Aetobatus ocellatus

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Aetobatus ocellatus
Aetobatus ocellatus in the Maldives
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Superorder: Batoidea
Order: Myliobatiformes
Family:
Aetobatidae
Genus: Aetobatus
Species:
A. ocellatus
Binomial name
Aetobatus ocellatus
(Kuhl, 1823)

The ocellated eagle ray or the whitespotted eagle ray, Aetobatus ocellatus, is a species of

Indo-West Pacific region.[2][3] In the past it was included in the spotted eagle ray (A. narinari), a species restricted to the Atlantic after the split.[4][5][6]

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.[4] Their foraging range is based on anthropogenic noises with populations structured according to ontogenetic stage.[7]

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.[8] The gestation period lasts over 12 months and only produces a few pups.[9]

Diet

The ocellated eagle ray feeds primarily on gastropod, bivalve molluscs, crustaceans, worms, octopuses and fishes.[10]

References

  1. doi:10.2305/IUCN.UK.2016-1.RLTS.T42566169A42566212.en
    . Retrieved 19 February 2022.
  2. ^ "Aetobatus ocellatus (Kuhl, 1823)". FishBase. Retrieved 2015-05-17.
  3. ^ 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.
  4. ^ a b 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.
  5. PMID 19304741
    .
  6. PMID 25283197
    .
  7. ^ Lecchini, David (2018). "Distribution patterns of ocellated eagle rays, Aetobatus ocellatus, along two sites in Moorea Island, French Polynesia". Cybium. 42 (4): 313–320.
  8. PMC 1688595
    .
  9. doi:10.1071/MF09261
    .
  10. ^ Randall, J.E. and Cea, A. (2011). Shore fishes of Easter Island. University of Hawai'i Press, 164 p.

External links

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