Johanna Gammal
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johannagammal.bsky.social
Johanna Gammal
@johannagammal.bsky.social
Project planner at CoastClim (coastclim.org), Tvärminne Zoological Station, University of Helsinki
Reposted by Johanna Gammal
🚨 New publication!

Federica Manca et al's network analyses show that marine macrophyte-animal associations can be highly structured and they are not random assemblages. Additionally, the key species bladderwrack is again showing how important it is!

👉 Read more: doi.org/10.3354/meps...
November 28, 2025 at 12:31 PM
Reposted by Johanna Gammal
🚨 New publication!

@ivanrodil.bsky.social et al studied effects of different types of detritus on seafloor fauna and bacteria using traditional and eDNA approaches.

Despite some differences between the methods, some common trends were detected.

👉Check out the results: doi.org/10.1007/s002...
November 28, 2025 at 12:25 PM
Reposted by Johanna Gammal
Ekologisk hållbarhet är en förutsättning för både ekonomiska och sociala värden – och måste sättas främst också i det kortsiktiga beslutsfattandet. Läs uppmaningen från @alfnorkko.bsky.social & Christoph Humborg @coastclim.bsky.social i @hbl.fi, med anledning av den pågående havskonferensen.
DEBATT: Finland och Sverige måste sätta ett friskt hav främst
Ekologisk hållbarhet är en förutsättning för ekonomiska och sociala värden i haven, skriver Alf Norkko och Christoph…
www.hbl.fi
June 10, 2025 at 12:07 PM
Reposted by Johanna Gammal
CoastClim Newsletter:
🌍Field campaign in Ireland comparing BVOC emissions from Baltic and Atlantic plants and algae
🌍 Find interesting sea related events close to you this summer, e.g. Askö open house and the Baltic Sea day

Read and sign up for the newsletter at www.coastclim.org/news/
June 13, 2025 at 8:25 AM
Reposted by Johanna Gammal
Tune it at 13 EET for @roellammerant.bsky.social PhD-defense on #macrophyte traits snd #carboncycling
Zoom: helsinki.zoom.us/j/68659327422
April 4, 2025 at 9:41 AM
Reposted by Johanna Gammal
Check out our new paper on experimental manipulations in situ of #marine #heatwaves championed by @aquanorman.bsky.social ‬& Laura Kauppi @alfnorkko.bsky.social @coastclim.bsky.social
@tvarminne.bsky.social @helsinki.fi
April 1, 2025 at 1:11 PM
Reposted by Johanna Gammal
NEW PhD thesis! Roel Lammerant will defend the doctoral dissertation entitled "Functional perspective on the role of macrophytes in the coastal carbon cycle across different temporal and spatial scales" on Friday 4.4 at 13:00 at Tvärminne Zoological Station.
Stream: helsinki.zoom.us/j/68659327422
March 31, 2025 at 1:22 PM
Reposted by Johanna Gammal
Reposted by Johanna Gammal
Are the Oceans Reaching Their Limit? Join the Discussion at #ACCCImpactWeek on April 22. Top researchers from CoastClim participate @alfnorkko.bsky.social and Anna Villnäs. Register by April 9, the event is free of charge.
March 25, 2025 at 9:48 AM
Reposted by Johanna Gammal
Coastal zones are identified as important natural carbon sinks globally, but in brackish environments like the Baltic Sea, knowledge of coastal carbon sequestration is limited.

This new study shows that shallow and partly enclosed Baltic bays are significant sinks for carbon and nutrients.
Sheltered bays are significant carbon sinks in the Baltic Sea - Stockholm University Baltic Sea Centre
Coastal zones are identified as important natural carbon sinks globally, especially habitats with abundant vegetation such as seagrass meadows and mangrove areas. In brackish environments like the Bal...
www.su.se
March 13, 2025 at 10:37 AM
Reposted by Johanna Gammal
👉 Save the date! Itämeriluentoja 19.3. klo 16.30-17.30:
"Östersjöns ekosystem i snabb förändring”, professori Alf Norkko, TZS
“Itämeren mikromuoveista“, tutkimusprofessori Maiju Lehtiniemi, SYKE
Järjestäjä: Societas. Paikka: Tiedekulma Think Lounge.
helsinginyliopisto.etapahtuma.fi/Kalenteri/Su...
March 13, 2025 at 11:51 AM
Reposted by Johanna Gammal
Check out this BBC story, covering our first Polar scientific diving course run by Edd Stockdale at the Finnish Scientific Diving Academy in 2024, building capacity for collecting data to understand rapid changes in polar regions. @tvarminne.bsky.social @helsinki.fi

www.bbc.com/future/artic...
'You look up and see light coming through': The divers venturing under the ice in the name of science
It is a world cut off from our own by thick blankets of floating ice, but some scientists are taking the plunge to learn how these frozen depths are changing.
www.bbc.com
March 13, 2025 at 8:17 AM
Reposted by Johanna Gammal
New publication! Gammal et al. sampled benthic macrofauna, solute fluxes and environmental variables at 3 shallow habitats throughout one year.
Results show that the strength of biodiversity-function relationships really depends on which species are present in which habitat and during which season.
Seasonal Variation in the Role of Benthic Macrofauna Communities for Ecosystem Functioning in Shallow Coastal Soft-Sediment Habitats - Estuaries and Coasts
Coastal zones include a variety of habitats and numerous biodiversity components, which provide essential ecosystem functions and services. In the wake of the escalating climate and biodiversity crise...
doi.org
February 17, 2025 at 1:02 PM
Reposted by Johanna Gammal
📢 Amazing 3-year Postdoc Opportunity in Food Web Ecology

- including mesocosm experiments and molecular techniques

#Foodwebs #Heatwaves

@helsinkiuni.bsky.social @tvarminne.bsky.social @coastclim.bsky.social

2 weeks left to apply❗❗

▶️ Apply: jobs.helsinki.fi/job/Hanko-3-...

Please share ❗
January 21, 2025 at 8:55 AM
Reposted by Johanna Gammal
👉Open PhD position!
in pelagic biogeochemistry @tvarminne.bsky.social @helsinkiuni.bsky.social

Interested in investigating temporal and spatial variability in coastal sea-air GHG fluxes, impacts of heatwaves and links to biodiversity? Check this out!

Apply before 31 January
👉coastclim.org/news
December 4, 2024 at 8:04 AM
Reposted by Johanna Gammal
👉Read the latest Newsletter!

After years of extensive field work and experiments, we are looking forward to combining data and discover new insights during the coming year!

Find all letters and sign up here: coastclim.org/news
News - CoastClim
Read the latest news from CoastClim!
coastclim.org
December 2, 2024 at 1:44 PM
Reposted by Johanna Gammal
NEW PhD thesis! Norman Göbeler will defend the doctoral dissertation entitled "The role of Marine Heatwaves for #biodiversity and #ecosystem functioning in #coastal waters" on Wednesday 4.12.2024 at 13 PM.
The public examination streamed here: helsinki.zoom.us/j/64509869274

#wearehelsinkiuni #tzs
December 2, 2024 at 10:17 AM