| ملاحظات |
Visual size-selective plankton feeder (Ref. 89567) Has the ability to switch between particulate- and filter-feeding (Ref. 4809). Adult feed on planktonic crustaceans, mollusc larvae, arrow worms, ctenophores, small fish (incl. eggs and larvae) (Ref. 188). Preyed upon by fish, birds, and marine mammals (Ref. 89563). Parasites found are protozoans, myxosporidians, trematodes, cestodes, nematodes and copepods (Refs. 5951, 37032). Herring biomass has shown inverse correlation with the biomass of sprat, a competitor for planktonic food (Refs. 82765; 82766). |