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We provide experimental evidence for a direct link between embryonic metabolism and longevity in the larval stage of a marine fish when food resources are limited. Since growth rates of otoliths are closely related to metabolic rates, the area inside the hatch check (i.e., deposition of otolith matrix during embryonic development) is representative of inherent differences in metabolic rates. When...
Abstract It has been hypothesized that marine fish larvae in the advanced stages of starvation would show increased density (=mass volume1) from water loss due to osmoregulation failure. Changes in larval buoyancy are currently attributed to swim bladder regulation and protein synthesis or catabolism. Osmoregulation-related changes in density is an alternative mechanism, the importance of which remains...
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