logo
Find us on
Twitter Facebook LinkedIn
              
logo 11/25/2024 10:31:05 PM     
Warmer, oxygen-poor waters threaten world’s ‘most heavily exploited’ fish 
By Elizabeth Claire Alberts PE Source: mongabay 1/6/2022
Elizabeth Claire Alberts
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 SourceStampcountry
776This 6-foot-long, 200-pound catfish is a goliath—and makes an epic migrationnationalgeographic2024-03-21US
777Scots anglers legs shaking after spending an hour reeling in skate fishdailyrecord2024-03-19UK
778Карась у кромки льдаohotniki2024-04-04RU
779Woman in Oregon reels in record-breaking fishfox news2024-04-09US
780California salmon fishing canceled for second year in rowFOX News2024-04-11US
781Study says wild fish healthier for you than farmed salmonmykxlg2024-03-20CA
782Fishery protests embarrassing for the provinceCBC News2024-03-23CA
783Novel parasite detected in trout at three Oregon fish hatcheriesktvl2024-03-19US
784Anglers make tough catch by landing a trip to Vancouver Island watershedVictoria Times Colonist2017-06-25CA
785Follow the fish for more fishing successNorthland Outdoors2024-04-05US
786Returning some fishing rodsgmtoday2024-04-04US
787Recover Capelin and Northern Cod by Pausing the Commercial Capelin FisheryGLOBE NEWSWIRE2024-04-04CA
788Stream trout fishing starts off with a bangduluthnewstribune2024-04-04US
789Five things to know about Canadas lucrative baby eel fisherycitynews2024-04-04CA
790Blue Catfish Are Taking Over in Maryland Waterseinnews2024-04-04US
791Introduction to Bullhead Fishing Clinicseinnews2024-04-05US
792Youth try to hook Walter at 35th Under the Lock Fishing Derby in PeterboroughGlobal News2024-04-05CA
793Fishing closures at Port Renfrew a serious mistakevancouversun2024-04-05CA
794Canada, Alaska suspend fishing of Yukon River chinook salmon for 7 yearsCBC News2024-04-03CA
795Anglers put on notice over rubbish at Sydney wharves9news2024-04-04AU
796Man using electric wire to catch fish electrocutedsunstar2024-03-23PH
797Indonesia struggles to protect Banggai cardinalfishchinadialogueocean2024-03-25ID
798Vietnam police break up protest against Taiwan firm over fish deathsReuters2016-05-08VN
799Satellites track the tiny silver fish hugely important to marine lifeCanada’s National Observer2024-03-20CA
800This Fish Can Chew Crocodile Bones In 30 Secondsnews182024-03-24IN

134 135 136 31 of [137 - pages.]