Malacostraca |
Amphipoda |
Pontoporeiidae
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
Benthic; لب شور; تغييرات عمق 10 - 80 m (مرجع 67162). Temperate
Northeast Atlantic: Germany, Sweden and Estonia, Baltic Sea.
طول در اولین بلوغ / اندازه / وزن / سن
بلوغ: 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).
چرخه زندگی و رفتار جفت‌گیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
A semelparous species reproducing in early spring with a life cycle of 1 to 4 years (Ref. 96092).
مآخذ اصلی
مراجع | هماهنگ كننده | همكاران
Bonsdorff, E. and T.H. Pearson 1999 Variation in the sublittoral macrozoobenthos of the Baltic Sea along environmental gradients: A functional-group approach. Australian Journal of Ecology 24:312-326. (مرجع 95752)
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
چرخه زندگیتولید مثلبلوغباروریتخم ریزیتخم هانمو تخمتوزاد ( لارو) مرتبط با انسانتمبر، سکه، متفرقه.
منابع اينترنتي
تخمین‌ها بر اساس مدل‌ها
آسیب‌پذیری ماهیگیری
(مرجع 71543) |
(0 of 100). |
طبقه قيمت
(مرجع 80766): |
Unknown. |
