Effects of photoperiod on growth and feed utilization of juvenile Black Sea turbot (Psetta maeotica)

Turker A.

ISRAELI JOURNAL OF AQUACULTURE-BAMIDGEH, cilt.57, sa.3, ss.156-163, 2005 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 57 Sayı: 3
  • Basım Tarihi: 2005
  • Dergi Adı: ISRAELI JOURNAL OF AQUACULTURE-BAMIDGEH
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.156-163
  • Anahtar Kelimeler: feed utilization, growth, juveniles, photoperiod, Psetta maeotica, turbot, PARR-SMOLT TRANSFORMATION, SCOPHTHALMUS-MAXIMUS, ATLANTIC SALMON, OXYGEN-CONSUMPTION, DAY LENGTH, TEMPERATURE, LIGHT, SIZE
  • Ondokuz Mayıs Üniversitesi Adresli: Hayır

Özet

A study was conducted to determine the effect of different photoperiods on the growth and survival of juveniles of the Black Sea turbot (Psetta maeotica). Juvenile turbot (32.17 +/- 0.1 g) were reared under one of three experimental photoperiod regimes: natural, continuous light, or extended light (18 h light:6 h dark). The turbot were held in sea water (18 ppt) at 15-24 degrees C from May 27 to July 29, 2004. The maximum growth rate, feed efficiency, and specific growth rate were recorded in the fish exposed to the extended light period (p < 0.05). Continuous light may have acted as an irritant, inducing stress, suppressing growth, and reducing feed intake.