Common names from other countries
分類 / Names
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
Issue
This species is synonym of Istiophorus platypterus in Eschmeyer (CofF ver. Jan. 2018) according to Collette et al., 2006 (Ref. 84358). Several authors consider it as a valid species.
Environment: milieu / climate zone / depth range / distribution range
生態学
海; 海洋回遊性 (Ref. 51243); 深さの範囲 0 - 200 m (Ref. 43). Subtropical; 21°C - 28°C (Ref. 43); 56°N - 55°S, 99°W - 18°E (Ref. 43)
Atlantic Ocean: in tropical and temperate waters approximately 40°N in the northwest Atlantic, 50°N in the northeast Atlantic, 40°S in the southwest Atlantic, and 32°S in the southeast Atlantic. Migrating to Mediterranean Sea, mostly based on juvenile specimens. Highly migratory species.
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm 133.5, range 121 - 146 cm
Max length : 315 cm TL オス/雌雄の選別がない; (Ref. 43); common length : 240 cm TL オス/雌雄の選別がない; (Ref. 5217); 最大公表体重: 58.1 kg (Ref. 43); 最大記録サイズ: 4 年 (Ref. 72497)
背面の脊椎 (合計) : 0; 背鰭 (合計) : 48 - 53; 肛門の骨: 0; 臀鰭: 9 - 12; 脊つい: 24.
Usually found in the upper layers of warm water above the thermocline, but also capable of descending to rather deep water. Often migrate into near-shore waters. Occasionally form schools or smaller groups of 3 to 30 individuals, but often occur in loose aggregations over a wide area. Feed mainly on small pelagic fishes but also takes bottom-dwelling organisms. Females grow larger (Ref. 4770). Utilized fresh, canned and frozen; eaten steamed (Ref. 9987).
Around Florida in USA, this species often moves inshore into shallow waters where females, swimming sluggishly with their dorsal fins extended and accompanied each by one or more males, may spawn near the surface in the warm season. However, spawning in offshore waters beyond the 100 fathom isobath was also reported from south of Cuba to Carolina, USA. Off southeast Florida, a 33.4 kg female may shed up to 4.8 million eggs in three batches during one spawning season.
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)
CITES (Ref. 128078)
Not Evaluated
Human uses
水産業: 商業; ゲームフィッシュ: はい
用具
特記事項
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インターネットの情報源
Estimates based on models
Preferred temperature (Ref.
115969): 16.3 - 27.4, mean 23.5 (based on 431 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7505 [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).
栄養段階 (Ref.
69278): 4.5 ±0.4 se; based on diet studies.
回復力 (Ref.
120179): 手段, １．４年～４．４年の倍増期間の最小個体群 (K=0.29-1.2 (?); tm=3.5).
Prior r = 0.19, 95% CL = 0.13 - 0.29, Based on 3 full stock assessments.
Fishing Vulnerability (Ref.
59153): High vulnerability (60 of 100).
Climate Vulnerability (Ref.
125649): Moderate vulnerability (42 of 100).
