Strongest bite measured in fish

The strongest fish bite ever measured is 5,300 N - the equivalent to a downward force of approximately 540 kg (1,200 lb) and belonged to the prehistoric Dunkleosteus terrelli, an armoured fish which lived between 360 – 415 million years ago and grew to lengths of up to 10 m (33 ft). When measured at the tip of the tooth alone, the bite force was 147 million N/m² (21,290 lb/in²) - only Tyrannosaurus rex and alligator bites are higher! Based on jaw fossils, scientists Philip S.L. Anderson and Mark W. Westneat (both USA) of the University of Chicago, and the Field Museum of Natural History, Chicago, USA (respectively) created a computer-generated model of D. terrelli's skull, and published their measurements online in Biology Letters on 28 November 2006. NB word on Newton measurement from Mr Westneat:
"Dunkleosteus maximal bite force is about 5300 Newtons (the Newton is the standard unit of force). One newton in full units is one Kg meters per second squared (kg*m/s2). You should note that Kg or Lbs are not correct force measures- they are weights, which are the acceleration of a mass downward by gravity. But you can translate the force of 5300N into how much weight would give the same force on Earth, and 5300N is the same force downward caused by weights of 540 kg or about 1200 lbs."