Biological observations on the crocodile shark Pseudocarcharias kamoharai

Biological observations on the crocodile shark Pseudocarcharias kamoharai

Sex ratios and gravid characteristics were analysed for the crocodile shark Pseudocarcharias kamoharai from the tropical eastern Pacific Ocean. Gravid females ranged from 80 to 102 cm fork length (LF). The mode litter size was four (two embryos per uterus), mean embryo length was linearly correlated...

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Veröffentlicht in:Journal of fish biology 2012-04, Vol.80 (5), p.1207-1212
Hauptverfasser: Dai, X. J., Zhu, J. F., Chen, X. J., Xu, L. X., Chen, Y.
Format: Artikel
Sprache:eng
Schlagworte:
Animals
Body Size
embryo length
Female
gravid characteristics
Lamniformes
litter size
Male
Marine
Pacific Ocean
Pseudocarcharias kamoharai
Reproduction
Seasons
Sex Ratio
Sharks - embryology
Sharks - physiology
Viviparity, Nonmammalian
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Beschreibung
Zusammenfassung:Sex ratios and gravid characteristics were analysed for the crocodile shark Pseudocarcharias kamoharai from the tropical eastern Pacific Ocean. Gravid females ranged from 80 to 102 cm fork length (LF). The mode litter size was four (two embryos per uterus), mean embryo length was linearly correlated with maternal length (r = 0·465, n = 32); there was no significant difference in LF between female and male embryos.
ISSN:0022-1112
1095-8649
DOI:10.1111/j.1095-8649.2011.03177.x