Pycnogonida |
Pantopoda |
Nymphonidae
Environment: milieu / climate zone / গভীরতার পরিসীমা / distribution range
বাস্তুসংস্থান
; গভীরতার পরিসীমা 4 - 1656 m (সূত্র 119523). Boreal; 85°N - 33°N, 180°W - 180°E
Northern Atlantic, Northern Pacific and the Arctic Sea. Temperate to polar.
Length at first maturity / আকৃতি / Weight / Age
পরিপক্কতা : Lm ? range ? - ? cm
Species extremely variable, particularly in appendage length ratios. Chela palm is much longer fingers, tarsus length equals propodus (or is sometimes shorter), ocular tubercle is taller, third palp segment much longer and fifth segment longer than fourth, and major leg segments are measurably longer than in Nymphon brevitarse.
Variation occurs in terminal leg segment length ratios. Tarsus can be slightly shorter than propodus or twice as long as propodus or longer, and sole spines vary in number and length (Ref. 2153, p. 21).
Shelf (Ref. 19). Found at depths of 4 to 1656 m (Ref. 119523).
Life cycle and mating behavior
পরিপক্কতা | প্রজনন | ডিম ছাড়া | Eggs | ডিম্বধারন ক্ষমতা | Larvae
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.
de Kluijver, M.J. and S.S. Ingalsuo 2005 Pycnogonida: Microbenthos of the North Sea. Zoological Museum, University of Amsterdam.http://ip30.eti.uva.nl/bis/pycnogonida.php?menuentry=inleiding[accessed13/01/06]. (সূত্র 256)
IUCN Red List Status
(সূত্র 130435: Version 2025-1)
CITES status (সূত্র 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
হাতিয়ার
আরো তথ্য
ট্রফিক বাস্তুতন্ত্র Food items (preys)
পথ্য উপাদান
খাদ্য গ্রহণ
শিকারী প্রাণী সমূহ
Population dynamicsবৃদ্ধি
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
প্রাচুর্য
Life cycleপ্রজনন পরিপক্কতা ডিম্বধারন ক্ষমতা ডিম ছাড়া EggsEgg developmentLarvae Physiologyঅম্লজান ব্যবহার
Human RelatedStamps, coins, misc.
ইন্টারনেট সুত্র
Estimates based on models
Preferred temperature
(Ref.
115969): 0.4 - 8.1, mean 2.9 (based on 1951 cells).
Price category
Unknown.
