Dean Grubbs is visiting our lab and will holding a guest lecture at Univerisity of Bergen. Stop by if you happen to be in Bergen.

A beautiful place to do some writing. Sad that this years writing retreat at Finse is over @lottedahlmann.bsky.social @robertlennox.bsky.social @tormodharaldstad.bsky.social

This AI tool to analyze circuli spacing in salmon scale is really impressive. academic.oup.com/biomethods/a...

New to BlueSky! Hopefully this can be a more interesting social media for #scicomm. Drop me a follow if you are interested in aquatic ecology, fish, salmon, sharks, arctic ecology, marine biology, acoustic telemetry, tracking etc. And check out: www.bergentelemetry.com for our projects.

7/12
Our models predicted that for smaller trout (around 30g), the likelihood of fin damage rose from 25% to 75% with increasing lice count. For larger trout (500g), damage likelihood jumped to nearly 100% in areas with high lice loads. #SalmonLice

6/12
We analyzed how injury prevalence relates to population size. Populations in rivers with high dorsal fin damage were generally smaller, suggesting that lice-induced injuries might indirectly lower population numbers by affecting survival or fitness. #Conservation

4/12
Through snorkel surveys over 15 years, we saw that injuries were more common near fjord outlets, where fish farms are located. This correlation highlights the link between farming activity and the spread of lice in these regions. #AquacultureImpact

3/12
Our data revealed a strong association: trout with high lice loads showed visible dorsal fin damage. The likelihood of injury increased with fish size and the number of lice, with up to 75% of fish affected in heavily infested areas. #FishHealth

2/12
This study assessed dorsal fin injuries on sea trout and their connection to lice infestations near fish farms. By analyzing over 5500 trout in Hardangerfjord, Norway, we documented how lice affect their health and population sizes. #SalmonLice