Transnational R&D


Tagging fishing gears and enhancing on board best-practices to promote waste free fisheries

Principal Investigator
Team Leader

Marisa Almeida is a senior researcher at CIIMAR with ca. 140 international publications. With a PhD in Chemistry (obtained in 2003) her main research area is phytoremediation, participating actively in studies that aim to potentiate the use of these biotechnological tools as nature-based solutions to improve and recover aquatic environments contaminated with different pollutants. Her expertise is on environmental chemistry applied to coastal and estuarine environments and on phytoremediation of contaminants in natural and constructed wetlands for environmental recovery. She also actively participates in dissemination and communication activities in the frame of CIIMAR outreach projects on water and ocean literacy.

Co-Principal Investigator
Team Leader

I’m a biologist and the leader of the Fish Ecology and Sustainability research team. My primary research area is marine ecology, specifically concerning fish communities. I’m particularly interested in understanding how human activities, including marine litter and microplastics, impact ecosystems and their ability to provide services and societal benefits. In my research, I’ve been employing innovative approaches to leverage stakeholder knowledge, as Fishers Ecological Knowledge, and provide scientific support to environmental managers and decision-makers. Throughout my career, I’ve bridged the gap between science and society, advocating for stakeholder integration in science, fostering collaborative solutions for environmental issues, and promoting Ocean Literacy.


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NetTag project aims to reduce and prevent marine litter derived from fisheries, bringing together scientists, engineers and the fisheries industry.
NetTag approach combines two different types of preventive measures: (i) new technology to prevent lost gears; and (ii) awareness actions to promote best-practices for on-board waste management

NetTag will develop new technologies to track fishing gears in case gears got lost, fostering a reduction of lost gears. The technology will include low cost, miniature and environmental-friendly acoustic tags and acoustic transceivers for uniquely localization (with fisher’s personal ID) of lost gear and an automated-short-range robotic recovery system. Participant fishers will, then, evaluate the new technology in a dedicated demonstrative field action.

Awareness actions, developed by fishers for fishers, will be an innovative strategy to engage the fishing industry, increasing fishers’ willingness to act and adopt better practices on-board to reduce marine litter from fishing vessels. A major event entitled Clean Ocean Day will be organized, in which all fishers in that day will collect marine litter from the sea to have a snapshot of type and amount of marine litter present off NW Iberian Peninsula coast.

In parallel, the environmental impact and harmfulness of lost gear as pollutant of the marine environment (e.g. source of microplastics and pollutants absorbed to the gears), will be investigated through in-situ and laboratory experiments. We will also evaluate the cost-efficiency of the proposed solutions, estimating the economic viability of their implementation for reduction of marine litter derived from fisheries.

The project is based on synergistic activities between fishers and scientists to pilot innovative solutions to tackle the urgent need of reduction and prevention of marine litter. NetTag consortium is a multidisciplinary and international team, gathering researchers from natural (CIIMAR-Portugal), social (UAVR-Portugal) and economic (USC-Spain) sciences, engineers (INESC TEC-Portugal, UNEW-UK) and fisheries industry, including two fishers associations (APMSHM-Portugal and ARVI-Spain) and a fishing nets production company (EURONETE).

NetTag intends to contribute to the reduction of lost gear at NW Iberian Peninsula, promote technological innovation of fishing gears and better practices to avoid discarding litter, and also improve the environmental performance of Portuguese and Spanish fisheries.

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