Ryan S. Mohammed

Ph.D. Candidate

Contact Information

Department of Life Sciences
The University of The West Indies
St. Augustine, Trinidad and Tobago

Location:
Peter Bacon Laboratory, Natural Sciences Building

Tel: 1(868) 370-5695
Fax: 1(868) 663-5241

Send an e-mail

 

Education:
  • Ph.D. in Environmental Biology ,The University of the West Indies (UWI) January 2012- Present
  • M. Phil. Environmental Biology (2010): UWI. Thesis Title- ‘Investigation Of Factors Affecting The Prevalence Of Selected Parasites And Bacterial Pathogens On Three Species Of Freshwater Catfish Exported From Trinidad’
  • B.Sc. Zoology Major and Botany minor (2003).
Project Details:

 

Global Surface temperature projections predict 2 to 4 °C within 50 years. Less than 1% of all freshwater river systems are in Tropical regions. How will a 2°C to 4°C rise in surface temperature affect the ecology of tropical freshwater systems?

Trinidad and Tobago has 44 species of freshwater fish. There is a wide range of bacterial and invertebrate parasites on freshwater fish. For investigations into effects of temperature on the freshwater systems a model system was chosen-Guppy- Gyros’.

The Guppy is the most widely distributed fish worldwide, every continent except Antarctica. Its natural distribution includes Trinidad and Tobago as well as Venezuela, Guyana and Suriname. It has the highest fish population densities across both islands. The species forms the foundation of many picivorous food chains. It is an ideal species for evolutionary investigations due to its ubiquitous environmental habitats as well as quick population generation time.

Gyrodactylus turnbulli or Gyros are monogean, guppy ectoparasite.which has several modes of reproduction and transmission: both indirect and direct. Reproduction can occur via asexual, sexual and parthenogenesis. In their natural habitat, guppies are commonly parasitized by Gyrodactylus species, sometimes at prevalences of up to 75%.

How does an increase in water temperature affect the ecology of both organisms? Experiments in the project are designed to investigate fish behavior, parasite tolerance, parasite interactions and secondary bacterial infections of fish at elevated temperatures.

 

Work Experience:

Aquatic Ecologist Consultant:

