इलाज़मौबरांकी (शारक और रेज़) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Atelomycteridae (Coloured catsharks)
Etymology: Schroederichthys: In honor of American ichthyologist William C. Schroeder (1895-1977), Woods Hole Oceanographic Institution, for his pioneering work (with Henry B. Bigelow) on cartilaginous fishes; ichthyos (Gr.), fish. (See ETYFish); saurisqualus: saurus, from sauros (Gr.), lizard; squalus (L.), a sea-fish, usually applied to sharks, from vernacular “lizard catshark,” presumably referring to its slender, lizard-like body and long tail. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
पारिस्थितिकी
समुद्री बाथीड़िमरसल; गहराई सीमा 122 - 435 m (Ref. 56497). Deep-water
Southwest Atlantic: southern Brazil.
आकार / वज़न / Age
Maturity: Lm ? range ? - 69 cm
Max length : 58.2 cm TL पुल्लिंग / अलिंग; (Ref. 56497); 69.2 cm TL (female)
Short description
आकृति विज्ञान | मौरफोमैटरिक्स
Diagnosis: This species is differs from S. tenuis in size at maturity, males 57.8 cm (vs. 42.8) and females 69.2 cm (vs. 37); maximum total length , males 58.8 cm (vs. 46.8) and females 69.2 cm (vs. 42.6); color pattern presence of white spots (vs. none); in having longer interdorsal space, 20.7-22.3% (vs. 17.2-20.6%); longer pelvic-anal space 19.2-20.8% (vs. 14.7-19.4%); dermal denticles morphology, rounded (vs. pointed); and, greater number of vertebrae, 120-123 (vs. 108-113) (Ref. 56497).
Found in deep-reef habitat on the continental slope, generally in depths greater than 250 meters (122-435 m), with deepwater gorgonians, hard corals, tube sponges, crinoids, ophiuroids, and a great number of sympatric scyliorhinid shark Scyliorhinus haeckelii (Ref. 56497). Oviparous (Ref. 50449); with one egg per oviduct laid at a time. Egg capsule grayish olive (fresh) to brownish (fixed), with filamentous superficial texture (Ref. 56497).
Life cycle and mating behavior
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).
Soto, J.M.R., 2001. Schroederichthys saurisqualus sp. nov., (Carcharhiniformes, Scyliorhinidae) a new species of catshark from southern Brazil, with further data on Schroederichthys species. Mare Magnum 1(1):37-50. (Ref. 56497)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
मात्स्यिकी: कोई रुचि बग़ैर
अधिक जानकारी
Age/Sizeबाढ़Length-weightLength-lengthLength-frequenciesमौरफोमैटरिक्सआकृति विज्ञानलार्वालारवल गतिकीभर्तीबहुतायतBRUVS
संदर्भजलीयकृषिजलीयकृषि रूपरेखाखींचआनुवंशिकीElectrophoresesहैरेटिबिलटीबीमारीप्रक्रमणNutrientsMass conversion
सहयोगीयोतस्वीरेStamps, Coins Misc.ध्वनिसिगुयटिरारफ्तारतैरने के प्रकारगिल क्षेत्रOtolithsदिमागदृष्टि
साधन
Special reports
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इंटरनेट स्रोत
Estimates based on models
Preferred temperature (Ref.
123201): 12.2 - 18.1, mean 15.5 °C (based on 15 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic level (Ref.
69278): 3.8 ±0.3 se; based on size and trophs of closest relatives
लौटाव (Ref.
120179): बहुत नीचे, न्यूनतम जनसंख्या दुगनी समय अवलागत 14 महीने। (Fec = 2).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (48 of 100).
