Ascidiacea |
Aplousobranchia |
Polyclinidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Sessile; depth range 0 - 285 m (Ref. 1744). Polar
Antarctic.
Length at first maturity / Size / Weight / Age
Maturity: Lm ? range ? - ? cm Max length : 10.0 cm COLD male/unsexed; (Ref. 1753)
The zooids are .4 to .5 cm long.
Minimum depth from Ref. 3435. Found in soft bottoms at depths of 25 to 30 m and on moraine deposits at depths of 20 to 30 m (Ref. 1753), and from depths of 0 to 200 m (Ref. 3435).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Members of the class Ascidiacea are hermaphroditic; both cross- and self-fertilization is typical. Life cycle: Eggs develop into lecithotrophic larva before metamorphosing into benthic adults.
Sanamyan, K.E. and N.P. Sanamyan 2002 Deep-water ascidians from the south-western Atlantic (RV Dmitry Mendeleev, cruise 43 and Academic Kurchatov, cruise 11). Journal of Natural History 36:305-359. (Ref. 1744)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Tools
More information
Trophic EcologyFood items (preys)
Diet composition
Food consumption
Predators
Population dynamicsGrowth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvae PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): -1.8 - -0.8, mean -1.5 (based on 231 cells).
Fishing Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.
