Introduction. Baastrup's sign, also referred to as âkissing spinesâ, is a common disorder of the vertebral column characterized by close approximation and contact of the spinous processes of two adjacent vertebrae, resulting in the formation of a new joint between them (Baastrup, 1936 and Sartoris et al., 1985).. Baastrup's sign, also referred to as âkissing spinesâ, is a common disorder of the vertebral column characterized by close approximation and contact of the spinous processes of two adjacent vertebrae, resulting in the formation of a new joint between them (Baastrup, 1936 and Sartoris et al., 1985).
The most likely theory though is that the name comes from the Old English word for sea-floor shark: hurse. Nurse sharks are slow-moving bottom-dwellers and are, for the most part, harmless to humans. However, they can be hugeâup to 14 feet (4.3 meters)âand have very strong jaws filled with thousands of tiny, serrated teeth, and will bite defensively if stepped on or bothered by divers who assume theyâre docile.
For example, a 35-gallon tank may measure 24 inches long and 12 inches wide. The surface area would be 288 square inches. (24 x 12 = 288). Step 2: Calculate how many inches of angelfish your tank can hold by dividing the surface area by the number 12.sing the example of the above 35-gallon tank: An angelfish needs about 12 square inches of space per fish. Thus an aquarium with a surface area of 288 sq. inches could hold 24 inches worth of angelfish, or 2 angelfish.