Proposals are expected to address all following activities:

• Establishment of a Marine Citizen Science network

The pan-European Marine Citizen Science data network is expected to bring together actors in marine citizen science data collection domains in the European Union and in neighbouring countries and to build a sense of community between these actors, engaging and coordinating different type of organisations. The core aim of the network will be to support its participants to contact the various marine citizen science data collection communities efficiently and in a manner that will increase the added value of their contribution towards Marine Knowledge. The network should aim to include actors from all different data fields on marine citizen science.

A key activity for the establishment of the network consists in the identification, mapping and involvement of the different actors that provide observation and data input to marine citizen science, extending from volunteer or scientific groups (schools, NGOs or universities, tourists) to more structured community contributions that can come from professionals (for instance fishermen) or companies (sailing companies, port authorities, etc.) that are willing to contribute in these initiatives.

The network should act as a multiplier of work contacted on marine citizen science data collection from different organisations around Europe and operate as a connection hub for their activities. Through the described actions the network will ensure the higher visibility of marine citizen science data collection activities in Europe and will contribute both to motivate the already engaged actors and to bring in the network more interested parties, by connecting them with the appropriate organisations, providing them with community advice on how to set up their own activities, in line with common standards and sharing the collective knowledge created through the network.

• Citizen science activities: information and data collection

To increase the added value of the marine citizen science activities, the proposals should ensure that information and data collected are widely usable and integrated in existing knowledge management platforms (e.g.: EMODnet, Blue Economy Observatory, etc.) and in the end be available for use in the European Digital Twin of the Ocean (EU DTO).

The proposals should also consider the development of easy-to-use tutorials and easy-to-understand training modules, targeted to different categories of marine citizens science actors collecting data. This material should focus on methodologies to ensure that the data collected is FAIR (findable, accessible, interoperable, reusable), will explain how data is made available and will provide recommendations and guidelines for effective citizen science observing activities. The training materials should also ensure that citizen science activities do not conflict with nature protection objectives. Τhe proposals are expected to address the development of good practices regarding data and information consumption coming from marine citizen science activities and make these good practices visible at local, national and European level, as well as at the international level, particularly through the UN Decade of Ocean Science for Sustainable Development.

• Deployment of cost-efficient, citizen science appropriate observing equipment

The proposals should ensure the link between marine citizen science actors and the developers of cost-efficient ocean observing sensors and to facilitate the procurement of appropriate and easy to use citizen science devices and equipment that will enhance and harmonise the outputs of marine citizen science in Europe.

Proposals are expected to define and implement two use-cases to demonstrate in real conditions the use of affordable, durable, high-efficiency and low-carbon footprint marine observing devices/equipment, relevant and applicable to marine citizen science. Observing devices/sensors that are easy to use, automated, standardised and with direct uploading of date in verified databases should be prioritised.

These use-cases will act as pilots, to show, on one side the benefits of using standardised, simple to deploy and use equipment for wide citizen science campaigns and on the other, the benefits and the economies of scale of large procurements of observing devices/equipment for citizen science.

These use-cases should also provide insights for the mobilisation of public and private funding to maximise future deployment and use of observation devices/sensors, thus supporting the scaling up of marine citizen science activities in Europe.