Many countries do not compel fishermen to report the accidental capture of small cetaceans in their nets, so significant catches may go unnoticed for years.

However, recently local fishermen reported increasing spells of dolphin absence which scientist believe might be connected to disturbance from these largely unregulated activities.

Though no studies have been completed, fishermen have reported a drastic drop-off in their catch.

Since then, fishermen have occasionally reported seeing what looked like blue pike in smaller lakes in Canada and elsewhere.

Local fishermen reported seeing the aircraft burst into flames before plunging into the ocean.

Local fishermen have reported seeing steam rising from the fjord.

In 1991, commercial fishermen on the Hudson reported a shad catch of 301,578 pounds.

Several fisherman have reported tangling their nets on submerged rigs.

Japanese fishermen have also reported declines in recent years, while off China the numbers of all fish species are diminishing due to over-exploitation and habitat degradation.

It was apparently introduced to the island in the 1920s, as early fishermen reported seeing it between 1928 and 1930.