Dead fish are seen in the water near "Cala del Pino" beach in Murcia's Mar Menor lagoon, Spain August 20, 2021. REUTERS/Eva Manez

Tourists watch as a municipal worker collects dead fish and crustaceans on the shore of "Cala del Pino" beach in Murcia's Mar Menor lagoon, Spain August 20, 2021. REUTERS/Eva Manez

Dead fish are seen in the water near "Cala del Pino" beach in Murcia's Mar Menor lagoon, Spain August 20, 2021. REUTERS/Eva Manez

Dead fish and crustaceans lay on the shore of "Cala del Pino" beach in Murcia's Mar Menor lagoon, Spain August 20, 2021. REUTERS/Eva Manez

Dead fish are seen in the water near "Cala del Pino" beach in Murcia's Mar Menor lagoon, Spain August 20, 2021. REUTERS/Eva Manez

Dead fish and crustaceans collected by municipal workers on the shore of "Cala del Pino" beach are seen in a bucket, in Murcia's Mar Menor lagoon, Spain August 20, 2021. REUTERS/Eva Manez

Dead fish are seen in the water near "Cala del Pino" beach in Murcia's Mar Menor lagoon, Spain August 20, 2021. REUTERS/Eva Manez

Municipal workers collect dead fish and crustaceans on the shore of "Cala del Pino" beach in Murcia's Mar Menor lagoon, Spain August 20, 2021. REUTERS/Eva Manez

Dead fish and crustaceans lay on the shore of "Cala del Pino" beach in Murcia's Mar Menor lagoon, Spain August 20, 2021. REUTERS/Eva Manez

Municipal workers collect dead fish and crustaceans on the shore of "Cala del Pino" beach in Murcia's Mar Menor lagoon, Spain August 20, 2021. REUTERS/Eva Manez

Municipal workers collect dead fish and crustaceans on the shore of "Cala del Pino" beach in Murcia's Mar Menor lagoon, Spain August 20, 2021. REUTERS/Eva Manez

Tourists watch as municipal workers collect dead fish and crustaceans on the shore of "Cala del Pino" beach in Murcia's Mar Menor lagoon, Spain August 20, 2021. REUTERS/Eva Manez

Flasks containing lab-grown shrimp meat cells suspended in nutrient solution are seen in an incubator in start-up Shiok Meats, first company globally to be growing crustacean meat in the lab, in Singapore January 22, 2020. Picture taken January 22, 2020. REUTERS/Travis Teo

Crabs are seen at the fish market in Washington, U.S., November 17, 2019. REUTERS/Yara Nardi

A view of tropical fish and crabs in plastic bags on display for sale in Hong Kong, China, October 25, 2019. REUTERS/Umit Bektas

A view of tropical fish and crabs in plastic bags on display for sale in Hong Kong, China, October 25, 2019. REUTERS/Umit Bektas

A volunteer diver of the environmental group Aegean Rebreath holds a small crustacean as the team cleans the bottom of the sea from ghost nets, off the island of Salamina, Greece, June 30, 2019. Picture taken June 30, 2019. REUTERS/Stelios Misinas

Shrimps are seen in fish street vendor Otello's van in Castell'Azzara, Italy October 31, 2018. REUTERS/Max Rossi

Sea squirts, an invasive marine invertebrate, cling to lobster traps in Stonington, Maine, U.S., November 14, 2017. Picture taken November 14, 2017. To match Special Report OCEANS-TIDE/LOBSTER REUTERS/Shannon Stapleton

Lobsters are seen in a crate after being brought in by a lobsterman in Stonington, Maine, U.S., July 5, 2017. Picture taken July 5, 2017. To match Special Report OCEANS-TIDE/LOBSTER REUTERS/Shannon Stapleton

A cooked Canadian lobster is displayed for customers at St. Lawrence Market South in Toronto, Ontario, Canada September 27, 2018. REUTERS/Chris Helgren

A calico crayfish (Orconectes immunis) is pictured in Rheinstetten, Germany, August 9, 2018. REUTERS/Ralph Orlowski

A calico crayfish (Orconectes immunis) is pictured in Rheinstetten, Germany, August 9, 2018. REUTERS/Ralph Orlowski

