Aves |
Charadriiformes |
Alcidae
环境：氛围 / 气候带 / 深度上下限 / 分布范围
生态学
Others; 深度上下限 0 - 36 m (参考文献 61831). Polar; 62°N - 34°N, 171°E - 120°W (参考文献 125423)
Pacific Ocean: California to the Aleutian Islands. Boreal to subtropical.
首次成熟时的长度 / 大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm Max length : 25.0 cm TL 雄鱼/尚未辨别雌雄; (参考文献 8812); 最大体重: 202.50 g (参考文献 356)
Culmen: 1.6 cm; tarsus: 1.59 cm; wing: 12.7 cm.
An endangered species. Nesting habitat protected under ESA in the U.S. (Ref. 87784). Total Length: 24 to 25 cm (Ref. 8812). Coastal; can be found offshore up to 300 km; thermal fronts, water <30 m deep; glacial-affected. Pursuit divers (Ref. 356). Crepuscular to nocturnal. Mate prospecting thru display and calls; nocturnal vocal displays minimal. Direct or indirect intra- and interspecific competition for nest sites. Nests in trees (Ref. 87784). Breeding pairs maintain isolation from colony until the eggs are laid (Ref. 95051). Feeds on hatchery-released pink salmon and chum salmon in Prince William Sound, Alaska. Population decline associated with mortality in fishing nets (Ref. 87784).
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Reproductive productivity of the species in Salish Sea declined by at most 50% over the past 150 years (Ref. 95036).
主要参考文献
参考文献 | 合作者 | 合作者
Hirsch, K.V., D.A. Woodby and L.B. Astheimer 1981 Growth of a nestling Marbled Murrelet. Condor 83:264-265. (参考文献 8541)
世界自然保护联盟红皮书
(参考文献 130435: Version 2025-2 (Global))
濒危 (EN) (A2bce+3bce+4bce); Date assessed: 27 July 2020
Not Evaluated
Not Evaluated
对人类的威胁
人类利用
FAO - Publication: search | FishSource |
工具
更多信息
人口动态成长最大年龄/尺寸长度-重量关系长短关系体长-频率质量转换丰度
网络资源
基于模型的估算
回复力
(Ref. 69278): |
高度, 族群倍增时间少于 15个月 (K=60.76) |
渔业脆弱性
(参考文献 71543) |
Low vulnerability (15 of 100). |
价格分类
(参考文献 80766): |
Unknown. |
