- PhD Candidate (part time). Otago University, 2010 – present
- PGDip (Wildlife Management). Otago University, 2006
- BSc (Ecology). Otago University, 2005
Role at Cawthron
Rasmus is a freshwater ecologist with the Coastal and Freshwater Group. He is involved in both research and commercial projects in the freshwater area. Rasmus' main area of expertise is recreational fisheries management and fish ecology and behaviour. He is also completing his PhD in ecology as a part-time student while working for Cawthron.
Technical skills, experience and interests
- Fish behaviour and ecology, with a focus on migration and recruitment patterns
- Application of traditional fishery monitoring techniques with more recently developed tools, such as fish ear bone (otolith) microchemical analysis of hard and soft body parts and bioenergetics growth modelling, to make inferences about life history strategies in different habitats
- Validation and development of the use of geochemical markers in otolith to identify migratory movements and natal areas of high importance to freshwater sports fish populations
- Fish life-history strategy, migration and evolutionary adaptations
- Fish passage investigation, monitoring and solutions
- Recreational fisheries management and survey techniques
- Natural resource management
- New Zealand Freshwater Sciences Society
- American Fisheries Society
Gabrielsson RM 2009. Evidence presented to the special tribunal hearing on behalf of Fish & Game New Zealand in respect of an application to amend the 1997 (Kawarau) Water Conservation Order with regards to the Nevis River.
- Gabrielsson RM 2015. Review of monitoring options and development of a otolith monitoring plan for Chinook salmon in the Lower Clutha River. Cawthron Report 2674. Prepared for Contact Energy Ltd. 44 pages plus appendix.
- Lange K, Townsend CR, Gabrielsson RM, Chanut PCM and Matthaei CD 2014. Responses of stream fish populations to farming intensity and water abstraction in an agricultural catchment. Freshwater Biology, 59(2), 286-299 DOI: 10.1111/fwb.12264 .
- Gabrielsson RM and Doehring KAM 2014. Tekapo Canal fish salvage project: Summary Report-January 2014. Cawthron Report 2523. Prepared for Genesis Energy. 20 pages plus appendices.
- Gabrielsson RM 2014. Forensic application of otolith microchemistry: identifying the probable source of an unauthorised introduction of Chinook salmon. Cawthron Report 2541. 9 pages. Prepared for Central South Island Fish & Game Council .
- Gabrielsson RM and Knight BR 2014. Natal origin and life time movement patterns of brown trout in the lower Waikato River. Cawthron Report 2585. Prepared for Auckland / Waikato Fish & Game Council. 37 pages plus appendix.
- Gabrielsson RM 2013. Growth modelling of Rainbow trout in the Ngaruroro River. Prepared for Glenn MacLean, Technically Trout.
- Gabrielsson RM and Doehring KAM 2013. Tekapo Canal fish salvage management plan 2014. Prepared for Genesis Energy. 18 pages plus appendices.
- Gabrielsson RM, Closs GP, Kim J, Reid MR, Stirling CH and Numata M 2012. Does the trace element composition of brown trout (Salmo trutta) eggs remain unchanged in spawning redds. J Fish Biol. 2012 Nov;81(6):1871-9.
- Jowett I, Hayes J, Berkett N and Gabrielsson RM 2012. Genesis Energy Limited - Tekapo Canal remediation works - Assessment of effects on aquatic ecology. Cawthron Report 2084. Prepared for Genesis Energy Limited. 48 pages plus appendix.
- Gabrielsson RM 2011. Satisfaction levels and angler use of backcountry fisheries in Otago. Annual internal technical reports for Fish & Game New Zealand.
- Gabrielsson RM, Closs GP and Seddon P 2011. Validation of relationships between ambient trace element concentration and otolith microchemistry in trout. Research report prepared for Fish & Game New Zealand.