Literature review of the “Blue Corridors” concept and it´s

0,99
MB applicability to the Baltic Sea

72
stron

5384
ID University of Tartu

2006
rok

CONTENTS

0 PREFACE. 1

1 INTRODUCTION 2

1.1 Definitions:. 2

2 CONNECTIVITY AMONG THE MARINE HABITATS AND ECOSYSTEMS 3

2.1 Connectivity of marine communities on habitat and landscape scales. 3

2.2 Connectivity within habitats: implication of habitat fragmentation. 5

2.3 Importance of spatial characteristics of habitat fragments on colonisation success. 5

2.4 Effects of habitat fragmentation vs habitat loss on marine populations 6

2.5 Artificial structures and habitat fragmentation. 8

2.6 Habitat fragmentation and dispersal of marine species 8

3 BIOGEOGRAPHIC ASPECTS OF THE BALTIC SEA ECOSYSTEM 11

3.1 Hydrology 11

3.2 Geology/morphology of coastline and seabed 12

3.3 Biological aspects . 12

3.4 Environmental conditions determining the structure of animal and plant communities in the Baltic

Sea region. 13

3.5 Alien invasive species. 16

3.6 Human pressure (pollution and eutrophication) 17

4 TEMPORAL AND SPATIAL DIFFERENTIATION IN LIFE CYCLES OF BALTIC SPECIES 21

4.1 Life cycles of fish 21

4.2 Life histories, dispersal, and habitat requirements of marine invertebrates in Baltic waters 24

4.2.1 Life-histories and modes of reproduction 25

4.2.2 Patterns of dispersal and population connectivity. 27

4.2.3 Reproductive surplus 28

4.2.4 Triangular meshes in the food web. 30

4.2.5 Habitat requirements and connectivity 33

4.2.6 Passive transport of invertebrates along Blue corridors . 34

5 GENETIC ASPECTS OF CONNECTIVITY IN THE CONDITIONS OF THE BALTIC SEA 36

5.1 Importance of genetic considerations in MPA planning 36

5.2 Genetic information can contribute to the knowledge about what to protect 37

5.3 Performance of an MPA and genetic information. 38

5.4 Management of genetic resources . 38

5.5 Genetic structure of Baltic populations . 39

5.6 Genetic information can aid in the design and management of a MPA, or a network of MPAs. 39



6 CONNECTIVITY OF POPULATIONS, HABITATS, ECOSYSTEMS USED IN MPA PLANNING

INTERNATIONALLY. INTERNATIONAL EXAMPLES 41

6.1 Principles of MPA planning. 41

6.2 International examples of involving connectivity issues in MPA planning. 43

6.2.1 Connectivity of Caribbean reef fishes . 43

6.2.2 Metapopulation in the Great Barrier Reef . 44

6.2.3 Design of the MPAs 45

6.2.4 Connectivity of MPAs in case of invertebrates . 45

6.2.5 Connectivity of macroalgal populations 46

7 GENERAL CONCLUSIONS . 48

8 REFERENCES. 50

Annex 1: Contributions per author