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- Title
Larval and juvenile development of Pike Gudgeon, Pseudogobio esocinus (Cyprinidae: Gobioninae).
- Authors
Nakajima, Jun; Onikura, Norio
- Abstract
We describe the larval and juvenile development of Pike Gudgeon, Pseudogobio esocinus, using laboratory-reared specimens. Newly hatched larvae with a 4.2-4.6 mm body length (BL) and 22-23 + 16 = 38-39 myomeres had melanophores on their head and body. The yolk sac was completely absorbed at 5.0 mm BL. Notochord flexion was initiated at 5.0-6.0 mm BL and completed at 7.3 mm BL. The aggregate number of all fin rays was completed at 11 mm BL. Several rod-like cupulae were observed on the head and lateral side of the body at 4.2-11.0 mm BL and were completely distinguished at 11.0-14.0 mm BL. Squamation was initiated on the caudal body at approximately 11.0 mm BL and completed at 11.0-14.0 mm BL. The newly hatched larvae had well-developed eyes and large pectoral fins.
- Subjects
CYPRINIFORMES; CYPRINIDAE; FISH larvae; FISH research; PECTORAL fins
- Publication
Ichthyological Research, 2015, Vol 62, Issue 3, p268
- ISSN
1341-8998
- Publication type
Article
- DOI
10.1007/s10228-014-0436-5