Organogenesis and histological development of the wedge sole Dicologoglossa cuneata M. larva with special reference to the digestive system

Organogenesis and histological development of the wedge sole Dicologoglossa cuneata M. larva with... In this work, several features during the wedge sole larval development have been described. The newly hatched larva presented an acidophilic yolk with some oil drops. The digestive tract began to differentiate at 1 DAH, with a loop being discernible. The pancreas and liver were completely formed at 2 DAH, the former showing its typical basophilic acinar structure and acidophilic zymogen granules. The first supranuclear vesicles in enterocytes were seen at 3 DAH. At 4 DAH, yolk reserves were completely exhausted, the number of oesophagus and intestine mucous cells increased, and the heart was differentiated into four chambers: the venous sinus, atrium, ventricle, and arterious bulb. The development was fast and almost all organs were differentiated at 2 DAH. It is important to emphasize that gastric glands were not detected, a factor that should be considered when deciding diet formulation and feeding strategies for the rearing of this species. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Reviews in Fish Biology and Fisheries Springer Journals

Organogenesis and histological development of the wedge sole Dicologoglossa cuneata M. larva with special reference to the digestive system

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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/s11160-010-9161-y
Publisher site
See Article on Publisher Site

Abstract

In this work, several features during the wedge sole larval development have been described. The newly hatched larva presented an acidophilic yolk with some oil drops. The digestive tract began to differentiate at 1 DAH, with a loop being discernible. The pancreas and liver were completely formed at 2 DAH, the former showing its typical basophilic acinar structure and acidophilic zymogen granules. The first supranuclear vesicles in enterocytes were seen at 3 DAH. At 4 DAH, yolk reserves were completely exhausted, the number of oesophagus and intestine mucous cells increased, and the heart was differentiated into four chambers: the venous sinus, atrium, ventricle, and arterious bulb. The development was fast and almost all organs were differentiated at 2 DAH. It is important to emphasize that gastric glands were not detected, a factor that should be considered when deciding diet formulation and feeding strategies for the rearing of this species.

Journal

Reviews in Fish Biology and FisheriesSpringer Journals

Published: Feb 11, 2010

References

  • Ontogeny of the digestive tract during larval development of yellowtail flounder: a light microscopic and mucous histochemical study
    Baglole, CJ; Murray, HM; Goff, GP; Wright, GM

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