Other estuaries in which the two Portunidae
are abundant in summer months but uncommon in winter are Barnegat Bay, NJ (Milstein et al.
Crabs of the Portunidae
family from the Gulf of California comprise this principle.
Among crabs, dominant taxa were mostly Portunidae
Digestive enzyme spectra in crustacean decapods (Palaeomonidae, Portunidae
and Penaeidae) feeding in the natural habitat.
Grass shrimp 344 2,561 Penaeidae Farfantepenaeus Brown shrimp 41 55 aztecus Litopenaeus White shrimp 170 14 setiferus Portunidae
Callinectes Atlantic blue 60 98 sapidus crab Callinectes Lesser blue 7 7 similis crab Squillidae Squilla sp.
The diet of lancetfish consists of pelagic crustaceans (Hyperiidae, Portunidae
, Amphipoda), cephalopods of the families Onychoteuthidae, some Ommastrephidae (Ornithoteuthis volatilis), Cirroteuthidae, Octopodidae, Argonautidae, Cranchiidae, Histioteuthidae, Bathyteuthidae, and mesopelagic fishes (Sternoptyx diaphana, Paralepis elongata, Omosudis lowei, A.
Swimming crabs of the family Portunidae
are common in coastal habitats in tropical, subtropical, and temperate regions.
Among brachyuran crabs, mating may be restricted to a certain molt stage or life stage, as for some species in the families Portunidae
and Cancridae (Brockerhoff & McLay 2005a, Wolcott et al.