Document of bibliographic reference 404391

BibliographicReference record

Type

Bibliographic resource

Type of document

Journal article

BibLvlCode

AS

Title

A new Ergasilus Nordmann, 1832 species (Copepoda: Cyclopoida, Ergasilidae) from gills of two freshwater fishes at Al-Gharraf river, Southern Iraq

Abstract

A survey of parasitic crustaceans on the gills of two freshwater fish species in Southern Iraq, specifically in the Al-Gharraf River (Thi Qar Province), was conducted from December 2022 to December 2023. The results led to the discovery of a new species: Ergasilus luteusi sp. nov., found on both the yellow barbell, Carasobarbus luteus (Heckel) (type host), and the Abu mullet, Planiliza abu (Heckel). This new species shares a guitar-shaped cephalothorax with 11 other species of Ergasilus; however, Ergasilus luteusi sp. nov. differs from all these species, except for E. iraquensis Amado, 2001, in the armature of legs 1-4. Ergasilus luteusi is very similar to E. iraquensis, but it can be distinguished by possessing three setae in the terminal segment of leg 5 (only two setae in E. iraquensis). The ratio of the second endopod segment to the first endopod segment of the antenna is 65% in E. luteusi, compared to 80% in E. iraquensis. Additionally, the length-to-width ratio of the caudal rami in the new species is 1.5:1, whereas it is 1.1:1 in E. iraquensis.

Bibliographic citation

Al-Sahlany, B.A.A.; Adday, T.K.; Ali, A.H. (2024). A new Ergasilus Nordmann, 1832 species (Copepoda: Cyclopoida, Ergasilidae) from gills of two freshwater fishes at Al-Gharraf river, Southern Iraq. Egypt. J. Aquat. Biol. Fish. 28(6): 633-643. https://dx.doi.org/10.21608/ejabf.2024.392431

Topic

Fresh water

Is peer reviewed

true

Access rights

open access

Is accessible for free

true