Carcharhinus sealei, Blackspot shark : fisheries, gamefish

Carcharhinus sealei (Pietschmann 1913)

Blackspot shark
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Carcharhinus sealei   AquaMaps   Data sources: GBIF OBIS
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Carcharhinus sealei
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分类 / Names 俗名 | 同种异名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii 板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) > Carcharhiniformes (Ground sharks) 白眼鮫目 (Ground sharks) > Carcharhinidae (Requiem sharks) 白眼鮫科 (Requiem sharks)
Etymology: Carcharhinus: Greek, karcharos = sharpen + Greek, rhinos = nose (Ref. 45335);  sealei: Named for Alvin Seale (1871-1958),.

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

; 海洋 礁区鱼类; 深度上下限 0 - 40 m (Ref. 244).   熱帶; 24°N - 30°S

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

Indo-West Pacific: reported to occur throughout the area, from Kenya to Indonesia; north to China. Distribution west of the Indo-Malay Peninsual needs validation.
印度-西太平洋: 分散的來自東非到中國與澳洲的紀錄。 時常與 杜氏白眼鮫〔Carcharhinus dussumieri〕 互相混淆而且時常有被歸類於 Carcharhinus tjutjot 黑印真鯊〔Carcharhinus menisorrah〕 .

Length at first maturity / 大小 / 重量 / 年龄

Maturity: Lm ?, range 68 - 75 cm
Max length : 100.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 3678); 84.6 cm TL (female)

简单描述 型态特徵 | 形态测量图

A small species which is distinguished by the following characters: snout moderately long and bluntly pointed; upper anterior teeth oblique and blade-like, coarsely serrated laterally, lateral margin deeply notched and with several large and smooth basal cusplets; lower anterior teeth narrower, slightly oblique, lateral margins usually not notched and with several large basal serrae, mostly smooth; total tooth row 24-28/22-27 or 47-55; interdorsal space often without a ridge on midline, 19.0-22.4% TL; first dorsal fin is moderately tall and falcate, origin about opposite pectoral-fin free rear tip, length 14.7-16.0% TL, 1.3-1.7 times height, inner margin 2.1-2.7 in base; second dorsal fin is much smaller, broadly triangular, height 31-37% of first dorsal fin height, its origin slightly posterior to anal-fin origin; anal fin falcate, height 0.9-1.2 times second dorsal height, base 1.0-1.3 times second dorsal-fin base; body colour pale brownish to grey dorsally, whitish ventrally; second dorsal fin with a black blotch covering most of fin and often extending slightly onto upper surface of body, usually diffuse-edged and poorly defined from ground colour of fin; other fins are plain or with pale outer margins; total vertebral 146-163; monospondylous precaudal 42-48; diplospondylous precaudal 26-38; diplospondylous caudal 74-81; precaudal 71-82 (Ref. 89954).
一种小的, 细长的鲨鱼有一个长的, 圆形的吻又大的, 椭圆形的眼, 与斜尖的齿; 第二背鳍鳍有包含的鳍的一半或更多,其他的鳍平原的显着的黑色顶端。 (参考文献 5578) 浅灰色或背面灰褐色的, 腹面白色的; 在第二个背鳍上的黑色的斑点.(参考文献 9997)

生物学特性     字汇 (例如 epibenthic)

Found on the continental and insular shelves, from the surf line and intertidal region to deeper water (Ref. 244). Feeds on small bony fishes (including sea horses), prawns, and squid (Ref. 9997). Viviparous (Ref. 50449). Specimens caught with size ranging from 37.0-67.4 cm TL were found to be immature, males apparently begin to mature around 71.0 cm TL and birth size is between 32.0 and 37.0 cm TL (Ref. 89954). Often caught by shore anglers (Ref. 5485). Utilized as a food fish (Ref. 244).

栖息于大陆架与岛屿棚, 从碎浪区与潮间带的区域到较深的水域了。 (参考文献 244) 吃小的硬骨鱼类 (包括海洋马) ,虾与乌贼。 (参考文献 9997) 胎生的.(参考文献 50449) 时常被岸钓者钓获。 (参考文献 5485) 作为食用鱼.(参考文献 244)

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

Viviparous, with a yok-sac placenta; 1-2 pups per litter (Ref. 244); after a gestation period of ~ 9 months(Ref.58048). 33-45 cm TL at birth (Ref. 9997). Distinct pairing with embrace (Ref. 205).印度-西太平洋: 分散的來自東非到中國與澳洲的紀錄。 時常與 杜氏白眼鮫〔Carcharhinus dussumieri〕 互相混淆而且時常有被歸類於 Carcharhinus tjutjot 黑印真鯊〔Carcharhinus menisorrah〕 .

主要参考文献 Upload your references | 参考文献 | 合作者 : Compagno, Leonard J.V. | 合作者

White, W.T., 2012. A redescription of Carcharhinus dussumieri and C. sealei, with resurrection of C. coatesi and C. tjutjot as valid species (Chondrichthyes: Carcharhinidae). Zootaxa 3241:1-34. (Ref. 89954)

世界自然保护联盟红皮书 (Ref. 123251)

  临近濒危 (NT) ; Date assessed: 30 April 2003

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的 (Ref. 5485)





人类利用

渔业: 商业性; 游钓鱼种: 是的
FAO(Publication : search) | FishSource |

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Estimates based on models

Preferred temperature (Ref. 115969): 24.9 - 29.1, mean 28.2 °C (based on 1150 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00398 (0.00198 - 0.00801), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  4.2   ±0.4 se; based on diet studies.
回复力 (Ref. 120179):  非常低的, 最小族群倍增时间超过14 年 (Fec=1).
脆弱性 (Ref. 59153):  Moderate vulnerability (39 of 100) .
价格分类 (Ref. 80766):   Medium.