2004
DOI: 10.1046/j.1600-079x.2003.00109.x
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Pinealectomy induces malformation of the spine and reduces the mechanical strength of the vertebrae in Atlantic salmon, Salmo salar

Abstract: This study describes the long-term effects of surgical ablation of the pineal gland on the spine of 3-yr-old Atlantic salmon (Salmo salar L.) with a mean weight of 3.2 kg. Radiographic examinations showed that 82% of the pinealectomized fish developed marked lateral (scoliosis) and dorso-ventral spinal curvatures. The proportions of the individual vertebral bodies and their mechanical properties were also altered. The stiffness, yield limit and resilience of the vertebral bodies, as measured by compression in … Show more

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Cited by 108 publications
(97 citation statements)
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References 24 publications
(38 reference statements)
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“…In addition, many experimental conditions have been shown to be able to induce skeletal malformations, such as pinealectomy, exposure to radiations, or electricity [15][16][17] . The persistent request of new fish varieties has also leaded to selective breeding of several lineages showing characteristic spinal abnormalities such as the so called "Balloon Kissing Gourami" (Helostoma temminkii, Cuvier 1829) "Balloon Molly" (Poecilia velifera, Regan 1914), "Blood Parrot Cichlid" (Heros severus x Amphilophus citrinellus hybrid) [18] and ornamental goldfish (Carassius auratus L.).…”
Section: Discussionmentioning
confidence: 99%
“…In addition, many experimental conditions have been shown to be able to induce skeletal malformations, such as pinealectomy, exposure to radiations, or electricity [15][16][17] . The persistent request of new fish varieties has also leaded to selective breeding of several lineages showing characteristic spinal abnormalities such as the so called "Balloon Kissing Gourami" (Helostoma temminkii, Cuvier 1829) "Balloon Molly" (Poecilia velifera, Regan 1914), "Blood Parrot Cichlid" (Heros severus x Amphilophus citrinellus hybrid) [18] and ornamental goldfish (Carassius auratus L.).…”
Section: Discussionmentioning
confidence: 99%
“…In Atlantic salmon (Salmo salar L.), continuous light (Fjelldal et al, 2005) and pinealectomy (Fjelldal et al, 2004) are associated with lower vertebral mineral content and mechanical strength. In salmon, the response to change in photoperiod is thought to be primarily mediated by the pineal gland, and continuous light suppresses nocturnal melatonin production from this gland (Porter et al, 1999).…”
Section: Introductionmentioning
confidence: 99%
“…Melatonin per se decreases tartrate-resistant acid phosphatase and alkaline phospha-tase activities in cultured goldfish (Carassius auratus) scales and counteracts stimulatory effects of estradiol on these enzymes (Suzuki and Hattori, 2002). These phosphatases are the markers of choice for osteoclastic and osteoblastic activity and it thus follows that melatonin influences cal cium physiology of scales (and bone) in fish (Fjelldal et al, 2004).…”
Section: Introductionmentioning
confidence: 99%