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Marine Ecology Progress Series 596:13

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Marine Ecology Progress Series 596:13 The following supplements accompany the article Effects of the invasive red king crab on food web structure and ecosystem properties in an Atlantic fjord Torstein Pedersen*, Mona M. Fuhrmann, Ulf Lindstrøm, Einar M. Nilssen, Trond Ivarjord, Virginie Ramasco, Lis L. Jørgensen, Jan H. Sundet, Knut Sivertsen, Emma Källgren, Ann Merete Hjelset, Christer Michaelsen, Geir Systad, Fredrika Norrbin, Martin-A. Svenning, Arne Bjørge, Henning Steen, Kjell T. Nilssen *Corresponding author: [email protected] Marine Ecology Progress Series 596: 13–31 (2018) Supplements 1–9: Input data and structure of Ecopath models Contents page Supplement 1 Introduction .......................................................................................................... 3 Supplement 2 Description of concepts and equations supplementing the paper ........................ 4 Predation mortality .............................................................................................. 4 Feeding selection index ....................................................................................... 4 Search rates .......................................................................................................... 5 Omnivory and connectance ................................................................................. 5 Mixed trophic impact ........................................................................................... 6 Supplement 3 Description of the study area ............................................................................... 6 Division into subareas .......................................................................................... 6 Topography and hydrography .............................................................................. 8 Supplement 4 Ecological groups and model input data .............................................................. 8 Input values needed ............................................................................................. 8 Overview of groups with major species listed ..................................................... 9 Supplement 5 Data input for the groups ................................................................................... 13 Mammals ........................................................................................................... 13 1. Grey seals ....................................................................................................... 13 2. Harbour seals ................................................................................................. 14 3. Whales ........................................................................................................... 15 4. Otters .............................................................................................................. 16 Bird groups ........................................................................................................ 16 5. Piscivorous benthic feeding birds .................................................................. 17 6. Pelagic diving birds ....................................................................................... 19 1 7. Surface feeding birds ..................................................................................... 19 8. Benthic invertebrate feeding birds ................................................................. 21 Fish groups ......................................................................................................... 22 9. Large cod (≥ 35 cm in length) and 10. Small cod (< 35 cm in length) .......... 24 11. Large saithe and 12. Small saithe (< 35 cm in length) ................................ 27 13. Large haddock and 14. Small haddock (< 35 cm in length) ........................ 28 Overview of input parameters for groups other than cod, saithe and haddock . 30 15. Small gadoids ............................................................................................... 30 16. Halibut ......................................................................................................... 31 17. Other large flatfish and 18. Other small flatfish (< 35 cm in length) .......... 31 19. Other large demersal fishes (≥ 35 cm in length) .......................................... 32 20. Other small demersal fishes ......................................................................... 33 21. Cottids .......................................................................................................... 34 22. Small pelagic fishes ..................................................................................... 34 23. Herring ......................................................................................................... 36 24. Atlantic salmon ............................................................................................ 37 25. Sea trout ....................................................................................................... 37 26. Arctic charr .................................................................................................. 38 Zooplankton and pelagic nekton groups ............................................................ 39 27. Small krill .................................................................................................... 40 28. Large krill .................................................................................................... 41 29. Small zooplankton ....................................................................................... 41 30. Microzooplankton ........................................................................................ 42 31. Heterotrophic nanoflagellates ...................................................................... 43 32. Schypomedusae ........................................................................................... 43 33. Chaetognaths ................................................................................................ 43 34. Other large zooplankton ............................................................................... 44 35. Pandalid shrimps .......................................................................................... 44 Benthic invertebrates ......................................................................................... 45 Red king crab (gr. 36–38) .................................................................................. 45 36. Large red king crab ...................................................................................... 49 37. Medium red king crab .................................................................................. 50 38. Small red king crab ...................................................................................... 50 Benthic invertebrates groups 39–52 .................................................................. 50 40. Other large crustaceans ................................................................................ 54 2 41. Predatory asteroids ....................................................................................... 55 42. Predatory gastropods .................................................................................... 55 43. Predatory polychaetes .................................................................................. 56 44. Other predatory benthic invertebrates .......................................................... 57 45. Detritivorous polychaetes ............................................................................ 57 46. Small benthic crustaceans ............................................................................ 58 47. Small molluscs ............................................................................................. 58 48. Large bivalves .............................................................................................. 58 49. Detritivorous echinoderms ........................................................................... 59 50. Ctenodiscus crispatus ................................................................................... 59 51. Large epibenthic suspension feeders ........................................................... 60 52. Other benthic invertebrates .......................................................................... 60 53. Herbivorous echinoids ................................................................................. 60 54. Bacteria ........................................................................................................ 62 Benthic algae ...................................................................................................... 63 Assessment methodology .................................................................................. 63 55. Kelp .............................................................................................................. 66 56. Annual and other macroalgae ...................................................................... 67 57. Littoral macroalgae ...................................................................................... 68 58. Benthic microalgae and recruiting macroalgae ........................................... 68 59. Phytoplankton .............................................................................................. 69 60. Discarded catch ............................................................................................ 70 61. Detritus from macroalgae ...........................................................................
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