Malacostraca |
Decapoda |
Astacidae
环境：氛围 / 气候带 / 深度上下限 / 分布范围
生态学
Benthic; 淡水. Temperate
Europe inland waters: northern and eastern Europe, including portions of France eastward to countries of the Russian Commonwealth and southern Scandinavia southward. Absent from the Italian and Balkan Peninsulas. Introduced to various parts of Europe, Western Asia and North Africa.
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 127977)
Typically brown or green on the back, underside of first pair of claws dark red or reddish brown.
First crayfish species to be described in 1758; important species in European fisheries for centuries. Occurs in a wide variety of habitats, from streams and rivers to lakes, usually in well-oxygenated waters with sufficient foliage cover. An opportunistic feeder on living and dead plant and animal matter. Mating usually in autumn, eggs are carried over winter and hatching occurs in spring and summer. Most native European populations were decimated by the crayfish plague, first detected in Italy in the 1860s. Introduced North American spinycheek crayfish, Orconectes limosus (to replace stocks of decimated population of noble crayfish in the Oder River, Germany in 1890) and other introduced crayfish species competing with and displacing native noble crayfish populations coupled with habitat destruction and pollution contributed to the decline in noble crayfish populations in Europe. Protected under the European Union Habitats Directive (Ref. 80793). Occurs in a wide variety of habitats, from streams and rivers to lakes, usually in well-oxygenated waters with sufficient foliage cover (daytime retreat under rocky or woody debris and dense foliage); also burrows on stream banks. An opportunistic feeder on living and dead plant and animal matter. Living aquatic insects, crustaceans, worms, sponges, bryozoans and mollusks are preferred with the crayfish crushing prey with their lower jaws. Birds, mammals and fish prey on the noble crayfish (Ref. 80788).
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
主要参考文献
参考文献 | 合作者 | 合作者
Hildyard, A. and M. Cavendish 2001 Endangered Wildlife and Plants of the World. Marshall Cavendish Corporation, NY, USA. 1872 p. (参考文献 80788)
世界自然保护联盟红皮书
(参考文献 130435: Version 2025-2 (Global))
Not Evaluated
Not Evaluated
对人类的威胁
Harmless
人类利用
渔业: 商业性; 养殖: 实验的
FAO - Aquaculture Systems: production search渔业: landings search; Publication: search | FishSource | 周边海洋
工具
网络资源
基于模型的估算
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. |
