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Gymnocephalus schraetser (Linnaeus, 1758)

Schraetzer
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Gymnocephalus schraetser
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分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Perciformes/Percoidei (Perchs) > Percidae (Perches) > Percinae
Etymology: Gymnocephalus: Greek, gymnos = naked + Greek, kephale = head (Ref. 45335).
More on author: Linnaeus.

Environment: milieu / climate zone / depth range / distribution range 生态学

; 淡水 居于水底的; pH range: 7.0 - 7.5; dH range: 10 - 15. 溫帶; 4°C - 18°C (Ref. 2059); 49°N - 43°N, 8°E - 30°E

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Europe: Danube drainage.
歐洲: 多瑙河系統, Kamchiya 河。 在伯恩公約的附錄 3 中 (受保育的動物群).

Length at first maturity / 大小 / 重量 / 年龄

Maturity: Lm 14.0, range 12 - 16 cm
Max length : 30.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 556); common length : 15.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 556); 最大体重: 250.00 g (Ref. 556); 最大年龄: 15 年 (Ref. 59043)

简单描述 检索表 | 型态特徵 | 形态测量图

背棘 (总数) : 17 - 19. Distinguished from its congeners by having unique characters of 3 discontinuous dark stripes along flank and 55-62 + 4-5 scales along lateral line. Differs further from other species of the genus by having 17-19 dorsal spines (Ref. 59043).

生物学特性     字汇 (例如 epibenthic)

Adults occur in groups in open sand and mud bottom of large rivers with moderate current. Nocturnal, feeding on small invertebrates, especially molluscs, usually crepuscular but may also feed at daytime. Larvae are benthic (Ref. 59043).

栖息于多瑙河的较深部分, 在沙与碎石之上。 吃蠕虫,片脚类动物,昆虫幼生与鱼卵。 从四月到五月产卵。 卵在石头, 等等。上被在宽的地带附上

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼

Eggs are attached to stones by females (Ref. 59043).歐洲: 多瑙河系統, Kamchiya 河。 在伯恩公約的附錄 3 中 (受保育的動物群).

主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)

世界自然保护联盟红皮书 (Ref. 130435)

  最不相关 (LC) ; 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: 没有兴趣; 游钓鱼种: 是的; 诱饵: usually
FAO - Publication: search | FishSource |

更多信息

Trophic ecology
食物相
Diet compositions
Food consumptions
Food rations
捕食者
Ecology
生态学
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
体长-频率
Mass conversions
Recruitments
Abundances
Life cycle
繁殖
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
仔鱼
稚鱼动力学
Distribution
国家
FAO区域
生态系
标本纪录
简介
BRUVS - Videos
Anatomy
Gill areas
脑重体重比
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
游泳类型
Swimming speeds
Visual pigment(s)
鱼的声音
Diseases / Parasites
Toxicities (LC50s)
Genetics
遗传学
Electrophoreses
Heritabilities
Human related
Aquaculture systems
水产养殖描述
品种
Ciguatera cases
Stamps, coins, misc.
Outreach
合作者
References
参考文献

工具

特别资料

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网络资源

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes: , | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: 基因组, 核苷酸 | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | 国家资料库 | Otolith Atlas of Taiwan Fishes | 公众的水族馆 | PubMed | Reef Life Survey | Socotra Atlas | 树状分类阶层 | Wikipedia: 转至, 搜寻 | World Records Freshwater Fishing | 动物学的记录

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00476 - 0.02414), b=3.05 (2.86 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  3.4   ±0.43 se; based on food items.
Generation time: 5.5 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
回复力 (Ref. 120179):  低的, 最小族群倍增时间4.5 - 14 年 (tm=2-3; tmax=15).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (42 of 100).