Broad skate
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The broad skate (Amblyraja badia) is a poorly known species of skate in the family Rajidae. It occurs at depths of Script error: No such module "convert"., and has been observed via remotely operated underwater vehicle by the Monterey Bay Aquarium Research Institute as deep as Script error: No such module "convert"., making it one of the deepest-occurring skates known.[1] It is sporadically distributed in the Pacific Ocean, from the Gulf of Panama to British Columbia and the Bering Sea, to the Tohoku Slope off northern Honshu and the Okhotsk Slope off Hokkaido.[2] The species name, badia, comes from the Latin Script error: No such module "Lang". meaning "brown", referring to its color.[3]
Description
The pectoral fin disc of the broad skate is wider than it is long, with sharply rounded apices. The snout is short and blunt, with several enlarged thornlets at the tip. Its underside is smooth and its dorsal surface is densely covered with prickles. Two or three pairs of distinctive scapular thorns are on each shoulder, usually arranged in a triangle, and a row of 24-29 median thorns along the back, flanked by a row of smaller lateral thornlets on the tail. The tail is relatively short and tapering, with two similar-sized dorsal fins and no interdorsal thorn. The very small caudal fin is placed close behind the second dorsal fin. The coloration is chocolate-brown to gray-brown above with scattered darker spots, same below except for the pelvic fin lobes and tail, which are darker. Whitish areas are on the snout, upper abdomen, nostrils, mouth, gill slits, and anal opening.[3]
Broad skates feed on cephalopods, crustaceans, and small bony fishes such as rattails. They are presumably oviparous like other skate species. Males mature from Template:Cvt and grow to at least Template:Cvt, while females grow to at least Template:Cvt. The smallest known free-swimming specimens measured Template:Cvt. This species is of no commercial interest, but is occasionally taken as bycatch in deepwater trawls and traps.[3]
References
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External links
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