کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2423592 1552922 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of daily thermo- and photo-cycles of different light spectrum on the development of Senegal sole (Solea senegalensis) larvae
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم آبزیان
پیش نمایش صفحه اول مقاله
Effect of daily thermo- and photo-cycles of different light spectrum on the development of Senegal sole (Solea senegalensis) larvae
چکیده انگلیسی

This paper investigates the impact of different thermo- and photo-cycles of distinct wavelengths on Solea senegalensis larvae from day 1 to 30 post-hatching. In experiment 1, larvae were exposed to 12 h light:12 h dark (12 L:12D) cycle and (A) constant temperature (20.7 °C), (B) thermocycle of 12 h thermophase: 12 h cryophase, 22.1 °C day: 19.0 °C night (referred to as TC) or (C) 12 h cryophase: 12 h thermophase, 19.2 °C day: 22.0 °C night (referred to as CT). In experiment 2, larvae were kept under constant temperature (20.8 °C) and exposed to (A) continuous light (LL), (B) continuous darkness (DD), and LD 12 L:12D cycles of (C) white light (LDW), (D) blue light (LDB) or (E) red light (LDR). The sole larvae achieved the best performance, and showed fastest development and lowest degree of deformity under natural thermocycle conditions (TC) with a deformity percentage of 31.1% and LDB cycles with 27.7% of malformation, conditions which were nearest their natural aquatic environment. Larvae reared under TC started eye migration at 9 day post-hatching (DPH), while larvae exposed to CT started eye migration at 11 DPH. In larvae under the LDB treatment the migration of the eye started earlier than in the other treatments (9 DPH), while larvae reared under LL and DD photoperiods died before metamorphosis. These findings highlight the importance of light and temperature cycles during the early development of S.senegalensis larvae, which should be taken into consideration in experimental or rearing protocols.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aquaculture - Volume 306, Issues 1–4, 15 August 2010, Pages 137–145
نویسندگان
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