1 research outputs found
Phenotypic plasticity during early ontogeny in cultured turbot (Scophthalmus maximus): changes in dorsal and anal fin ray counts by water temperature
Plastic responses to environmental conditions are crucial
among ectothermic organisms, and any traits induced early
in ontogeny may have long-term effects. Here, we studied
how turbot larvae altered their morphology in three different
thermal environments and assessed whether different thermal
regimes affected the survival, growth, development and morphology
of juvenile turbot at the end of metamorphosis.
Therefore, newly hatched Turbot (Scopthalmus maximux L.)
larvae were divided into three groups and reared at 14, 18
and 22°C until 80 days after hatching. Environmental temperature
was seen to affect several turbot traits. Low temperature
induced low dorsal and anal fin ray counts, but had no
effect on gross body morphology. There were differences in
growth and skeletal development rates, but no differences in
survival. There were also no differences in the skeletal malformations
occurring in response to environmental temperature
treatment. Collectively, these results supported the idea
of the existence of a thermal plastic response, as found, in
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