Prognosis for long‐term sustainable fisheries in the African Great Lakes

2018 ◽  
Vol 26 (5) ◽  
pp. 413-425 ◽  
Author(s):  
K. Irvine ◽  
C. A. Etiegni ◽  
O. L. F. Weyl
Keyword(s):  
Great Lakes ◽  
Sustainable Fisheries ◽  
African Great Lakes

Long-term primary production trends in the Laurentian Great Lakes: a comparison of geochemical methods

2021 ◽  
Author(s):  
Euan D. Reavie ◽  
Meijun Cai ◽  
Carsten Meyer-Jacob ◽  
John P. Smol ◽  
Josef P. Werne
Keyword(s):  
Primary Production ◽  
Great Lakes ◽  
Laurentian Great Lakes

scholarly journals Carbon Fixation Trends in Eleven of the World’s Largest Lakes: 2003–2018

Water ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3500
Author(s):  
Michael Sayers ◽  
Karl Bosse ◽  
Gary Fahnenstiel ◽  
Robert Shuchman
Keyword(s):  
Climate Change ◽  
Primary Production ◽  
Great Lakes ◽  
Satellite Remote Sensing ◽  
Carbon Fixation ◽  
African Great Lakes ◽  
Wind Speeds ◽  
Bear Lake ◽  
Great Slave Lake ◽  
Significant Production

Large freshwater lakes provide immense value to the surrounding populations, yet there is limited understanding of how these lakes will respond to climate change and other factors. This study uses satellite remote sensing to estimate annual, lake-wide primary production in 11 of the world’s largest lakes from 2003–2018. These lakes include the five Laurentian Great Lakes, the three African Great Lakes, Lake Baikal, and Great Bear and Great Slave Lakes. Mean annual production in these lakes ranged from under 200 mgC/m2/day to over 1100 mgC/m2/day, and the lakes were placed into one of three distinct groups (oligotrophic, mesotrophic, or eutrophic) based on their level of production. The analysis revealed only three lakes with significant production trends over the study period, with increases in Great Bear Lake (24% increase over the study period) and Great Slave Lake (27%) and a decline in Lake Tanganyika (−16%). These changes appear to be related to climate change, including increasing temperatures and solar radiation and decreasing wind speeds. This study is the first to use consistent methodology to study primary production in the world’s largest lakes, allowing for these novel between-lake comparisons and assessment of inter-annual trends.

A Small Member State and European Foreign Policy: Shaping or Taking? The Case of Belgium and the African Great Lakes

2008 ◽  
Vol 3 (3) ◽  
pp. 233-252 ◽  
Author(s):  
Skander Nasra
Keyword(s):  
Foreign Policy ◽  
Member State ◽  
Great Lakes ◽  
European Integration ◽  
Integration Process ◽  
Policy System ◽  
African Great Lakes ◽  
Foreign Policies ◽  
Small Member

AbstractThe European integration process has altered the conditions under which national foreign policies in Europe are made. Departing from this assumption, this article explores whether and under what conditions a small EU member state can influence European foreign policy. To this end, the role that Belgium has played in the construction of European foreign policy towards the African Great Lakes is examined. This article argues that a small EU member state can significantly influence European foreign policy, resulting in reinforcement of its national foreign policy. Yet this influence is conditioned by two intertwined factors: the nature of EU involvement; and the characteristics of the Union's foreign policy system. Depending on these elements, a small member state can supersede the quantifiable notion of 'smallness' and actively shape the construction of European foreign policy.

scholarly journals A Long-Term Fine-Resolution Record of AVHRR Surface Temperatures for the Laurentian Great Lakes

2018 ◽  
Vol 10 (8) ◽  
pp. 1210
Author(s):  
Charles White ◽  
Andrew Heidinger ◽  
Steven Ackerman ◽  
Peter McIntyre
Keyword(s):  
Great Lakes ◽  
Morphological Characteristics ◽  
Laurentian Great Lakes ◽  
Environmental Research ◽  
Weighted Interpolation ◽  
Large Lakes ◽  
Fine Resolution ◽  
Observation Times ◽  
The Impact

Inland waters are warming at highly variable rates that often differ from regional air temperature trends. This variable warming is partially attributable to an individual lake’s geographical and morphological characteristics. In very large lakes, significant intralake variability in long-term warming trends has also been observed. In light of this intralake and interlake heterogeneity of lake surface water temperature (LSWT) and LSWT trends, we revisit the 1.1 km Advanced Very High Resolution Radiometer (AVHRR) record for the Laurentian Great Lakes. In this work, we have assembled a long-term (1986–2016) and high-spatial-resolution (0.018°) daily LSWT dataset using AVHRR record. Subtracting an empirically-determined mean diurnal cycle mitigates the effects of varying observation times. Adjustments in the georegistration of the images are made to reduce the impact of AVHRR navigational errors on the earlier platforms. Both the original daily composites, and a gap-filled product using locally weighted interpolation methods will be made available to support fine-scale physical and environmental research in the region.

Seeking Participatory Equity Through Ethnographic Inquiry

2001 ◽  
Vol 23 (3) ◽  
pp. 17-22 ◽  
Author(s):  
John Stone
Keyword(s):  
Environmental Management ◽  
Great Lakes ◽  
Lessons Learned ◽  
Public Consultation ◽  
Ann Arbor ◽  
Long Term Consequences

This article describes my EPA/SfAA Fellowship experience with the Great Lakes Commission (GLC) in Ann Arbor, Michigan, conducted between August 1999 and October 2000. It generally follows the format of Robert Wulff's and Shirley Fiske's Anthropological Praxis: Translating Knowledge into Action (Boulder CO: Westview. 1987), with major sections devoted to "Client and Problem," "Process and Players," "Results and Evaluation," and "The Anthropological Difference." The article concludes by summarizing the lessons learned through the fellowship and its potential long-term consequences for public consultation in Great Lakes environmental management. I gratefully acknowledge support provided by my fellowship host, sponsors, and supervisors; however, the positions I take in this article are mine alone and do not necessarily reflect their opinions.

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