World Aquaculture 2021

May 24 - 27, 2022

Mérida, Mexico

RESEARCH AND DEVELOPMENT OF TROPICAL SEAWEED AQUACULTURE TECHNIQUES AND BEST MANAGEMENT PRACTICES ACROSS MULTIPLE SITES IN THE CARIBBEAN

 

Loretta Roberson*, David Bailey, Cliff A. Goudey, Gretchen S. Grebe, Hauke Kite-Powell, Scott Lindell, Domenic Manganelli, Michael Marty-Rivera, Crystal Ng, Charles Yarish,

 

 Marine Biological Laboratory

 7 MBL St.

 Woods Hole, MA 02543

 lroberson@mbl.edu

 



 The Caribbean’s small countries and island nations are experiencing a loss of resources due to climate change, nutrient pollution, ocean acidification, seagrass bed habitat loss, fishing pressure, and lost tourism revenues due to COVID-19. W ell-managed development and growth of tropical seaweed aquaculture in the region may help to assuage  these issues while also providing a new source of seaweed biomass for the existing carrageenan, new food and textile and possibly future biofuel markets. We are exploring the opportunities for expanded seaweed aquaculture in the Caribbean

 and the Gulf of Mexico in collaboration with partners at 15 institutions and research sites in Puerto Rico, Florida, and Belize. Together we are prototyping cultivation systems that

 allow farms to be deployed in offshore areas, creating  tools to mechanize seeding and harvesting, assessing the environmental impacts of these farm systems, characterizing the growth and composition of tropical algae in  near and  offshore environments, and conducting economic and life cycle analyses of macroalgal aquaculture systems in this region.

F indings from these efforts will  be tailored to the conditions in the Caribbean  and The Gulf of Mexico and be adaptable for other locations with similar environmental threats or needs for alternative marine livelihoods.

 In this presentation

 we will explain how insight from our field research is being

combined with consultation from local stakeholders to

guide the development of Ecological Best Management Practices (BMP) for seaweed aquaculture in the  Gulf of Mexico  and  the Caribbean Sea . Our intention is that these ecological BMPs will support prospective seaweed farmers, resource managers, and buyers through  ecologically and socially responsible decision-making around seaweed aquaculture. Fostering sustainable

expansion of  Caribbean  and Gulf of Mexico macroalgal cultivation will encourage production in these regions to expand beyond  the  existing small-scale farms producing seaweed for artisanal beverage and cosmeceutical markets. Establishing l arger-scale farms in a responsible manner will enable production of

 algal  biomass  for  additional local and  global markets and

allow resource managers to consider seaweed farming as an extractive component of an integrated water quality  management strategy .