Animalia > Arthropoda > Branchiopoda > Diplostraca > Cercopagidae > Bythotrephes > Bythotrephes longimanus

Bythotrephes longimanus (spiny waterflea)

Synonyms: Bythotrephes brigantinus

Wikipedia Abstract

Bythotrephes longimanus (also Bythotrephes cederstroemi), or the spiny water flea, is a planktonic crustacean less than 15 millimetres long. It is native to fresh waters of Northern Europe and Asia, but has been accidentally introduced and widely distributed in the Great Lakes area of North America since the 1980s. Bythotrephes is typified by a long abdominal spine with several barbs which protect it from predators.
View Wikipedia Record: Bythotrephes longimanus

Invasive Species

Bythotrephes longimanus, the spiny water flea, is a predatory cladoceran native to northern Europe and Asia. It was introduced to the North American Great Lakes through ballast water and has since spread to a number of inland lakes. B. longimanus competes directly for prey with juvenile and small fish along with predatory zooplankton. It can foul fishing lines and downrigger cables, and can have substantial impacts on zooplankton community structure.
View ISSG Record: Bythotrephes longimanus


Prey / Diet

Cyclops bicuspidatus (cyclopoid copepod)[1]
Daphnia galeata (waterflea)[1]
Diaptomus sicilis (calanoid copepod)[1]


Alosa pseudoharengus (kyack)[1]
Coregonus albula (European whitefish)[2]
Coregonus clupeaformis (Common whitefish)[1]
Coregonus hoyi (Bloater)[1]
Cottus cognatus (Anadyr sculpin)[1]
Myoxocephalus quadricornis (Alaska fourhorn sculpin)[1]
Oncorhynchus mykiss (redband trout)[1]
Osmerus eperlanus (European smelt)[2]
Osmerus mordax (Rainbow smelt)[1]
Perca flavescens (Yellow perch)[1]
Sander vitreus (Walleye)[1]



Species recognized by Kotov A, Forró L, Korovchinsky NM, PetruseknA, 2013-01-25, FADA Cladocera: World checklist of freshwater Cladocera species in Catalog of Life 2011
Attributes / relations provided by 1NOAA, Great Lakes Environmental Research Laboratory 2Feeding ecology of Coregonus albula and Osmerus eperlanus in the limnetic waters of Lake Mälaren, Sweden, Thomas G. Northcote and Johan Hammar, BOREAL ENVIRONMENT RESEARCH 11: 229–246 (2006)
Invasive Status provided by Global Invasive Species Database Downloaded on 10 May 2011.
Images provided by Google Image Search
Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access