Climate-Driven Dynamics of Pelagic Fish Populations
Summary
The distribution, abundance and productivity of pelagic fish species are increasingly governed by shifts in ocean temperature, circulation patterns and oceanographic regimes. Warming sea surface temperatures and altered current systems drive poleward and depth-related range shifts, alter spawning phenology and decouple trophic interactions by modifying the timing and spatial overlap of predators and prey. Decadal‐scale regime shifts, such as those observed in the North Pacific and North Atlantic, can precipitate abrupt changes in dominant species, recruitment success and stock productivity. Modern approaches that integrate satellite‐derived environmental data, hydrographic surveys and advanced statistical or mechanistic models have revealed northward expansions of key stocks, altered egg and larval dispersal pathways and fluctuations in feeding and lipid storage strategies. Such climate‐driven transformations pose challenges to sustainable management by shifting the spatial match between fishing effort and stock distribution, demanding more adaptive, ecosystem‐based assessment frameworks. Understanding the coupling between physical forcing and biological responses underpins projections of future stock dynamics, informs adaptive harvest strategies, and guides policy to mitigate impacts on food security and dependent livelihoods across diverse regions.
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Climate-Driven Dynamics of Pelagic Fish Populations publication trend
The graph below shows the total number of articles in climate-driven dynamics of pelagic fish populations across all publications each year (not limited to Nature Index journals).
Technical terms
Pelagic fish: Species inhabiting the open water column, often highly mobile and sensitive to water‐column changes.
Regime shift: A rapid, persistent reorganisation of ecosystem structure and function, often induced by climatic or oceanographic changes.
Sea surface temperature (SST): The temperature of the ocean’s uppermost layer, a critical driver of species distribution and metabolic processes.
Spawning stock biomass (SSB): The total weight of mature, reproductive individuals in a fish population, used to assess stock health and recruitment potential.
Habitat‐suitability index: A quantitative model that scores environmental favourability for a species based on key physical and biological variables.
References
- Analysis of the Interrelation and Seasonal Variation Characteristics of the Spatial Niche of Dominant Fishery Species—A Case Study of the East China Sea. Biology (2024).
- Impact of Climate Change on Wintering Ground of Japanese Anchovy (Engraulis japonicus) Using Marine Geospatial Statistics. Frontiers in Marine Science (2020).
- Drivers of the summer-distribution of Northeast Atlantic mackerel (Scomber scombrus) in the Nordic Seas from 2011 to 2017; a Bayesian hierarchical modelling approach. ICES Journal of Marine Science (2018).
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