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Oysters in hand
Photo: Anna-Lena Lundqvist

Survey of Oysters along the Swedish West Coast Using Towed Video

Science and Information Technology

The use of cost-efficient and low-impact methods for monitoring the abundance and distribution of oyster populations is crucial for the sustainable management and conservation of these habitats. Towed video (video filmed with a camera mounted on a sled which is dragged along the bottom along a predetermined transect), is a very cost-effective and non-destructive method for the assessment of benthic communities. Not only does it generate permanent data-rich records that can be used to explore different research and management-related questions but it is also an ideal way to monitor sensitive environments such as the threatened European oyster (Ostrea edulis) beds. With a focus on the methodology of this underwater imagery survey, Andrea Cabrera will talk about oyster bed surveys carried out in the summer of 2020 from field data collection to data analysis and will discuss the potential for automated image analysis of oysters.

14 Jun 2021
13:00 - 14:00
Zoom webinar

Andrea Cabrera, IVL Swedish Environmental Institute
Good to know
In english
Ocean Data Factory
Andrea Cabrera portrait
Andrea Cabrera works as research assistant at IVL Swedish Environmental Institute and is based at Kristineberg Center in Fiskebäckskil.

About the speaker

Andrea Cabrera is a marine biologist and ethologist whose work has ranged from marine mammals and acoustics to sea snails and bivalves. She is currently working as a research assistant at IVL Swedish Environmental Institute based in Fiskebäckskil, Sweden. She has participated in field data collection using towed video as well as in its subsequent analysis during 2020-2021. In collaboration with Mats Lindegarth and his team (University of Gothenburg) and Ane Timenes Laugen (University of Agder), the group has surveyed 439 different sites along the Swedish coast between 2018 and 2020 and thus generated a comprehensive database of oyster and mussel beds on the west coast of Sweden. The research has focused on monitoring abundance and distribution of oysters and blue mussels as well as the presence/absence of oysters in different sites based on a prediction model.

Ocean Data Factory Sweden's webinar series

According to National Geographic, an estimated 97 % of the world’s water is found in the ocean, and as a result, the ocean has a considerable impact on the weather, temperature, and food supply of humans and other organisms. To take care of the ocean for a sustainable future, we need collaboration, learning, and the exchange of ideas across organizations and disciplines. To achieve this, Ocean Data Factory Sweden has started a webinar series, through which experts from ocean-relevant domains or data-driven innovation relevant domains share their experiences and learning and encourage knowledge sharing and innovation. 

About Ocean Data Factory Sweden

The goal of the Ocean Data Factory - Sweden (ODFSweden) is to enable Sweden to be a global leader in sustainability and data-driven innovation in the digital blue economy. ODFSweden will enable the application of Artificial Intelligence (AI) to many different types of marine data from Swedish to international data sources. The number of use cases for marine data-driven innovation is enormous and includes areas such as environmental monitoring and conservation, transportation and logistics, energy, food, and healthcare, to name a few.

ODF Sweden was established through Vinnova funding and is a consortium of actors from academia, research institutes, public sector, and industry. Professor Robin Teigland from Chalmers University of Tech is the Director of ODF while Torsten Linders from University of Gothenburg  is the Coordinator.