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Knipowitschia longecaudata (Kessler, 1877)

Longtail dwarf goby
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Image of Knipowitschia longecaudata (Longtail dwarf goby)
Knipowitschia longecaudata
Picture by Naseka, A.M.


Turkey country information

Common names: Kaya balığı, Kayabalığı, Longtail goby
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from the Black Sea, European Black Sea watersheds and Anatolian Black Sea watersheds (Ref. 58342). Also Ref. 106151. Threatened by habitat loss and eutrophication/pollution (Ref. 58342). Status of threat: Endangered (Ref. 58342). EurTurk
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/tu.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Fricke, R., M. Bilecenoglu and H.M. Sari, 2007
National Database: CLOMFOT

Common names from other countries

Классификация / Names народные названия | синонимы | Catalog of Fishes(род, виды) | ITIS | CoL | WoRMS | Cloffa

> Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobionellinae
Etymology: Knipowitschia: Because of N.M.Knipowitsch, a zoologist and Russian ichthyologist from the Academy of Sciences. Expeditions in "Pomor" and "Pervosvanniy" ships to Azov and Black sea (1898-1908).

Environment: milieu / climate zone / depth range / distribution range экология

морской; пресноводный; солоноватоводный демерсальный.   Temperate; 4°C - 20°C (Ref. 2059); 48°N - 42°N, 30°E - 54°E

распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | Faunafri

Eurasia: Brackish portions of the Black Sea, Sea of Azov and Caspian Sea.

Length at first maturity / Size / Вес / Возраст

Maturity: Lm 2.0  range ? - ? cm
Max length : 5.0 cm TL самец/пол неопределен; (Ref. 2058); 3.5 cm TL (female)

Краткое описание определительные ключи | морфология | морфометрия

колючие лучи спинного плавника (общее число) : 6 - 8; членистые (мягкие) лучи спинного плавника (общее число) : 7 - 9; колючие лучи анального плавника: 1; членистые (мягкие) лучи анального плавника: 8 - 9. This species is distinguished from its congeners by the following characters: upper part of caudal fin longer than the lower part; anterior extremity of anterior oculoscapular canal in front of middle of eye; no posterior oculoscapular canal; back unscaled in front of origin of second dorsal; breeding males with 4-8 dark bars when alive; total scales in midlateral series 33-40 (Ref. 59043).

биология     глоссарий (например epibenthic)

Occur in shallow water, on sand and among weeds (Ref. 4696). Live less than 2 years. Feed on small benthic invertebrates (Ref. 59043). Spawn after first winter. Females may spawn several times during a season. Males defend eggs in cavities under stones, plant material or molluscs shells (Ref. 59043) like underside of lamellibranch valves (Cardium, Monodonta, Unio, etc.) (Ref. 4696). Eggs hatch at 3.0-3.8 mm (Ref. 59043).

Life cycle and mating behavior Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки

Males defend eggs in cavities under stones, plant material or molluscs shells (Ref. 59043). Females spawn several times during a season (Ref. 59043).

Основная ссылка Upload your references | ссылки | координатор | соавторы

Miller, P.J., 1986. Gobiidae. p. 1019-1085. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the North-eastern Atlantic and the Mediterranean. Volume 3. UNESCO, Paris. (Ref. 4696)

Статус Красного Списка МСОП (Ref. 130435)

  Не вызывающий беспокойства (LC) ; Date assessed: 01 January 2008

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

  Harmless




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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [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).
Trophic level (Ref. 69278):  3.4   ±0.4 se; based on size and trophs of closest relatives
устойчивость к внешним воздействиям (Ref. 120179):  высокий, минимальное время удвоения популяции до 15 месяцев (tmax < 2; tm < 1 (8-10 months);).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).