Calico crayfish (Orconectes immunis) are pictured in Rheinstetten, Germany, August 9, 2018. REUTERS/Ralph Orlowski

Shrimps are seen in a basket after shrimp fishing during low tide at the coastal town of Oostduinkerke, Belgium August 2, 2018. REUTERS/Yves Herman

Shrimps are seen in a basket after shrimp fishing during low tide at the coastal town of Oostduinkerke, Belgium August 2, 2018. REUTERS/Yves Herman

A waiter delivers a lunch of lobster, that was imported from Boston, U.S., at a sea food restaurant in Beijing, China July 5, 2018. Picture taken July 5, 2018. REUTERS/Jason Lee

The head of a cooked lobster, that was imported from Boston, U.S., is seen in a microwave at the kitchen of a sea food restaurant in Beijing, China July 5, 2018. Picture taken July 5, 2018. REUTERS/Jason Lee

A cook prepares to make the lunch of lobsters imported from Boston, U.S. at the kitchen of a sea food restaurant in Beijing, China July 5, 2018. Picture taken July 5, 2018. REUTERS/Jason Lee

Lobsters that were imported from the U.S. are seen in a tank at a seafood retailer at a fish market in Beijing, China, June 27, 2018. Picture taken June 27, 2018. REUTERS/Thomas Peter

North American crayfish (Procambarus clarkii) fished from little lakes at Berlin's Britzer Garten by authorised fishermen are pictured in Berlin, Germany, May 11, 2018. REUTERS/Fabrizio Bensch

North American crayfish (Procambarus clarkii) fished from Berlin's city centre Tiergarten Park are on display at a market stall of covered market 'Markthalle Neun' in Berlin, Germany, May 11, 2018. REUTERS/Fabrizio Bensch

A vendor holds a fried scorpion as she prepares for sale in Kampong Cham province, Cambodia March 16, 2018. REUTERS/Samrang Pring

Bangladeshi trader Kuillah Miah, 60, weighs shrimp at a stall in Palong Khali refugee camp near Cox's Bazar, Bangladesh, November 4, 2017. "I started my trading here two days ago, I just sell shrimp and it is 100 taka for 250g," Miah said. "Yesterday I sold all my shrimp in a short time and today it will also all sell quickly." The price of shrimp in Palong Khali refugee camp is 100 taka per 250g. The price in Palong Khali Bazar is 80 taka per 250g. REUTERS/Hannah McKay SEARCH "MCKAY TRADERS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Dogs dressed as crustaceans take part in the annual halloween dog parade at Manhattan's Tompkins Square Park in New York U.S., October 21, 2017. REUTERS/Lucas Jackson

Crabs coming from the surrounding forests gather near the sea to spawn in Playa Giron, Cuba, April 21, 2017. Picture taken on April 21, 2017. REUTERS/Alexandre Meneghini

Crabs coming from the surrounding forests cross a highway on their way to spawn in the sea in Playa Giron, Cuba, April 21, 2017. Picture taken on April 21, 2017. REUTERS/Alexandre Meneghini

Crabs coming from the surrounding forests climb a food hut on their way to spawn in the sea in Playa Giron, Cuba, April 21, 2017. Picture taken on April 21, 2017. REUTERS/Alexandre Meneghini

Crabs coming from the surrounding forests gather near the sea to spawn in Playa Giron, Cuba, April 21, 2017. Picture taken on April 21, 2017. REUTERS/Alexandre Meneghini

Crabs coming from the surrounding forests cross a highway on their way to spawn in the sea in Playa Giron, Cuba, April 20, 2017. Picture taken on April 20, 2017. REUTERS/Alexandre Meneghini

Crabs coming from the surrounding forests gather near the sea to spawn in Playa Giron, Cuba, April 21, 2017. Picture taken on April 21, 2017. REUTERS/Alexandre Meneghini

Crabs coming from the surrounding forests gather near the sea to spawn in Playa Giron, Cuba, April 21, 2017. Picture taken on April 21, 2017. REUTERS/Alexandre Meneghini

Crabs coming from the surrounding forests cross a highway on their way to spawn in the sea in Playa Giron, Cuba, April 21, 2017. Picture taken on April 21, 2017. REUTERS/Alexandre Meneghini TPX IMAGES OF THE DAY

