- 홍연어 Salmon, Sockeye
. 학명; Oncorhynchus nerka
. 서식지; 냉대의 연해와 강
. 통명; 홍연어
. 특징; 암수모두 혼인색으로 진홍색의 몸과 올리브색의 머리
. 먹이와 요리법; 회로, 말리거나 절여서, 구워서 섭취
1 학명과 서식지
- 학명; Oncorhynchus nerka
- 서식지
. 온도와 깊이; 냉대의 연해와 강
. 지역; 북동태평양, 알래스카에서 북캘리포니아
The sockeye salmon is native to the northern Pacific Ocean and its tributaries; in North America it occurs from the Sacramento River, California, to Point Hope, Alaska.
Habitat. Sockeye salmon are anadromous, living in the sea and entering freshwater to spawn. They mainly enter rivers and streams that have lakes at their source. Young fish may inhabit lakes for as many as 4 years before returning to the ocean.
2 통명
- 영어; sockeye, red salmon, blueback salmon, big redfish;
French: saumon nerka; Japanese: beni-zake, himemasu. The landlocked form is called kokanee salmon, Kennerly’s salmon, kokanee, landlocked sockeye, kickininee, little redfish, silver trout; French: kokani.
- 한글; 홍연어, 연어목 연어과
3 개요
- 길이; 84센티이내,
- 무게; 15파운드이내, 평균 6파운드
Adult sockeye usually weigh between 4 and 8 pounds. The all-tackle world record is an Alaskan fish that weighed 15 pounds, 3 ounces.
4 특징
- 태평양 연어중 가장 가늘고 유선형
- 치어는 특히 길쭉하고 압축
- 등은 그린블루, 옆은 무지개빛 은색, 배는 흰색
- 산란기 수컷은 등에 혹이 생기고 갈고리 모향의 턱
- 암수모두 혼인색으로 진홍색의 몸과 올리브색의 머리
A member of the Salmonidae family, sockeye leave the ocean to spawn in freshwater, as do other Pacific salmon, but they enter only those rivers having lakes at their headwaters. The erection of dams and the alteration of habitat, however, as well as commercial overfishing and other factors, have caused an overall decline in sockeye stocks and the loss of some specific runs.
Identification. The sockeye is the slimmest and most streamlined of Pacific salmon, particularly immature and pre-spawning fish, which are elongate and somewhat laterally compressed. The sockeye is metallic green-blue on the back and the top of the head, iridescent silver on the sides, and white or silvery on the belly. Some fine black speckling may occur on the back, but large spots are absent. Breeding males develop humped backs and elongated, hooked jaws filled with sharp, enlarged teeth. Both sexes turn brilliant to dark red on their backs and sides, pale to olive green on their heads and upper jaws, and white on their lower jaws. The totally red body distinguishes the sockeye from the otherwise similar chum salmon, and the lack of large, distinct spots distinguishes it from the remaining three Pacific salmon of North America.
5 먹이와 요리법
- 먹이; 주로 동물성 플랑크톤을 섭취하고 유충과 작은 물고기와 오징어 추가
- 바다에서 3년간 성장후 여름이나 가을에 모천회귀하여 산란후 죽는 어류
- 회로, 말리거나 절여서, 구워서 섭취가능
Sockeye salmon return to their natal stream to spawn after spending 1 to 4 years in the ocean. They enter freshwater systems from the ocean during the summer months or the fall, some having traveled thousands of miles. Most populations show little variation in their arrival time on the spawning grounds from year to year.
Food and feeding habits. In the ocean, sockeye salmon feed on plankton, plus on crustacean larvae, on larval and small adult fish, and occasionally on squid.