Histological and Morphological Aspects of Reproduction in Male Blackspotted Smooth-Hound Mustelus punctulatus in the Adriatic Sea (Eastern Mediterranean Sea)
Joint Authors
Gračan, Romana
Lacković, Gordana
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-08-09
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Earth Science , Water and Environment
Abstract EN
We present first data on reproductive biology of male blackspotted smooth-hound Mustelus punctulatus in the Adriatic Sea and first histological examination of gonads at different maturation stages and seasonal cycles for this species.
We collected samples from 117 male specimens of M.
punctulatus ranging in length from 44.6 to 126.5 cm, caught by commercial bottom trawls in the North-Central Adriatic Sea.
Microscopic observation revealed a diametric development of testes, in which round-shaped spermatocysts have zonal arrangement, showing seven different stages of development.
Males began to mature when they were between 61 and 88 cm body length, which was indicated by the presence of functional claspers or appearance of the spermatogenic cysts.
While the smallest mature shark was only 80 cm long, all animals longer than 89 cm were sexually mature.
The seasonal analysis of the testes indicated that mature spermatozoa dominated in testes during the first half of the year with a peak in May and June, after which followed less active period during July and August.
American Psychological Association (APA)
Gračan, Romana& Lacković, Gordana. 2016. Histological and Morphological Aspects of Reproduction in Male Blackspotted Smooth-Hound Mustelus punctulatus in the Adriatic Sea (Eastern Mediterranean Sea). Journal of Marine Sciences،Vol. 2016, no. 2016, pp.1-6.
https://search.emarefa.net/detail/BIM-1108971
Modern Language Association (MLA)
Gračan, Romana& Lacković, Gordana. Histological and Morphological Aspects of Reproduction in Male Blackspotted Smooth-Hound Mustelus punctulatus in the Adriatic Sea (Eastern Mediterranean Sea). Journal of Marine Sciences No. 2016 (2016), pp.1-6.
https://search.emarefa.net/detail/BIM-1108971
American Medical Association (AMA)
Gračan, Romana& Lacković, Gordana. Histological and Morphological Aspects of Reproduction in Male Blackspotted Smooth-Hound Mustelus punctulatus in the Adriatic Sea (Eastern Mediterranean Sea). Journal of Marine Sciences. 2016. Vol. 2016, no. 2016, pp.1-6.
https://search.emarefa.net/detail/BIM-1108971
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1108971