Actinopterygii
辐鳍鱼纲 (条鳍鱼) >
Siluriformes (Catfish) >
Ariidae (Sea catfishes) > Galeichthyinae
Etymology: Galeichthys: Greek, galeos = a shark + Greek, ichthys = fish (Ref. 45335). More on author: Valenciennes.
环境 / 气候 / 范围
生态学
; 海洋; 半咸淡水 居于水底的; 非产卵性溯降河的 (Ref. 51243); 深度上下限 ? - 120 m (Ref. 27121). , preferred 23°C (Ref. 107945); 17°S - 11°S, 14°E - 33°E
Southeast Atlantic: Walvis Bay, Namibia to the vicinity of East london, South Africa (Ref. 85159). Records from Guinea-Bissau as Tachysurus feliceps and from Guinea as Arius feliceps are erroneous.
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm ?, range 25 - 27.5 cm
Max length : 55.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 3976); common length : 35.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 3546)
脊椎骨: 51 - 52. This species is distinguished by the following characters: head longer than, or nearly as long as, broad; tooth patches are posterior to premaxillary band touch at midline; relatively long and thin maxillary barbel, extending at least to pectoral fin spine origin (longer in females); dorsal fin spine length more than 70% of its height; pectoral-fin spine at vertical extends at most to hind edge of dorsal fin base; deeply forked caudal fin with moderately slender, with pointed lobes, upper lobe longer; caudal peduncle approximately twice as long as deep; 11-14 gill-rakers on anterior face of first arch; upper two-thirds of body darkened, some lateral speckling and belly stark white; median anterior cranial fontanelle (of exposed skull) elongate and bullet-shaped; smooth and shallow median cranial depression, deepest posteriorly at frontal/supraoccipital suture. 10-12 pectoral fin rays; 51-52 (17 precaudal, 34-35 caudal) total vertebrae. Dimorphism of posterior (humeral) process of cleithrum obvious externally, in females, fan-shaped, in males triangular (Ref. 85159).
Generally found in large shoals on muddy bottoms in turbid waters, usually on the coastline and estuaries. Also found in rivers (Ref. 3976). Feed on crayfish, small fish, and crabs (Ref. 27121). Considered a nuisance of shore and ski-boat anglers in southern Africa as little else is caught (Ref. 12484). Spines are poisonous and wounds should be treated immediately. Marketed smoked (Ref. 36731).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
A paternal mouthbrooder.
Kulongowski, C., 2010. Revision of the ariid catfish genus Galeichthys Valenciennes (subfamily Galeichthyinae), with description of a new species from South Africa and designation of a neotype for G. ater Castelnau. Smithiania Bull. (12):9-23. (Ref. 85159)
CITES (Ref. 94142)
Not Evaluated
人类利用
渔业: 商业性; 水族馆: 公众的水族馆
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参考文献养殖养殖信息品种遗传学基因序列遗传率疾病加工Mass conversion
合作者照片Stamps, Coins声音神经毒速度泳型鳃区Otoliths脑重体重比眼睛色素
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Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00381 - 0.02510), b=3.03 (2.81 - 3.25), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.8 ±0.2 se; Based on diet studies.
回复力 (Ref.
69278): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Assuming tm=2-3).
脆弱性 (Ref.
59153): Moderate to high vulnerability (52 of 100) .
