Mousavi Nadushan, R. & M. Ghiasabadi. (2022). First record, taxonomy and temporal/spatial dispersion pattern of species in genus Pontella (Crustacea:Copepoda:Calanoida) from coastal/estuarine waters of Bushehr. Journal of Oceanography (JOC), Iran. 13 (51): 70- 76, Fall 2022 (Farsi).

496720

Mousavi Nadushan, R. & M. Ghiasabadi

2022

13 (51): 70- 76, Fall 2022 (Farsi)

Publication

Available for editors   [request]

inhabitants of surface waters (0-30 m layer) from tropical to temperate regions, they are important/special creatures for zoogeographic investigation. All species and even congeneric species might have mechanisms which reduce the interspecific competition such as different occurrence period as dominant, distributional patterns and feeding habits connected with temperature and salinity. Therefore considering the importance of this genus and its sp ecies and considering that there is no information about their identification, description of morphological differentiation of congeneric species, presence and their distributions in the Iranian waters, this research was proposed to taxonomic study, spatia l distribution and temporal succession of Pontella species. Methods: Zooplankton samples were collected from six stations during an annual period of summer 1996 to spring 1997 in the early and middle days of each season, at coastal/estuarine northern waters of Bushehr, and in each sampling site, the depth of sampling site, water transparency, pH and salinity were measured. Findings: In this study, two congeneric species in the genus of Pontella Dana, 1852 including Pontella danae var. ceylonica and Pontella investigatoris were first identified/described from Persian Gulf and Oman Sea. Also Pontella danae var. ceylonica was recognized on the basis of female specimens, and Pontella investigatoris was known on the basis of male specimens, and a co-occurrence of one male (P investigatoris ) and 2 female at the most samples was accounted. Based on the result of dbRDA, the most important and effective environmental parameters on dispersion pattern of P. investigatoris were salinity and depth, and the most important and effective environmental parameters on dispersion pattern of P. danae var. ceylonica were depth, salinity, transparency depth, respectively. Consequently the results of this study demonstrated that two congeneric identified species are marine, have a tendency to offshore waters. Conclusion: he findings of this study showed that there is no original description of congeneric species for the northern waters of Persian Gulf and Oman Sea. Therefore the present study provided full description of Pontella species. Morphological description and relationship/similarity of other congeneric genera from Pontellidae is also necessary and this can provide the basis for molecular/genetic analysis and valuable information about congeneric zooplankton from Pontellid family.

RIS (EndNote, Reference Manager, ProCite, RefWorks)
BibTex (BibDesk, LaTeX)

[Back to search]