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Schoolmaster snapper
The schoolmaster snapper, ''Lutjanus apodus'', is a colorful, subtropical fish found over coral reef areas along the coasts of Florida, the Bahamas, and the Caribbean, though it can range northward along the Atlantic coast of the United States.〔 FishBase.org page on Schoolmaster Snapper〕 Adults are 12-14 in (30-35 cm) long and weigh 1.0-2.0 lb (0.4-0.8 kg), though rare individuals can weigh 8 lb at 24 in long. It has a robust, slightly compressed body, with a pointed head. Its color varies from silvery to bronze. Fins and tails are yellow and the snout contains blue stripes. As the common name suggests, schoolmaster snapper live in groups of dozens of subjects. They keep a short distance from the sea floor at depths between 10 and 90 ft, prefer the cover provided by coral reefs during the day, and expand their range to seagrass beds at night. The schoolmaster snapper is sometimes called the barred snapper or the ''caji''. Like other snapper species, it is a popular food fish.
==Distribution==
The schoolmaster snapper is found in coastal areas of Florida, the Bahamas, and the Caribbean. It lives in shallow, clear, warm, coastal waters over coral reefs, sand with plants, and mud in mangrove areas or other reef-associated bottom types. Juveniles stay over sand bottoms with or without seagrasses, and over muddy bottoms of lagoons or mangrove areas. The young tend to be in littoral (shore) areas, grass plains and from time to time enter briny waters. They may be seen resting in accumulations during the day. The groups of juveniles in shallow coastal waters, as they grow, move into deeper and deeper water. Large schools are often noticed by divers over shallow wrecks and certain coral patches, and this behavior inspired the common name.
Adults usually stay near shore at depths ranging from 0 to 200 ft (2-60 m) and shelter around elkhorn and gorgonian coral. Large adults are sometimes found on the continental shelf. Typical depths are up to 12 ft (4 m).〔(Nocturnal migration patterns of two Caribbean reef fishes, Haemulun sciu and Lutjanus apodus. ) Steven Hitt, Center for Marine and Environmental Studies, University of the Virgin Islands, accessed 20 February, 2012.〕 reported that at night, schoolmaster snapper may increase their range to twice the daytime range, mostly by visiting seagrass beds.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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