Malacostraca |
Amphipoda |
Pontoporeiidae
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
Benthic; salmastro; distribuzione batimetrica 10 - 80 m (Fonte Biblio. 67162). Temperate
Northeast Atlantic: Germany, Sweden and Estonia, Baltic Sea.
Lunghezza alla prima maturità / Dimensione / Peso / Età
Maturità: 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).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
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 Variation in the sublittoral macrozoobenthos of the Baltic Sea along environmental gradients: A functional-group approach. Australian Journal of Ecology 24:312-326. (Fonte Biblio. 95752)
Stato della Lista Rossa IUCN
(Fonte Biblio. 130435: Version 2025-2 (Global))
Stato della CITES (Fonte Biblio. 108899)
Not Evaluated
CMS (Fonte Biblio. 116361)
Not Evaluated
Minaccia per l'uomo
Usi umani
| FishSource |
Strumenti
Informazioni ulteriori
Dinamica della popolazione Ciclo di vitaRiproduzioneMaturitàFeconditàDeposizioneUovaSviluppo delle uovaLarve FisiologiaConsumo di ossigeno
Legato all'uomoFrancobolli, monete, materiale vario.
Fonti Internet
Stime basate su modelli
Temperatura preferita
(Ref.
115969): 3.2 - 9.7, mean 6.7 (based on 56 cells).
Categoria di prezzo
Unknown.