红鸡石斑 Yellow Eye

红 鸡石斑Yelloweye rockfish是加拿大特有的深海石斑鱼,红鸡石斑鱼最长可达0.9米,一般生活在51-393米的海底,但最深被发现在475米的海底。红鸡石斑鱼是 最长寿的石斑鱼之一,一般可活114到120年,最长寿的记录为147年。它们一般会在深的海底、石头海床的区域生活,事实上它们通常会一辈子生活在同一 个石头海床区域。

The yelloweye rockfish (Sebastes ruberrimus) is a rockfish of the genus Sebastes, and one of the biggest members of the genus. Its name derives from its coloration. It is also locally known as “red snapper“,[1][2] not to be confused with the warm-water species Lutjanus campechanus that formally carries the name red snapper. The yelloweye is one of the world’s longest-lived fish species, and is cited to live to a maximum of 114 to 120 years of age. As they grow older, they change in color, from reddish in youth, to bright orange in adulthood, to pale yellow in old age. Yelloweye live in rocky areas and feed on small fish and other rockfish. They reside in the East Pacific and range from Baja California to Prince William Sound in Alaska.

Yelloweye rockfish are prized for their meat, and were declared overfished in 2002, at which time a survey determined that their population, which had been in decline since the 1980s, was just 7-13% of numbers before commercial fishing of the species began. Because of the slow reproductive age of the species, recovery of the species is difficult, and liable to last decades, even with the harshest restrictions; Washington state, for example, maintains a quota of under 1000 individuals per year. It is currently under consideration for listing under Threatened or Endangered status.

Characteristics

A diagram of a Yellowfish, calling attention in particular to its head spines.

The yelloweye rockfish is colored red on its back, orange to yellow on the sides, and black on the fin tips. Its young are typically under 28 cm (11 in) in length, and differ from the adults in that they have two reddish-white stripes along their belly,[3] and are often red. Because of the distinct difference in coloration between juveniles and adults, they were considered separate species for a long time.[4] Its head spines are exceptionally strong. They grow to a maximum length of 36 in (0.9 m) and are typically found in the 28-to-215 ftm (51-to-393 m) range, although specimen have been reported up to a maximum depth of 260 ftm (475 m).

 

Yelloweye rockfish live to be extremely old, even for their unusually long-lived genus. They average 114[1] to 120[2] years of age; the oldest ones reach as much as 147 years. They fade from bright orange to a paler yellow as they grow in age. They are exceptionally slow developing as well, not reaching maturity until they are around 20 years of age.[1]

Diet

Larval yelloweye feed on diatoms, dinoflagellates, crustaceans, tintinnids, and cladocerans, and juveniles consume copepods and euphausiids of all life stages. Adults eat demersal invertebrates and small fishes, including other species of rockfish.[4]

Habitat

The yelloweye rockfish has been recorded all along the East Pacific, from Umnak Island and Prince William Sound, Alaska, to Ensenada, Baja California.[5] They are typically found in deeper, rocky-bottomed areas; in fact, they often spend their entire lifetime on a single rock pile.

 

Category: 鱼类介绍

联系我们

140-4400 Hazelbridge Way, Richmond, BC, V6X3R8 Canada.
mctecfishing@gmail.com
604-233-0448 | 1-888-666-0448

© Copyright 2016 MCTEC FISHING CHARTER. | Consumer protection BC License: BC Reg#:31356