分類 / Names
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / 深さの範囲 / distribution range
生態学
海; 新鮮な水; 汽水性の 底生の; 両側回遊性 (Ref. 46888). Tropical; 16°N - 18°S, 19°W - 14°E
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 12.4 cm TL オス/雌雄の選別がない; (Ref. 57413)
背面の脊椎 (合計) : 7 - 8; 背鰭 (合計) : 7 - 9; 肛門の骨: 1; 臀鰭: 9 - 10. Diagnosis: 14-24 predorsal scales, usually 19-22; cheek and opercle scaled (Ref. 81660). 28-33 scales in longitudinal series (including 2 or 3 scales on caudal fin base)(Ref. 57413). 8-12 scales in rearward transverse series (Ref. 57413, 81660). 1st dorsal fin: VI-VII; 2nd dorsal fin: I,7-9; anal fin: I,9-10; pectoral fins: 11-14 (Ref. 57413, 81660). Caudal fin rounded with 15 segmented rays, 13 of which are branched (Ref. 57413). Sensory canals absent on head (Ref. 57413), sensory papillae on cheek form horizontal rows (Ref. 81660). About 10 gill rakers on upper limb, and 20 on lower limb of first gill arch (Ref. 57413), 29-37 in total (Ref. 81660).
Coloration: Preserved specimens: brownish (Ref. 57413, 81660) or tan (Ref. 81660) dorsally on head and body. Ventral surface of belly pale (Ref. 57413). Most mid-lateral scales with spots equal in depth to scales forming an interrupted band extending from pectoral fin base to caudal fin base (Ref. 81660). About 2 longitudinal bands sometimes present just dorsal to midline of scales (Ref. 57413). Dark brown or black spot just posterior and dorsal to operculum (Ref. 57413), above the pectoral fin base on side of nape extending onto upper pectoral fin base (Ref. 81660), sometimes a smaller spot below this (Ref. 57413). Dorsum with 7-8 irregular dark saddles, becoming lighter ventrally below the mid-lateral row of spots; thin infraorbital bar reaching from eye just behind angle of jaw to edge of gular fold; a pair of dark bands running posteriorly from lower half of eye to edge of preopercle (Ref. 81660). Vertical brown bar at base of caudal fin (Ref. 57413). First dorsal fin with 3-4 horizontal bands, second dorsal fin with 3-4 rows of interradial spots (Ref. 81660). Caudal fin with several vertical, crescentric bands of small spots (Ref. 57413, 81660). Anal fin light brown (Ref. 57413), with 3 discretely edged horizontal bands (Ref. 81660). Pelvics light brown with central rays sometimes darker (Ref. 57413), dark line crossing bases of rays (Ref. 81660). Pectorals transparent (Ref. 57413) or dusky (Ref. 81660). Live specimens: pale olive-green on back and white on belly; red-brown spots on 1st dorsal, 2nd dorsal and anal fins, latter 2 also with light yellow spots near distal margin; caudal fin with red-brown spots near base, and yellow or orange spots posteriorly (Ref. 57413).
Body shape (shape guide): fusiform / normal.
Facultative air-breathing in the genus (Ref. 126274); Inhabits brackish water estuaries, creeks, lagoons and mangrove areas; occasionally enters freshwater (Ref. 7391, 57413, 81660). Known to be tolerant of wide range of salinity. Used as bio-control agents, e.g., use in control of mosquito larva (Ref. 42628). Endemic to West African coastline from Senegal to the Cunene River in Namibia (Ref. 92840).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Spawns in caves or on top of plants. Sometimes several females spawn with one male.
Harrison, I.J., P.J. Miller and F. Pezold, 2003. Eleotridae. p. 670-690 In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douce et saumâtres de l'Afrique de l'Ouest, Tome 2. Coll. Faune et Flore tropicales 40. Musée Royal de l'Afrique Centrale, Tervuren, Belgique, Museum National d'Histoire Naturalle, Paris, France and Institut de Recherche pour le Développement, Paris, France. 815 p. (Ref. 57413)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-1)
Human uses
水産業: 興味がない
用具
特記事項
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インターネットの情報源
Estimates based on models
Preferred temperature (参照
123201): 23.4 - 27.9, mean 26.5 °C (based on 64 cells).
Phylogenetic diversity index (参照
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00531 - 0.01717), b=3.11 (2.95 - 3.27), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
栄養段階 (参照
69278): 2.5 ±0.23 se; based on food items.
回復力 (参照
120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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