Using biotelemetry to understand the fishy underwater world. Applied science and conservation. Technical University of Denmark. Sometimes Professor, most times just Kim.https://bsky.app/profile/kimaarestrup.bsky.socialhttps://bsky.app/profile/kimaarestrup.bsky.social/post/3mfewxjd3zk2vEsox Lucius, 118 cm 12 kg, for you weird ppl not familiar with SI units, it’s 46.5 inches and 26.5 lbs. What a beauty.21 Feb 2026 15:31 +0000at://did:plc:rcipnvtfydyaedmzzwh3d7et/app.bsky.feed.post/3mfewxjd3zk2vhttps://bsky.app/profile/kimaarestrup.bsky.social/post/3maxh2tz63s2ehttps://www.instagram.com/reel/DSveLTpCkVN/?igsh=ZzFsZmg5amJqdjJi27 Dec 2025 09:01 +0000at://did:plc:rcipnvtfydyaedmzzwh3d7et/app.bsky.feed.post/3maxh2tz63s2ehttps://bsky.app/profile/kimaarestrup.bsky.social/post/3m733eyekos2xThis weeks workplace🫶03 Dec 2025 08:52 +0000at://did:plc:rcipnvtfydyaedmzzwh3d7et/app.bsky.feed.post/3m733eyekos2xhttps://bsky.app/profile/kimaarestrup.bsky.social/post/3m27aqcbujs2zIs there something at the end of the rainbow?02 Oct 2025 09:33 +0000at://did:plc:rcipnvtfydyaedmzzwh3d7et/app.bsky.feed.post/3m27aqcbujs2zhttps://bsky.app/profile/kimaarestrup.bsky.social/post/3lxx3ptyobk2bWe are at it again. #ABFT03 Sep 2025 16:51 +0000at://did:plc:rcipnvtfydyaedmzzwh3d7et/app.bsky.feed.post/3lxx3ptyobk2bhttps://bsky.app/profile/kimaarestrup.bsky.social/post/3lxsrrsfu5k26 [contains quote post or other embedded content]01 Sep 2025 23:43 +0000at://did:plc:rcipnvtfydyaedmzzwh3d7et/app.bsky.feed.post/3lxsrrsfu5k26https://bsky.app/profile/kimaarestrup.bsky.social/post/3lixdnznr4c2iJust a nice little spawning ground you think. But in fact the first Sea trout to spawn here in 500+ years. And only because barrier at Mill pond further downstream was removed. #riverrestoration24 Feb 2025 21:56 +0000at://did:plc:rcipnvtfydyaedmzzwh3d7et/app.bsky.feed.post/3lixdnznr4c2ihttps://bsky.app/profile/kimaarestrup.bsky.social/post/3li4he2xvpc22Yesterday after work walking along local stream looking for this. Can you guess what it is? Hint, it’s not created by humans.14 Feb 2025 05:20 +0000at://did:plc:rcipnvtfydyaedmzzwh3d7et/app.bsky.feed.post/3li4he2xvpc22https://bsky.app/profile/kimaarestrup.bsky.social/post/3lbuylqo72k2oToday we downloaded and serviced the acoustic receivers in the last (and smallest) of the three Danish Straits, completing the 2024 downloads. If you have acoustic tagged fish in the Baltic or North Sea and think they could have been detected, check the ETN database. @fishybiologistkim.bsky.social26 Nov 2024 21:36 +0000at://did:plc:rcipnvtfydyaedmzzwh3d7et/app.bsky.feed.post/3lbuylqo72k2ohttps://bsky.app/profile/kimaarestrup.bsky.social/post/3lbkxps6iqc23Cold fieldwork in Danish chalk stream River Villestrup, trying to recapture adult Sea trout tagged with heart rate loggers. Gin clear water and thousands of Sea trout since dams and weirs were removed a decade ago. @mariepedaccini.bsky.social with a male and female. @fishybiologistkim.bsky.social22 Nov 2024 21:53 +0000at://did:plc:rcipnvtfydyaedmzzwh3d7et/app.bsky.feed.post/3lbkxps6iqc23https://bsky.app/profile/kimaarestrup.bsky.social/post/3larw7ugyyc2dYesterday we downloaded and serviced the acoustic Thelma receiver array in The Sound (Øresund) between Denmark and Sweden. Data will be uploaded into the European tracking network database.12 Nov 2024 22:50 +0000at://did:plc:rcipnvtfydyaedmzzwh3d7et/app.bsky.feed.post/3larw7ugyyc2dhttps://bsky.app/profile/kimaarestrup.bsky.social/post/3l7fw4lljcc2yTagging sharks today with acoustic transmitters. Today’s species is Spiny Dogfish. Excited to follow their migration over the next three years with European Tracking Network. @aquatictracking.bsky.social @fishybiologistkim.bsky.social #NorTrack #DtoTrack26 Oct 2024 10:51 +0000at://did:plc:rcipnvtfydyaedmzzwh3d7et/app.bsky.feed.post/3l7fw4lljcc2yhttps://bsky.app/profile/kimaarestrup.bsky.social/post/3l34qve5sg226Atlantic Bluefin Tuna tagging has started. Tagging with multiple tags.This 282 cm absolute beauty got both a PSAT & an acoustic tag. #ScandinavianBluefinMarathon01 Sep 2024 21:43 +0000at://did:plc:rcipnvtfydyaedmzzwh3d7et/app.bsky.feed.post/3l34qve5sg226https://bsky.app/profile/kimaarestrup.bsky.social/post/3l2oknqk6cu2wTagging these beauties again this year (Picture by Bettina Pedersen). Stay tuned.27 Aug 2024 06:14 +0000at://did:plc:rcipnvtfydyaedmzzwh3d7et/app.bsky.feed.post/3l2oknqk6cu2w