Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Climate change impacts on primary production and economically important fish stocks in the Black Sea
Download
index.pdf
Date
2013
Author
Küçükavşar, Selin
Metadata
Show full item record
Item Usage Stats
247
views
112
downloads
Cite This
Coastal urbanization, heavy nutrient/pollutant loads due to intense anthropogenic activities and unsustainable fisheries have been threatening life-support system of marine environment and getting more drastic with the climatic variations and its impacts. Changes in sea surface temperatures and related dynamical processes have been threatening bottom-up / top-down control of marine food webs via variations in primary production and changes in biogeographic and temporal responses of thermophilic species. All these perturbations, habitat and biodiversity losses consequently affect marine food resources and its economy, coastal life-support systems for human society. Proposed thesis aims to determine relationship between climate change and primary production and to understand how economically important fish stocks have been influenced by the variations in primary production in the Black Sea for the last 45 years. Time series data available through in situ measurements of lower trophic level ecosystem parameters (METU-Institute of Marine Sciences) was evaluated, whereas the data on meteorological parameters and biodiversity change/fish stocks was collected from Turkish State Meteorological Service and Turkish Statistical Institute respectively for the same period. Another important deliverable of the thesis will be the proposal of how to strengthen sustainable management strategies, economy and policy tools for Turkish fishery sector under these determined relationships.
Subject Keywords
Fish stock assessment.
,
Fisheries
,
Fish populations
,
Climatic changes.
URI
http://etd.lib.metu.edu.tr/upload/12616287/index.pdf
https://hdl.handle.net/11511/23169
Collections
Graduate School of Natural and Applied Sciences, Thesis
Suggestions
OpenMETU
Core
Current distribution of the small pelagic fish populations in the North Eastern Levantine Sea in relation to environmental conditions and predicting the impacts of temperature rise on their future distributions
Sakınan, Serdar; Gücü, Ali Cemal; Department of Marine Biology and Fisheries (2014)
Stocks of traditionally targeted fish species are in decline in the north eastern Levant Sea due to overfishing during recent decades, while catch statistics show a simultaneous increase in landings of commercially less valuable small pelagic species. Moreover, the number of species in the eastern Mediterranean is increasing due to Lessepsian migration and the response of native species to the continuous migration of lessepsian species is in question. Additionally, warming associated with climate change is ...
Climate change impacts on lakes: an integrated ecological perspective based on a multi-faceted approach, with special focus on shallow lakes
Jeppesen, Erik; Meerhoff, Mariana; Davidson, Thomas A.; Trolle, Dennis; Sondergaard, Martin; Lauridsen, Torben L.; Beklioğlu, Meryem; Brucet, Sandra; Volta, Pietro; Gonzalez-Bergonzoni, Ivan; Nielsen, Anders (PAGEPress Publications, 2014-01-01)
Freshwater ecosystems and their biodiversity are presently seriously threatened by global development and population growth, leading to increases in nutrient inputs and intensification of eutrophication-induced problems in receiving fresh waters, particularly in lakes. Climate change constitutes another threat exacerbating the symptoms of eutrophication and species migration and loss. Unequivocal evidence of climate change impacts is still highly fragmented despite the intensive research, in part due to the...
Climate change vulnerability in agriculture and adaptation strategies of farmers to climatic stresses in Konya, Turkey
Kuş, Melike.; Rittersberger Tılıç, Helga.; Department of Earth System Science (2019)
Agriculture is highly vulnerable to climatic changes and extremes as it is generally an outdoor activity. Its vulnerability to climate change is estimated at different scales and then policies are developed to reduce sensitivity and improve adaptive capacity of the farmers accordingly. Assessments at different scales use different methodologies and indicators, which result in incomparable outcomes. Macro scale assessments lack further validation of the results at the local level, and the local level assessm...
Stock assessment of the Black Sea anchovy
Tutar, Özge; Gücü, Ali Cemal; Department of Marine Biology and Fisheries (2014)
The Black Sea anchovy (Engraulis encrasicolus) is economically the most important fish species in Turkey since it provides 60% of the total fish catch. The Turkish fleet catches 90% of the anchovy stock in the Black Sea due to the anchovy winter migration to the Turkish coast. Over the last 50 years, the Black Sea basin has been subjected to pollution due to human sourced nutrient accumulation in the NW basin via the rivers Danube, Dniester and Dnieper and transportation. The ecosystem has been destroyed by...
Climate change effects on nitrogen loading from cultivated catchments in Europe: implications for nitrogen retention, ecological state of lakes and adaptation
Jeppesen,Jeppesen, Erik,Erik; Kronvang, Brian; Olesen, Jorgen E.; Audet, Joachim; Sondergaard, Martin; Hoffmann, Carl C.; Andersen, Hans E.; Lauridsen, Torben L.; Liboriussen, Lone; Larsen, Soren E.; Beklioglu, Meryem; Meerhoff,Meerhoff, Mariana,Mariana; Özen, Arda; Özkan, Korhan (2011-03-01)
Climate change might have profound effects on the nitrogen (N) dynamics in the cultivated landscape as well as on N transport in streams and the eutrophication of lakes. N loading from land to streams is expected to increase in North European temperate lakes due to higher winter rainfall and changes in cropping patterns. Scenario (IPCC, A2) analyses using a number of models of various complexity for Danish streams and lakes suggest an increase in runoff and N transport on an annual basis (higher during wint...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
S. Küçükavşar, “Climate change impacts on primary production and economically important fish stocks in the Black Sea,” M.S. - Master of Science, Middle East Technical University, 2013.