分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobionellinae
Etymology: Economidichthys: Greek, oikonomos = manager of a household, steward (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的; 深度上下限 ? - 15 m (Ref. 59043). 溫帶; 39°N - 38°N
Europe: endemic to the oligotrophic Lake Trichonis, western Greece.
歐洲: 貧營養的湖 Trichonis的特有種, 希臘西部。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 1.8 range ? - ? cm
Max length : 3.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 12215); 2.7 cm TL (female); 最大年龄: 1.75 年 (Ref. 59043)
简单描述
型态特徵 | 形态测量图
臀棘 1; 臀鳍软条: 9 - 11; 脊椎骨: 30 - 31. Body pale, with long vertical stripes in both sexes, some over 2/3 body depth; perianal organ small, less than half length of pelvic disc; pelvic anterior membrane depth about half pelvic spine length in ventral midline; body with well spaced scales in single series along lateral midline, and otherwise naked except on caudal peduncle and side of anterior abdomen; typical D2 I/10-11; interorbit with two transverse rows of sensory papillae.
身体灰白的有长的垂直斑纹雄性与雌性都有, 约超过 2/3个体高; 肛门周围的器官小的, 少于腹鳍体盘的一半长度; 在腹的中线中的腹鳍前面的薄膜深度大约一半的腹棘长度; 身体有在单一系列中有些间隔鳞片沿着侧面的中线, 与不一样地裸露的除了在尾梗上之外与前面腹部的侧边; 典型的 D 2个 I/10-11; 眼窝有两个横跨的列知觉的乳突。
With a mature female at 18 mm SL, this is the smallest European freshwater fish; 2.1 mm at hatching its larvae are the smallest free-living European vertebrates. Found in areas covered by aquatic vegetation, in reed stands; in sheltered bays down to 15 m (Ref. 59043); at the mouth of tributary streams and has been observed in small shoals near the surface, over open areas of gravel or stones (Ref. 26100). Feeds on invertebrates, mainly on cladocerans and larvae of mussel Dreissena polymorpha during the spawning season. Spawns after first winter, from February to May, with eggs (0.7 x 0.6 mm) deposited in a cavity (usually inside standing, broken reeds); these are cleaned and guarded by the male. A single nest may occupy up to 2000 eggs spawned by several females; with females spawning at least twice during the season. Eggs hatch in about a day, the larvae living on the surface layer, near shore, and after yolk absorption, live in deeper layers or near bottom, moving upward at night. Maximum known age is 21 months. Land reclamation, lake level fluctuations resulting to water abstraction and pollution threaten survival of this species (Ref. 59043).
成熟的母鱼 18 mm SL, 这是最小的欧洲淡水鱼。 发现在支流的嘴巴了。 曾经在小的浅滩接近水表面观察, 在砾石或石头的开放水域之上。 吃无脊椎动物。 从四月到五月产卵。 受到威胁的由于水资源减少与污染.(参考文献 26100)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Eggs are spawned in a cavity; they are cleaned and guarded by the male (Ref. 59043). A single nest is usually occupied by up to 2000 eggs spawned by several females. Females spawn at least twice during a season (Ref. 59043).歐洲: 貧營養的湖 Trichonis的特有種, 希臘西部。
Miller, P.J., 1990. The endurance of endemism: the Mediterranean freshwater gobies and their prospects for survival. J. Fish Biol. 37(Suppl.A):145-156. (Ref. 12215)
世界自然保护联盟红皮书 (Ref. 130435)
濒危 (EN) (B1ab(ii,iii)+2ab(ii,iii)); Date assessed: 31 January 2006
人类利用
更多信息
年龄范围成长体长-体重体长-体长体长-频率形态测量图型态特徵仔鱼稚鱼动力学入添量丰度BRUVS
参考文献养殖养殖信息品种遗传学Electrophoreses遗传率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.声音神经毒速度泳型鳃区Otoliths脑重体重比眼睛色素
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00442 - 0.02163), 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): 3.5 ±0.37 se; based on food items.
Generation time: 0.7 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
