Classification / Names
Common names from other countries
Main reference
आकार / वज़न / Age
Max length : 234 cm TL पुल्लिंग / अलिंग; (Ref. 26340); common length : 100.0 cm TL पुल्लिंग / अलिंग; (Ref. 26999); अधिकतम प्रकाशित वज़न: 5.0 kg (Ref. ); अधिकतम सूचित उम्र: 15 वर्षो (Ref. 7142)
Length at first maturity
Lm 46.3, range 30 - 99 cm
पर्यावरण
; समुद्री; खारा बेनथोपिलाजिक; ऐम्फिढरोमस (Ref. 51243); गहराई सीमा 0 - 589 m (Ref. 58018), usually 100 - 350 m (Ref. 35388)
जलवायु / सीमा
Subtropical, preferred 26°C (Ref. 107945); 49°N - 54°S, 114°W - 180°E (Ref. 54931)
वितरण
Circumtropical and temperate waters of the world. Trichiurus japonicus which was originally described from Japan as Trichiurus lepturus japonicus was synonymized with Trichiurus lepturus. Another nominal species synonymized with Trichiurus lepturus is Trichiurus nitens from the eastern Pacific Ocean (California to Peru).
देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | भूमिका
Short description
पृष्ठीय रीढ़ (सम्पूर्ण): 3; पृष्ठीय सौफट रेज़ (सम्पूर्ण): 130-135; ऐनल सौफट रेज़: 100 - 105. Body extremely elongate, compressed and tapering to a point. Mouth large with a dermal process at the tip of each jaw. Dorsal fin relatively high; anal fin reduced to minute spinules usually embedded in the skin or slightly breaking through; anterior margin of pectoral fin spine not serrated. Pelvic and caudal fins absent. Lateral line beginning at the upper margin of the gill cover, running oblique to behind the tip of the pectoral fins, then straight close to the ventral contour. Fresh specimens steely blue with silvery reflections, becoming uniformly silvery gray sometime after death (Ref. 6181).
IUCN Red List Status (Ref. 115185)
Threat to humans
Harmless
Human uses
मात्स्यिकी: उच्च वाणिज्य; आखेट मत्स्य: हां
साधन
Special reports
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इंटरनेट स्रोत
Estimates of some properties based on models
Phylogenetic diversity index
PD50 = 0.5020 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)
Trophic Level
4.4 ±0.4 se; Based on diet studies.
लौटाव
माध्यम, न्यूनतम जनसंख्या दुगनी होने का समय 1.4 - 4.4 वर्ष। (K=0.25-0.29; tm=2; tmax=15)
Vulnerability
Moderate to high vulnerability (51 of 100)
Price category