Barents Sea food-web topology from phytoplankton to whales R. Primicerio, K. Michalsen, M. Aschan, G. Certain, P. Dalpadado, A. Dolgov, M. Fossheim, H.
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Barents Sea food-web topologyfrom phytoplankton to whalesR. Primicerio, K. Michalsen, M. Aschan, G. Certain, P. Dalpadado, A. Dolgov, M. Fossheim, H. Gjøsæter, C. Hansen, E. Johannesen, L. Lindal-Jørgensen, B. Planque, M. Skern-Mauritzen, M. Wiedemann
Annual meeting Bergen 2011
Barents Sea food-web
Barents Sea food-web
Robustness• Compartment-
alization the degree to
which subsets of species are connected with other species in the food web
Barents Sea food-web
Robustness• Compartment-
alization Network
analysis
Food web topology
• Compilation1. Species list2. Feeding links
Barents Sea food-web
Food web topology
• Compilation1. Species list2. Feeding links
Barents Sea food-web
Food web topology
• Compilation Bodini et al.
2009
Barents Sea food-web
S =151
Ltot = 1001
C = 0.0442
Cbar = 0.0713
Food web topology
• Compilation Bodini et al.
2009
Barents Sea food-web
Food web topology
• Compilation Bodini et al.
2009
Barents Sea food-web
Fish35 nodes77 links
Food web topology• Compilation BarEcoRe
Trophic-species 227• 15 sea mammals• 10 sea birds• 88 fish• 62 benthos• 45 plankton
Barents Sea food-web
Food web topology• Compilation BarEcoRe
Trophic-species 227 Trophic links >1150
Barents Sea food-web
Food web topology• Analysis BarEcoRe
Fish • 88 nodes• 305 links
Barents Sea food-web
AmblyrjrAmblyrjh RjllDptrBthySqlsGdsm Mlng
HppglssdshRnhr
SbstsmnSbstsmr
Pllchsv
Mcrm
MlltClph
BrgdPlrn
Lmnd
Amm.Anrhchsl
AnrhchsmAnrhchsdCycl
TrspLycdsrt
LycdssmrGdrpsrsrArtdllst
Trglpsm
SmnsLprsg
AgnsAnsr
ArctgArctz
ArgnArtdllst
ArtdllssBnthBrsmCarprctsCrprctsrChmrCltmCttnEnchEtmpEmcrGdclGdrpsrsvGstr
GlypGym.
GymnHppglssdsp
Icl.Lptg
LptcLprsf
Lprsm
LmpnsfLmpnsl
Lycn
LycdsdLycdsf
Lycdsg
Lycdsp
LycdsrsLycdssmn
LycdnMcrrMrlc
Mrln
McrsMlvd
MlvmMyxc
PrlpPllchsp
RjclSbs.Sbstsv
TrglpsnTrglpspUlcnFshlScmb
Food web topology• Analysis
Fish
Barents Sea food-web
AmblyrjrAmblyrjh RjllDptrBthySqlsGdsm Mlng
HppglssdshRnhr
SbstsmnSbstsmr
Pllchsv
Mcrm
MlltClph
BrgdPlrn
Lmnd
Amm.Anrhchsl
AnrhchsmAnrhchsdCycl
TrspLycdsrt
LycdssmrGdrpsrsrArtdllst
Trglpsm
SmnsLprsg
AgnsAnsr
ArctgArctz
ArgnArtdllst
ArtdllssBnthBrsmCarprctsCrprctsrChmrCltmCttnEnchEtmpEmcrGdclGdrpsrsvGstr
GlypGym.
GymnHppglssdsp
Icl.Lptg
LptcLprsf
Lprsm
LmpnsfLmpnsl
Lycn
LycdsdLycdsf
Lycdsg
Lycdsp
LycdsrsLycdssmn
LycdnMcrrMrlc
Mrln
McrsMlvd
MlvmMyxc
PrlpPllchsp
RjclSbs.Sbstsv
TrglpsnTrglpspUlcnFshlScmb
Bodini et al. 2009 BarEcoRe 2011
Conclusions• BarEcoRe food-web compilation
227 species, >1150 links
• Comparative analysis of food-web compartmentalization
Barents Sea food-web
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