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Biological notes on the reef stingray, Urobatis concentricus , an endemic species of Mexico
Author(s) -
Ehemann N. R.,
PérezPalafox X. A.,
PabónAldana K.,
MejíaFalla P. A.,
Navia A. F.,
CruzEscalona V. H.
Publication year - 2017
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/jfb.13398
Subject(s) - stingray , biology , fecundity , reef , yolk sac , reproduction , yolk , zoology , fishery , ecology , embryo , demography , population , sociology
This study found that the reef stingray Urobatis concentricus presents a matrotrophic aplacental viviparous reproduction with yolk sac and trophonemata formation. Growth of ovarian follicles occurs asynchronously and continuously with fecundity of three embryos per female. A maximum size of 58·4 cm total length and 37·6 cm disc width was recorded, corresponding to a mature female of 3 or 4 years of age.