Pycnogonida |
Pantopoda |
Nymphonidae
पर्यावरण: पर्यावरण / जलवायु क्षेत्र / गहराई सीमा / वितरण सीमा
पारिस्थितिकी
Benthic; गहराई सीमा 0 - 4136 m (संदर्भ 1680). Polar
Southeast Pacific, Western Atlantic, and Antarctic.
प्रथम परिपक्वता पर लंबाई / आकार / वज़न / आयु
परिपक्व अवधि: Lm ? range ? - ? cm
Leg span: 2 - 3 cm, a tall ocular tubercle with prominent eyes, and closely crowded lateral processes which usually, along with the trunk, have long dorsal spines. Spines are also carried on the chelifore scape and in rows along the leg. It has a short neck, crowded with a bulbous oviger base on each side. The male ovigers have distally inflated fifth and sixth segments which are often collapsed. The tarsus, with strong distal spines, is usually as long as or longer than the propodus which has a short main claw and vestigial or missing auxiliary claws. A wide range of variations occur among the many specimens of this species. This is attested to by its several synonyms. This is the genotype of a group of 20 predominantly Antarctic species which belong to a discrete assemblage called the australe group (Ref. 156). It shares the diagnostic characters enumerated above with the others and forms one of the groups into which this cumbersome genus must be divided if any sense is to be made of trying to separate its multitude of species (Ref. 9).
Maximum depth from Ref. 87394. Found to have hydroid colonies grasped in its chelifores (Ref. 121217).
जीवन चक्र और संभोग व्यवहार
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | उपजाऊपन | लार्वा
Members of the class Pycnogonida are gonochoric and sexually dimorphic. During copulation, male usually suspends itself beneath the female. Fertilization occurs as the eggs leave the female's ovigers. Males brood the egg masses until they hatch. Life cycle: Eggs hatch into protonymphon larva then to adults.
Child, C.A. 1998 The marine fauna of New Zealand: Pycnogonida (sea spiders). NIWA Biodiversity Memoire 109. National Institute of Water and Atmospheric Research (NIWA). Washington, D.C. 20530, USA. 71 p. + Figure 2A-G, 3A-F, 4, 5. (संदर्भ 9)
आईयूसीएन रेड लिस्ट स्थिति
(संदर्भ 130435: Version 2025-2 (Global))
CITES स्थिति (संदर्भ 108899)
Not Evaluated
CMS (संदर्भ 116361)
Not Evaluated
मनुष्यों के लिए ख़तरा
मानव उपयोग
FAO - Publication: search | FishSource |
साधन
अधिक जानकारी
ट्रॉफिक पारिस्थितिकीखाद्य पदार्थ (शिकार)
संघटक आहार
आहार खपत
परभक्षी
जनसंख्या गतिशीलताबाढ़
अधिकतम आयु/आकार
लंबाई-वजन संबंध
लंबाई-लंबाई संबंध
लंबाई-आवृत्तियाँ
सामूहिक रूपांतरण
बहुतायत
जीवन चक्रपुनरुत्पत्तिपरिपक्व अवधिउपजाऊपनमछलीऔ का अंडे देनाअंडेअंडे का विकासलार्वा फिजियोलॉजीप्राणवायु की खपत
मानव संबंधीटिकट, सिक्के, विविध.
इंटरनेट स्रोत
मॉडल पर आधारित अनुमान
मछली पकड़ने की भेद्यता
(संदर्भ 71543) |
(0 of 100). |
मूल्य श्रेणी
(संदर्भ 80766): |
Unknown. |
