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Dr Magnus Johnson

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Magnus Johnson

Senior Lecturer in Environmental Marine Science


Can a key boreal Calanus copepod species now complete its life-cycle in the Arctic? Evidence and implications for Arctic food-webs (2021)
Journal Article
Tarling, G. A., Freer, J. J., Banas, N. S., Belcher, A., Blackwell, M., Castellani, C., …Wootton, M. (2022). Can a key boreal Calanus copepod species now complete its life-cycle in the Arctic? Evidence and implications for Arctic food-webs. AMBIO: A Journal of the Human Environment, 51(2), 333–344. https://doi.org/10.1007/s13280-021-01667-y

The changing Arctic environment is affecting zooplankton that support its abundant wildlife. We examined how these changes are influencing a key zooplankton species, Calanus finmarchicus, principally found in the North Atlantic but expatriated to the... Read More about Can a key boreal Calanus copepod species now complete its life-cycle in the Arctic? Evidence and implications for Arctic food-webs.

Moving Toward a Strategy for Addressing Climate Displacement of Marine Resources: A Proof-of-Concept (2020)
Journal Article
Mangano, M. C., Mieszkowska, N., Helmuth, B., Domingos, T., Sousa, T., Baiamonte, G., …Sarà, G. (2020). Moving Toward a Strategy for Addressing Climate Displacement of Marine Resources: A Proof-of-Concept. Frontiers in Marine Science, 7, Article 408. https://doi.org/10.3389/fmars.2020.00408

Realistic predictions of climate change effects on natural resources are central to adaptation policies that try to reduce these impacts. However, most current forecasting approaches do not incorporate species-specific, process-based biological infor... Read More about Moving Toward a Strategy for Addressing Climate Displacement of Marine Resources: A Proof-of-Concept.

Converting SACFOR data for statistical analysis: Validation, demonstration and further possibilities (2020)
Journal Article
Strong, J. A., & Johnson, M. (2020). Converting SACFOR data for statistical analysis: Validation, demonstration and further possibilities. Marine Biodiversity Records, 13(1), Article 2. https://doi.org/10.1186/s41200-020-0184-3

© 2020 The Author(s). Background: the context and purpose of the study: Semi-quantitative scales are often used for the rapid assessment of species composition and abundance during time-limited surveys. The semi-quantitative SACFOR abundance scale wa... Read More about Converting SACFOR data for statistical analysis: Validation, demonstration and further possibilities.

Home-made fish traps reduce the capture of small shannies (Lipophrys pholis) compared to using hand-nets in the UK (2020)
Journal Article
Barrett, C. J., Johnson, M. L., & Hull, S. L. (2020). Home-made fish traps reduce the capture of small shannies (Lipophrys pholis) compared to using hand-nets in the UK. Conservation Evidence Journal, 17, 32-34

A replicated, controlled study in 2011-2012 found that using home-made fish traps reduced the capture of unwanted, small shannies Lipophrys pholis compared to using conventional hand-nets in intertidal habitats.

Uneasy bedfellows: Fisheries and the search for space for marine conservation zones in english waters (2019)
Book Chapter
Rodmell, D., Caveen, A., & Johnson, M. L. (2020). Uneasy bedfellows: Fisheries and the search for space for marine conservation zones in english waters. In J. Humphreys, & R. W. Clark (Eds.), Marine Protected Areas: Science Policy and Management (99-112). Elsevier. https://doi.org/10.1016/B978-0-08-102698-4.00005-8

In contrast to the exclusion of human use considerations in MPA designation processes under the European nature directives, the distinct UK legal framework for Marine Conservation Zones (MCZs) permits social and economic factors in site selection dec... Read More about Uneasy bedfellows: Fisheries and the search for space for marine conservation zones in english waters.

Interaction between the Yorkshire coast static gear crustacean fishery and offshore wind energy development (2019)
Thesis
Roach, M. (2019). Interaction between the Yorkshire coast static gear crustacean fishery and offshore wind energy development. (Thesis). University of Hull. Retrieved from https://hull-repository.worktribe.com/output/4222374

Globally the offshore wind energy sector has seen an increase in the number of and spatial scale of offshore wind farms in the last decade. Offshore wind farms can be seen as many EU member states answer to meeting their energy demands from renewable... Read More about Interaction between the Yorkshire coast static gear crustacean fishery and offshore wind energy development.

The effects of temporary exclusion of activity due to wind farm construction on a lobster (Homarus gammarus) fishery suggests a potential management approach (2018)
Journal Article
Roach, M., Cohen, M., Forster, R., Revill, A. S., & Johnson, M. (2018). The effects of temporary exclusion of activity due to wind farm construction on a lobster (Homarus gammarus) fishery suggests a potential management approach. ICES journal of marine science : journal du conseil, 75(4), 1416-1426. https://doi.org/10.1093/icesjms/fsy006

Offshore wind farms form an important part of many countries strategy for responding to the threat of climate change but their development can conflict with other offshore activities. Static gear fisheries targeting sedentary benthic species are par... Read More about The effects of temporary exclusion of activity due to wind farm construction on a lobster (Homarus gammarus) fishery suggests a potential management approach.

Integrating multiple stressors in aquaculture to build the blue growth in a changing sea (2017)
Journal Article
Sarà, G., Mangano, M. C., Johnson, M., & Mazzola, A. (2018). Integrating multiple stressors in aquaculture to build the blue growth in a changing sea. Hydrobiologia, 809(1), 5-17. https://doi.org/10.1007/s10750-017-3469-8

Fisheries currently represent the main source of animal protein intake worldwide, although catches of most commercial species are at or beyond maximum sustainable yields. Increasing production would require an excess of exploitation levels and aquacu... Read More about Integrating multiple stressors in aquaculture to build the blue growth in a changing sea.

Optimising commerical practices and developing aquaculture techniques for the Norway lobster (Nephrops norvegicus) fishery (2017)
Thesis
Cowing, D. M. (2017). Optimising commerical practices and developing aquaculture techniques for the Norway lobster (Nephrops norvegicus) fishery. (Thesis). University of Hull. Retrieved from https://hull-repository.worktribe.com/output/4221009

The Nephrops norvegicus (referred to as Nephrops) fishery is regarded as one of the most important fisheries around the UK, yet data suggest that landings are declining. The role of hatcheries for other crustacean species has proved useful for stock... Read More about Optimising commerical practices and developing aquaculture techniques for the Norway lobster (Nephrops norvegicus) fishery.