FB3/EV: Evolutionary Ecology of Marine Fishes

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Ecology, Population Dynamics, and Fisheries</div > A number of research projects contribute to the topic of population dynamics and fisheries ecology within the EV. These are introduced below.

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Resolving Trophodynamic Consequences of Climate

Change (RECONN 2):


Match-mismatch between Secondary and Tertiary Production in the

Baltic Sea


To improve our capabilities in understanding and predicting

the impact of a changing climate on marine ecosystems it is

essential to identify the underlying causal relationships and

processes. In the proposed project we will specifically

investigate the effect of the predicted climate change on

match-mismatch situations of zooplankton, larval and adult fish

in the Baltic Sea. The key trophic players in focus are sprat

(Sprattus sprattus) and herring (Clupea harengus), small

pelagic fish species which are sensitive bio-indicators of

climate change. Output from experiments, analyses of existing

field data as well as modelling activities (RECONN I) will be

used to parameterize survival and reproduction rates to be

applied in matrix populations models to simulate future

population development in different climate change scenarios.




EV contributors: Dr. Catriona Clemmesen, Dr. Christoph

Petereit, Holger Haslob


GLOBEC Germany


Acitivities in this research topic aim for a better

understanding of the trophodynamic interactions between

zooplankton and planktivorous fish under the influence of

physical processes in order to elucidate the principle

mechanisms accounting for the high variability of copepod

production and of reproductive success of fishes. A tight

coupling between field and experimental research is required to

form the basis for strategic modelling to enhance the

understanding of ecosystems. Understanding of the mechanisms

governing population fluctuations at short time scales will

finally give insight into the causal relationships of major

population fluctuations and ecosystem changes on the decadal





EV contributors: Dr. Catriona Clemmesen, Dr. Rudi Voss, Dr.

Jörn Schmidt, Dr. Christoph Petereit, Hans-Harald Hinrichsen,

Matthias Schaber, Holger Haslob


UNCOVER - UNderstanding the Mechanisms of Stock ReCOVERy


Presently, a number of exploited fish stocks in European

waters are at historically low levels and in danger of

collapse. For many of these stocks, management advice from ICES

has been a closure of the fishery. In light of this situation,

the purpose of UNCOVER is to develop recovery strategies for EU

fish stocks which are outside of safe biological limits. In

order to develop these recovery strategies, the principle

objectives of UNCOVER are to 1) identify changes experienced

during stock decline and their consequences for the prospects

of stock recovery 2) enhance the understanding of mechanisms of

fish stock recovery. 3) provide recommendations for the

recovery of EU fish stocks, which are outside of safe

biological limits. To fulfill these objectives, UNCOVER will,

utilizing a multidisciplinary approach, synthesise and

integrate relevant information from previous and ongoing

research programs to evaluate and develop strategies for the

rebuilding of stocks. Findings will identify changes

experienced during stock decline as well as key processes

impacting upon the potential for stock recovery. Results will

be integrated into a modelling framework in order to evaluate

and develop management strategies incorporating biological and

environmental factors as well as technical and socio-economic


Funding Agency: EU. (A 6th Framework Programme Specific Targeted Research Project.)

EV contributors working in the area of the eastern Baltic sea

on the stocks of cod and sprat: Dr. Rudi Voss, Dr. Jörn

Schmidt, Hans-Harald Hinrichsen, Matthias Schaber, Holger

Haslob, Christoph Petereit




FishBase is a global information system with key information on

all fishes, currently covering over 31,000 species. Information

is extracted from the scientific literature, standardized,

evaluated, and stored in a relational database. FishBase

comprises the largest compilation of key data such as size,

growth, diet composition, and reproduction. It has over

1,000 citations in the primary literature and attracts over one

million visitors per month. FishBase is supervised by a

Consortium of nine international institutions, with IFM-GEOMAR

providing the position of the coordinator.




EV contributors: Dr. Rainer Froese, Dr. Bernd Ueberschär, Nina

Garilao, Philipp Kropp




AquaMaps are computer-generated predictions of natural

occurrence of marine species, based on the environmental

preference of a given species with respect to depth, salinity,

temperature, primary productivity, and its association with sea

ice or coastal areas. These ‘environmental envelopes’ are

matched against an authority file which contains respective

information for the oceans of the world. Independent knowledge

such as distribution by FAO areas or bounding boxes are used to

avoid mapping species in areas that, though containing suitable habitat,

are not occupied by the species. Maps show the color-coded

likelihood of a species to occur in half-degree sized cells.


may review, modify and approve the maps. Further

development of AquaMaps is currently coordinated by IFM-GEOMAR.




EV contributors: Dr. Rainer Froese, Nina Garilao


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Letzte Änderung dieser Seite: 10.02.2012.