logo
Find us on
Twitter Facebook LinkedIn
Skip Navigation Links
logo 9/23/2024 1:26:53 AM     
Sea lice outbreak in salmon 
By Zoë Ducklow CA Source: castanet 6/28/2020
Zoë Ducklow
The results of a new wild salmon study are skin crawling: 94 per cent of wild salmon fry in the Discovery Islands — to the east of Campbell River — had sea lice attached. The infected fry hosted an average of seven of the parasitic lice.

Sea lice on juvenile salmon can drastically reduce chances of survival, whose small bodies can not handle the damage caused by lice. By rubbing off fish scales and eating the mucus membrane underneath, the lice expose fish to water-born pathogens.

Further north in the Broughton Archipelago where five fish farms were recently closed, numbers are lower: 34 per cent of wild juveniles had an average of 1.3 lice. Nootka and Clayoquot Sounds on the west coast showed 87 and 94 per cent infection rates respectively.

The report was released Thursday, June 25 by B.C.’s First Nations Leadership Council, along with scientist Alexandra Morton who led the study.
 

The leadership council, made up of political leaders from three main First Nations associations in B.C., officially called for an end to ocean-based fish farms in B.C.

‘Namgis First Nation elected chief and hereditary chief Don Svanvik is glad to see other First Nations join the fight. His Nation lives on Cormorant Island in the Broughton Archipelago, and has fought against ocean fish farming for years.

The high numbers of sea lice this spring is a direct result of fish farms dotted along wild salmon migration routes, maintains the report. Adult salmon often swim home to spawn with lice attached, but when they die after laying eggs, the lice would also perish.

“Normally, when the little babies go out, they wouldn’t be swimming through all this lice,” Svanvik said.

However, fish farms provide a docile, year-round host for sea lice. The parasitic lice multiplies in farms, “and shed billions of larvae into the marine currents,” Morton wrote in the report.

“Imagine blood-sucking chickens hanging off you,” Svanvik said.

 
Salmon, Atlantic Continue...

News Id SourceStampcountry
976How old fishing nets could be part of the climate crisis solutioncnn2023-12-05CL
977Locals outraged after pet owner leaves fish inside aquarium on curb among free itemsnypost2023-12-06AU
978La Jolla scientists study booms and busts of anchovy populationlajollalight2023-12-10US
979Abandoned fish cages slowly turning into floating museumscitizen.digital2023-12-03KE
980Norway may stop fishing due to microplastics pollutiontass2023-12-14NO
981UK secures £970million fishing stock with EU in dealexpress2023-12-11UK
982Norway and Faroe Islands hammer out deal on fishing quotasweareaquaculture2023-12-15NO
983Its time for us to go: the Mexican fishing village swallowed by the seatheguardian2023-10-20MX
984Canada plans crackdown as trade data shows elver exports were 4 times the legal catch in 2022msn2023-12-15CA
985Hanako ("flower girl") was a remarkable koi fish that lived for 226 yearstwitter2023-12-15JP
986This Little-Known Lake Is Perfect For Easy Fishing, Boating, And Swimming In Texasmsn2023-12-14US
987Hurricane season is over, right? Why fishing is out of the questionTreasure Coast Newspapers2023-12-14US
988Delta striped bass, sturgeon fishing sizzles as emergency regulations go into effectThe Stockton Record2023-12-06US
989Record salmon run returns to Mokelumne River, main stem Sacramento run is dismalThe Stockton Record2023-11-29US
990Fishing and conservation groups condemn Delta Tunnel as final EIR is releasedmsn2023-12-14US
991Oscar winners latest film draws on real-life experience working in fishing industrymsn2023-12-12US
992Мой первый лед этого годаohotniki2023-12-08RU
993The big hunting and fishing changes tied up in Maines tribal sovereignty talksbangordailynews2023-12-13US
994Tuvalu leads the way in ensuring safe and fair fishingtuvalufisheries2023-12-13TV
995Oceana Canada audit claims country has mismanaged fisheries over last seven yearsseafoodsource2023-12-13CA
996Fishing the Midwest returns for 35th yearechopress2023-12-13US
997С начала года российские рыбаки добыли более 5 млн тонн рыбыrg2023-12-12RU
998Invasive, football-size goldfish found in a Minnesota lakeCNN2021-07-14US
999A Quarter of Freshwater Fish Are at Risk of Extinctionnytimes2023-12-11US
1000This Japanese dragon terrorized ancient seassciencedaily2023-12-12US

214 215 216 39 of [217 - pages.]