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Dr Cosima Porteus

Dr Cosima Porteus

Postdoctoral Fellow

 Geoffrey Pope Old Stores

 

Geoffrey Pope Building, University of Exeter , Stocker Road, Exeter, EX4 4QD, UK

I am a fish physiologist and I’m interested in how fish sense, interact with and respond to their environment, linking environmental changes or challenges to whole animal physiology, behaviour and ecology.  My early work has focused on the effects of low oxygen (hypoxia) on the cardio-respiratory responses of fish and its effects on development. This has sparked an interest in the neural control of breathing in fish.  My PhD focused on the roles of oxygen chemoreceptors in the response to hypoxia in both water and air breathing fish. During my postodoctoral work I have been studying the effects of climate change on fish physiology, particularly the effects of ocean acidification on olfaction (under the supervision of Dr. Rod Wilson) and sound detection (involves a close collaboration with Dr. Steve Simpson, an expert in the effects of anthropogenic noise on fish). In my current work I have discovered a new physiological mechanism for how ocean acidification affects the behaviour of fish.

Broad research specialisms:

  • Fish olfaction
  • Fish behaviour
  • Ocean acidification
  • Oxygen sensing
  • Immunohistochemistry
  • Respiratory physiology
  • Hypoxia
  • Fish and amphibian development

Qualifications

2006-2012 PhD, Zoology, University of British Columbia, British Columbia
2004-2006 MSc, Interative Biology, University of Guelph, Ontario
2000-2004 BSc (Hon with distinction), Marine and Freshwater Biology, University of Guelph, Ontario

Career

2018 - present  Postdoctoral fellow funded by BBSRC FLIP, University of Exeter

2015 - 2018      Natural Sciences and Engineering Research Council (NSERC) of Canada Postdoctoral Fellow, University of Exeter

2013 - 2015      Royal Sciety Newton International Fellow, University of Exeter

Research

Research projects

Anthropogenic factors have contributed significantly to an increase in greenhouse gas emissions, including carbon dioxide (CO2). The amount of CO2 in the atmosphere has increased in the last 50 years and it is predicted that it will continue to do so in a business as usual scenario. The oceans absorb about a quarter of the total CO2 released into the atmosphere and this consequently leads to ocean acidification. Recent studies have shown that both temperate and coral reef fish raised in seawater conditions predicted for the year 2100 acquire serious olfactory impairments. However, the physiological mechanisms behind this impairment remain largely unknown.

Using a combination of behavioural experiments, nerve recording and high throughput sequencing, I have recently shown that elevated carbon dioxide affects the olfactory system of European sea bass (manucript accepted). I am currently continuing to investigate the mechanisms by which ocean acidification affects the sense of smell in fish. My current project has far-reaching impacts and applications from marine conservation to commercial and recreational fisheries.

Research grants

  • 2015 NSERC of Canada
    Post doctoral Fellowship: An electrophysiological approach to unravelling mechanisms of olfactory impairment caused by ocean acidification in marine fish
  • 2013 Association of European Marine Biological Laboratories
    On-site Access grant: Physiological mechanisms of olfactory impairment due to ocean acidification in European sea bass
  • 2012 AXA Research Fund
    Starting Grant: Predicting climate change risks for commercial fisheries and aquaculture using genetic and physiological approaches in early life stages of fish
  • 2012 The Royal Society
    Newton International Fellowship: Physiological mechanisms behind ocean acidification-induced olfactory impairment in fish

Key publications | Publications by category | Publications by year

Key publications


Poulton DA, Porteus CS, Simpson SD (2016). Combined impacts of elevated CO 2 and anthropogenic noise on European sea bass ( Dicentrarchus labrax ). ICES Journal of Marine Science: Journal du Conseil, fsw003-fsw003. Full text.
Porteus CS, Pollack J, Tzaneva V, Kwong RWM, Kumai Y, Abdallah SJ, Zaccone G, Lauriano ER, Milsom WK, Perry SF, et al (2015). A role for nitric oxide in the control of breathing in zebrafish (Danio rerio). J Exp Biol, 218(Pt 23), 3746-3753. Abstract.  Author URL.
Perry S, Kumai Y, Porteus CS, Porteus CS, Tzaneva V, Kwong RWM (2015). An emerging role for gasotransmitters in the control of breathing and ionic regulation in fish. Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology, 1-15. Abstract.
Porteus CS, Wright PA, Milsom WK (2014). The effect of sustained hypoxia on the cardio-respiratory response of bowfin Amia calva: implications for changes in the oxygen transport system. J Fish Biol, 84(3), 827-843. Abstract.  Author URL.
Porteus CS, Abdallah SJ, Pollack J, Kumai Y, Kwong RWM, Yew HM, Milsom WK, Perry SF (2014). The role of hydrogen sulphide in the control of breathing in hypoxic zebrafish (Danio rerio). J Physiol, 592(14), 3075-3088. Abstract.  Author URL.

