An anadromous species which inhabits ocean and coastal streams (Ref. 5723, 86798). Epipelagic (Ref. 58426). Pelagic at the sea. In freshwater, lives in Montane and Piedmont rivers with moderate to fast current and gravel bottom. Spawns in riffles or at head of riffles in shallow water with current up to 1.5 m/s, and clean coarse gravel (Ref. 59043). Spends 18 months at sea after which spawning migration to the natal river or stream occurs; but because the species is less certain of its homing and there is a certain degree of wandering, streams as much as 640 km from natal streams may be used (Ref. 1998, 27547). Upon emerging from the gravel, fry immediately move downstream and remain inshore for a few months before going out to sea. Fry may feed on nymphal and larval insects while in fresh water, but may not feed at all. In the sea, young feed on copepods and larvacean tunicates, its diet shifting to amphipods, euphausiids and fishes as the fish grows (Ref. 27547). Other food include ostracods, decapod larvae, cirripeds, tunicates, dipterous insects (Ref. 1998, 27547). Fry may be preyed upon by birds and mammals while adults by marine mammals and large fish (Ref. 1998). Mostly sold canned (Ref. 1998) but also utilized fresh, smoked, and frozen; also valued for caviar, especially in Japan; eaten steamed, fried, broiled, boiled, microwaved, and baked (Ref. 9988). The smallest of the true salmon (Ref. 12218).
表層帶.(參考文獻 58426) 度過在海上的 18個月此後產卵迴游到出生的河,否則水流出現; 但是因為此魚種它的歸巢是比較不某些而且有一個流浪的特定程度, 溪流高達 640 公里從出生的溪流可能是使用過的.(參考文獻 1998,27547) 一從礫石出現,魚苗緊鄰移動下游而且在去向外到海洋之前保持近海數個月.(參考文獻 27547) 魚苗可能吃 nymph 的與昆蟲幼蟲在淡水中的時候, 但是可能根本不吃。 在海洋中, 幼魚捕食橈腳類的動物與 larvacean 被囊類, 它的食性轉移到片腳類動物, 磷蝦與魚當魚生長.(參考文獻 27547) 其他的食物包括介形蟲,十足目幼生,蔓腳類動物,被囊類,雙翅目昆蟲昆蟲。 (參考文獻 1998,27547) 魚苗可能是被鳥與哺乳動物捕食雖然成魚被海洋哺乳動物與大的魚.(參考文獻 1998) 大部份裝成罐頭銷售 (參考文獻 1998).,也生鮮利用,煙燻., 與冷凍; 也為魚子醬評價., 尤其在日本; 清蒸,油炸,火烤, 煮沸, 微波., 而且燒烤..(參考文獻 9988) 最小的真實鮭魚.(參考文獻 12218) 這種的阿拉斯加州鮭魚漁場已經被檢定藉由海洋的總管職務會議 (http://www.msc.org/) 當管理良好且族群能維持。
Preferred temperature (Ref.
115969): 0.5 - 9.3, mean 3.3 (based on 572 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00639 - 0.02064), b=3.08 (2.93 - 3.23), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.5 ±0.4 se; based on diet studies.
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (tm=2; tmax=3; Fec=800).
Prior r = 0.55, 95% CL = 0.37 - 0.83, Based on 4 full stock assessments.
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (50 of 100).
Climate Vulnerability (Ref.
125649): Moderate to high vulnerability (46 of 100).