Pycnogonida |
Pantopoda |
Ammotheidae
पर्यावरण: पर्यावरण / जलवायु क्षेत्र / गहराई सीमा / वितरण सीमा
पारिस्थितिकी
Benthic; गहराई सीमा 0 - 70 m (संदर्भ 9). Subtropical
Southwest Pacific: Off Norfolk Island.
प्रथम परिपक्वता पर लंबाई / आकार / वज़न / आयु
परिपक्व अवधि: Lm ? range ? - ? cm Max length : 0.1 cm LS पुल्लिंग / अलिंग; (संदर्भ 9)
Small species with leg span of only about 0.14 cm. Trunk segmented, without large cowls or dorsomedian tubercles at posterior segmentation lines. Lateral processes like the size of their diameters, separated by less than their diameters, armed with 1 - 3 short dorsodistal or dorsal spines. Ocular tubercle low, shorter than basal diameter, eyes large, prominent, darkly pigmented. Abdomen short, blunt, without distal extension or rounded tubercle, not as long as fourth lateral processes, armed with 3 - 4 short distal spines. Proboscis ovoid, longer than trunk width, about half trunk length, without constrictions. Chelifores entirely lacking. Palps 9 segmented, fourth segment longest, longer than second, first and third short, sub equal. Distal 4 short segments carried anaxially on curved fifth segment, hook-shaped, without ventral extensions or tubercles, moderately setose ventrally and distally. Most setae as long as segment diameters. Oviger 10 segmented, third segment shorter than fourth or fifth which are sub equal in length. Sixth segment with many short spines, seventh placed anaxially on sixth, with lateral apophysis bearing 5 - 6 long spines. Eighth, ninth, and tenth segments each smaller than last, armed with small denticulate spines in formula 1: 1: 2, each with many lateral denticles. Legs long and slender, armed with very few short setae or spines except distal segments. Second tibiae the longest segments. Femoral cement gland small, opening a single small dorsodistal pore at about 0.75 femoral length. Tarsus short, without heel spines. Propodi homogenous in anterior posterior members, short, well curved, sole with three major heel spines, one or two slightly smaller proximal heel spines, and 6 - 7 small sole spines. Claw robust, short, well curved distally, auxiliary claws long, about 0.6 main claw length. Female characters unknown (Ref. 9).
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
Harmless
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) |
Low vulnerability (10 of 100). |
मूल्य श्रेणी
(संदर्भ 80766): |
Unknown. |
