Christian Tsangarides

Baltic & North Sea coordinator at @LIFEplatformEU Vice-Chair of the Baltic Sea Advisory Council GA

[Christian Tsangarides @LowImpactFish]

The EU and Sweden prefer to use our herring for salmon farms in Norway causing their own wild salmon to lack food and collapse.

It seems obvious that this self-sabotage should end but DG Mare, HaV and ICES have proved incompetent.

[Christian Tsangarides @LowImpactFish]

Very impressed with this opinion piece from 36 Swedish chefs. They're more knowledgable than the civil servants and politicians put together.

Maybe because their livelihoods like those of coastal fishermen depend on well managed resources?

[Low Impact Fishers of Europe @LIFEplatformEU]

Small-scale fisheries, fisheries science and management practices: only 2 days before our event on the ongoing #Baltic Sea Cod #Emergency !
🦀You are still in time to register here: https://t.co/pRNw8I52Qq
🐟See you in Brussels on 26/6

[Low Impact Fishers of Europe @LIFEplatformEU]

Baltic Sea #Emergency : join us in #Brussels on 26 June to jointly tackle with #fishers, @EU_MARE and fisheries experts the closure of the #cod fishery, the role of scientific advice and the impact on small-scale fishing communities. Register here https://t.co/mFEARp5fw2

[Christian Tsangarides @LowImpactFish]

@SustainFishUW @Macomabalthica Their idea seems to be that management and industry prioritise natural resource productivity and move away from focus on yield extraction.

Which seems like a good idea if I've understood them correctly.

[Christian Tsangarides @LowImpactFish]

@DWestlen Detta är lovande om det inkluderar pelagisk trålning av sill och skarpsill som står f��r mer än 95% av trålningen längs den svenska kusten.

Omfattar förslaget trålningen av sill, strömming och skarpsill? ��r det riktat mot bara spätta och flundra är det inte ambitiös.

[Christian Tsangarides @LowImpactFish]

@DValentinsson @mazeson @Slu_ Det var bra att läsa, särskilt om centrala sillen, men ni underskattar hur allvarlig situationen för skarpsill är.

3 år i rad med den lägsta rekryteringen någonsin (överlägset). Det måste vara rubriken. Ett enormt problem & förmodligen en del av orsaken till sillens förbättring

[Christian Tsangarides @LowImpactFish]

all fisheries scientists and managers should understand this.

[Mike Lawler @mikeandallie]

2/2 In particular, the part of the video starting around 9 min. It is so important to understand that there are many "real world" things where 1,000 simulations tells you **nothing** about what the tails look like.

[Mike Lawler @mikeandallie]

1/2 This relatively short video from @nntaleb from almost 10 years ago has one of the most important math lessons that I've ever learned, and it comes up again and again in evaluating risk https://t.co/cPESzQUnKD

[Christian Tsangarides @LowImpactFish]

Not just a victory for seabirds but also for fishers who depend on thriving stocks & sufficient prey.

Sincerely hope the EU follows suit and implements similar measures throughout our seas.

Sidenote - in the Baltic sandeel catches are completely unregulated (albeit small).

[Christian Tsangarides @LowImpactFish]

Det aldrig har funnits så lite strömmingbiomass i Bottenhavet.

Enligt ICES: “In 2022, 99% of the Swedish catches came from trawls, 1% from gillnets and 0.03% from other fishing gears.”

Känns förvirrande att ministern hävdade att beslutet var till för att hjälpa kustfiskare.

[Isabella Lövin 🌻 @IsabellaLovin]

Bra. Strömmingskvoten är inte i linje med EU:s fiskeripolitik. Enligt denna ska bestånden ligga över (artikel 2.2) den nivå som producerar s k Maximal Hållbar Avkastning, absolut inte under B-lim - gränsen för riskerad kollaps. Solklart vilseledande. https://t.co/JzLyu36BgP

[Christian Tsangarides @LowImpactFish]

@PFA_eu A healthy stock size for this herring is about 3.3 million tonnes.
We are very far below that.

The graph in your picture doesn't show what Bmsy is.
Over that threshold is when we are "fishing the interest".

[Christian Tsangarides @LowImpactFish]

One day we will get a Baltic paper!

It may be the simplest ecosystem in terms of species diversity but we still lack science.

Cod is a choke species for plaice (and pelagic species), while herring should limit the sprat fishery.

No mixed fishery analysis = keep on overfishing!

[ICES @ICESmarine]

🚨 Advice release: ICES advice to @EU_MARE, @NFdep & @DefraGovUK on mixed-fisheries considerations is out today. (1/2)
🐟 Bay of Biscay: https://t.co/CDwoJJGZPo
🐟 Celtic Sea: https://t.co/2tRHsnHBkZ
🐟 Greater North Sea: https://t.co/P6Yg6P1YTa

[Christian Tsangarides @LowImpactFish]

Would like to read this!
In Europe current HRC is totally biased against coastal fishermen. Modelling and management are short-term yield focused. Population structures get truncated and we have a lack of big fish problem.

[Trevor Branch (moved to Bluesky) @TrevorABranch]

@christophgriff5 @FormasForsk @_SLU @SLU_aqua @FishFishJournal Nice work! My student @JoshuaZahner has been testing a harvest control rule based on the biomass of big fish in a herring population, instead of based on total biomass... since big fish are more valuable per kg. Paper accepted at ICES JMS.

[Chris Griffiths @christophgriff5]

Very happy to announce that I have received a 3-year ECR @FormasForsk grant to continue our work on the age structure of exploited fish stocks @_SLU @SLU_aqua. The grant builds directly on our ABImsy work recently published in @FishFishJournal - https://t.co/YJASPowAbJ 🐟🎣💻

[Nils Höglund @Nils_Hoglund]

Me and Mrs Lövin talk about the failed CFP policies and what needs to change (in Swedish only I am afraid but u know how to solve that)

[Isabella Lövin 🌻 @IsabellaLovin]

Östersjön mår sämre än någonsin, enligt Helcoms senaste sammanställning. Mer av samma politik kommer inte hjälpa; Därför behövs en ny havslag på EU-nivå. Skriver i Altinget med⁩ ⁦@CCBnetwork⁩ ⁦@Nils_Hoglund⁩ https://t.co/WdoPKH0dFL

[Christian Tsangarides @LowImpactFish]

True in economics and also with fish.

[Danielle DiMartino Booth @DiMartinoBooth]

POWELL CALLS OUT MODEL MYOPIA

“Even w/state-of-the-art models & even in relatively calm times, the economy frequently surprises us. But our economy is flexible & dynamic & subject to unpredictable shocks, such as a GFC or a pandemic…forecasters have to think outside the models”

[Danielle DiMartino Booth @DiMartinoBooth]

POWELL CALLS OUT MODEL MYOPIA

“Even w/state-of-the-art models & even in relatively calm times, the economy frequently surprises us. But our economy is flexible & dynamic & subject to unpredictable shocks, such as a GFC or a pandemic…forecasters have to think outside the models”

[FishSec @FishSecretariat]

Small fish have a big impact on the marine ecosystems. With the poor status of herring stocks in the Baltic, a greater focus on their role is urgently needed. FishSec has launched a new project: https://t.co/FYERE0w7ml