Malacostraca |
Amphipoda |
Pontoporeiidae
Environment: milieu / climate zone / تغييرات عمق / distribution range
بوم شناسي
; تغييرات عمق 1 - 5 m (مرجع 95818). Temperate
Northeast Atlantic: Aland Island, Germany, Estonia and Belgium; Iberian Peninsula.
Length at first maturity / Size / Weight / سن
بلوغ: Lm ?  range ? - ? cmCommon length : 0.51 cm BL (female)
Depth range in the southern Baltic (Ref. 95818). Found in upper parts of the intertidal zone of sheltered beaches, between mean high water springs and mid-tide level; in the retention zone and upper parts of the resurgence zone but not in the saturation zone (Ref. 95808). It is infaunal to sand (Ref. 95819). Grazing on microbenthic flora of sand grains (Ref. 95807). It can cope in areas with high exposure and low salinity (Ref. 95730).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | 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.
مآخذ اصلی
مراجع | هماهنگ كننده | همكاران
Kotta, J. and H. Orav. 2001. (مرجع 95753)
وضعيت در فهرست قرمز IUCN
(مرجع 130435: Version 2024-2)
وضعيت از نظر سايتس (مرجع 108899)
Not Evaluated
Not Evaluated
خطر برای انسان ها
استفاده انسانی
| FishSource |
ابزارها
اطلاعات بيشتر
Population dynamicsرشدMax. ages / sizesLength-weight rel.Length-length rel.نوسانات طولیMass conversionبازسازیفراواني Human RelatedAquaculture profiles
Stamps, coins, misc.
منابع اينترنتي
Estimates based on models
Preferred temperature
(Ref.
115969): 8.9 - 12.4, mean 10.1 (based on 400 cells).
طبقه قيمت
Unknown.