The harvest of said fish in tonnes, however, provided the required high energy to the ?sleepy? fish market at the height of summer. 

In summer, the sea water in the Arabian Gulf and on the Peninsular side of the Arabian Sea gets heated to the maximum level and all small and medium varieties of fish move away to the deeper, cold waters in the sea.

The fish harvest is called chaakara in Malayalam, as this kind of group harvest is only witnessed by the Kerala shores immediately after monsoons and occurs nowhere in the world except in one area in the South American coast.

Chaakara is a Malayalam word used to describe a peculiar marine phenomenon in which a large number of fish and prawns throng together during a particular season as a result of mud bank formations. This rare phenomenon is observed  especially around the coast of Purakkad in Kerala and in South America, where it has proved to be a boon for the local fishermen folk.

A correct scientific explanation about the formation of a chaakara is debatable. 

However, a strongly supported theory is that during the monsoons, the water level of the backwaters rises which facilitates the movement of fine clay particles into the sea through the subterranean channels. 

The accumulation of organic material by this process in relatively calm regions of the sea during the monsoons attracts fish.

These sea conditions are not available in the Fujairah coast and so the phenomenon baffles scientists and fishermen.

It seems that  this thing happens once in every three to five years. 

Unlike Kerala shores, it is very rare in the UAE shores.

It is the richest piscean harvest of the year and the entire fish loving population of the Kerala share the excitement of the fisherfolk. 

Every monsoon (June/July) a crescent-shaped mud bank with apparently no waves, appears in certain places in the 270-km stretch of sea between Kozhikode and Kollam. 

To the fisherman this is his greatest catch. The Chaakara traps great quantities of shrimp and other fish in its muddy waters, which are hauled in with huge nets.

In Fujairah, initially, the fish were sold at Dhs10 per big piece, and as the catch grows in quantity it became Dhs10 for four pieces, and later, supplied for free, a reporter who witnessed the chaakara  said.

The fishes were supplied to other emirates and even to Oman in trucks by a land force that was ready to receive the boats at the beach through mobile communication, he said. 

The fish, though, not very popular among fish connoisseurs, has provided a shot in the arm for the industry, which was enjoying a lull during the summer days.

The unsold fish will be dried and kept for the next season, fishermen said.

 Source :http://www.gulftoday.ae/portal/ad9ad84f-c790-4896-aa2a-69ef39020a0d.aspx