Warmer, oxygen-poor waters threaten world’s ‘most heavily exploited’ fish

Warmer, oxygen-poor waters threaten world’s ‘most heavily exploited’ fish

Source: mongabay

1/6/2022

A new report using core samples taken from the seabed has determined that the Humboldt Current system off the coast of Peru was home to smaller fish during the last interglacial period, 130,000 years ago.
The conditions back then — with little oxygen content in the ocean and temperatures about 2°C (3.6°F) warmer than the average temperature in the current Holocene epoch — mirror those that scientists have predicted for 2100.
While many studies have argued that warmer water and lower oxygen lead to smaller fish, the added pressure of industrial fishing has made it difficult to determine the threat that climate change will pose on fisheries.
The Humboldt Current system is one of the most productive fisheries in the world, contributing to more than 15% of the global annual fish catch, so significant changes to this system will threaten food security.

In 2008, a team of researchers boarded an expedition vessel and set sail for the anchovy-rich waters off the coast of Peru. They were searching for a place to extract a sediment sample that would unearth secrets about the ocean from 130,000 years ago, a time when the planet was experiencing its last interglacial period. About 130 kilometers (80 miles) north of Lima, the researchers found an ideal spot; they bore into the seabed and drew out a 20-meter (66-foot) core sample.

Continue...

News Id		Source	Stamp	country
3076	She went from show diver to aquarium curator	independenttribune	2022-03-08	UK
3077	Platteville fish dealer convicted in state’s first invasive carp case	nbc15	2022-03-10	US
3078	How do blind cavefish survive their low-oxygen environment?	University of Cincinnati	2022-03-13	US
3079	One fish, two fish: New goby species described from the Philippines	mongabay	2022-02-21	PH
3080	Would you eat fish or prawns caught in the Brisbane River? For some anglers it's back on the menu	ABC Radio Brisbane	2022-02-23	AU
3081	Huge haul: NH tuna captain reels in 800 pound fish	whdh	2022-02-23	US
3082	China puts total fishing ban on ailing Yellow River’s upper reaches	scmp	2022-02-26	CN
3083	Huge Great White Snatches 100lb Tuna From Fisherman, Leaving His Hand 'All Cut Up'	MSN	2022-03-06	US
3084	12+ Pound Burbot Breaks New Hampshire State Record	fishncanada	2022-01-13	CA
3085	Snapper, tarakihi and ... koi carp? Pest fish for sale alongside NZ favourites	stuff	2022-02-21	NZ
3086	A new discovery could help save this 10-foot-long 'living fossil' fish	nationalgeographic	2022-02-17	UK
3087	Koi hobbyists in tears: Expensive fish lost during power outage	trinidadexpress	2022-02-18	US
3088	10 killed, 11 missing after Spanish fishing boat sinks off Newfoundland coast	cbc	2022-02-15	SP
3089	Iowa Man Catches Huge Flathead Catfish While Ice Fishing	khak	2022-02-27	US
3090	Spain mourns worst fishing tragedy in 38 years after sinking of Villa de Pitanxo	theguardian	2022-02-16	SP
3091	Neolithic fisherman who died 5,000 years ago, and was found in a mass grave in Northern Chile	dailymail	2022-02-16	UK
3092	It may be the little things that determine whether whales and salmon survive	The Olympian	2022-02-13	US
3093	North Carolina Angler Breaks 61-Year-Old Fishing Record Using A Rod He Built Himself	brobible	2022-02-14	US
3094	Mayor Who Said Ice Fishing Leads to Prostitution Resigns	vice	2022-02-14	US
3095	Fish Biologist Proves That Disney Lied to Children With ‘Finding Nemo’	insidethemagic	2022-02-15	US
3096	More fish than previously thought can shoot down prey by spitting water at them	news9live	2022-02-16	CA
3097	Death and decimation: Whitby devastated by declining marine life	theguardian	2022-02-10	UK
3098	Fishing image wins marine conservation photography prize	cnn	2022-02-11	VE
3099	Annual quest for ‘once-in-a-lifetime’ fish lasts 35 minutes	thealpenanews	2022-02-07	US
3100	Facebook to begin laying cable through fishing grounds off Nova Scotia	magnoliastatelive	2022-02-07	US

123 of [218 - pages.]