Salmo ezenami : fisheries

Salmo ezenami Berg, 1948

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分类 / 名称 俗名 | 同种异名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Salmoniformes (Salmons) > Salmonidae (Salmonids) > Salmoninae
Etymology: Salmo: Latin, salmo, Plinius = salmon (Ref. 45335).
Eponymy: This is a toponym; referring to Lake Ezenam, Daghestan, Caucasus, Russia which is the type locality. (Ref. 128868), visit book page.
More on author: Berg.

环境:氛围 / 气候带 / 深度上下限 / 分布范围 生态学

; 淡水 底中水层性. 溫帶

分布 领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri

Europe: Lake Kezenoi-am (formerly Eizenam) (Daghestan) in northern Caucasus, Russia. Introduced in 1963 in Lake Mochokh (Daghestan), probably established.
亞洲: 湖 Ezenam , Daghestan ,高加索,俄國。

大小 / 重量 / 年龄

成熟度: Lm ?  range ? - ? cm
Max length : 113 cm SL 雄鱼/尚未辨别雌雄; (Ref. 59043); 最大体重: 17.0 kg (Ref. 59043)

简单描述 检索表 | 型态特徵 | 形态测量图

Distinguished from congeners in Caspian Sea basin by having the following unique characters: 16-21 short and broad gill rakers, without denticles, in large individuals sometimes slightly expanded at tip; maxilla not reaching posterior margin of eye; and bright coloration comprising of 10-30 relatively large (6-7 mm in diameter) carmine red spots above lateral line, small black spots on back, red spots on dorsal, upper caudal lobe, and adipose fins (Ref. 59043).
Body shape (shape guide): fusiform / normal.

生物学特性     字汇 (例如 epibenthic)

Inhabits mountain lake (Lake Kezenoi-am) with altitude of 1870 m above sea level, with a maximum depth of 74 m, temperature about 5° C below 20 m and 5-18° C in upper layers in summer, covered by ice in winter, high oxygen concentrations down to bottom throughout the year and low plankton density. This was the only fish inhabiting the lake prior to the introduction of Gobio holurus and Squalius cephalus. Young juveniles feed predominantly on gammarids, chironomid larvae; larger juveniles and adults prey on molluscs, benthic invertebrates and fry; largest individuals are mostly piscivorous, especially since the introduction of Gobio holurus. Spawns in lake, close to underwater springs. Large-sized individuals probably undertake migration to tributaries. Spawning extends over almost entire year. Threatened due to the introduction of Squalius cephalus, which feeds on its fry (Ref. 59043).

生命周期和交配行为 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼

亞洲: 湖 Ezenam , Daghestan ,高加索,俄國。

主要参考文献 上传您的参考资料 | 参考文献 | 合作者 | 合作者

Bogutskaya, N.G. and A.M. Naseka, 2002. An overview of nonindigenous fishes in inland waters of Russia. Proc. Zool. Inst. Russ. Acad. Sci. 296:21-30. (Ref. 45022)

世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))

  极度濒危 (CR) (B1ab(iii,v)+2ab(iii,v)); Date assessed: 01 January 2008

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

渔业: 潜在的兴趣
FAO - Publication: search | FishSource |

更多信息

营养生态学
食物(猎物)
食性组成
食物消耗量
口粮
捕食者
生态学
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人口动态
成长参数
最大年龄/尺寸
长度-重量关系
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体长-频率
质量转换
入添量
丰度
生命周期
繁殖
成熟度
成熟度/腮部关系
孕卵数
产卵场
产卵群

卵的发育
仔鱼
稚鱼动力学
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特别资料

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网络资源

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes: , | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | 树状分类阶层 | Wikipedia: 转至, 搜寻 | World Records Freshwater Fishing | 动物学的记录

基于模型的估算

系统发育多样性指数 (参考文献 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00486 - 0.02255), b=3.03 (2.86 - 3.20), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
营养阶层 (参考文献 69278):  3.8   ±0.5 se; based on size and trophs of closest relatives
回复力 (参考文献 120179):  非常低的, 最小族群倍增时间超过14 年 (Preliminary K or Fecundity.).
渔业脆弱性 (Ref. 59153):  Very high vulnerability (83 of 100). 🛈
价格分类 (Ref. 80766):   Very high.