Search results
Results from the WOW.Com Content Network
The annual take of angel shark in 1977 was an estimated 147 kg. [11] By 1985, the annual take of angel shark on the central California coast had increased to more than 454 tonnes or an estimated 90,000 sharks. [11] The population declined dramatically and is now regulated. Angel sharks live very close to shore, resulting in high bycatch rates.
As the local prey eventually learn to avoid the stationary predator, the shark periodically shifts at night to a new site several kilometers away. One study off Santa Catalina Island found that over 13–25 hours, nine sharks together used only 1.5 km 2 (0.6 mi 2). A later, longer-term study found that the sharks' sporadic position changes ...
Other common names used for this species include angel, angel fiddle fish, angel puffy fish, angel ray, angelfish, escat jueu, fiddle fish, monk, and monkfish. [4] Stelbrink and colleagues (2010) conducted a phylogenetic study based on mitochondrial DNA, and found that the sister species of the angelshark is the sawback angelshark (S. aculeata).
The clouded angelshark (Squatina nebulosa) is an angelshark of the family Squatinidae found in the northwest Pacific from the southeastern Sea of Japan to Taiwan between latitudes 47° N and 22° N. Its length is up to 1.63 m. Reproduction is ovoviviparous.
Squatina mapama (also known as the small-crested angelshark) is a species of angelshark found in the Caribbean. [ 1 ] [ 2 ] [ 3 ] It was described by Douglas J. Long, David A. Ebert, Jose Tavera, Arturo Acero Pizarro , and David Ross Robertson in December 2021.
Some older sources reported it may occur in the Philippines, but recent research suggests the only angel shark species in that area is S. caillieti. [3] [8] The Japanese angelshark inhabits the continental shelf, usually in the shallows, but also to as deep as 300 m (980 ft). It is a bottom-dweller found over sandy bottoms, often close to rocky ...
Colour: Are a yellow-brown to a chocolate-brown, obtains dense patterns of small white dark edged symmetrical spots, also with many large brownish blotches. Has white nuchal spot (no ocelli).
Colour: Are a purplish-brown color with many scattered dark brown spots (with no white), that are mostly in circular groups around a central spot. No ocelli. Obtains paler dorsal fins.