Reproduction of the wedge sole (Dicologoglossa cuneata Moreau) in captivity: spawning parameters and influence of the natural temperature

Reproduction of the wedge sole (Dicologoglossa cuneata Moreau) in captivity: spawning parameters... In this work, the wedge sole (Dicologoglossa cuneata) spawning under a natural thermocycle has been studied. The spawning parameters were similar to those of other flatfish in captivity, the relative fecundity being very high (1.7 ± 0.1 × 106 eggs kg female−1 per spawning season). The percentage of floating eggs decreased with time and was directly related to egg diameter, daily relative fecundity and fertilization rate. Nevertheless, the hatching rate variations were not correlated to any other spawning parameter. The temperature range during the spawning season was very wide (11–21°C) though the largest spawns occurred between 12 and 16°C. The natural temperature cycle influenced wedge sole egg production, the winter temperature minimum indicating the onset of spawning, but the variations in the reproductive season did not appear to affect the daily egg production. Future research should focus on the photoperiod and its interaction with temperature as key factor for spawning. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Reviews in Fish Biology and Fisheries Springer Journals

Reproduction of the wedge sole (Dicologoglossa cuneata Moreau) in captivity: spawning parameters and influence of the natural temperature

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Publisher
Springer Netherlands
Copyright
Copyright © 2010 by Springer Science+Business Media B.V.
Subject
Life Sciences; Zoology; Freshwater & Marine Ecology
ISSN
0960-3166
eISSN
1573-5184
D.O.I.
10.1007/s11160-010-9172-8
Publisher site
See Article on Publisher Site

Abstract

In this work, the wedge sole (Dicologoglossa cuneata) spawning under a natural thermocycle has been studied. The spawning parameters were similar to those of other flatfish in captivity, the relative fecundity being very high (1.7 ± 0.1 × 106 eggs kg female−1 per spawning season). The percentage of floating eggs decreased with time and was directly related to egg diameter, daily relative fecundity and fertilization rate. Nevertheless, the hatching rate variations were not correlated to any other spawning parameter. The temperature range during the spawning season was very wide (11–21°C) though the largest spawns occurred between 12 and 16°C. The natural temperature cycle influenced wedge sole egg production, the winter temperature minimum indicating the onset of spawning, but the variations in the reproductive season did not appear to affect the daily egg production. Future research should focus on the photoperiod and its interaction with temperature as key factor for spawning.

Journal

Reviews in Fish Biology and FisheriesSpringer Journals

Published: Aug 27, 2010

References

  • Spawning of captive Senegal sole (Solea senegalensis) under a naturally fluctuating temperature regime
    Anguis, V; Cañavate, JP
  • Survival rates of black sea turbot (Psetta maxima maeotica, L. 1758) broodstock captured by gill nets from different depths and their adaptation culture conditions
    Basaran, F; Samsun, N
  • A review of egg production by captive sole, Solea solea (L.)
    Baynes, SM; Howell, BR; Beard, TW
  • Spawning and larval husbandry of flounder (Paralichthys woolmani) and Pacific yellowtail (Seriola mazatlana), new candidate species for aquaculture
    Benetti, DD
  • Preliminary investigations on the effect of dietary lipid on the spawning performance and egg quality of black sea bass Centropristis striata L
    Bentley, CD; Watanabe, WO; Rezek, TC; Seaton, PJ
  • Influence of dietary soybean meal levels on growth, feed utilization and gut histology of Egyptian sole (Solea aegyptiaca) juveniles
    Bonaldo, A; Roem, AJ; Pecchini, A; Grilli, E; Gatta, PP
  • Broodstock condition, egg morphology and lipid content and composition during the spawning season of captive striped trumpeter, Latris lineata
    Brandsen, MP; Battagñene, SC; Goldsmid, RM; Dunstan, GA; Nichols, PD
  • The environmental regulation of maturation in farmed finfish with special reference to the role of photoperiod and melatonin
    Bromage, NR; Porter, MJR; Randall, CF
  • The influence of water temperature on spawning patterns and egg quality in the Atlantic halibut (Hippoglossus hippoglossus L.)
    Brown, NP; Shields, RJ; Bromage, NR

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