Personal profile
Contact Info
01248 383948
Overview
I gained my MSc in Marine Environmental Protection at Bangor University in 2008 with a research project on the population genetics of the Caribbean spiny lobster in the western Antilles. I completed my PhD in 2012 which focused on the connectivity and spatial structure of the scallop fishery around the Isle of Man, funded by the Isle of Man Government. The project involved surveys on the research vessel Prince Madog as well as collaboration with stakeholders including fishermen and processors. Work included population genetics of scallops around the Isle of Man and across the wider European range, statistical modelling of environmental and anthropogenic drivers of spatial variation in scallop reproductive status and modelling of the impact of hatchery reared scallop seed on wild populations.
Post-doctoral research at Bangor University (2012-2015 and 2019- present) has focused on inshore, data poor, shellfish fisheries across Wales, requiring active engagement with the fishing industry for collaborative data collection. All research aims are closely aligned with fisheries management and policy evidence requirements in order to deliver meaningful research to impact sustainable fisheries management. A key framework for our sustainable fisheries research is to provide evidence for the management of key commercial fisheries within the Ecosystem Approach to Fisheries Management (EAFM), ensuring that single species approaches (such as stock assessment and single species reference points) are complemented with wider ecosystem evidence such as appropriate spatial scales, adjacent effects and long term effects.
I have also spent three years working as a fisheries scientist for a consultancy (2016-2019) where I worked on a range of projects including environmental baseline studies for energy developments, intertidal aquaculture developments and coastal realignment schemes. I have worked in collaboration with fishers and statutory conservation agencies to develop fisheries management plans for several order fisheries and to carry out annual stock status surveys on the fishery. I have also modelled the effect of river flow on salmonid up-stream migration including drought scenarios.
I am currently the project manager for the EMFF sustainable fisheries in Wales project. As well as project management I am the lead researcher for the component of the project using our long-standing relationships with the industry to develop innovative technology for maximising high quality, high resolution fishery-dependant data collection. In addition my current research is investigating the reproductive ecology of lobsters and how this can influence stock assessment and fishery management measures.
Grant Awards and Projects
EFF funded "Sustainable use of fisheries resources in Welsh waters" - lead role in application for £300K for an 18 month extension to the project. (2013-2015)
EMFF funded "Fisher-Scientist collaboration" - during an NRN grant writing fellowhsip I developed the grant proposal capturing £1.2m in funding for this 4 year project. (2019-2022)
EMFF funded "Video and electronic fisheries data collection" - during and NRN grant writing fellowship I wrote the grant proposala capturing £140K in funding for the 2 year project. (2019-2021)
EMFF funded "Bass and Ray ecology in Liverpool Bay". This project extends the Welsh bass and ray science across the political boundary into north west English waters. £86K (2019-2020).
Welsh Government Marine Evidence Framework Agreement "Standardised stock assessment survey for whelk fisheries". £11,000 (2020)
Other
I am a member of the UK whelk management group and Crab and Lobster management group, providing scientific input alongisde scientists from CEFAS and Scotland. The group is a multi-stakholder group with representivies from industry, DEFRA, Welsh Government, Seafish and academia.
I sit on the ICES working groups for crab, lobster and scallop.
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Collaborations and top research areas from the last five years
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Addressing scientific uncertainty in marine crustacean fisheries stock assessment and management
Goto, D., Phillips, E., Phillips, G. A. C., Zimmermann, F., Carleton, L. & Hold, N., 9 Feb 2026, In: Reviews in Fish Biology and Fisheries. 36, 35.Research output: Contribution to journal › Review article › peer-review
Open AccessFile5 Downloads (Pure) -
Non-stock drivers of brown crab nad European lobster fisheries in Englnad and Wales
Hold, N., Phillips, E., Heney, C. & Morris-Webb, L., 2026, 52 p.Research output: Book/Report › Other report
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Scallop Assessment Working Group (WGSCALLOP; outputs from 2025 meeting)
Hold, N. & Bloor, I., 10 Feb 2026, 5 ed. ICES Scientific Reports. 113 p.Research output: Book/Report › Commissioned report › peer-review
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Commercial pot selectivity for European lobster, Homarus gammarus, estimated through a novel v-notching mark-recapture approach
Heney, C., Gross, J., Hoenig, J. & Hold, N., 1 Feb 2025, In: Fisheries Research. 282, 107283.Research output: Contribution to journal › Article › peer-review
Open Access -
Defining and developing an enforceable method to determine a soft-shelled crab
Holding, P., Stewart, J., Clark, S. & Hold, N., 20 Jan 2025, 56 p.Research output: Book/Report › Other report
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CEFAS FMP delivery - 110 Pot Fisheries Data collection
Hold, N. (PI)
1/07/24 → 31/08/25
Project: Research
Activities
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ICES Scallop Assessment Working Group
Hold, N. (Speaker) & Bloor, I. (Chair)
7 Oct 2025 → 9 Oct 2025Activity: Participating in or organising an event › Participation in Academic workshop, seminar, course
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Wild Oysters Project: Celebrating International Women and Girls in Science Day.
Parry, R. (Organiser), Hayden-Hughes, M. (Organiser), Hold, N. (Speaker), Lenn, Y.-D. (Speaker), Lee, H. (Speaker), Jones, A. (Speaker) & Perrott, N. (Organiser)
28 Feb 2025Activity: Participating in or organising an event › Participation in Academic workshop, seminar, course
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Seafood Innovation Conference
Heney, C. (Participant), Elson, C. (Participant), Wilday, S. (Participant) & Hold, N. (Speaker)
25 Feb 2025 → 26 Feb 2025Activity: Participating in or organising an event › Participation in Academic workshop, seminar, course
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Future Marine Research Infrastructure Grand Challenges
Austin, M. (Participant), Van Landeghem, K. (Organiser), Hold, N. (Participant) & Rippeth, T. (Participant)
11 Dec 2024Activity: Participating in or organising an event › Participation in Academic workshop, seminar, course
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Crab and Lobster Advisory Working Group (Wales) (External organisation)
Hold, N. (Member)
29 Oct 2024 → 2026Activity: Membership › Membership of committee
Thesis
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An investigation into the spatial scales of genetic and reproductive variation in the scallop Pecten maximus L.
Hold, N. (Author), Beaumont, A. (Supervisor), Jan 2012Student thesis: Doctor of Philosophy
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