Malacostraca |
Amphipoda |
Pontoporeiidae
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
Benthic; تغييرات عمق 1 - 5 m (مرجع 95818). Temperate
Northeast Atlantic: Aland Island, Germany, Estonia and Belgium; Iberian Peninsula.
طول در اولین بلوغ / اندازه / وزن / 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).
چرخه زندگی و رفتار جفت‌گیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
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 Role of benthic macroalgae in regulating macrozoobenthic assemblages in the Vainameri (north-eastern Baltic Sea). Ann. Zool. Fennici 38:163-171. (مرجع 95753)
وضعيت در فهرست قرمز IUCN
(مرجع 130435: Version 2025-2 (Global))
وضعيت از نظر سايتس (مرجع 108899)
Not Evaluated
Not Evaluated
خطر برای انسان ها
استفاده انسانی
FAO - Publication: search | FishSource |
ابزارها
اطلاعات بيشتر
پویایی جمعیترشدحداکثر سن/اندازهنسبت طول-وزن.طول-طول نسبی.نوسانات طولیتبدیل انبوهفراواني مرتبط با انسانتمبر، سکه، متفرقه.
منابع اينترنتي
تخمین‌ها بر اساس مدل‌ها
آسیب‌پذیری ماهیگیری
(مرجع 71543) |
(0 of 100). |
طبقه قيمت
(مرجع 80766): |
Unknown. |
