Comparative fishery yields of African Large Marine Ecosystems

2020 ◽  
Vol 36 ◽  
pp. 100543
Author(s):  
Dirk Zeller ◽  
Lincoln Hood ◽  
M.L.D. Palomares ◽  
U.R. Sumaila ◽  
Myriam Khalfallah ◽  
...  
Keyword(s):  
Marine Ecosystems ◽  
Large Marine Ecosystems

Fronts in Large Marine Ecosystems

2009 ◽  
Vol 81 (1-4) ◽  
pp. 223-236 ◽  
Author(s):  
Igor M. Belkin ◽  
Peter C. Cornillon ◽  
Kenneth Sherman
Keyword(s):  
Marine Ecosystems ◽  
Large Marine Ecosystems

Trends in phytoplankton communities within large marine ecosystems diverge from the global ocean

2021 ◽  
pp. 1-12
Author(s):  
Kevin D. Friedland ◽  
John R. Moisan ◽  
Aurore A. Maureaud ◽  
Damian C. Brady ◽  
Andrew J. Davies ◽  
...  
Keyword(s):  
Chlorophyll Concentration ◽  
World Ocean ◽  
Marine Ecosystems ◽  
Fishing Effort ◽  
Global Ocean ◽  
Human Populations ◽  
Anthropogenic Pressures ◽  
Large Marine Ecosystems ◽  
Phytoplankton Communities ◽  
The World

Large marine ecosystems (LMEs) are highly productive regions of the world ocean under anthropogenic pressures; we analyzed trends in sea surface temperature (SST), cloud fraction (CF), and chlorophyll concentration (CHL) over the period 1998–2019. Trends in these parameters within LMEs diverged from the world ocean. SST and CF inside LMEs increased at greater rates inside LMEs, whereas CHL decreased at a greater rates. CHL declined in 86% of all LMEs and of those trends, 70% were statistically significant. Complementary analyses suggest phytoplankton functional types within LMEs have also diverged from those characteristic of the world ocean, most notably, the contribution of diatoms and dinoflagellates, which have declined within LMEs. LMEs appear to be warming rapidly and receiving less solar radiation than the world ocean, which may be contributing to changes at the base of the food chain. Despite increased fishing effort, fishery yields in LMEs have not increased, pointing to limitations related to productivity. These changes raise concerns over the stability of these ecosystems and their continued ability to support services to human populations.

Large Marine Ecosystems

2019 ◽  
pp. 709-723 ◽  
Author(s):  
Kenneth Sherman
Keyword(s):  
Marine Ecosystems ◽  
Large Marine Ecosystems

Seasonal to multiannual marine ecosystem prediction with a global Earth system model

Science ◽  
2019 ◽  
Vol 365 (6450) ◽  
pp. 284-288 ◽  
Author(s):  
Jong-Yeon Park ◽  
Charles A. Stock ◽  
John P. Dunne ◽  
Xiaosong Yang ◽  
Anthony Rosati
Keyword(s):  
Southern Oscillation ◽  
Marine Ecosystem ◽  
Marine Ecosystems ◽  
Earth System ◽  
Marine Resource ◽  
Climate Fluctuations ◽  
Large Marine Ecosystems ◽  
Fish Catch ◽  
Sea Surface Temperature Anomalies ◽  
High Predictability

Climate variations have a profound impact on marine ecosystems and the communities that depend upon them. Anticipating ecosystem shifts using global Earth system models (ESMs) could enable communities to adapt to climate fluctuations and contribute to long-term ecosystem resilience. We show that newly developed ESM-based marine biogeochemical predictions can skillfully predict satellite-derived seasonal to multiannual chlorophyll fluctuations in many regions. Prediction skill arises primarily from successfully simulating the chlorophyll response to the El Niño–Southern Oscillation and capturing the winter reemergence of subsurface nutrient anomalies in the extratropics, which subsequently affect spring and summer chlorophyll concentrations. Further investigations suggest that interannual fish-catch variations in selected large marine ecosystems can be anticipated from predicted chlorophyll and sea surface temperature anomalies. This result, together with high predictability for other marine-resource–relevant biogeochemical properties (e.g., oxygen, primary production), suggests a role for ESM-based marine biogeochemical predictions in dynamic marine resource management efforts.

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