A fisherman wearing a face mask catches fish on the Berounka river bank as the spread of the coronavirus disease (COVID-19) continues in Beroun, Czech Republic, March 28, 2020. REUTERS/David W Cerny 

A harpoon fisherman is seen on Recreio dos Bandeirantes beach, amid the coronavirus disease (COVID-19) outbreak, in Rio de Janeiro, Brazil March 27, 2020. REUTERS/Sergio Moraes 

A campfire burns on the bank of the River Tay on the opening day of the salmon fishing season near Meikleour, Scotland, Britain January 15, 2020. REUTERS/Russell Cheyne 

A fisherman digs for bait in front of the Liverpool skyline on the beach at New Brighton, Britain November 19, 2019. REUTERS/Phil Noble 

Men fish from the shore in Beirut, Lebanon November 9, 2019. REUTERS/Andres Martinez Casares 

Fishermen's boats are seen during a sunset in Kraljevica, Croatia, October 24, 2019. REUTERS/Antonio Bronic 

A fisherman rows his boat along autumnal trees during a sunny day at the Sylvenstein barrier lake, Germany October 15, 2019. REUTERS/Michael Dalder 

A fisherman rows his boat along autumnal trees during a sunny day at the Sylvenstein barrier lake, Germany October 15, 2019. REUTERS/Michael Dalder 

A fisherman rows his boat along autumnal trees during a sunny day at the Sylvenstein barrier lake, Germany October 15, 2019. REUTERS/Michael Dalder 

Palestinian fishermen repair their net at Al-Shati refugee camp in Gaza City September 16, 2019. Picture taken September 16, 2019. REUTERS/Mohammed Salem TPX IMAGES OF THE DAY 

A fisherman stands in the river on the opening day of the salmon fishing season on the river Tay near Meikleour, Scotland, Britain January 15, 2019. REUTERS/Russell Cheyne TPX IMAGES OF THE DAY 

A fisherman stands in the river on the opening day of the salmon fishing season on the river Tay near Meikleour, Scotland, Britain January 15, 2019. REUTERS/Russell Cheyne TPX IMAGES OF THE DAY 

A fisherman stands in the river on the opening day of the salmon fishing season on the river Tay near Meikleour, Scotland, Britain January 15, 2019. REUTERS/Russell Cheyne 

A fisherman stands in the river on the opening day of the salmon fishing season on the river Tay near Meikleour, Scotland, Britain January 15, 2019. REUTERS/Russell Cheyne 

A fisherman stands in the river on the opening day of the salmon fishing season on the river Tay near Meikleour, Scotland, Britain January 15, 2019. REUTERS/Russell Cheyne 

A fisherman stands in the river on the opening day of the salmon fishing season on the river Tay near Meikleour, Scotland, Britain January 15, 2019. REUTERS/Russell Cheyne 

A fisherman stands in the river on the opening day of the salmon fishing season on the river Tay near Meikleour, Scotland, Britain January 15, 2019. REUTERS/Russell Cheyne 

A fisherman stands in the river on the opening day of the salmon fishing season on the river Tay near Meikleour, Scotland, Britain January 15, 2019. REUTERS/Russell Cheyne 

A fisherman drinks whisky on the opening day of the salmon fishing season on the river Tay near Meikleour, Scotland, Britain January 15, 2019. REUTERS/Russell Cheyne 

A fisherman drinks whisky on the opening day of the salmon fishing season on the river Tay near Meikleour, Scotland, Britain January 15, 2019. REUTERS/Russell Cheyne 

A man fishes under the bridge across Yenisei river with the air temperature at about -31 degrees Celsius during sunset near the hydro electric power station outside Krasnoyarsk, Russia December 24, 2018. REUTERS/Ilya Naymushin 

A fisherman is seen on a bank of the Yenisei River at sunset near the Krasnoyarsk hydro electric power station, with the air temperature at about minus 32 degrees Celsius (minus 25.6 degrees Fahrenheit), outside Krasnoyarsk, Russia January 26, 2018. REUTERS/Ilya Naymushin SEARCH "POY GLOBAL" FOR FOR THIS STORY. SEARCH "REUTERS POY" FOR ALL BEST OF 2018 PACKAGES. TPX IMAGES OF THE DAY. 

Fisherman are seen on the Paraguay River on the outskirts of Asuncion city in Paraguay, October 29, 2018. Picture taken October 29, 2018. REUTERS/Jorge Adorno 

A fisherman poses for a picture on the Paraguay River on the outskirts of Asuncion city in Paraguay, October 29, 2018. Picture taken October 29, 2018. REUTERS/Jorge Adorno 

A fisherman stands at the shore of Lake Sylvensteinspeicher near Lenggries, Germany, October 21, 2018. REUTERS/Andreas Gebert 

A fisherman stands at the shore of Lake Sylvensteinspeicher near Lenggries, Germany, October 21, 2018. REUTERS/Andreas Gebert 

A fisherman's boat floats on the Yenisei River near the Siberian town of Divnogorsk, Russia September 20, 2018. REUTERS/Ilya Naymushin 

A man stands on an embankment of the Yenisei River in the Siberian town of Divnogorsk, Russia September 20, 2018. REUTERS/Ilya Naymushin 

A worker recovers net in a fish pen before Super Typhoon Mangkhut hits the main island of Luzon, in Muntinlupa, Metro Manila, in Philippines, September 13, 2018. REUTERS/Erik De Castro 

A fisherman stands on rocks along the Mediterranean Sea near Dor Beach, northern Israel August 28, 2018. Picture taken August 28, 2018. REUTERS/Amir Cohen 

A man fishes in the rain on a river in Ballyforan, Ireland, August 26, 2018. REUTERS/Dylan Martinez 

