kristy.ramnarine@cnc3.co.tt
A National Sargassum Management Policy is currently being developed by the National Sargassum Task Force (NSTF), which was appointed to deal with the threats of the gulfweed in July 2024.
In a joint article on the continuous issue, Deputy director of Research at the Institute of Marine Affairs (IMA) Dr Rahanna Juman and committee member Aquatic Ecologist Dr Ryan S Mohammed said the policy would seek to encourage meaningful collaboration and communication among key stakeholders at all levels and throughout the process, from early warning to public education and awareness.
Large mounds of sargassum are once again covering T&T’s shores affecting the enjoyment of its beaches and impacting the country’s turtle nesting season.
From Matura to Moruga to Speyside in Tobago, “golden tides” are washing ashore.
The NSTG said these unprecedented, massive, episodic influxes of floating sargassum inundating T&T’s coastlines were first observed in 2011.
Since then, the seaweed has had significant negative impacts, particularly on coastal communities and livelihoods, public health, tourism, turtle nesting and fisheries.
“Researchers suggest these blooms are fuelled by a combination of factors, including altered ocean currents, warming ocean temperatures associated with climate change, and increased nutrient availability,” Juman and Mohammed jointly said.
“These issues, if left unchecked, are likely to continue supporting significant sargassum events into the future according the 2021 UN Environment Programme report.”
According to a recent CNN report, University of South Florida Research Assistant Professor Brian Barnes revealed that this year is already a record for the amount of Sargassum in the central Atlantic Ocean.
“What we observed in April was far and away greater than anything the satellites have recorded over the last 25 years and presumably ever as far as what would be expected,” Barnes said.
Barnes is part of the small team using satellites to monitor sargassum. USF’s College of Marine Science Optical Oceanography Laboratory maintains the Sargassum Watch System, an outlook on current and future seaweed blooms in the Caribbean Sea and Gulf, using a suite of satellite data from NASA, NOAA and private satellites.
The annual mass influxes of sargassum into the Caribbean Sea though unpredictable in volume and trajectory, are now being considered as the ‘new normal’, requiring sustainable management responses and long-term adaptation.
T&T is among five Caribbean countries participating in the Japanese funded regional project executed by the UNDP which aims to enhance national capacity for the management of sargassum by providing countries with equipment, expertise, and technical knowledge to collect, remove, transport, and dispose of this recurring threat.
Further support will also be provided through relevant gender responsive training and capacity development programmes.
Locally, there was extensive stakeholder engagement and two pilot sites were selected to trial the equipment being procured to remove sargassum—Guayaguayare in south Trinidad and Speyside in Tobago.
Onshore equipment includes light weight tractors, dump trucks, machine surface rakes, conveyor, and mini-All Terrain Vehicle) while nearshore equipment includes barrier boom, work boats, aquatic conveyor
“The NSTG will act as a national, inter-agency co-ordination mechanism for the implementation of Sargassum Response for Trinidad and Tobago,” Dr Juman and Dr Mohammed added.
“In doing so, the Task Force will offer guidance and assistance to Regional Corporations of the Ministry of Rural Development and Local Government, the Tobago House of Assembly and other support agencies that serve as the first responders for clean-up efforts, and will ensure alignment with the national response framework.
“This is to ensure that the sargassum invasion is managed and addressed in a timely and efficient manner, that information is disseminated among all relevant stakeholders and that negative impacts are either prevented or minimised.”
Additionally, the NSTF will provide oversight over the development of a research and monitoring agenda that will facilitate improvement in managing the impacts of future occurrences of this natural disaster and inform the handling, disposal, storage, and utilisation of Sargassum products.
To do this, they will liaise with local and international research institutions and private sector and advise accordingly.
“Sargassum is now being transformed from ‘waste to wealth’, as there are many initiatives to valorise this seaweed into products such as bio-stimulants, emulsifiers, fucoidants, alginates, bio-leather, 3-D molded objects for counter tops, animal feed, bioplastic, and biogas,” the article added.
“For this, we require cohesive policies and legislation, both nationally and regionally, which address the different stages along the value chain including collection, storage, valorisation, and commercialisation.”
The NSTF said it will work with the Inter-Ministerial Integrated Coastal Zone Management Committee to ensure there are cohesive policies and plans to manage sargassum along our coastlines.
National Sargassum Task Force (NSTF)
Chair - Dr Rahanna Juman, Deputy Director of Research of the IMA
The other members are:
Marcia Tinto of the EMA
Mr Ricardo Mieux, Ministry of Agriculture, Land and Fisheries;
Renelle Bernard Brown, Ministry of Works and Transport
Curmira Gulston, Ministry of National Security
Linford Beckles, Tobago House of Assembly (THA)
Suzan Lakhan-Baptiste, Nature Seekers
Dr Ryan Mohammed, Aquatic Ecologist
Barry Lovelace, Council of Presidents of the Environment