Hyperostosis in Three Fish Species Collected From the Sea of Oman

Jawad, Laith A.

doi:10.1002/ar.22564

Cited by 6 publications

(7 citation statements)

References 7 publications

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“…In the studies mentioned above, the hyperostosis was larger structures than the presently observed calluses. Interestingly, hyperostosis has also been reported with similar size and macroscopic shape as the calluses reported herein (Jawad, ), and in both haemal (Gauldie & Czochanska, ) and neural (Jawad & Bannai, ) spines.…”

Section: Discussionsupporting

confidence: 85%

Radiological changes during fracture and repair in neural and haemal spines of Atlantic cod (Gadus morhua)

Fjelldal

Meeren

Fraser

et al. 2018

Journal of Fish Diseases

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Although spinal injuries in fish have been associated with electric stimuli applied during electrofishing and electrotrawling, bone fracture and repair in the axial skeleton have yet not been studied. To study this, we radiographed a group (n = 64) of individually tagged farmed cod twice, with a 1‐year interval (∼36 cm at first and ∼ 50 cm at second inspection). The study focus was on the neural and haemal spines. These structures are un‐paired and are not covered by other bones laterally, making them useful for radiological studies on axial skeletal fracture in live fish. At the first examination, four animals showed radiological changes in their neural and haemal spines. Two animals had fractures, and two had callus formations. One year later, at the second radiological examination, the fractures had developed into calluses or into normal morphology, and calluses either remained as calluses or had developed into normal morphology. A further 14 animals that were all normal at the first inspection had developed changes in their neural and haemal spines, both fractures and callus formations. This is the first record of spontaneous bone fracture in fish; the fractures observed occurred under normal farming conditions and were not induced. The results show that cod have a functional fracture healing mechanism in their neural and haemal spines. The findings are discussed in relation to fish hyperostosis.

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Section: Discussionsupporting

confidence: 85%

Radiological changes during fracture and repair in neural and haemal spines of Atlantic cod (Gadus morhua)

Fjelldal

Meeren

Fraser

et al. 2018

Journal of Fish Diseases

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“…The distinct appearance of the strip may indicate that a fracture has induced the hyperostosis, and that the excessive bone deposition may be a mechanism to stabilize the haemal spine, or a stage in a fracture repair mechanism, involving callus formation and remodelling into normal morphology (discussed in Fjelldal et al., ). Excessive bone deposition in fish has earlier been termed calluses (Fjelldal et al., ), hyperostosis (Gauldie & Czochanska, ; Jawad, ; Jawad, Wallace, & Dyck, ; Smith‐Vaniz, Kaufman, & Glowacki, ), and osteomas (Lima, Souza, Mesquita, Souza, & Chinelli, ), and probably reflects a variety of pathological and un‐pathological conditions.…”

Section: Discussionmentioning

confidence: 99%

Vertebral column deformity in adult wild haddock (Melanogrammus aeglefinus)

Jawad

Hansen

Meier

et al. 2018

Journal of Fish Diseases

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This study describes radiological malformations in the vertebral column of adult sexually mature wild haddock, Melanogrammus aeglefinus collected from Masfjorden, Western Norway, in 2014 and 2015. There were seven deformed fish (33% of sampled fish), five with mild deformities and two with severe deformities. The deformity types discovered were lordosis, vertebra body asymmetry, compression, fusion (ankylosis), remodelling, and haemal spine hyperostosis. The two severely deformed fish were as follows: (a) one specimen with 29 deformed vertebrae within the region vertebrae nos. 1–30, including two sites of lordosis; (b) one specimen with 15 deformed vertebrae within the region vertebrae nos. 31–52 (most caudal vertebrae). The results of this study show that wild haddock can survive severe vertebra deformities, both in the trunk and tail region, and reach adulthood and sexual maturity. Whether normal nondeformed wild conspecifics would mate and spawn with these individuals and thereby complete the life cycle of the deformed individuals is, however, unknown. A possible link between bone fracture and fish hyperostosis is discussed.

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“…). The hyperostotic bone appears externally swollen in appearance, though histological examination reveals that only the periosteum shows increased ossification, while the remaining cellular tissue undergoes resorption resulting in only trabecular bone remaining (Meunier & Desse, ; Jawad, ). In fishes, hyperostosis is a localized area of osteocytic bone, within an otherwise anosteocytic skeletal element (Smith‐Vaniz et al.…”

Section: Introductionmentioning

confidence: 99%

“…Representative examples of hyperostosis in fishes indicated in red. (A) Hyperostosis in Drepane longimana (modified from radiograph available on Australian Museum, http://australianmuseum.net.au/image/hyperostosis-in-a-banded-sicklefish; Jawad, ). (B) Alectis alexandrinus (modified from Smith‐Vaniz et al.…”

Section: Introductionmentioning

confidence: 99%

“…Hyperostotic bone (synonymous with 'Tilly bones', swollen bones, and sometimes referred to as exostosis although this term implies growth of a new bone or cartilage) is described as an excessive benign growth along bone that stems from bone, periosteum, or articular or epiphyseal cartilage (Schluter et al 1992;Smith-Vaniz et al 1995). The hyperostotic bone appears externally swollen in appearance, though histological examination reveals that only the periosteum shows increased ossification, while the remaining cellular tissue undergoes resorption resulting in only trabecular bone remaining (Meunier & Desse, 1994;Jawad, 2013). In fishes, hyperostosis is a localized area of osteocytic bone, within an otherwise anosteocytic skeletal element (Smith-Vaniz et al 1995).…”

Section: Introductionmentioning

confidence: 99%

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Presence of repeating hyperostotic bones in dorsal pterygiophores of the oarfish, Regalecus russellii

2016

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Hyperostosis, excessive bone growth along bone that stems from bone, periosteum or articular or epiphyseal cartilage, occurs in at least 22 families of fishes most of which are tropical or subtropical marine species. While the presence of hyperostosis is well documented in fishes, the mechanism driving the development of the excessive bone growth is unclear. This study documented hyperostosis along the dorsal pterygiophores in both sexes of oarfish, Regalecus russellii; however, it was not present in all specimens examined. This is the second lampridiform fish with hyperostoses and the first case documented in a deeper-water, epi-mesopelagic fish. In oarfish, the majority of the dorsal pterygiophores tissues are poorly mineralized, anosteocytic bones with some fish displaying localized stiffened, hyperostotic growths near the distal edge. Oarfish lack a swim bladder so they must continuously beat their bi-directional dorsal fin to maintain position within the water column while engaged in locomotory behavior. These fishes have areas of localized, hyperostotic skeletal elements along the dorsal pterygiophores that, presumably, function as a stiffened lever system to support fin undulation. It was noted that hyperossification was not present in all fish examined and was only documented in fish with total lengths greater than 3 m.

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Hyperostosis in Three Fish Species Collected From the Sea of Oman

Cited by 6 publications

References 7 publications

Radiological changes during fracture and repair in neural and haemal spines of Atlantic cod (Gadus morhua)

Radiological changes during fracture and repair in neural and haemal spines of Atlantic cod (Gadus morhua)

Vertebral column deformity in adult wild haddock (Melanogrammus aeglefinus)

Presence of repeating hyperostotic bones in dorsal pterygiophores of the oarfish, Regalecus russellii

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