Cross-ecosystem analyses of pelagic food web structure and processes in the Baltic Sea

2007 ◽  
Vol 201 (3-4) ◽  
pp. 243-261 ◽  
Author(s):  
J. Sandberg
AMBIO ◽  
2019 ◽  
Vol 49 (2) ◽  
pp. 391-406 ◽  
Author(s):  
Agnes M. L. Karlson ◽  
Elena Gorokhova ◽  
Anna Gårdmark ◽  
Zeynep Pekcan-Hekim ◽  
Michele Casini ◽  
...  

2002 ◽  
Vol 4 (6) ◽  
pp. 929-941 ◽  
Author(s):  
Jerzy Falandysz ◽  
Barbara Wyrzykowska ◽  
Lidia Strandberg ◽  
Tomasz Puzyn ◽  
Bo Strandberg ◽  
...  

2012 ◽  
Vol 73 ◽  
pp. 17-24 ◽  
Author(s):  
Diana A. Stephansen ◽  
Tore C. Svendsen ◽  
Katrin Vorkamp ◽  
Jens-Ole Frier

Author(s):  
Peter Kasprzak ◽  
Frank Gervais ◽  
Rita Adrian ◽  
Winfried Weiler ◽  
Robert Radke ◽  
...  

2003 ◽  
Vol 60 (5) ◽  
pp. 939-950 ◽  
Author(s):  
Chris J Harvey ◽  
Sean P Cox ◽  
Timothy E Essington ◽  
Sture Hansson ◽  
James F Kitchell

Abstract Because fisheries operate within a complex array of species interactions, scientists increasingly recommend multispecies approaches to fisheries management. We created a food web model for the Baltic Sea proper, using the Ecopath with Ecosim software, to evaluate interactions between fisheries and the food web from 1974 to 2000. The model was based largely on values generated by multispecies virtual population analysis (MSVPA). Ecosim outputs closely reproduced MSVPA biomass estimates and catch data for sprat (Sprattus sprattus), herring (Clupea harengus), and cod (Gadus morhua), but only after making adjustments to cod recruitment, to vulnerability to predation of specific species, and to foraging times. Among the necessary adjustments were divergent trophic relationships between cod and clupeids: cod exhibited top-down control on sprat biomass, but had little influence on herring. Fishing, the chief source of mortality for cod and herring, and cod reproduction, as driven by oceanographic conditions as well as unexplained variability, were also key structuring forces. The model generated many hypotheses about relationships between key biota in the Baltic Sea food web and may ultimately provide a basis for estimating community responses to management actions.


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