Glaucostegus cemiculus, Blackchin guitarfish : fisheries, gamefish

Glaucostegus cemiculus (Geoffroy Saint-Hilaire, 1817)

Blackchin guitarfish
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Glaucostegus cemiculus   AquaMaps   Data sources: GBIF OBIS
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  • Image of Glaucostegus cemiculus (Blackchin guitarfish)
    Glaucostegus cemiculus
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  • Image of Glaucostegus cemiculus (Blackchin guitarfish)
    Glaucostegus cemiculus
    Juvenile picture by Wirtz, P.

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii 板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) > Rhinopristiformes (Shovelnose rays) > Glaucostegidae (Giant guitarfishes)

Environment: milieu / climate zone / depth range / distribution range 生态学

; 海洋; 半咸淡水 居于水底的; 深度上下限 9 - 100 m (Ref. ), usually - m (Ref. ).   亞熱帶的; 0°C - ; 42°N - 19°S, 19°W - 38°E (Ref. 114953)

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Eastern Atlantic: northern Portugal to Angola, including the Mediterranean Sea.
東大西洋: 葡萄牙到安哥拉北部, 包括地中海。

Length at first maturity / 大小 / 重量 / 年龄

Maturity: Lm ?, range 153 - 164 cm
Max length : 242 cm TL 雄鱼/尚未辨别雌雄; (Ref. 40637); common length : 150 cm TL 雄鱼/尚未辨别雌雄; (Ref. 3710); 最大体重: 49.9 kg (Ref. 40637)

简单描述 型态特徵 | 形态测量图

脊椎骨: 68 - 73. This large to very large species has a plain beige to brownish wedge-shaped disc; long and rather broad triangular snout with a broadly rounded rostral cartilage at its tip and wide oblique nostrils with a narrow anterior opening; disc thickened centrally, length 1.2-1.3 times its width, anterior margins slightly undulate, often weakly concave before broadly rounded outer corner; snout moderately acute, its angle 59-63°, tip narrowly rounded not extended forward as a distinct lobe; large orbit, length 5-6 times in preorbital length, 1.5-2 in interorbital space; rostral ridges are narrowly separated posteriorly and almost joined anteriorly; 2 fleshy spiracular folds, with innermost fold smaller; upper jaw with 62-72 tooth rows; large and oblique nostrils, its length 1.4 in internasal width, ca 81 nasal lamellae, anterior nasal flaps are confined to anterior margin of nostril; rough skin covered entirely with small denticles; well-developed thorns, usually along edge of rostral cartilage and small patches around orbits and above spiracles; each shoulders with 1-3 thorns that persist in adults, a median row of enlarged thorns extending from nape to first dorsal fin, a few thorns between dorsal fin; long tail ca 1.5 times its disc length; dorsal fins are large and widely spaced, ca. 2.1 times base length of first dorsal fin, apices narrowly rounded; pectoral fin radials 68-73; 204-212 total vertebrae (Ref. 114953).
嘴的脊狭窄地分开,几乎加入前面; 前面的鼻叶延伸一点点如果任何的, 后鼻盖狭窄的; 呼吸孔有两个大约相同大小的发展良好的摺层; 在呼吸孔之间,刺眼窝的内缘的周围呈现, 在肩上而且沿着体盘与尾部的中线; 上表皮褐色,腹面白色的, 但是通常在吻上的一个黑色的斑块主要在稚鱼.(参考文献 6675)

生物学特性     字汇 (例如 epibenthic)

A coastal and benthic species found on sandy and muddy bottoms, intertidal zone to at least 80 m depth. Feeds mainly on benthic crustaceans and small fishes. Maximum length would probably reach up to 265 cm TL, common at about 200 cm TL. Males mature at 138-154 cm TL, females at 153-164 cm TL. In the Mediterranean Sea, males mature at smaller size, about 100-110 cm TL and females at about 110 cm TL. Size at birth about 34 cm TL. Produces litters up to 20 pups (more common 6-7 pups) (Ref. 114953). Ovoviviparous, one or two litters per year, of 4-6 embryos.

栖息于沙泥底, 从影像水到大约 100 公尺。 慢地游泳于底部之上或部份地埋藏。 吃无脊椎动物与鱼类。 卵胎生的, 一或二个胎窝每年, 4-6个胚胎。

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). One or two litters per year, of 4-6 embryos (Ref. 6675).東大西洋: 葡萄牙到安哥拉北部, 包括地中海。

主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

Bauchot, M.-L., 1987. Raies et autres batoides. p. 845-886. In W. Fischer, M.L. Bauchot and M. Schneider (eds.) Fiches FAO d'identificationpour les besoins de la pêche. (rev. 1). Mèditerranée et mer Noire. Zone de pêche 37. Vol. II. Commission des Communautés Européennes and FAO, Rome. (Ref. 3261)

世界自然保护联盟红皮书 (Ref. 124695)

  极度濒危 (CR) (A2d); Date assessed: 03 December 2018

CITES


CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

渔业: 低经济; 游钓鱼种: 是的
FAO - Publication: search | FishSource | 周边海洋

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网络资源

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes: , | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: 基因组, 核苷酸 | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | 国家资料库 | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | 树状分类阶层 | Wikipedia: 转至, 搜寻 | World Records Freshwater Fishing | 动物学的记录

Estimates based on models

Preferred temperature (Ref. 115969): 19.2 - 27.9, mean 25.4 °C (based on 94 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5156   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00149 - 0.00929), b=3.09 (2.87 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  4.0   ±0.70 se; based on food items.
Generation time: 5.4 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
回复力 (Ref. 120179):  非常低的, 最小族群倍增时间超过14 年 (Fec=4).
脆弱性 (Ref. 59153):  High vulnerability (55 of 100) .
价格分类 (Ref. 80766):   Low.
Nutrients (Ref. 124155):  Calcium = 40.4 [7.3, 140.8] mg/100g ; Iron = 1.13 [0.29, 3.42] mg/100g ; Protein = 18.3 [16.1, 20.3] % ; Omega3 = 0.465 [0.186, 1.116] g/100g ; Selenium = 40.8 [7.8, 126.2] μg/100g ; VitaminA = 3.72 [1.14, 11.97] μg/100g ; Zinc = 0.61 [0.29, 1.56] mg/100g (wet weight);