Английская Википедия:Aetobatus ocellatus
Шаблон:Short description Шаблон:Italic title Шаблон:Taxobox
The ocellated eagle ray or the whitespotted eagle ray, Aetobatus ocellatus, is a species of cartilaginous fish in the eagle ray family Myliobatidae. It is found in the tropical Indo-West Pacific region.[1][2] In the past it was included in the spotted eagle ray (A. narinari), a species restricted to the Atlantic after the split.[3][4][5]
Description and behavior
Compared to the spotted eagle ray, A. ocellatus has a longer tail (mean total length 281 vs. 263% DW) and a longer stinging spine (mean length 9.7 vs. 8.9% DW). The background coloration of the dorsal surface in A. ocellatus is dark greenish/greying to almost blackish whereas A. narinari is much paler, medium yellowish to brownish.[3] Their foraging range is based on anthropogenic noises with populations structured according to ontogenetic stage.[6]
Reproduction
The ocellated eagle ray exhibits ovoviviparity with embryos feeding on yolk initially, then receiving additional nutrients from the mother through indirect absorption of enriched uterine fluid.[7] The gestation period lasts over 12 months and only produces a few pups.[8]
Diet
The ocellated eagle ray feeds primarily on gastropod, bivalve molluscs, crustaceans, worms, octopuses and fishes.[9]
References
External links
- ↑ Шаблон:Cite web
- ↑ Kuhl, H. in van Hasselt, J.C. (1823) Uittreksel uit een’ brief van Dr. J. C. van Hasselt, aan den Heer C. J. Temminck. Algemein Konst- en Letter-bode I Deel (no. 20): 315–317.
- ↑ 3,0 3,1 White, W.T., P.R. Last, G.J.P. Naylor, K. Jensen & J.N. Caira (2010). Clarification of Aetobatus ocellatus (Kuhl, 1823) as a valid species, and a comparison with Aetobatus narinari (Euphrasen, 1790) (Rajiformes: Myliobatidae). Pp. 141–164 in: Last, P.R., White, W.T. & Pogonoski, J.J., eds. (2010). Descriptions of new sharks and rays from Borneo. CSIRO Marine and Atmospheric Research Paper no. 32.
- ↑ Шаблон:Cite journal
- ↑ Шаблон:Cite journal
- ↑ Шаблон:Cite journal
- ↑ Шаблон:Cite journal
- ↑ Шаблон:Cite journal
- ↑ Randall, J.E. and Cea, A. (2011). Shore fishes of Easter Island. University of Hawai'i Press, 164 p.