Matlayahualoyan
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Matlayahualoyan (lit. "Place where fish are encircled with nets") is a ocean bank off the east coast of Zacapican consisting of a series of seamounts, tablemounts and other submerged geological formations on the Oxidental continental shelf. It is a rich and economically significant fishing ground supporting sardine, anchovy, herring as well as tuna and several species of billfish such as swordfish and sailfish among others. The wealth of this fishery is due to its geology and location, as the cold Cecatoya current (also known as the South Thalassan current), an offshoot of the Austral Circumpolar current meets the shallow waters and steep landforms of the Matlayahualoyan oceanic region, lifting nutrient rich water up from the deep ocean where it mingles with the warm West Course current which flows along the western Thalassan ocean south from the Equator. These conditions create an ideal breeding ground for many species of pelagic fish, and are also responsible for the notoriously foggy weather patterns of the region.