Abstract
Lutjanids are marine fish and commonly inhabit coral reefs, which have migratory habits and feed in a general way, due to these characteristics, are susceptible to infections by parasites, such as cuculanid nematodes. This work aimed to report for the first time, the occurrence of Dichelyne (Dichelyne) bonacii in Brazil, in two new hosts, Lutjanus analis and Rhomboplites aurorubens, acquired from local artisanal fishermen at the Aracaju city public fishing terminal (10 ° 54'17 "S37 ° 2'56" W), northeast coast of Brazil. Adult nematodes were collected from the intestinal tract of the hosts, clarified in Aman's Lactophenol and were briefly described here. Three adult males and five gravid females were found, indicating that the two species of fish acted as definitive hosts. Currently, this species of parasite has been reported only from fish collected in the coast of Mexico, which makes this work the first record of this parasite in Brazilian coastal waters. The results show that probably the range of hosts and the distribution of D. (Dichelyne) bonacii is not as restricted as data pointed in the literature, being a little wider, extending also to waters that bathe the Brazilian coast.
Highlights
Lutjanids are predominantly marine fish, cosmopolitan, migratory and general carnivorous
Fishes were purchased according to availability at the public fishing terminal of Aracaju (10 ° 54’17 “S37 ° 2’56” W) from local fishermen
Fishes were properly stored and transported to the laboratory, where they were identified as Lutjanus analis Cuvier, 1828 (69 specimens analyzed) and Rhomboplites aurorubens Cuvier, 1829 (1 specimen analyzed) according to Allen (1985)
Summary
Lutjanids are predominantly marine fish, cosmopolitan, migratory and general carnivorous. Large deirids, located near the posterior region of the esophagus (Figure 1a, I).
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