8 results for Alosa aestivalis (Blueback Herring)

Impact ID Scientific Name Impact Type Study Type Study Location Impact Description Geographic Location Reference
2721 Alosa aestivalis Competition Anecdotal Field If blueback herring became established throughout Lake Ontario and/or spread to other Great Lakes it could impede recovery of depressed populations of native fishes such as cisco and lake trout. Oneda-Oswago River, USA 14488
2723 Alosa aestivalis Competition Anecdotal N/A Blueback herring are believed to have the potential to displace rainbow smelt and other native forage fish. 18753
2794 Alosa aestivalis Competition Anecdotal Field Blueback Herring in a South Carolina reservoir ate mostly zooplankton, including Bosmina sp. (13-78% of biomass), and Cyclapoid Copepods (12-78%). Blueback Herring diets differed significantly from diets of Threadfin Shad, which consumed proportionately more Bosmina sp. and rotifers; however, if food resources are limited there could be competition between these species. 14491
2795 Alosa aestivalis Competition Observational Field Blueback Herring (Alosa aestivalis) compete for food with Alewife in the Great lakes. 14488
2799 Alosa aestivalis Competition Anecdotal Field Blueback Herring in South Carolina reservoirs probably compete for food resources with other planktivores and juvenile fishes such as Black Crappie. 26640
2802 Alosa aestivalis Competition Observational Field In a South Carolina reservoir, Blueback Herring consumed some juvenile fishes (Clupeid and Centrarchid), but mainly selectively consumed larger zooplankton such as Holopedium amazonicum, Mesocyclops edax, Bosmina longirostris, and Leptodora kindtii. Threadfin Shad diets were dominated by smaller zooplankton including Bosmina longirostris and Rotifera, with relatively little overlap with Blueback Herring. 24389
2806 Alosa aestivalis Competition Observational Field There was high dietary overlap in zooplankton prey between both juvenile and adult Blueback Herring in Lewis Smith Lake, AL, with adult Threadfin Shad and larval Lepomis spp. 33786
2808 Alosa aestivalis Competition Observational Field In Nova Scotia, small Blueback Herring diets comprised 48% benthic prey, large Blueback Herring diets 81% benthic prey, and both small and large Alewife diets between 85-88% benthic prey, with a higher proportion of detritus than Blueback Herring. 1897

Currently showing impact type "Competition".

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