Publications by category


Journal articles

Porteus CS, Hubbard PC, Uren Webster TM, van Aerle R, Canário AVM, Santos EM, Wilson RW (2018). Near-future CO<inf>2</inf>levels impair the olfactory system of a marine fish. Nature Climate Change, 8(8), 737-743. Abstract.
Poulton DA, Porteus CS, Simpson SD (2016). Combined impacts of elevated CO 2 and anthropogenic noise on European sea bass ( Dicentrarchus labrax ). ICES Journal of Marine Science: Journal du Conseil, fsw003-fsw003. Full text.
Porteus CS, Pollack J, Tzaneva V, Kwong RWM, Kumai Y, Abdallah SJ, Zaccone G, Lauriano ER, Milsom WK, Perry SF, et al (2015). A role for nitric oxide in the control of breathing in zebrafish (Danio rerio). J Exp Biol, 218(Pt 23), 3746-3753. Abstract.  Author URL.
Perry S, Kumai Y, Porteus CS, Porteus CS, Tzaneva V, Kwong RWM (2015). An emerging role for gasotransmitters in the control of breathing and ionic regulation in fish. Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology, 1-15. Abstract.
Kumai Y, Porteus CS, Kwong RWM, Perry SF (2015). Hydrogen sulfide inhibits Na+ uptake in larval zebrafish, Danio rerio. Pflugers Arch, 467(4), 651-664. Abstract.  Author URL.
Porteus CS, Wright PA, Milsom WK (2014). Characterisation of putative oxygen chemoreceptors in bowfin (Amia calva). J Exp Biol, 217(Pt 8), 1269-1277. Abstract.  Author URL.
Porteus CS, Wright PA, Milsom WK (2014). The effect of sustained hypoxia on the cardio-respiratory response of bowfin Amia calva: implications for changes in the oxygen transport system. J Fish Biol, 84(3), 827-843. Abstract.  Author URL.
Porteus CS, Abdallah SJ, Pollack J, Kumai Y, Kwong RWM, Yew HM, Milsom WK, Perry SF (2014). The role of hydrogen sulphide in the control of breathing in hypoxic zebrafish (Danio rerio). J Physiol, 592(14), 3075-3088. Abstract.  Author URL.
Porteus CS, Wright PA, Milsom WK (2014). Time domains of the hypoxic cardio-respiratory response in bowfin (Amia calva). Respir Physiol Neurobiol, 192, 118-127. Abstract.  Author URL.
Porteus CS, Brink DL, Coolidge EH, Fong AY, Milsom WK (2013). Distribution of acetylcholine and catecholamines in fish gills and their potential roles in the hypoxic ventilatory response. Acta Histochem, 115(2), 158-169. Abstract.  Author URL.
Porteus C (2013). EXCEPTIONAL HEAVY METAL TOLERANCE IN FISH. Journal of Experimental Biology, 216(23), iv-iv.
Porteus C (2013). HIGH-FLYING GEESE: HOW HIGH IS HIGH?. Journal of Experimental Biology, 216(5), iv-iv.
Porteus C (2013). ROOT HAEMOGLOBINS BENEFIT FISH ON ACID. Journal of Experimental Biology, 216(17), v-v.
Porteus C (2013). SEEING WHAT FISH THINK. Journal of Experimental Biology, 216(11), iv-iv.
Lim JE, Porteus CS, Bernier NJ (2013). Serotonin directly stimulates cortisol secretion from the interrenals in goldfish. Gen Comp Endocrinol, 192, 246-255. Abstract.  Author URL.
Bianchini K, Tattersall GJ, Sashaw J, Porteus CS, Wright PA (2012). Acid water interferes with salamander-green algae symbiosis during early embryonic development. Physiol Biochem Zool, 85(5), 470-480. Abstract.  Author URL.
Porteus C (2012). BATS CAN HAVE THEIR CAKE AND EAT IT. Journal of Experimental Biology, 215(5), v-vi.
Porteus C (2012). GABAZINE HELPS CLOWNFISH COME TO THEIR SENSES. Journal of Experimental Biology, 215(11), v-v.
Porteus CS, Brink DL, Milsom WK (2012). Neurotransmitter profiles in fish gills: putative gill oxygen chemoreceptors. Respir Physiol Neurobiol, 184(3), 316-325. Abstract.  Author URL.
Porteus C (2012). SENSORY ORGAN DISCOVERY DEMYSTIFIES RORQUAL WHALE FEEDING. Journal of Experimental Biology, 215(19), iv-iv.
Porteus C, Hedrick MS, Hicks JW, Wang T, Milsom WK (2011). Time domains of the hypoxic ventilatory response in ectothermic vertebrates. Journal of Comparative Physiology B, 181(3), 311-333.
Coolidge EH, Ciuhandu CS, Milsom WK (2008). A comparative analysis of putative oxygen-sensing cells in the fish gill. Journal of Experimental Biology, 211(8), 1231-1242. Abstract.
Ciuhandu CS, Wright PA, Goldberg JI, Stevens ED (2007). Parameters influencing the dissolved oxygen in the boundary layer of rainbow trout (Oncorhynchus mykiss) embryos and larvae. Journal of Experimental Biology, 210(8), 1435-1445. Abstract.
Ciuhandu CS, Stevens ED, Wright PA (2005). The effect of oxygen on the growth of Oncorhynchus mykiss embryos with and without a chorion. Journal of Fish Biology, 67(6), 1544-1551. Abstract.

