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Tetrapturus pfluegeri Robins, de & Sylva, 1963

Longbill spearfish
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Tetrapturus pfluegeri
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Common names from other countries

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

Teleostei > Carangiformes (Jacks) > Istiophoridae (Billfishes)
Etymology: Tetrapturus: Greek, tetra = four + Greek, pteron, fin, wing (Ref. 45335).
  More on authors: Robins, de & Sylva.

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

海洋; 海洋洄游的 (Ref. 51243); 深度上下限 0 - 200 m (Ref. 43), usually 100 - ? m (Ref. 4770).   亞熱帶的; 44°N - 33°S, 98°W - 17°E (Ref. 43)

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

Atlantic Ocean: widely distributed in offshore waters, much more densely so in the western than in the eastern Atlantic. Highly migratory species.
大西洋: 廣泛分佈於離岸水域, 更加濃密地如此在西方者中超過在東大西洋中。 高度遷移的種,1982年海事法會議的附件一.(參考文獻 26139)

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 254 cm FL 雄鱼/尚未辨别雌雄; (Ref. 40637); common length : 165 cm OT 雄鱼/尚未辨别雌雄; (Ref. 43); 最大体重: 58.0 kg (Ref. 40637)

简单描述 检索表 | 型态特徵 | 形态测量图

背棘 (总数) : 0; 背的软条 (总数) : 50 - 57; 臀棘: 0; 臀鳍软条: 18 - 21; 脊椎骨: 24. Blue-black above, silvery white splattered with brown on the sides, silvery white below; dorsal fins dark blue; pectorals blackish brown, occasionally with tinges of greyish white; pelvic fins blue-black with a black fin membrane; 1st anal fin dark blue with silvery white at base; 2nd anal fin blackish brown.
蓝黑色的上方, 银白色侧边上点缀着褐色, 下面银白色的; 背鳍深蓝色; 胸鳍暗褐色的, 偶然地以灰白色的淡色; 腹鳍蓝黑色的具有一个黑色的鳍薄膜; 第一臀鳍深蓝色具有银白色在基底; 第二个臀鳍暗褐色的。

生物学特性     字汇 (例如 epibenthic)

Oceanic species, chiefly found in offshore waters, usually above the thermocline. Feed mainly on pelagic fishes and squids (Ref. 4770). Females probably spawn once a year (Ref. 4770). Marketed frozen.

大洋性鱼种, 主要地发现于离岸水域了, 通常在温水层之上。 主要吃大洋性的鱼与乌贼。 (参考文献 4770) 在市场上冷冻销售了。

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼

Maturation seems to occur at the same time rather than in the same season both in the northern and southern hemisphere, which could be suggestive of homogeneity of the population of this species. Females probably spawn once a year (Ref. 4770).大西洋: 廣泛分佈於離岸水域, 更加濃密地如此在西方者中超過在東大西洋中。 高度遷移的種,1982年海事法會議的附件一.(參考文獻 26139)

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

Nakamura, I., 1985. FAO species catalogue. Vol. 5. Billfishes of the world. An annotated and illustrated catalogue of marlins, sailfishes, spearfishes and swordfishes known to date. FAO Fish. Synop. 125(5):65p. Rome: FAO. (Ref. 43)

世界自然保护联盟红皮书 (Ref. 130435)

  最不相关 (LC) ; Date assessed: 15 September 2010

CITES (Ref. 128078)

Not Evaluated

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(渔业: 产生; publication : search) | FishSource | 周边海洋

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Trophic ecology
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Ecology
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Estimates based on models

Preferred temperature (Ref. 115969): 14.1 - 23.7, mean 18.2 (based on 140 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5630   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00193 - 0.01034), b=3.14 (2.94 - 3.34), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  4.4   ±0.4 se; based on diet studies.
回复力 (Ref. 120179):  中等的, 族群倍增时间最少 1.4 - 4.4年 (Assuming tm=2-4).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).
Climate Vulnerability (Ref. 125649):  High to very high vulnerability (65 of 100).
价格分类 (Ref. 80766):   Low.