Malacostraca |
Amphipoda |
Pontoporeiidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Benthic; brackish; depth range 10 - 80 m (Ref. 67162). Temperate
Northeast Atlantic: Germany, Sweden and Estonia, Baltic Sea.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Depth range in the Baltic Sea (Ref. 67162). In the Baltic Sea, inhabits brackish waters (Ref. 95752). In the German Baltic Sea, found at depths over 35 meters, mainly on muddy areas characterized by icy temperatures and salinity of 15 to 20 psu (Ref. 95730). An infaunal species in sandy substrates in localities around the Åland Islands and in SW Finland in the northern Baltic Sea (Ref. 95819). Mainly occurs in the top 5 cm of the sediment and feeds rapidly (Ref. 90432). A mobile, surface detritivore (Ref. 95752). Are active nocturnal swimmers. Growth periods linked to spring phytoplankton blooms. Semelparous, with lifecycles lasting from 1 to 3 years in the northern Baltic proper. Eggs hatch in March-April. Sexual maturity is attained in 6 to 7 months (autumn). Males then undergo metamorphosis to adapt to pelagic life during which they do not feed, mate with females along the water column and then eventually die. The females, on the other hand, die after releasing their young the following spring (Ref. 90432).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
A semelparous species reproducing in early spring with a life cycle of 1 to 4 years (Ref. 96092).
Bonsdorff, E. and T.H. Pearson. 1999. (Ref. 95752)
IUCN Red List Status
(Ref. 130435: Version 2024-2)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Tools
More information
Trophic EcologyFood itemsDiet compositionFood consumptionFood rationsPredators Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvaeLarval dynamics Human RelatedAquaculture profiles
Stamps, coins, misc.
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): 3.2 - 9.7, mean 6.7 (based on 56 cells).
Price category
Unknown.