Heterochronies in skull development of Lake Tana large African barbs (Labeobarbus; Cyprinidae; Teleostei)

  1. S. V. Smirnov1,
  2. V. B. Borisov1,
  3. D. V. Kapitanova2,
  4. B. Abdissa3,
  5. F. N. Shkil1,2

Article first published online: 21 MAY 2012

DOI: 10.1111/j.1439-0426.2012.01993.x

Issue

Journal of Applied Ichthyology

Journal of Applied Ichthyology

Special Issue: Interdisciplinary Approaches in Fish Skeletal Biology Proceedings of the Second Conference Tavira, Algarve, Portugal April 26-28, 2011

Volume 28, Issue 3, pages 406–410, June 2012

Additional Information

How to Cite

Smirnov, S. V., Borisov, V. B., Kapitanova, D. V., Abdissa, B. and Shkil, F. N. (2012), Heterochronies in skull development of Lake Tana large African barbs (Labeobarbus; Cyprinidae; Teleostei). Journal of Applied Ichthyology, 28: 406–410. doi: 10.1111/j.1439-0426.2012.01993.x

Author Information

  1. 1

    Severtsov Institute of Ecology and Evolution RAS, Moscow, Russia

  2. 2

    Kol’tzov Institute of Developmental Biology RAS, Moscow, Russia

  3. 3

    Bahir-Dar Fishery and Other Aquatic Life Research Center, Bahir-Dar, Ethiopia

*Author’s address: Fedor N. Shkil, Kol’tzov Institute of Developmental Biology RAS, Vavilova str., 26, 119334, Moscow, Russia. E-mails: fedorshkil@gmail.com; fedorshkil@yandex.ru

Publication History

  1. Issue published online: 21 MAY 2012
  2. Article first published online: 21 MAY 2012
  3. Received: October 21, 2011 Accepted: January 09, 2012

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Summary

Large African barbs (genus Labeobarbus) of Lake Tana (Ethiopia) form a species flock, which includes 15 species differing in biology, ecology, and shape features, including skull proportions. Early craniogenesis was studied in three species of Lake Tana barbs: L. intermedius, a proposed ancestor of Tana species flock, L. brevicephalus, a small-sized and early-maturating barb, and L. megastoma, a large-sized, piscivorous species. The general sequence of cranial cartilage and bone appearance is the same for the barb species studied. However, they differ greatly in temporal pattern of craniogenesis. As compared to L. intermedius, bony skull development is accelerated relative to chondrocranial development in L. brevicephalus and retarded in L. megastoma. These differences in temporal pattern of craniogenesis are proposed to account for the different cranial proportions displayed by these barbs.

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