Cnidaria, Hydrozoa)

Iheringia. Série Zoologia

Maria I. Deserti¹  Mauricio O. Zamponi¹ 

[1] ,Universidad Nacional de Mar del Plata Facultad de Ciencias Exactas y Naturales Departamento de Ciencias MarinasMar del Plata,Argentina

关键词: Nematocysts;    biometry;    statistical analysis;    Nematocistos;    biometría;    análisis estadísticos;   

DOI  :  10.1590/S0073-47212012000300008

来源: SciELO

【 摘 要 】

This paper deals about the nematocysts like a source of biometric information for comparison between the species Hydra vulgaris Pallas, 1766, Hydra vulgaris pedunculata Deserti et al., 2011 and Hydra pseudoligactis (Hyman, 1931). This biometric tool lets us carry out statistical comparisons and adding these results to the identification of specimens from different classificatory groups. In this particular study, we obtained significant differences between species, individuals of each species and nematocysts type when compared the biometry of its nematocysts. Another result was the variation in of particular nematocysts, like atrichous isorhiza and holotrichous isorhiza for the species H. vulgaris in relation to the column size.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License