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Joacim Näslund

Researcher at the Institute of Freshwater Research, SLU Aqua (Dept. Aquatic Resources). My main research areas are environmental monitoring and prestoration ecology in freshwater environments, with particular focus on fish in streams and rivers.

Teaching

I lecture about restoration ecology on the SLU Masters course "Ecology for Fish Management and Conservation".

I also have previous teaching experience in e.g. ecology, animal behaviour and cognition, and statistics.

Selected publications

Fish monitoring

Vollset K, Lennox R, Thorstad E, Auer S, Bär K, Larsen MH, Mahlum S, Näslund J, Stryhn H & Dohoo I. (2020). Systematic review and meta-analysis of PIT tagging effects on mortality and growth of juvenile salmonids. Reviews in Fish Biology and Fisheries (Accepted manuscript)

 
Näslund J & Lundgren M. (2018). Mapping the distribution of scale-rayed wrasse Acantholabrus palloni in Swedish Skagerrak using angling records. PeerJ 6:e5900. doi: 10.7717/peerj.5900

Aquatic functional ecology

Závorka L, Larranaga N, Lovén Wallerius M, Näslund J, Koeck B, Wengström N, Cucherousset J, Johnsson JI. (2020). Within-stream phenotypic divergence in head shape of brown trout associated to invasive brook trout. Biological Journal of the Linnean Society 129(2):347-355. doi: 10.1093/biolinnean/blz192

Závorka L, Koeck B, Cucherousset J, Brijs J, Näslund J, Aldvén D, Höjesjö J, Fleming IA & Johnsson JI (2017). Co-existence with non-native brook trout breaks down the phenotypic syndrome in brown trout parr. Functional Ecology 31:1582-1591. doi:10.1111/1365-2435.12862

Závorka L, Aldvén D, Näslund J, Höjesjö J & Johnsson JI. (2016). Inactive trout come out at night: behavioural variation, circadian activity and fitness in the wild. Ecology 97(9):2223-2231. doi: 10.1002/ecy.1475

Näslund J, Sundström LF & Johnsson JI. (2017). Autumn food-restriction reduces smoltification rate, but not over-winter survival, in juvenile brown trout Salmo trutta. Ecology of Freshwater Fish 26:205-216. doi: 10.1111/eff.12268

Näslund J, Aldvén D & Závorka L. (2015). Salmonid eggs provide marine-derived nutrients to Atlantic salmon and brown trout parr prior to the onset of winter - observations from a Swedish coastal stream. Environmental Biology of Fishes 98:2305-2313. doi: 10.1007/s10641-015-0436-y

Závorka L, Aldvén D, Näslund J, Höjesjö J & Johnsson JI. (2015). Linking lab activity with growth and movement in the wild: explaining pace-of-life in a trout stream. Behavioral Ecology 26(3):877-884. doi: 10.1093/beheco/arv029

Fish behaviour

Johnsson JI & Näslund J. (2018). Studying behavioural variation in salmonids from an ecological perspective: observations, questions and methodological considerations. Reviews in Fish Biology and Fisheries 28(4):795-823. doi: 10.1007/s11160-018-9532-3

Koeck B, Závorka L, Aldvén D, Näslund J, Arlinghaus R, Thörnqvist P-O, Winberg S, Björnsson BTh & Johnsson JI. (2019). Angling selects against active and stress-resilient phenotypes in rainbow trout
Canadian Journal of Fisheries and Aquatic Sciences 76(2):320-333. doi: 10.1139/cjfas-2018-0085

Näslund J, Wengström N, Wahlqvist F, Aldvén D, Závorka L & Höjesjö J. (2018).
Behavioral type, in interaction with body size, affects the recapture rate of brown trout Salmo trutta juveniles in their nursery stream
Integrative Zoology 13(5):604-611. doi: 10.1111/1749-4877.12323

Näslund J, Saarinen Claesson P & Johnsson JI (2017). Performance of wild brown trout in relation to energetic state and lab-scored activity during the early-life survival bottleneck. Behavioral Ecology and Sociobiology 71(11):165. doi: 10.1007/s00265-017-2395-0

Filipsson K, Petersson T, Höjesjö J, Piccolo JJ, Näslund J, Wengström N & Österling EM (2018). Heavy loads of parasitic freshwater pearl mussel (Margaritifera maragritifera L.) larvae impair foraging, activity, and dominance performance in juvenile brown trout (Salmo trutta L.). Ecology of Freshwater Fish 27(1):70-77

Aquaculture and stocking:

Guo H, Zhang D, Wang L, Li W, He P, Näslund J & Zhang X. (2020). Sperm competition in golden cuttlefish Sepia esculenta: the impact of mating order and male size. Aquaculture 530:735929. doi: 10.1016/j.aquaculture.2020.735929

Näslund J, Larsen MH, Thomassen ST, Aarestrup K. & Johnsson JI. (2017). Environment-dependent plasticity and ontogenetic changes in the brain of hatchery-reared Atlantic salmon. Journal of Zoology 301(1):75-82. doi:10.1111/jzo.12392

Rosengren M, Kvingedal E, Näslund J, Johnsson JI & Sundell K. (2017). Born to be wild: effects of rearing density and environmental enrichment on stress, welfare and smolt migration in hatchery reared Atlantic salmon
Canadian Journal of Fisheries and Aquatic Sciences 74(3):396-405. doi: 10.1139/cjfas-2015-0515

Näslund J & Johnsson JI. (2016). Environmental enrichment for fish in captive environments: effects of physical structures and substratesz. Fish and Fisheries 17(1):1-30. doi: 10.1111/faf.12088

Johnsson JI, Brockmark S & Näslund J. (2014). Environmental effects on behavioural development: consequences for fitness of captive-reared fish in the wild. Journal of Fish Biology 85(6):1946-1971. doi: 10.1111/jfb.12547

Näslund J, Rosengren M, Del Villar D, Gansel L, Norrgård JR, Persson L, Winkowski JJ & Kvingedal E. (2013). Hatchery tank enrichment affects cortisol levels and shelter-seeking in Atlantic salmon (Salmo salar). Canadian Journal of Fisheries and Aquatic Sciences 70(4):585-590. doi: 10.1139/cjfas-2012-0302


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