First Records of Anal Fin Deformity in Fishes Collected from Jubail City, Saudi Arabia, Arabian Gulf

  • L. A. Jawad
  • M. Ibrahim


There is not much of information available in the literature about the deformity in the anal fin of fishes. Ten specimens representing six species belonging to three families were demonstrated to have variable severity of anal fin deformities. The deformities described in this study were observed for the first time in fishes from the Saudi Arabia and the Arabian Gulf area in general. Possible causative agents, such as pollution, are discussed.


Abnormalities Deformities Teleosts fishes Carangidae Sparidae 



We would like to thank the Ministry of Agriculture, Fish Welfare Branch, Jubail Province, Saudi Arabia for giving us the opportunity to examine and study the deformed fish specimens. Our thanks are also due to Sergey Bogorodsky of Station of Naturalists, Omsk, Russia and Ronald Fricke of Staatliches Museum für Naturkunde, Rosenstein, Germany, William Smith-Vaniz, Florida Museum of Natural History, for identification of the species.

Compliance with Ethical Standards

Conflict of Interest

The authors Laith A. Jawad and Mustafa Ibrahim declare that they have no conflict of interest between them.

Ethical Approval

This article does not contain studies with dead fish and in this case ethical approval is not applicable.


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.AucklandNew Zealand
  2. 2.Ministry of AgricultureFish Welfare BranchEl-Jubail ProvinceSaudi Arabia

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