  • Aquatic Biologist, Consultant: Mangrove Monitoring Plan for the Galeota Marine Terminal and Fish Landing Facility, National Energy Company of Trinidad and Tobago (NEC) (January 2010 to November 2011)
  • Aquatic Biologist, Senior Consultant/Team Leader: East Coast Renewal Project (ECR) Coastal Near shore and Inland Baseline Survey for British Petroleum Trinidad and Tobago (BPTT), Guayaguayare. Wet (November 2009) and dry season (April 2010) survey. (October 2010)
  • Aquatic Biologist Senior Consultant/Team Leader: Aquatic Faunal Survey in the North Western District, Petrotrin (October 2009).
  • Aquatic Biologist, Senior Consultant: Surveys and Assessment of Faunal Resources, Scott Quarry, Arima Valley. (May 2009)
  • Aquatic Biologist, Senior Consultant: Ecological Survey within the Mayaro-Guayaguayare Block, Canadian Superior Energy Inc. (January 2009).
  • Specialist Consultant (Marine Biology): Ecological and Biodiversity Assessment of Estuarine, Intertidal and Marine Environments at Point Lisas/Phoenix Park (Dry Season Report). (Including mangrove, river, coastal near shore and sea grass monitoring). NEC. (January 2009).
  • Specialist Consultant: Salybia Matura Water Project, Water and Sewerage Authority (WASA) of the Ministry of Public Utilities, (contracted under Royal Haskoning Caribbean Ltd.) (wet season, December 2008).
  • Aquatic Biologist: Aquatic faunal study (wet season) for Environmental Impact Assessment for Extension of the Chaguaramas Public Golf Course, Northwest, Trinidad. Chaguaramas Developmental Authority, (CDA). (November, 2008).
  • Aquatic Biologist Specialist Consultant (Ichthyology): Biodiversity Assessment of Estuarine, Intertidal and Marine Environments at Pointe-a-Pierre: Construction and Establishment of a Desalination Plant at Petrotrin’s Pointe-à-Pierre Refinery, Petroleum Company of Trinidad and Tobago Limited. (October 2008).
  • Aquatic Biologist: Establishment of Regional Wastewater Plants and Associated Networks at Malabar and Maloney, Arima. Water and Sewerage Authority of Trinidad and Tobago (October 2008).
  • Aquatic Biologist: Surveys and Assessment of Biological Environment, NGC Pipeline: Pointe-à-Pierre to Piarco National Gas Company (NGC), (contracted under Kaizen Ltd.) (October 2008)
  • Specialist Consultant: Salybia Matura Water Project, Water and Sewerage Authority (WASA) of the Ministry of Public Utilities, (contracted by Royal Haskoning Caribbean Ltd.) (dry season, August 2008).
  • Specialist Consultant (Marine Biology): Ecological and Biodiversity Assessment of Estuarine, Intertidal and Marine Environments at Point Lisas/Phoenix Park (Dry Season Report). NEC. (May 2008).
  • Consultant (Marine Biology): Eco-spatial and Biodiversity Assessment of Littoral, Wetland and Coastal Near shore Environments at Galeota Peninsula and Guayaguayare Bay, NEC. (May 2008).
  • Specialist Consultant (Ichthyology): Surveys and Assessment of Riverine Ecology of the Caparo River, WASA and the Ministry of Public Utilities (contracted by Royal Haskoning Caribbean Ltd.) (February 2008).
  • Specialist Consultant (Marine Biology): Ecological and Biodiversity Assessment of Estuarine, Intertidal and Marine Environments at Point Lisas/Phoenix Park. NEC (November 2007).
  • Specialist Consultant (Marine Biology): Moruga Fishing Port and Associated Facilities at Gran Chemin: Eco-Spatial and Biodiversity Assessment of Estuarine, Intertidal and Marine Environments at Moruga. Ministry of Works and Transport. (September 2007).
  • Aquaculture Researcher: Literature review and compilation of document: European Union’s (EU) Recommendations for Aquaculture Production, (Appendix 5, pages 75 to 80 of the National Tilapia Industry Development Plan). Tilapia Commodity Committee, Trinidad and Tobago. (September 2007).
  • Aquatic Biologist: Aquatic faunal study (dry season) for Environmental Impact Assessment for Extension of the Chaguaramas Public Golf Course, Northwest, Trinidad. CDA. (June, 2007).
  • Aquatic Biologist: Ecological Faunal Survey for an Environmental Impact Assessment of Central Block, Trinidad. British Gas, (BGTT), (contracted under Walsh Environmental, USA). (May 2007).
  • Specialist Consultant: Ecological Surveys for an Environmental Impact Assessment for the Construction and Operation of a Polyethylene Manufacturing Plant at the Point Lisas Industrial Estate Claxton Bay, Trinidad. Westlake (Trinidad) Unlimited. (November 2006).
  • Specialist Consultant: Comprehensive Ecological and Coastal Sensitivity Survey: Galeota Peninsula and Guayaguayare Bay, Southeast Trinidad. British Petroleum Trinidad and Tobago LLC (BP TT). (September 2006).
  • Specialist Consultant: Ecological Surveys for Proposed Highway Alignment: St. Mary’s Junction to Point Fortin, Southwest Trinidad. Phase II Report (Wet Season Surveys and Comparative Analysis). Ministry of Works and Transport. (October 2006).
  • Specialist Consultant: Ecological Surveys For Proposed Highway Alignment: St. Mary’s Junction to Point Fortin, Southwest Trinidad. Phase I Report (Literature Review and Dry Season Survey). Ministry of Works and Transport. (July 2006).
  • Specialist Consultant: Surveys and Assessment of Biological Environment: Proposed Mamoral Dam and Related Infrastructure, Carr Mamoral Trace, Caparo. National Infrastructure Development Company, (contracted under Royal Haskoning Caribbean Ltd.). (January 2006).
  • Specialist Consultant: Baseline Ecological Assessment for Proposed Highway Alignment from San Fernando to Princes Town, South Trinidad. Ministry of Works and Transport. Ministry of Works and Transport. (January 2006).
  • Project Scientist: Natural Ecology Baseline Assessment: Literature Review and Ground-truthing Surveys for Point Fortin West Site, Cap-de-Ville. NEC. (December 2004 and May 2006).
  • Fish Biologist: Aspects of the Biodiversity of Guayaguayare Bay, Southeast Trinidad. BP Trinidad and Tobago LLC. (January 2004).
Academic Work Experience:
  • September 2012- June 2013: Final Year students’ project Co-Supervision, ‘Trials on Growth rate of Red Hybrid and Nile Tilapia’, (Diploma in Agriculture), The Eastern Caribbean Institute of Agriculture and Forestry (ECIAF).
  • June 2012, June 2013: Guest Presenter for FOUN1210; Science, Medicine and Technology in Society, B. Ed. Programme, Faculty of Humanities and Education, UWI: Topic- Science, Theory, Philosophy and Practical Issues.
  • January 2012- May 2012: Teaching Assistant: (i) BIOL2062, Freshwater Biology (ii) BIOL2761 Plant Physiology
  • 2006 - 2012: Demonstrator and Research Collaborator, with Cardiff University, UK for Undergrad Field Course in Reef Ecology, Charlotteville Tobago (June).
  • June 2009 - 2010: Demonstrator, Hull University, UK for Undergrad Field Course in Reef Ecology, Charlotteville Tobago.
  • September 2003 – July 2008: Demonstrator and Tutor, Department of Life Sciences, FSA, UWI: (i) Animal Diversity (Year I), (ii) Microbiology (Year II), (iii) Tropical Aquaculture (Year III), (iv) Fisheries and Marine Ecology (Year II), (v) Freshwater biology (Year II). Assisted with final year supervision projects: courses on aquatic ecology and micro-biological studies, correcting of examination scripts.
 Other Work Experience:
  • Vice - President, April 28th 2012 – Present: Aquaculture Association of Trinidad and Tobago Multi-service Co-operative Society Limited (aQua-TT MCSL).
  • Internal Verifier, August 2010 – August 2011, March 2012 – October 2012: Inland Aquaculture Operations (Tilapia Production) Level 1 CVQ, Re-training Programme (Cycle 22, 24 and 25), MSTTE.
  • Manager, June - August 2002: Bamboo Grove Fish Farm, Trinidad (hatchery, nursery and grow out facility for, Hoplosternum littorale (‘Cascadura’), Oreochromis niloticus (Silver or Nile Tilapia) and Red Tilapia Hybrid.
 Committees:
  • August 2013 - Present: Committee member, Cascadura and Black River Conch Moratorium Committee, Fisheries Division, Ministry of Food Production.
  • May 2013 – August 2013: Aquaculture Representative / aQua-TT representative, Skills and Productivity Thematic Working Group of the Trinidad and Tobago Chapter of the Caribbean Growth Forum (CGF), Ministry of Planning.
  • April 12th 2012: Interview Panel Member for Agricultural Professional Development Programme (APDP) for Aquaculture. Ministry of Food Production, Land and Marine Affairs.
  • February 2012- Present: Vice Chairman of Tilapia Commodity Task Force (appointed by Permanent Secretary of Ministry of Food Production, Land and Marine Affairs).
  • September 2011- September 2012: Aquaculture Representative on Livestock Association of the Trinidad and Tobago Agri-business Association (TTABA).
  • June 2011 – June 2012: Member of Aquaculture Committee- Industry Development, Chaired by the Permanent Secretary of the Ministry of Food Production, Land and Marine Affairs.
  • January 2011 – August 2011: Member of Aquaculture Committee- Construction of Standards for Aquaculture Caribbean Vocational Qualification (CVQ) Level 1, 2 and 3 for the National Training Agency (NTA).
  • October 2010 – June 2011: Member of Fish and Fish Processing Sector Advisory Committee (SAC), (Research sub-committee) for NTA (Aquaculture Association of Trinidad and Tobago (aQua-TT) representative).
  • 9th September 2010- Present: Member of the Freshwater working group of the Steering Committee for the Management of Invasive Alien Species (IAS) (under Fisheries Division - Ministry of Food Production, Land and Marine Affairs).
Voluntary Work:
  • January 2011 –Present: Cataloguing and identification of the Percharde Mollusc Collection at the Pointe-A-Pierre Wildfowl Trust.
  • March 2009: Member of the aQua-TT technical advisory team, Pt. Coco Community Co-operative Society Limited, Aquaculture Project.
  • September 2002 - November 2003: Technical assistant, Bamboo Grove Fish Farm.
Publications:
Google Scholar
Researchgate
 
