Effect of water currents on the development of skeletal deformities in sea bass (Dicentrarchus labrax L.) with functional swimbladder during postlarval and nursery phase

Divanach, P.; Papandroulakis, Nikos; Anastasiadis, P; Koumoundouros, George; Kentouri, M.

doi:10.1016/s0044-8486(97)00072-0

Cited by 138 publications

(112 citation statements)

References 12 publications

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“…Aberrations in other specimen of S. esocinus with flat caudal fin base and widely spaced caudal fin lobes is due to some mechanical injury in fast flowing waters. Fish anomalies due to currents have also earlier been reported by Backiel et al [12], Chaitan [13], Divanach et al [14] and Dutta [15]. …”

Section: Resultssupporting

confidence: 68%

Record of an Abnormal Schizothoraichthys esocinus (Heckel) from the Himalayan River Chenab Draining Jammu Region of the J&K State, India

Sps¹

2016

J Aquac Res Development

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Two deformed Specimens of Schizothoraichthys esocinus were observed among the fish collections from the river Chenab and is the first record for any Himalayan stream. One specimen was recognised by its flat caudal fin base and widely spaced caudal fin lobes. The other showed the post dorsal truncated body with a trough, ventral anal bulge and dome in the caudal peduncle region. X-ray analysis revealed hook shaped vertebral column and aberrations in the various vertebrae and caudal fin bones. Possible cause of aberrations in torrential non polluted river is mechanical injury induced by currents during embryonic development.

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Section: Resultssupporting

confidence: 68%

Record of an Abnormal Schizothoraichthys esocinus (Heckel) from the Himalayan River Chenab Draining Jammu Region of the J&K State, India

Sps¹

2016

J Aquac Res Development

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“…Strenuous exercise [evoked by, for example, high current velocity (Backiel et al, 1984) or caudal fin removal (Kihara et al, 2002)] is known to induce lordosis in several teleosts. Lordosis is characterized by extra-mineralized vertebrae, accompanied by an abnormal ventrad curvature of the vertebral column (Chatain, 1994;Divanach et al, 1997;Paperna, 1978). Similar deformities have been reported in elasmobranchs Mammalian bone is an active tissue in which osteoblasts and osteoclasts balance bone mass.…”

mentioning

confidence: 79%

Adaptive bone formation in acellular vertebrae of sea bass(Dicentrarchus labrax L.)

Kranenbarg

Cleynenbreugel

Schipper

et al. 2005

Journal of Experimental Biology

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SUMMARY Mammalian bone is an active tissue in which osteoblasts and osteoclasts balance bone mass. This process of adaptive modelling and remodelling is probably regulated by strain-sensing osteocytes. Bone of advanced teleosts is acellular yet, despite the lack of osteocytes, it is capable of an adaptive response to physical stimuli. Strenuous exercise is known to induce lordosis. Lordosis is a ventrad curvature of the vertebral column, and the affected vertebrae show an increase in bone formation. The effects of lordosis on the strain distribution in sea bass(Dicentrarchus labrax L.) vertebrae are assessed using finite element modelling. The response of the local tissue is analyzed spatially and ontogenetically in terms of bone volume. Lordotic vertebrae show a significantly increased strain energy due to the increased load compared with normal vertebrae when loaded in compression. High strain regions are found in the vertebral centrum and parasagittal ridges. The increase in strain energy is attenuated by a change in architecture due to the increased bone formation. The increased bone formation is seen mainly at the articular surfaces of the vertebrae, although some extra bone is formed in the vertebral centrum. Regions in which the highest strains are found do not spatially correlate with regions in which the most extensive bone apposition occurs in lordotic vertebrae of sea bass. Mammalian-like strain-regulated bone modelling is probably not the guiding mechanism in adaptive bone modelling of acellular sea bass vertebrae. Chondroidal ossification is found at the articular surfaces where it mediates a rapid adaptive response, potentially attenuating high stresses on the dorsal zygapophyses.

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“…Landmarks were also placed to the obtained pictures using an image processing software (tpsDig2, Rohlf, version 5.0.3.32), for the accurate measurement of the TL, maximum body depth (BD max ), body depth at the anus (BD) and caudal peduncle depth (CpD). Moreover, selective double staining of cartilage and bone tissue was performed on the specimens after the trials and the stained samples were examined under a stereoscope for skeletal deformities (Divanach et al 1997;Koumoundouros et al 1997aKoumoundouros et al , b, 2001b. The abnormal fish were discarded from the analysis.…”

Section: Methodsmentioning

confidence: 99%

Effect of developmental temperature on swimming performance of zebrafish (Danio rerio) juveniles

2010

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It is widely known that water temperature affects the swimming capacity of fish. But the effect of the rearing temperature on the swimming ability of the fish at later stages, has not had similar attention. In this study, four populations of zebrafish, were reared in different water temperatures (22, 25, 28 and 31°C) and after being acclimatized in a common temperature (26.5°C) for over a month, they were subjected to swimming trials in order to evaluate the maximum relative critical velocity (RU crit ) in each case. Fish that were reared in 22°C showed statistically significant lower performance than the ones reared in 31°C (7.72 ±0.17 vs. 8.79±0.28, means ± S.E.). Possible explanations for the observed differentiation could be the effect of early life temperature on fish muscle ontogeny or on body shape.

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Effect of water currents on the development of skeletal deformities in sea bass (Dicentrarchus labrax L.) with functional swimbladder during postlarval and nursery phase

Cited by 138 publications

References 12 publications

Record of an Abnormal Schizothoraichthys esocinus (Heckel) from the Himalayan River Chenab Draining Jammu Region of the J&K State, India

Record of an Abnormal Schizothoraichthys esocinus (Heckel) from the Himalayan River Chenab Draining Jammu Region of the J&K State, India

Adaptive bone formation in acellular vertebrae of sea bass(Dicentrarchus labrax L.)

Effect of developmental temperature on swimming performance of zebrafish (Danio rerio) juveniles

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