Some ecological aspects of the copepod parasites of the common hake, merluccius hubbsi, from the argentineuruguayan coasts |
| |
Authors: | Jorge Alejandro Etchegoin Norma Haydee Sardella |
| |
Abstract: | A total of 2164 common hake Merluccius hubbsi captured in the Argentine-Uruguayan Common Fishing Zone was examined for parasitic copepods. The fish were infested with Chondracanlhus palpifer and Neobrachietia insidiosa f. lageniformis, the former parasitizing the buccal cavity and the latter the branchial arches. C. palpifer showed an increase in both prevalence and intensity in relation to the host size; infestation with N. insidiosa f. lageniformis decreased with increasing length of hake. Attachment site preferences and variations in the parasite distribution patterns as related to the host biology were observed. Evidence of negative association between copepod species and seasonal changes in the parasite composition was also found. |
| |
Keywords: | Copepod parasites host-parasite interactions prevalence intensity Merlucciushubbsi Chondracanlhus palpifer Neobrachiella insidiosa lageniformis Argentine-Uruguayan coasts |
本文献已被 ScienceDirect 等数据库收录! |