Cheung, W. W. L., C. Close, V. W. Y. Lam, R. Watson and D. Pauly (2008). Application of macroecological theory to predict effects of climate change on global fisheries potential. Marine Ecology Progress Series 365: 187-197.
Check out Ecopath model, it is a resonably good tool.
Climate change is the main cause of the change of seasons. It is so in the Rain summer drought in the winter ... The main causes of climate change it is the elevation of the temperature of the earth. The temperature of the soil can cause problems in the ozon layer.
this: http://fliessgewaesserbiologie.kliwa.de/ is in german but you can find a good overview over the effords, made in southern germany to deal with this question. Additionally they list a lot of literature, concerning climate change and freshwater-ecology.
your answer can be found on the AgIP website . www.agmip.org . This is a project of intercomparison of models to assess the impacts of climate change on agro-ecosystems mainly. I hope this may help.
We are part of this in Pakistan. The people working in Pakistan and south asia can browse the website www.agmip.pk to know the impacts of climate change on agro-ecosystem of pakistan.