Publications by year


2018

Porteus CS, Hubbard PC, Uren Webster TM, van Aerle R, Canário AVM, Santos EM, Wilson RW (2018). Near-future CO<inf>2</inf>levels impair the olfactory system of a marine fish. Nature Climate Change, 8(8), 737-743. Abstract.

2016

Poulton DA, Porteus CS, Simpson SD (2016). Combined impacts of elevated CO 2 and anthropogenic noise on European sea bass ( Dicentrarchus labrax ). ICES Journal of Marine Science: Journal du Conseil, fsw003-fsw003. Full text.

2015

Porteus CS, Pollack J, Tzaneva V, Kwong RWM, Kumai Y, Abdallah SJ, Zaccone G, Lauriano ER, Milsom WK, Perry SF, et al (2015). A role for nitric oxide in the control of breathing in zebrafish (Danio rerio). J Exp Biol, 218(Pt 23), 3746-3753. Abstract.  Author URL.
Perry S, Kumai Y, Porteus CS, Porteus CS, Tzaneva V, Kwong RWM (2015). An emerging role for gasotransmitters in the control of breathing and ionic regulation in fish. Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology, 1-15. Abstract.
Kumai Y, Porteus CS, Kwong RWM, Perry SF (2015). Hydrogen sulfide inhibits Na+ uptake in larval zebrafish, Danio rerio. Pflugers Arch, 467(4), 651-664. Abstract.  Author URL.

2014

Porteus CS, Wright PA, Milsom WK (2014). Characterisation of putative oxygen chemoreceptors in bowfin (Amia calva). J Exp Biol, 217(Pt 8), 1269-1277. Abstract.  Author URL.
Porteus CS, Wright PA, Milsom WK (2014). The effect of sustained hypoxia on the cardio-respiratory response of bowfin Amia calva: implications for changes in the oxygen transport system. J Fish Biol, 84(3), 827-843. Abstract.  Author URL.
Porteus CS, Abdallah SJ, Pollack J, Kumai Y, Kwong RWM, Yew HM, Milsom WK, Perry SF (2014). The role of hydrogen sulphide in the control of breathing in hypoxic zebrafish (Danio rerio). J Physiol, 592(14), 3075-3088. Abstract.  Author URL.
Porteus CS, Wright PA, Milsom WK (2014). Time domains of the hypoxic cardio-respiratory response in bowfin (Amia calva). Respir Physiol Neurobiol, 192, 118-127. Abstract.  Author URL.

