Maybe it only occurred that one year in the early '80s. That gets to the root of the complexities involved. In the North Sea, which has worked to develop elaborate multispecies assessment models, scientists devoted an entire year to researching the question of who eats who. A major move into multispecies management would require a similar effort here. But it isn't that simple.
Species move in and out of the Bay at different times of the year, so diets change seasonally.
And they could change from year to year. The information wouldn't be suitable to use when the forage base is increased in abundance. A single year's data may be insufficient. Compounding the problem is that some important fish species are not managed at all - people have no control over their abundance. Take the tiny bay anchovy, a fish that grows to only a bit longer than 4 inches.