Ornate angelshark

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Ornate angelshark
Squatina tergocellata.jpg
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Squatiniformes
Family: Squatinidae
Genus: Squatina
Species:
S. tergocellata
Binomial name
Squatina tergocellata
McCulloch, 1914
Squatina tergocellata distmap.png
Range of ornate angelshark (in blue)

[2]The ornate angelshark (Squatina tergocellata) is an angelshark of the family Squatinidae endemic to southern Australia between latitudes 30°S and 35°S, at depths of 130–400 m (430–1,310 ft). It can reach lengths of up to 1.4 m (4.6 ft). Females tend to have a TL (total length) at 1150-1250 mm, while males range from a TL of 810-910 mm at sexual maturity. Reproduction is ovoviviparous, with two to nine pups per litter.[3]

It appears that S. tergocellatahas a minimum gestation period of 6-12 months and parturition may occur biennially. Female Ornate angelsharks have two ovaries, the right one contains less ovarian follicles than the left. During the Spring season, the ovarian follicle was usually at its smallest point, after ovulation. However, the largest follicle was seen during autumn, right before ovulation. The follicle size could range anywhere from 1-68 mm.

The most common stomach contents were squid (Notodarus gouldi) and fish (mainly Monacanthidae).

References[edit]

  1. ^ Kyne, P.M.; Walker, T.I. & Bennett, M.B. (2016). "Squatina tergocellata". The IUCN Red List of Threatened Species. IUCN. 2016: e.T41863A68645801. doi:10.2305/IUCN.UK.2016-1.RLTS.T41863A68645801.en. Retrieved 24 December 2017.
  2. ^ Bridge, Natalie F.; Mackay, Duncan; Newton, Gina (1998). "Biology of the ornate angel shark (Squatina tergocellata) from the Great Australian Bight". Marine and Freshwater Research. 49 (7): 679–686. doi:10.1071/mf97075. ISSN 1448-6059.
  3. ^ Froese, Rainer and Pauly, Daniel, eds. (2006). "Squatina tergocellata" in FishBase. July 2006 version.