Although Ramsgate has the most valuable fish landings in Kent ( £700,000 in 2003), the fishing industry is in decline.

The mean trophic level can then be calculated for fishery catches by averaging trophic levels for the overall catch using the datasets for commercial fish landings.

The fish landings consist of a large variety: pelagic species; 59%, demersal species; 23%, crustaceans and molluscs.

Fish features strongly as nearby Newlyn has the third highest fish landings in England.

In 2010, catches landed at Aberdeenshire's ports accounted for over half the total fish landings of Scotland, and almost 45% in the UK.

A 1987 study concluded that blast fishing was then very widespread in the Philippines, estimating that 25% of all municipal fish landings (equivalent to 250,000 metric tons per year) were from blast fishing.

The harbour is one of the five designated National Fishery Harbours, and has the second highest figure for fish landings after Killybegs.

Ansa-Emmin (1982) found that in 1974, the total fish landings reached 2.68 million tons.

I have no doubt that so-called black fish landings do have a negative impact on statistics.

Similarly, the problems of illegal fishing - black fish landings - have made the situation even worse.