The phrase "quantity of fish" is correct and can be used in written English.
You can use it when referring to a specific amount of fish, such as "The quantity of fish in the lake has been decreasing steadily over the last decade."
The largest quantity of fish comes from the Danube River, and most of the annual catch is consumed fresh.
The hauls landed, buyers come to negotiate, dressed in bleached white lungis (sarongs) and starched dress shirts, using tiny hand movements to indicate the price they offer and quantity of fish required.
Ostend, Belgium Fresh fish constitutes feline heaven, and there is no need for the cat lover to venture further than this fine old town and Belgium's leading port, in terms of the quantity of fish landed.
They decide what sort of fishing gear may be used, set limits on the quantity of fish that can be caught and how many ships are allowed in an area, and so on.Here, too, there have been successes.
Those and subsequent findings suggest that those early people, like Cambodians today, were of slight to medium build, constructed their houses on wooden piles, consumed a considerable quantity of fish, and raised pigs and water buffalo.
And they have learned how to handle diseases better, reducing the quantity of fish that ends up being unsellable.As a result of all these improvements, the global production of farmed fish, measured in tonnes, now exceeds the production of beef (see chart).
Farmed fish consume huge quantities of fish oils either directly or in fish meal.
Banten also produces significant quantities of fish from aquaculture and open-sea capture.
Increasing numbers of physicians are reporting on signs of mercury poisoning among patients who eat large quantities of fish.
On an annual cycle, the factory assimilates these raw materials and then pumps out vast quantities of fish.
Substantial quantities of fish are caught annually in the lagoons and rivers, while coastal fishing produces a smaller, but growing, amount.
