Anisakid infection in scabbardfishes, Aphanopus carbo and A. intermedius (Perciformes: Trichiuridae), from the Eastern Atlantic

Hermida, Margarida; Simón, Clara; Amorim, Antonieta; Delgado, J. M. P. Q.

doi:10.1016/j.rsma.2020.101538

Cited by 1 publication

(1 citation statement)

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“…However, other bones such as the premaxillae, maxillae, coracoids, rays, and spines of the dorsal n, among others, also exhibit this condition (Murty 1967;Fierstine 1968 The Trichiuridae family is characterized by sh with elongated bodies, with a tapered tail or a diminutive forked caudal n. These sh are adaptable, thriving in a diverse range of habitats and depths (Nakamura and Parin 1993). Spanning a wide geographical distribution (Nelson et al 2016; Froese and Pauly 2023), they are recognized as a vital sheries resource in numerous regions (Hermida et al 2020). The condition of hyperostosis is well-documented in the Trichiuridae family, impacting both current and ancient commercial sh species (James 1960;Olsen 1971 James (1960) examined four distinct species from the Trichiuridae family found in Indian waters, but only identi ed the presence of hyperostosis in T. lepturus.…”

Section: Introductionmentioning

confidence: 99%

Description of Hyperostotic Bones Pattern in Hairtail Trichiurus lepturus

Tuna,

Calixto,

Mesquita

2023

Preprint

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Several studies have documented the occurrence of hyperostosis, a bone condition that results in bone thickening, in specimens of Trichiurus lepturus, an important commercial species. A total of 102 Hairtail fish samples from Rio de Janeiro, Brazil, were obtained from artisanal fishers and divided into four size classes. Biometric measurements and radiographic images were taken for all exemplars. Hyperostosis was observed in 69.69% of the individuals, with the first detection of the condition in an exemplar measuring from 385 mm in total length. The affected skeletal regions included the Cleithrum, Supraoccipital, Frontal, Dorsal Pterygiophores, and Hemal Spines. An increase in the occurrence frequency of hyperostosis was noticed in correlation with size, suggesting a connection with the aging process and an ontogenetic pattern for the species. Histological analysis indicated a high remodeling process in affected structures. Additionally, we highlight the species' daily vertical migration, associated with temperature variation, as a potential contributor to the onset of this osteological condition in marine teleosts.

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