Common bleak small shellfish and plant detritus. It is found in streams and lakes. The bleak prefers open waters and is found in large numbers where there is an inflow of food from pumping stations or behind weirs. The bleak spawns near the shore in shallow waters. Some are found in deep water. The substrate is not important. The bleak is an important food source for predatory fish. It is more sensitive to pollution than other cyprinids, which might explain the decline in North-Western Europe. Bleak are used as bait for sport-fishing for larger fish. In 1656 in Paris, a Mr. Jaquin
Crab twisting and pulling off one or both claws and returning the live crab to the water in the belief the crab will survive and regenerate the claws, thereby making it a sustainable industry. Crabs are prepared and eaten as a dish in many different ways all over the world. Some species are eaten whole, including the shell, such as soft-shell crab; with other species, just the claws or legs are eaten. The latter is particularly common for larger crabs, such as the snow crab. In many cultures the roe of the female crab is also eaten, which usually appears orange