Yucatán Channel many of these died. Some recolonisation has since taken place. The Campeche Bank is a biodiverse area and it and other parts of the Yucatán Channel are heavily fished by artisan fishermen who converge on the area from along the coast of Mexico. The area is threatened by over exploitation. Yucatán Channel The Yucatán Channel or Straits of Yucatán (Spanish: "Canal de Yucatán") is a strait between Mexico and Cuba. It connects the Yucatán Basin of the Caribbean Sea with the Gulf of Mexico. It is just over wide and nearly deep at its deepest point near the coast of
Quasi-separated morphism generalization of separated morphisms. All separated morphisms (and all morphisms of Noetherian schemes) are automatically quasi-separated. Quasi-separated morphisms are important for algebraic spaces and algebraic stacks, where many natural morphisms are quasi-separated but not separated. The condition that a morphism is quasi-separated often occurs together with the condition that it is quasi-compact. Quasi-separated morphism In algebraic geometry, a morphism of schemes "f" from "X" to "Y" is called quasi-separated if the diagonal map from "X" to "X"×"X" is quasi-compact (meaning that the inverse image of any quasi-compact open set is quasi compact). A scheme "X" is called quasi-separated if the