Black crappie consequences both for the crappie and for other fish species. A commercial supplier of the fish, however, claims that it can be safely stocked in ponds as small as in area. Crappies feed early in the morning and from about midnight until approximately 2 am. Individuals smaller than about 16 cm in length eat plankton and minuscule crustaceans, while larger individuals feed on small fish (like shad), as well as minnows. Adult black crappie feed on fewer fish than white crappie do; instead they consume a larger volume of insects and crustaceans. According to scientific studies carried out in California,
What Is a Nation? and continues to be invoked. Political historian Karl Deutsch, in a quote sometimes mistakenly attributed to Renan, said that a nation is "a group of people united by a mistaken view about the past and a hatred of their neighbours". Benedict Anderson's 1983 work Imagined Communities, which states that a nation is an "imagined political community", argues that Renan contradicts himself when he says French people must have forgotten the St. Bartholomew's Day massacre, yet does not explain what it is. In other words, Renan assumes that all his readers will remember the very massacre he says they have forgotten.