Larval Development of The Freshwater Angelfish <i>Pterophyllum scalare</i> (Teleostei: Cichlidae)

ÇELİK İ., ÇELİK P., GÜRKAN M., ŞAHİN T.

TURKISH JOURNAL OF FISHERIES AND AQUATIC SCIENCES, no.4, pp.863-874, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Publication Date: 2014
  • Doi Number: 10.4194/1303-2712-v14_4_03
  • Journal Name: TURKISH JOURNAL OF FISHERIES AND AQUATIC SCIENCES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.863-874
  • Keywords: Ornamental fish, aquarium, larval development, allometric growth
  • Çanakkale Onsekiz Mart University Affiliated: Yes

Abstract

In this study, the larval development of freshwater angelfish, Pterophyllum scalare, was described under controlled aquarium conditions. Major histomorphological changes and the allometric growth patterns during the larval development have been described. The larvae were obtained from three pairs of freshwater angelfish, which were maintained in glass tanks. The larvae were sampled for measurement and photography. They were observed under a stereomicroscope, photographed using a photomicrographic system. The larval development of angelfish were described from 1 days after hatching (DAH) to 24 DAH. Embryonic developmental stage was completed at day 3 after spawning at 24 +/- 1 degrees C. The newly hatched larvae had 4.24 +/- 0.28 mm total length (TL). The mouth opened at 3 DAH. The larvae started to swim actively within the next 3-4 days. Notochord flexion began at 3-4 DAH. The yolk sac has been totally absorbed at 6 DAH. The metamorphosis was completed and the larvae transformed into juveniles at 23-24 DAH.