- 환도상어 Sharks, Thresher
. 학명; Alopias species
. 서식지; 따뜻한 수온의 수심 500미터이하인 탁 트인 바다
. 통명; 환도상어
. 특징; 몸길이만큼 긴 탈곡기와 같은 형상의 꼬리지느러미
. 먹이와 요리법; 회로, 절이거나 굽거나 말려서, 혹은 찌개 등으로 섭취
1 학명과 서식지
- 학명; Alopias species
- 서식지
. 온도와 깊이; 따뜻한 수온의 수심 500미터이하인 탁 트인 바다
. 지역; 전세계의 원양에서 장거리 이동
All threshers are fundamentally pelagic but will occasionally move in close to shore. There are four species, including the pelagic thresher (A. pelagicus) and the Pacific bigeye thresher (A. profundis), which occur in the north-western Pacific, and the Atlantic bigeye thresher shark (A. superciliosus), which occurs in the Atlantic. The longtail thresher (A. vulpinus) is cosmopolitan in temperate and tropical waters.
2 통명
- 영어; fox shark, longtail thresher, pelagic thresher, sea fox, swiveltail, thintail thresher, thrasher shark.
- 한글; 환도상어, 악상어목 환도상어과
3 개요
- 길이; 610센티이내
- 무게; 평균1100파운드
Known by a variety of names, the thresher shark is characterized by its well-muscled tail, the upper lobe of which is usually as long as the rest of the body. These sharks use their tails to herd baitfish into a mass by slapping or thrashing the water, then stunning or injuring fish before swallowing them.
4 특징
- 머리가 짧고 원뿔모양의 코와 작은 입
- 몸길이만큼 긴 탈곡기와 같은 형상의 꼬리지느러미
- 긴 꼬리는 먹이를 기절시키는 무기로 활용
- 갈색이나 회색의 등과 밝은 색의 배
- 물밖으로 완전히 뛰어오르는 습성
Grayish to dark charcoal in color, the thresher shark turns abruptly white on the belly and may be mottled on the lower half of the body. The thresher is further identified by the absence of a keel on the caudal peduncle; by its small, pointed, and broad-based teeth; and by its comparatively smooth skin.
5 먹이와 요리법
- 먹이; 참치, 고등어를 주로 섭취하고 오징어와 갑각류, 바닷새도 추가
- 난태생으로 8세가 되면 임신하여 1.5미터인 3마리를 새끼를 출산
- 치어는 자궁에서 미수정란을 먹으면서 성장
- 가죽, 간유, 고기, 지느러미를 위한 어획과 낚시로 남획되어 멸종위기
- 회로, 절이거나 굽거나 말려서, 혹은 찌개 등으로 섭취
Longtail and pelagic threshers have moderate-size eyes, and the first dorsal fin is set almost directly in the middle of their backs and far ahead of the beginning of the pelvic fins. The Atlantic and the Pacific bigeye threshers have much larger eyes, and the rear margins of the dorsal fins are located at least as far back as the origin of the pelvic fins. Threshers are excellent food fish, comparable to mako and swordfish, and they are outstanding fighters (the long-tail has been known to leap out of the water). Thresher sharks were more popular than makos off California until recently and are a relatively rare catch along the U.S. Atlantic coast, although specimens in the 300- to 600-pound class are the most common size encountered from New Jersey to Massachusetts. The largest threshers have come from New Zealand, where they’ve been boated in excess of 800 pounds. The all-tackle world record for A. vulpinus is a 767-pound, 3-ounce fish taken off New Zealand in 1983.