Sammanfattning

Populations of Atlantic salmon are crashing across most of its natural range: understanding the underlying causes and predicting these collapses in time to intervene effectively are urgent ecological and socioeconomic priorities. Current management techniques rely on phenomenological analyses of demographic population time-series and thus lack a mechanistic understanding of how and why populations may be declining. New multidisciplinary approaches are thus needed to capitalize on the long-term, large-scale population data that are currently scattered across various repositories in multiple countries, as well as marshaling additional data to understand the constraints on the life cycle and how salmon operate within the wider food web. Here, we explore how we might combine data and theory to develop the mechanistic models that we need to predict and manage responses to future change. Although we focus on Atlantic salmon-given the huge data resources that already exist for this species-the general principles developed here could be applied and extended to many other species and ecosystems.

Nyckelord

Atlantic salmon (Salmo salar); marine and freshwater fisheries; ecosystem-based management (EBM); matrix projection models; metabolic theory of ecology (MTE); life-stage models; size structure

Publicerad i

Frontiers in Ecology and Evolution
2021, Volym: 9, artikelnummer: 675261
Utgivare: FRONTIERS MEDIA SA

SLU författare

• Belgrano, Andrea

  • Institutionen för akvatiska resurser (SLU Aqua), Sveriges lantbruksuniversitet
    

Globala målen

SDG14 Bevara och nyttja haven och de marina resurserna på ett hållbart sätt för en hållbar utveckling


UKÄ forskningsämne

Ekologi


Publikationens identifierare

DOI: https://doi.org/10.3389/fevo.2021.675261

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/115411