The deep passageways and thin continental shelf leads to unique connections between offshore and inshore waters.
Forage fish thrive in those inshore waters where high productivity results from the upwelling and shoreline run off of nutrients.
The class was designed for patrol and fishery protection tasks in coastal and inshore territorial waters.
Both species live in shallow, inshore waters from 800m to deeper waters (greater than 1000m)
It is adaptable as regards its preferred marine habitat; it can be found in pelagic, offshore and inshore waters.
Thus, its range may now be restricted to shallow, inshore waters in northwestern Borneo.
The channels between groups, however, are 40 to 50 metres deep, and therefore no impediment to the exchange of offshore and inshore waters.
It winters both in offshore and inshore waters, exhibiting some migration.
The species is endemic to northern Australia, inhabiting primarily inshore waters.
The 150N lifejacket is for general use on coastal and inshore waters when sailing and fishing.