The extraocular muscles must turn each eye inward; the sphincter muscles must work to make the pupil smaller; and the ciliary muscles must contract to allow the lens to change to a shape that will produce a clearer image. Solution: Focus on a distant object to immediately feel your eyes relax.
Its upper body is blue, the belly is silver, and the fins are yellowish-gray. The common amberjack can reach five to six feet (1.5 to 1.8 m) in length and more than 100 pounds (45 kg) in weight. The average weight, however, is 10 to 15 pounds (4.5 to 6.8 kg).
An average blue crab weighs about 1/3 pound with the edible portion quite low. An experienced crab picker can produce about 2 1/4 ounces of meat from each pound of live blue crabs. This is about a 14% yield. The actual yield depends on the size of the individual crab and experience of the crab picker.