Japan country information

Common names: Chousen-etsu, Estuarine tapertail anchovy, Etsu
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs only in Ariake Sound (Ref. 189). Status of threat: Endangered (Ref. 94887).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ja.html
National Fisheries Authority: http://www.maff.go.jp/eindex.html
Occurrences: Occurrences Point map
Main Ref: Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984
National Database:

Common names from other countries

刀鲚(刀鱼), Anchovies, Pesce topo pelagico, ... more

Classification / Names आम नाम | उपशब्द | Catalog of Fishes(वर्ग, प्रजाति) | ITIS | CoL | WoRMS | Cloffa

> Clupeiformes (Herrings) > Engraulidae (Anchovies) > Coiliinae
Etymology: Coilia: Greek, koilia, -as = abdomen, hollow (Ref. 45335).
More on authors: Temminck & Schlegel.

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

समुद्री; स्वच्छ जल, अलवण जल; खारा; ऐनाढरोमस (Ref. 51243); गहराई सीमा 0 - 50 m (Ref. 189). Subtropical; 42°N - 21°N, 109°E - 134°E (Ref. 189)

वितरण देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | Point map | भूमिका | Faunafri

Northwest Pacific: Canton north to Ariake Sound, southwestern Japan, including all of Yellow Sea and off western coasts of Korea. Penetrates over 1000 km up the Yangtze River.

Length at first maturity / आकार / वज़न / Age

Maturity: L_m ?, range 24 - 27 cm
Max length : 41.0 cm TL पुल्लिंग / अलिंग; (Ref. 189)

Short description आकृति विज्ञान | मौरफोमैटरिक्स

पृष्ठीय रीढ़ (सम्पूर्ण): 0; गुदा कांटा 0; ऐनल सौफट रेज़: 80. Body tapering, belly rounded before pelvic fins, with 16 to 26 + 25 to 36 = 43 to 61 keeled scutes from isthmus to anus. Maxilla long, reaching to or almost to base of first pectoral fin ray. Pectoral fin with 6 filaments; branched fin rays longer than those of pelvic fin.

Occurs in coastal waters, estuaries and reaching up to middle parts of rivers, apparently able to tolerate freshwater (Ref. 189, 11230). Lives in not really clean water but not really turbid water either (Ref. 12218). Goes to the deep water areas of rivers at night (Ref. 12218). Planktivore (Ref. 12218). Spawns around three times in a lifetime and spawning occurs in between reeds (Ref. 12218). In Ariake Sound, Japan it breeds from May to August, the fishes running about 15 km up the Chikugo River and spawning in freshwater, the spherical eggs floating down and hatching near the river mouth. Its relatively large size makes it a more esteemed food fish than most Coilia. Used in Chinese medicine (Ref. 12166).

Life cycle and mating behavior परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा

Spawn in school (Ref. 205).

Main reference Upload your references | संदर्भ | संयोजक | सहयोगीयो

Whitehead, P.J.P., G.J. Nelson and T. Wongratana, 1988. FAO Species Catalogue. Vol. 7. Clupeoid fishes of the world (Suborder Clupeoidei). An annotated and illustrated catalogue of the herrings, sardines, pilchards, sprats, shads, anchovies and wolf-herrings. FAO Fish. Synop. 125(7/2):305-579. Rome: FAO. (Ref. 189)

IUCN Red List Status (Ref. 130435)

Endangered (EN) (A2bd); Date assessed: 01 March 2017

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

मात्स्यिकी: व्यापारिक

FAO(Publication : search) | FishSource |

अधिक जानकारी

देश
ऐफ ऐ ओ क्षेत्र
Ecosystems
संयोग
भूमिका
Stocks
पारिस्थितिकी
आहार
खाद्य पदार्थ
आहार खपत
खोराक

आम नाम
उपशब्द
चपायचय
परभक्षी
ईकोटोकसीकोलौजी
पुनरुत्पत्ति
परिपक्व अवधि
मछलीऔ का अंडे देना
Fecundity
अंडे
Egg development

Age/Size
बाढ़
Length-weight
Length-length
Length-frequencies
मौरफोमैटरिक्स
आकृति विज्ञान
लार्वा
लारवल गतिकी
भर्ती
बहुतायत

संदर्भ
जलीयकृषि
जलीयकृषि रूपरेखा
खींच
आनुवंशिकी
Electrophoreses
हैरेटिबिलटी
बीमारी
प्रक्रमण
Mass conversion

सहयोगीयो
तस्वीरे
Stamps, Coins Misc.
ध्वनि
सिगुयटिरा
रफ्तार
तैरने के प्रकार
गिल क्षेत्र
Otoliths
दिमाग
दृष्टि

साधन

Special reports

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इंटरनेट स्रोत

Estimates based on models

Preferred temperature (Ref. 115969): 12.3 - 25.2, mean 17.5 (based on 218 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00251 (0.00190 - 0.00332), b=3.07 (3.02 - 3.12), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Trophic level (Ref. 69278): 3.0 ±0.00 se; based on food items.

लौटाव (Ref. 120179): माध्यम, न्यूनतम जनसंख्या दुगनी होने का समय 1.4 - 4.4 वर्ष। (K=0.35; tmax=5).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (25 of 100).

Price category (Ref. 80766): Medium.

Coilia nasus Temminck & Schlegel, 1846