分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cichliformes (Cichlids, convict blennies)
鱸形目 (Cichlids, convict blennies) >
Cichlidae (Cichlids)
慈鯛科魚類 (Cichlids) > Pseudocrenilabrinae
Etymology: Copadichromis: Greek, kopas, -ados = carved + Chromis, see; trewavasae: Named in honor of Dr. Ethelwynn Trewavas, for her life-long work on Malawi cichlids (Ref. 47113).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; 深度上下限 10 - 30 m (Ref. 47113), usually 15 - 25 m (Ref. 57549). 熱帶
Africa: Endemic to Lake Malawi, occurring around Likoma and Chizumulu islands, at Cobwe and between Makonde and Manda.
非洲: 馬拉威湖。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 10.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 47113); 8.3 cm SL (female)
背棘 (總數) : 15 - 17; 背的軟條 (總數) : 9 - 12; 臀棘: 3; 臀鰭軟條: 8 - 9. Diagnosis: 3 distinct spots on flank (Ref. 47113, 57549). Supra-pectoral spot about 1.5 times supra-anal spot and in contact with the upper lateral line; supra-anal spot separate from upper lateral line; no narrow black submarginal band in dorsal fin (Ref. 57549). Male breeding coloration: black ventral body and blue to white blaze on dorsum above lateral line (Ref. 47113, 57549), until posterior end of dorsal fin and continuing onto upper margin of caudal fin (Ref. 57549). 15-18 gill-rakers; 27 dorsal rays in total; caudal peduncle length 5.9 times in SL; caudal peduncle depth 8.1 times in SL (Ref. 47113). Female C. trewavasae cannot be reliably distinguished from those of C. verduyni (ref. 57549).
身體 2.5-2.9 標準體長比率的深度; 頭長 2.5-3.2 標準體長比率.(參考文獻 47113) 眼直徑 2.5-3.5個 HL比率; 眼間骨寬度 3.8-5.2個 HL比率; 上頜骨前的莖 3.0-4.0個 HL比率與眶前骨 4.9-7.4 HL比率的深度.(參考文獻 47113) 在 2 到 3 列中的齒在上面的與在下頜中的 2 到 4 列.(參考文獻 47113) 外部的列不公平地包含雙尖齒, 內部的列單犬齒或不公平三個尖頭在雌性與不成熟的雄性中; 外部的列在成熟的雄性中有大的單犬齒。 (參考文獻 47113) 胸鰭長度 2.6-3.3 標準體長比率.(參考文獻 47113) 尾柄 5.4-6.3 標準體長比率, 梗深度 1.3-1.5 倍於體長.(參考文獻 47113) 鱗片: 32-34個鱗片形成一縱列.(參考文獻 47113) 在側面上有三條明顯的斑點。 (參考文獻 47113)
Inhabits the sand/rock interface (Ref. 47113, 57549) where sand and rocks are found in almost equal proportions (Ref. 47113). Territorial males construct a bower next to a rock, under which spawning takes place; females normally occur in small groups rarely numbering more than 10 individuals and remain close to the bottom (Ref. 57549). Mouthbrooding females remain closer to the bottom than foraging females and sometimes form small groups (Ref. 47113). Both males and females feed on plankton in the water column near the bottom and on benthic invertebrates (Ref. 57549).
Copadichromis trewavasae 出現於沙子與岩石被發現於幾乎相等的比例的馬拉威湖的中間棲息地中。 (參考文獻 47113) 嘴繁殖期的雌性超過覓食保持更靠近底部雌性而且有時形成小群魚群。 (參考文獻 47113)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
非洲: 馬拉威湖。
Konings, A., 1999. Descriptions of three new Copadichromis species (Labroidei; Cichlidae) from Lake Malawi, Africa. Trop. Fish Hobbyist 47(9):62-84. (Ref. 47113)
人類使用
漁業: 商業性; 水族館: 商業性
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00700 - 0.03275), b=2.97 (2.80 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.4 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