Magazines
  • The Allure of the Cascadu: culture, legend, cuisine and conservation. (Writing, submitting to Caribbean Gourmet).
  • Aliens in our waters. Stop Invasion of Alien Species (CABI and GEF Promotion magazine) September 2012, pg 27.
  • Let the Crabs Run! Caribbean Gourmet. Caribbean Gourmet. Caribbean Gourmet Ltd. July –September 2012, pg 30 to 32.
  • Malaysian Prawns and Australian Red Claw Crayfish: Aquaculture’s answer to the dwindling shrimp and lobster stocks of the Caribbean. Caribbean Gourmet. Caribbean Gourmet Ltd. January -March 2012, pg 18 to 19.
  • The Diversity of the Caribbean Fish Fry. Caribbean Gourmet. Caribbean Gourmet Ltd. September-October 2011, pg 24 to 26.
  • Aquaculture in the Caribbean- Is it needed? Caribbean Gourmet. Caribbean Gourmet Ltd. May-July 2011, pg 24 to 28.
Organisation Memberships:
  • American Tilapia Association (ATA) (December 2010- Present)
  • The Pointe-A-Pierre Wildfowl Trust (December 2010- Present)
  • British Society of Parasitologist (BSP) (November 2009 - Present)
  • Student fellow of Zoological Society of London (ZSL) (October 2008 - Present)
  • Associate member of Fisheries Society of the British Isles (FSBI), (January 2008 -Present)
  • The Association of Professional Agricultural Scientists (APASTT), (January 2011- Present)
  • Trinidad and Tobago Field Naturalists’ Club (March 2007 – March 2008).
  • Environment Tobago (June 2006 - Present).
  • Executive member of aQua-TT (September 2003- Present)
  • The National Trust of Trinidad and Tobago. (Lifetime member from January 2011)
 

Revised: 27 January 2017

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