A fisherman stands in the waters of the Yenisei River in the Siberian city of Krasnoyarsk, Russia June 15, 2018. REUTERS/Ilya Naymushin TPX IMAGES OF THE DAY 

A man is seen fishing during the sunset in Senj, Croatia, June 15, 2018. REUTERS/Antonio Bronic 

A fisherman stands in the waters of the Yenisei River in the Siberian city of Krasnoyarsk, Russia June 15, 2018. REUTERS/Ilya Naymushin 

A man fishes on the beach of the Promenade des Anglais in Nice, France, March 30, 2018. REUTERS/Eric Gaillard 

People are seen fishing ar the seaside during sunset in Beirut, Lebanon February 15, 2018. REUTERS/Jamal Saidi 

A fisherman rows his canoe as he inspects a fish cage at Laguna de Bay in Muntinlupa, Metro Manila, Philippines February 11, 2018. REUTERS/Erik De Castro 

A resident uses a net to fish at Laguna de Bay in Muntinlupa, Metro Manila, Philippines February 11, 2018. REUTERS/Erik De Castro 

Fishermen walk on the shore of the Tisma lagoon wetland park in Masaya, Nicaragua, February 2, 2018. REUTERS/Oswaldo Rivas 

A fisherman is seen on a bank of the Yenisei River at sunset near the Krasnoyarsk hydro electric power station, with the air temperature at about minus 32 degrees Celsius (minus 25.6 degrees Fahrenheit), outside Krasnoyarsk, Russia January 26, 2018. REUTERS/Ilya Naymushin TPX IMAGES OF THE DAY 

A fisherman is seen on a bank of the Yenisei River at sunset near the Krasnoyarsk hydro electric power station, with the air temperature at about minus 32 degrees Celsius (minus 25.6 degrees Fahrenheit), outside Krasnoyarsk, Russia January 26, 2018. REUTERS/Ilya Naymushin 

A fisherman is seen on a bank of the Yenisei River at sunset near the Krasnoyarsk hydro electric power station, with the air temperature at about minus 32 degrees Celsius (minus 25.6 degrees Fahrenheit), outside Krasnoyarsk, Russia January 26, 2018. REUTERS/Ilya Naymushin 

A fisherman and his wife catch fish in the waters of Vembanad Lake in Kochi, India, January 24, 2018. REUTERS/Sivaram V TPX IMAGES OF THE DAY 

A fisherman and his wife catch fish in the waters of Vembanad Lake in Kochi, India, January 24, 2018. REUTERS/Sivaram V 

Palestinian fishermen warm themselves by a fire at a beach on a winter day, in the northern Gaza Strip January 21, 2018. REUTERS/Mohammed Salem TPX IMAGES OF THE DAY 

Palestinian fishermen warm themselves by a fire at a beach on a winter day, in the northern Gaza Strip January 21, 2018. REUTERS/Mohammed Salem 

A fisherman casts his net before sunset in Baseco district, metro Manila, Philippines, January 20, 2018. REUTERS/Dondi Tawatao 

An angler casts his line on the opening day of the salmon fishing season on the River Tay at Kenmore in Scotland, Britain January 15, 2018. REUTERS/Russell Cheyne 

An aerial view shows men fishing on thin ice covering the Yenisei River, with the air temperature at about minus 25 degrees Celsius (minus 13 degrees Fahrenheit), outside Krasnoyarsk, Russia January 2, 2018. REUTERS/Ilya Naymushin TPX IMAGES OF THE DAY 

A fisherman sails to his net early morning on Lake Leman in Lausanne, Switzerland December 5, 2017. REUTERS/Denis Balibouse TPX IMAGES OF THE DAY 

A man is seen fishing at sunset in Lavey Lough near Cavan, Ireland, November 12, 2017. REUTERS/Clodagh Kilcoyne 

A fisherman stands in the Stviga River near the village of Pogost, Belarus August 16, 2017. REUTERS/Vasily Fedosenko 

A fisherman stands in the Correze River as he fishes in Tulle, France, May 6, 2017. REUTERS/Regis Duvignau 

Fisherman Cengiz Topcu, 57, who says he will vote 'No' in the referendum, poses in his boat in Rize on the Black Sea coast, Turkey, April 5, 2017. "I am a patriot. In the past Erdogan was a good man but recently he has changed in a bad way. I want a democracy, not the rule of one man. Systems ruled by one person lead to military coups," Topcu said. He thought that Turkey's biggest problems are unemployment and terror. He is also concerned about the environment, "In the past, there were lots fish in the Black Sea, but now it is polluted. The chemicals from the factories along the rivers pollute the rivers and these rivers carry the poison to the sea. There are no more fish around." REUTERS/Umit Bektas SEARCH "VOXPOPS UMIT" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY?? 

A man fishes off rocks at dusk as the moon rises in Koh Samui, Thailand April 10, 2017. REUTERS/Toby Melville

A man is seen fishing on a frozen lake at the Pajulahti sports center near Lahti, Finland, February 24, 2017. REUTERS/Kai Pfaffenbach 

A man is seen fishing on a frozen lake at the Pajulahti sports center near Lahti, Finland, February 24, 2017. REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY 

A man fishes near the Monk Rock on the Yenisei River on a frosty winter day outside Krasnoyarsk, Russia, January 12, 2017. REUTERS/Ilya Naymushin 

A man watches a fisherman standing aboard his boat as it floats on Deep Water Bay at sunset on Hong Kong Island, China, December 9, 2016. Picture taken December 9, 2016. REUTERS/David Gray 

A fisherman carries his fishing rod as he walks along Bronte Beach at sunset in Sydney, Australia, July 11, 2016. REUTERS/David Gray