Mardi 8 juillet – 10h – Amphi D à l’IUEM et via zoom
“Models and methods to support sustainable fisheries management and resilient supply chains”
Par Éva Plagányi, CSIRO Environment, Brisbane, Australia**
Abstract : Sustaining marine fisheries in the face of changing climate, increasing human population size and supply chain challenges increasingly calls for complex decision support methods to underpin biological, economic and social sustainability of stocks and dependent users. In this talk, I present examples of fisheries modelling and management, including climate proofing fisheries, analysing trade barriers and how ecosystem models called MICE (Model of Intermediate Complexity for Ecosystem assessments) are being used to support complex management decisions. First, I share progress in revising the largest Torres Strait fishery: tropical rock lobsters Panulirus ornatus. Next, I describe supply chain challenges and our research approaches for addressing these. My second example focuses on Australia’s Northern Prawn Fishery (NPF) which has a long history of sustainable management and MSC accreditation, ensuring the sustainability of the entire multi-species complex as well as being the first fishery to implement a dynamic economic optimisation management approach. Despite world-leading assessment methods, a number of growing challenges and risks (including climate change, habitat alteration, water resource development (WRD), seismic impacts) have meant that it is no longer adequate to consider fishing pressure in isolation of other current and emerging pressures. I’ll briefly provide examples of the use of MICE to confront this complexity, quantify risks and inform future management of the fishery.
**Bio : Dr Éva Plagányi is a Research Group Leader and Senior Principal Research Scientist with CSIRO Environment, Brisbane. Her research is strongly interdisciplinary and focuses on applications for management of biological modelling of marine resources and ecosystems. She has led research on Torres Strait tropical rock lobster and bêche de mer for 17 years, and she leads the development of MICE (Models of Intermediate Complexity for Ecosystem assessments) including applications involving outbreaking crown-of-thorns starfish impacting Australia’s Great Barrier Reef as well as climate change impacts on Torres Strait and the Northern Prawn Fishery. She has a dual biological-mathematical background, has published some 140 journal papers, is an Associate Editor-in-Chief Ecological Applications and has collaborated broadly internationally.
Jeudi 10 Juillet – 11h-12h Amphi D à l’IUEM et via zoom
“Biogeography and spatial ecology in fisheries research. The spatial dimension of fisheries”
Par Jose Maria BELLIDO*, chercheur à l’Instituto Español de Oceanografía (IEO), Murcia, Espagne.
It is now well-known that spatial patterns, local movements, migration patterns, and generally, geographical scenarios are thought to play an important role in the dynamics of fisheries resources. Life always occurs in a defined space and time and fishing exploits marine living resources. Fisheries management needs to consider the spatial dynamics where the natural stocks and fleet interact. Hence, a Marine Spatial Planning approach can provide further insights in fishery management, considering the spatial scenario where natural populations and fishing take place.
However, to get reasonable estimations and predictions of abundance, including a description of variability, models must describe the relevant species interactions, effects of environmental conditions, or fishing effort by gear on the spatial and temporal scales. There are obvious relationships between fishing effort, habitat properties, catchability and fishing mortality, and all these features have to be considered in order to enhance fisheries management in the framework of a MSP approach.
MSP scientific advice is mainly based on the application of mapping tools together with a set of different statistical models and other computational techniques, all on a spatio-temporal basis. Here I will show you some examples of how particular spatial models can be used for advice on MSP.
*Jose Maria Bellido is a researcher associated of the Instituto Español de Oceanografía (IEO) in the Oceanographic Center in Murcia. He has been involved in various research activities related to marine ecology, fisheries management, and spatial modeling. He has contributed to studies on species distribution, fisheries assessment, and the impact of human activities on marine ecosystems.
