Ontogenetic behavior of farm-bred Russian sturgeon (Acipenser gueldenstaedtii) prelarvae in a diel photoperiodic cycle: behavioral modifications in response to light intensity

Autor: Eun Jeong Kim, Chulhong Park, Yoon Kwon Nam
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Fisheries and Aquatic Sciences, Vol 22, Iss 1, Pp 1-10 (2019)
Druh dokumentu: article
ISSN: 2234-1757
DOI: 10.1186/s41240-019-0118-3
Popis: Abstract Russian sturgeon (Acipenser gueldenstaedtii) is commercially important in Korea because its caviar is highly prized. Although the early ontogeny of the species has been described, behavioral modifications in response to various light intensities or diel photoperiodicity patterns have not been studied extensively. The objective of the present study was to examine the behavioral characteristics of hatchery-produced A. gueldenstaedtii prelarvae over a diel photoperiodic cycle. During a diel light cycle comprising 16 h of daylight (450 lx), 4 h of dim light (10 lx), and 4 h of darkness (
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