a fish the three-spined stickleback (gasterosteus aculeatus) ichthyology research.

animal fish food invertebrate seafood dish cuisine insect wing meat produce wildlife reptile moth amphibian three-spined stickleback gasterosteus aculeatus background measurement grid ichthyology research shallow water freshwater pond catch fishing fresh marine three spined pisces take russia region male breeding colours eda low plated threespine sea anadromous beauty wild nature aquarium closeup underwater river aquatic lake white small brackish fauna silvery america seawater zoo europe marsh