title: [Effects of temperature on the embryonic development and larval growth of Sepia lycidas].
abstract: A single-factor experiment was conducted to study the effects of different temperature (15, 18, 21, 24, 27, 30, and 33 degrees C) on the embryonic development and larval growth of Sepia lycidas, aimed to search for the optimum temperature for the development and growth of S. lycidas. The results showed that temperature had significant effects on the embryonic development and larval growth of S. lycidas (P < 0.05). The suitable temperature for hatching ranged from 21 degrees C to 30 degrees C, and the optimum temperature was 24 degrees C. At the optimum temperature, the hatching rate was (93.3 +/- 2.9)%, incubation period was (24.33 +/- 0.58) d, hatching period was (6.00 +/- 1.00) d, completely absorked rate of yolk sac was (96.4 +/- 3.1)%, and newly hatched larvae mass was (0.258 +/- 0.007) g. The effective accumulated temperature model was N = 284.42/(T-12.57). The suitable temperature for the larval survival and growth ranged from 21 degrees C to 30 degrees C, and the optimum temperature was from 24 degrees C to 27 degrees C. At the optimum temperature, the survival rate ranged from 70.0% to 73.3%, and the specific growth rate was from 2.4% to 3.8%.
authors.affiliation: College of Ocean, Ningbo University, Ningbo 315211, Zhejiang, China. yuxian966@163.com
authors.forename: Xia-Min
authors.initials: XM
authors.lastname: Jiang
authors.forename: Rui-Bing
authors.initials: RB
authors.lastname: Peng
authors.forename: Jiang
authors.initials: J
authors.lastname: Luo
authors.forename: Feng
authors.initials: F
authors.lastname: Tang
mesh_terms: D000818:Animals; D004625:Embryo, Nonmammalian / Q000196:embryology; D047108:Embryonic Development / Q000502:physiology*; D007814:Larva / Q000254:growth & development; D049833:Sepia / Q000196:embryology* / Q000254:growth & development*; D013696:Temperature