Crabs coming from the surrounding forests spawn in the sea in Playa Giron, Cuba, April 21, 2017. Picture taken on April 21, 2017. REUTERS/Alexandre Meneghini

Crabs coming from the surrounding forests spawn in the sea in Playa Giron, Cuba, April 21, 2017. Picture taken on April 21, 2017. REUTERS/Alexandre Meneghini

A tourist steps near a crab about to spawn in the sea in Playa Giron, Cuba, April 21, 2017. Picture taken on April 21, 2017. REUTERS/Alexandre Meneghini

A crab coming from the surrounding forests reacts to the camera on its way to spawn in the sea in Playa Giron, Cuba, April 21, 2017. Picture taken on April 21, 2017. REUTERS/Alexandre Meneghini

Crabs coming from the surrounding forests cross a highway on their way to spawn in the sea in Playa Giron, Cuba, April 21, 2017. Picture taken on April 21, 2017. REUTERS/Alexandre Meneghini

Vultures eat smashed crabs on a highway in Playa Giron, Cuba, April 21, 2017. Picture taken on April 21, 2017. REUTERS/Alexandre Meneghini

Smoked prawns are seen on a wood-fired oven in Corumbau village on the coast of Bahia state, Brazil, February 19, 2017. Picture taken February 19, 2017. REUTERS/Nacho Doce

Spanish fisherman Santi Diaz Mosquera knows every journey down the treacherous Galician rocks in search of a handful of prized gooseneck barnacles could be his last. The dangerous practice of darting in between the huge waves that hammer against the Ferrol coastline in northwest Spain to cut the rare delicacy from the rocks claimed the life of his father nearly 15 years ago. But for Mosquera, the rewards from a successful mission are too great to ignore. He can sell 1 kg (2 lb) of the crustaceans for around 70 euros ($73). That rises to 250 euros ($260) at auction in the week before Christmas, a big sum in a region struggling since the collapse of its shipbuilding industry. On a good day Mosquera can catch 10 kg of gooseneck barnacles, also known as percebes. REUTERS/Nacho Doce SEARCH "BARNACLES" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY. Matching text: SPAIN-FISHING/

A customer pays for shrimp at a wet market in Singapore March 23, 2016. REUTERS/Edgar Su/File Photo GLOBAL BUSINESS WEEK AHEAD PACKAGE - SEARCH 'BUSINESS WEEK AHEAD 24 OCT' FOR ALL IMAGES

Britain's Catherine, Duchess of Cambridge, handles a crab pulled from a trap in the water while fishing with Prince William during a visit to Haida Gwaii in Skidegate, British Columbia, Canada, September 30, 2016. REUTERS/Chris Wattie

Britain's Prince William and Catherine, Duchess of Cambridge, react as an empty crab trap is pulled from the water while fishing during a visit to Haida Gwaii in Skidegate, British Columbia, Canada, September 30, 2016. REUTERS/Chris Wattie

Britain's Prince William and Catherine, Duchess of Cambridge, react as an empty crab trap is pulled from the water while fishing during a visit to Haida Gwaii in Skidegate, British Columbia, Canada, September 30, 2016. REUTERS/Chris Wattie

Britain's Prince William and Catherine, Duchess of Cambridge, watch as a crab trap is pulled from the water while fishing during a visit to Haida Gwaii in Skidegate, British Columbia, Canada, September 30, 2016. REUTERS/Chris Wattie

Britain's Prince William and Catherine, Duchess of Cambridge, handle crab pulled from a trap in the water while fishing during a visit to Haida Gwaii in Skidegate, British Columbia, Canada, September 30, 2016. REUTERS/Chris Wattie

Britain's Prince William and Catherine, Duchess of Cambridge, handle crab pulled from a trap in the water while fishing during a visit to Haida Gwaii in Skidegate, British Columbia, Canada, September 30, 2016. REUTERS/Chris Wattie

Britain's Prince William and Catherine, Duchess of Cambridge, hold crabs retrieved from a trap while fishing during a visit to Haida Gwaii in Skidegate, British Columbia, Canada, September 30, 2016. REUTERS/Chris Wattie