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Clupeiformes (Herrings) >
Engraulidae (Anchovies) > Engraulinae
Etymology: Encrasicholina: Greek, egkrasicholos, -os, -on = mixed with spleen.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
laut. Tropical; 17°N - 4°N, 116°E - 133°E (Ref. 189)
Western Central Pacific: Taiwan, Philippines, Indonesia and Tonga.
Size / Weight / umur
Maturity: Lm ? range ? - ? cm
Max length : 6.2 cm SL jantan/; (Ref. 124514)
Duri punggung (Keseluruhan (total)) : 0; Duri dubur: 0; Sirip dubur lunak: 15. This species is distinguished by the following set of characters: unbranched dorsal and anal fin rays 3; branched pectoral-fn rays 11-14 (modally 12); pseudobranchial flaments 16-22 (16); first gill arch with upper limb gill rakers 12-14 (13), lower limb 16-18 (17), total 28-32 (30); second gill arch with upper limb gill rakers 10-11 (10), lower limb 12-17 (16), total 22-27 (27); third gill arch with upper limb gill rakers 8-9 (9), lower limb 10-11 (10), total 18-20 (18); fourth gill arch with upper limb gill rakers 6-8 (7), lower limb 8-9 (8), total 14-16 (19); gill rakers 3-5 (4) on hind face of third gill arch; spine-like scutes on abdomen 3-6 (4); transverse scales 8-9 (9); exposed urohyal bony, without fleshy knobs; head is large, its length 28.3-29.8% (mean 28.9%) of SL; maxilla rather is long, its length 19.0-20.7% (19.9%) of SL, its posterior tip just reaching to anterior margin of preopercle; lower jaw is rather long, its length 19.1-20.5% (19.7%) of SL; orbit is long, its diameter 8.3-8.8% (8.6%) of SL; snout is long, its length 4.9-5.2% (5.1%) of SL; body is elongate, its depth 13.3-15.3% (14.5%) of SL; pelvic fin is short, its length 8.7-9.4% (9.0%) of SL (Ref. 124514).
Presumably schooling, although the three type (and only known) specimens were caught after 20 months of sampling. Evidently rare.
Spawn in school (Ref. 205).
Hata, H. and H. Motomura, 2021. Redescription of Encrasicholina oligobranchus (Wongratana 1983) (Clupeiformes: Engraulidae) and description of a new species of Encrasicholina from New Guinea. Ichthyol. Res. 68:277-286. (Ref. 124514)
Status IUCN Red List (Ref. 130435: Version 2024-2)
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: tidak ada kepentingan
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00250 - 0.01100), b=3.13 (2.95 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.1 se; based on size and trophs of closest relatives
Daya lenting (Ref.
120179): Tinggi, Waktu penggandaan populasi minimum kurang dari 15 bulan (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
