Pycnogonida |
Pantopoda |
Pycnogonidae
पर्यावरण: पर्यावरण / जलवायु क्षेत्र / गहराई सीमा / वितरण सीमा
पारिस्थितिकी
Benthic; गहराई सीमा 0 - 1262 m (संदर्भ 2007). Subtropical; 78°N - 30°N, 72°W - 37°E
Northern Atlantic, Arctic Ocean and the Mediterranean.
प्रथम परिपक्वता पर लंबाई / आकार / वज़न / आयु
परिपक्व अवधि: Lm ? range ? - ? cm
Proboscis: Attached relatively large animals such as actinians or sponges. Cuticle (covering the proboscis): May be smooth, partly, or wholly covered with tubercles. Proboscis (tip): Small and buld-like, once inserted in the host tissues they close round it and help to anchor the mouth in position to maintain suction. Mouth at the tip of the proboscis: triadiate structure which usually has three lip-lobes with a number of small tubercles (Ref. 12). Feeding on hosts: hydroid Tealia crassicornis, by suction and rasping of jaws,Lucernaria, Cucumaria frondosa, Metridiumdianthus and Metridium senile (Ref. 233, 229); polyzoans rotting edges of Flustra foliaces (Ref. 234); Milne-Edwardsia loweni, Tealia crassicornis, Lucernaria, Cucumaria frondosa, Metridium dianthus, Metridium senile, and Cynthia. Method of feeding: insertion of proboscis into tissues of the host (Ref. 233, 229). Association with other animals: Clava multicornis, Actinia, Tealia, Metridium,and Alcyonarium digitatum (Ref. 213); polyzoan Flustra foliacea (Ref. 12). Development site of larval associations: Clava multicornis with proboscis inserted (Ref. 213). Reproduction system: ova ripen in the trunk part of the ovary. Life cycle: male rests for a long period on the back of the female with their genital orifices touching. These orifices are situated on the ventral surface of the second coxa of the last pair of legs in the male and on the dorsal aspect of the same leg and segment in the female. When eggs are released they forma single extensive ball in this species with both ovigerous legs embedded in it (Ref. 12).
Epibenthic (Ref. 87524). Littoral (Ref. 1797) from coastal to slope (Ref. 19). Feeding on hosts, i.e., sea cucumbers, tunicates and hydroids and hard corals (Refs. 229, 233, 234) by inserting proboscis into tissues of the host (Refs. 233 and 229). Free-living (Ref. 3123). Prefers anemones Calliactis sp. and Adamsia sp. over Actinia sp. and Tealia sp. as its host. Reported one case where it fed on the holothurian Cucumaria frondosa (Ref. 121217).
जीवन चक्र और संभोग व्यवहार
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | उपजाऊपन | लार्वा
Reproduction system: ova ripen in the trunk part of the ovary. Life cycle: male rests for a long period on the back of the female with their genital orifices touching. These orifices are situated on the ventral surface of the second coxa of the last pair of legs in the male and on the dorsal aspect of the same leg and segment in the female. When eggs are released they form a single extensive ball in this species with both ovigerous legs embedded in it (Ref. 12).
Bamber, R.N. and M.H. Thurston 1995 The deep-water pycnogonids (Arthropoda, Pycnogonida) of the northeastern Atlantic Ocean. Zoological Journal of the Linnean Society. 115:117-162. (संदर्भ 1797)
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
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. |
