Publication - Factsheet

Marine science: directory of scientists

Published: 23 Nov 2019

Details of scientists working for the Marine Scotland Directorate, with some supporting documents attached.

5 page PDF

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5 page PDF

54.0 kB

Marine science: directory of scientists
Dr Iain A Malcolm

5 page PDF

54.0 kB

Dr Iain A Malcolm

Telephone: +44 (0)131 244 2252


Marine Scotland, Freshwater Fisheries Laboratory, Faskally, Pitlochry, PH16 5LB, Scotland, UK

Research Interests

In broad terms, I am interested in understanding interactions between the freshwater environment and fish population dynamics. However, within this broad area of interest, particular interests currently include:

  • The influence of long-term environmental change on freshwater habitats
  • River temperature, processes, trends and influences on ecology
  • Relationships between water quality, fish production and growth
  • The influence of hydrology and hydraulics on salmonids
  • Acidification and recovery
  • Salmon population dynamics and management
  • The effects of stocking on salmon production
  • The influence of hyporheic zone processes on salmonid spawning success


I collaborate with a wide range of individuals in Government agencies (SEPA, SNH), fisheries trusts and universities. My primary academic collaborations are with staff at the Northern Rivers Institute ( at the University of Aberdeen; the School of Geography , Earth and Environmental Sciences ( at the University of Birmingham and those associated with the UK Upland Water Monitoring Network (

External Committees and Responsibilities

I represent MSS on the UK Freshwater Task Team (FTT) for Water Framework Directive (WFD) and also contribute towards the development of the Coordinated Agenda for Marine, Environment and Rural Affairs Science (CAMERAS) Monitoring Action Plan (MAP) for freshwater.

Most Recent Publications

  • Garner, G., I. Malcolm, J. Sadler, and D. Hannah (2014), What causes cooling water temperature gradients in forested stream reaches?, Hydrology and Earth System Sciences Discussions, 11(6), 6441-6472.
  • Garner, G., I. A. Malcolm, J. P. Sadler, C. P. Millar, and D. M. Hannah (2014), Inter‐annual variability in the effects of riparian woodland on micro‐climate, energy exchanges and water temperature of an upland Scottish stream, Hydrological Processes.
  • Malcolm, I., P. Bacon, S. Middlemas, R. Fryer, E. Shilland, and P. Collen (2014), Relationships between hydrochemistry and the presence of juvenile brown trout (Salmo trutta) in headwater streams recovering from acidification, Ecological Indicators, 37, 351-364.
  • Malcolm, I., C. Gibbins, R. Fryer, J. Keay, D. Tetzlaff, and C. Soulsby (2014), The influence of forestry on acidification and recovery: insights from long-term hydrochemical and invertebrate data, Ecological Indicators, 37, 317-329.
  • Monteith, D., C. Evans, P. Henrys, G. Simpson, and I. Malcolm (2014), Trends in the hydrochemistry of acid-sensitive surface waters in the UK 1988–2008, Ecological Indicators, 37, 287-303.


Marine Scotland
Mailpoint 11
1B South
Victoria Quay

0300 244 4000