2013

Porteus CS, Brink DL, Coolidge EH, Fong AY, Milsom WK (2013). Distribution of acetylcholine and catecholamines in fish gills and their potential roles in the hypoxic ventilatory response. Acta Histochem, 115(2), 158-169. Abstract.  Author URL.
Porteus C (2013). EXCEPTIONAL HEAVY METAL TOLERANCE IN FISH. Journal of Experimental Biology, 216(23), iv-iv.
Porteus C (2013). HIGH-FLYING GEESE: HOW HIGH IS HIGH?. Journal of Experimental Biology, 216(5), iv-iv.
Porteus C (2013). ROOT HAEMOGLOBINS BENEFIT FISH ON ACID. Journal of Experimental Biology, 216(17), v-v.
Porteus C (2013). SEEING WHAT FISH THINK. Journal of Experimental Biology, 216(11), iv-iv.
Lim JE, Porteus CS, Bernier NJ (2013). Serotonin directly stimulates cortisol secretion from the interrenals in goldfish. Gen Comp Endocrinol, 192, 246-255. Abstract.  Author URL.

2012

Bianchini K, Tattersall GJ, Sashaw J, Porteus CS, Wright PA (2012). Acid water interferes with salamander-green algae symbiosis during early embryonic development. Physiol Biochem Zool, 85(5), 470-480. Abstract.  Author URL.
Porteus C (2012). BATS CAN HAVE THEIR CAKE AND EAT IT. Journal of Experimental Biology, 215(5), v-vi.
Porteus C (2012). GABAZINE HELPS CLOWNFISH COME TO THEIR SENSES. Journal of Experimental Biology, 215(11), v-v.
Porteus CS, Brink DL, Milsom WK (2012). Neurotransmitter profiles in fish gills: putative gill oxygen chemoreceptors. Respir Physiol Neurobiol, 184(3), 316-325. Abstract.  Author URL.
Porteus C (2012). SENSORY ORGAN DISCOVERY DEMYSTIFIES RORQUAL WHALE FEEDING. Journal of Experimental Biology, 215(19), iv-iv.

2011

Porteus C, Hedrick MS, Hicks JW, Wang T, Milsom WK (2011). Time domains of the hypoxic ventilatory response in ectothermic vertebrates. Journal of Comparative Physiology B, 181(3), 311-333.

2008

Coolidge EH, Ciuhandu CS, Milsom WK (2008). A comparative analysis of putative oxygen-sensing cells in the fish gill. Journal of Experimental Biology, 211(8), 1231-1242. Abstract.

2007

Ciuhandu CS, Wright PA, Goldberg JI, Stevens ED (2007). Parameters influencing the dissolved oxygen in the boundary layer of rainbow trout (Oncorhynchus mykiss) embryos and larvae. Journal of Experimental Biology, 210(8), 1435-1445. Abstract.

2005

Ciuhandu CS, Stevens ED, Wright PA (2005). The effect of oxygen on the growth of Oncorhynchus mykiss embryos with and without a chorion. Journal of Fish Biology, 67(6), 1544-1551. Abstract.

Cosima_Porteus Details from cache as at 2018-10-19 21:41:47

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Administrative responsibilities

2017 – present       Early Career Researcher Lead, Research and Impact Committee, University of Exeter

2016 – 2017           Early Career Researcher Lead, Biosciences Equality, Diversity and Inclusivity Committee, University of Exeter

2014 – 2015           Committee member, Biosciences Athena Swan Committee (promoting women in science), University of Exeter

Became an Associate Fellow of the Higher Education Academy on 15/07/2015

Teaching experience:

2014 - 2017      Guest lecturer, University of Exeter, Biosciences, Undergraduate courses: Animals (BIO1331); Animal Ecophysiology (BIO2082); Current Issues in Marine Biology (BIO3083)

2012                 Lecturer, University of British Columbia, Department of Zoology; Graduate course: Advanced Comparative Physiology Seminar (ZOOL 503)

2011                 Part-time lecturer, University of British Columbia, Department of Zoology, Undergraduate course: Developmental Biology (BIOL 331)

2010 – 2011     Lab co-ordinator, University of British Columbia, Department of Zoology; Undergraduate course: Developmental Biology (BIOL 331)

2006 – 2012    Teaching Assistant/demonstrator, University of British Columbia, Department of Zoology, Undergraduate courses:  Introductory Biology (1st year); Vertebrate Physiology (3rd year); Comparative Vertebrate Zoology (2nd year), Developmental Biology (3rd year)

2005                Guest Lecturer, University of Guelph, Department of Molecular Biology and Genetics, Molecular biology and genetics of development (MBG 4030)

2004 - 2006    Teaching Assistant/demostrator, University of Guelph, Department of Integrative Biology, Undergraduate courses:  Vertebrate Structure and Function (2nd year), Developmental Biology (2nd year)

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