Alosa macedonica Alosa macedonica Alosa macedonica, or the Macedonian shad (also known as "liparia"), is a landlocked species of clupeid fish endemic to Greece. Its single natural occurrence is the freshwater Lake Volvi in northern Greece. It is threatened by habitat loss. "Alosa macedonica" is a member of the "Alosa" genus, whose other species are often anadromous migrating between marine and freshwater. Research suggests that the ancestors of "Alosa macedonica" inhabited marine regions of the Aegean Sea. "Alosa macedonica" have teeth in the palatine and vomer. They have approximately 50 vertebrae and 106-128 gill rakers. They are about 181-230mm in length and
American herring gull American herring gull The American herring gull or Smithsonian gull ("Larus smithsonianus" or "Larus argentatus smithsonianus") is a large gull that breeds in North America, where it is treated by the American Ornithologists' Union as a subspecies of herring gull ("L. argentatus"). Adults are white with gray back and wings, black wingtips with white spots, and pink legs. Immature birds are gray-brown and are darker and more uniform than European herring gulls, with a darker tail. It occurs in a variety of habitats including coasts, lakes, rivers and garbage dumps. Its broad diet includes invertebrates, fish, and many other items.