Malacostraca |
Amphipoda |
Gammaridae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; djupintervall 0 - 10 m (Ref. 125084). Temperate; 65°N - 43°N, 9°W - 29°E
Northeast Atlantic: from Scotland to Spain, north to Finland and east to Estonia.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ? range ? - ? cmrapporterad maxålder: 1.25 år (Ref. 130135)
Life span is about 15 months (Ref. 130135). This is an omnivore (Ref. 95728) and an epibenthic species (Ref. 95730), that is found on silty sands (Ref. 96329).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Eggs | Fecundity | Larvae
Members of the order Amphipoda are gonochoric and sexually dimoprhic (males larger than females). Mating behavior: Males locate potential partners with the aid of their antenna to detect the pheromones released by the females; the male then rides or carries the female until the latter is ready to molt. When the female is ready, the male pushes the sperm into the marsupium and releases the female afterwards. A few hours later, the female releases her eggs into the marsupium for fertilization. Life cycle: Eggs are brooded in the marsupium. Eggs hatch into juveniles and remain in the marsupium for a few days. Each species undergo 20 molts at most, i.e., 1-year long life cycle.
Harms, J. 1993 Check list of species (algae, invertebrates and vertebrates) found in the vicinity of the island of Helgoland (North Sea, German Bight) - a review of recent records. Helgoländer Meeresunters 47:1-34. (Ref. 2711)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Verktyg
Ytterligare information
Trophic EcologyFood items (preys)
Födosammansättning
Födointag
Predatorer
PhysiologySyreförbrukning
Human RelatedStamps, coins, misc.
Internet-källor
Estimates based on models
Resiliens
Hög, lägsta populationsfördubblingstid mindre än 15 månader (tmax=15 months).
Price category
Unknown.
