Direct and indirect effects of sea ice cover on major zooplankton groups and planktivorous fishes in the Barents Sea

被引:42
作者
Stige, Leif Christian [1 ]
Eriksen, Elena [2 ]
Dalpadado, Padmini [2 ]
Ono, Kotaro [1 ,3 ]
机构
[1] Univ Oslo, CEES, POB 1066, N-0316 Oslo, Norway
[2] Inst Marine Res, POB 1870, N-5817 Bergen, Norway
[3] Univ Agder, CCR, POB 422, N-4604 Kristiansand, Norway
关键词
amphipods; Boreogadus saida; copepods; krill; Mallotus villosus; multispecies dynamics; CAPELIN MALLOTUS-VILLOSUS; CALANUS-GLACIALIS; TROPHIC CONTROL; CLIMATE-CHANGE; TIME-SERIES; ABUNDANCE; GROWTH; COMPETITION; MECHANISMS; PREDATION;
D O I
10.1093/icesjms/fsz063
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
Reductions in Arctic sea ice affect marine food webs through a multitude of direct and indirect effects. We here analysed direct, indirect, and delayed associations between winter sea ice cover and year-to-year changes in biomasses of the main zooplankton groups (copepods, krill, amphipods) and planktivorous fishes (capelin, polar cod) in the central and northern Barents Sea from 1980 to 2015. Climate effects and species interactions were estimated jointly in a Bayesian state-space model framework. We found that population biomass of capelin increased in years with low sea ice cover, while biomasses of copepods and amphipods decreased. Furthermore, results suggested strong bottom-up effects by krill on capelin and by copepods on amphipods and top-down effects by polar cod on amphipods and by capelin on krill and copepods. Sea ice effects thereby cascaded through the food web through indirect and delayed effects. The indirect and delayed effects amplified the effects of sea ice cover on capelin, copepods and amphipods. For krill, low sea ice cover most likely increased biomass in the short-term but reduced biomass in longer terms because of increased predation pressure. These findings suggest that both bottom-up and top-down processes need to be considered when projecting effects of future climate change on ecosystems.
引用
收藏
页码:I24 / I36
页数:13
相关论文
共 65 条
[1]   Contribution of Calanus species to the mesozooplankton biomass in the Barents Sea [J].
Aarflot, Johanna Myrseth ;
Skjoldal, Hein Rune ;
Dalpadado, Padmini ;
Skern-Mauritzen, Mette .
ICES JOURNAL OF MARINE SCIENCE, 2018, 75 (07) :2342-2354
[2]  
[Anonymous], 2018, SHINYSTAN INT VIS NU
[3]   Lipid biomarkers indicate different ecological niches and trophic relationships of the Arctic hyperiid amphipods Themisto abyssorum and T-libellula [J].
Auel, H ;
Harjes, M ;
da Rocha, R ;
Stübing, D ;
Hagen, W .
POLAR BIOLOGY, 2002, 25 (05) :374-383
[4]   State-space models' dirty little secrets: even simple linear Gaussian models can have estimation problems [J].
Auger-Methe, Marie ;
Field, Chris ;
Albertsen, Christoffer M. ;
Derocher, Andrew E. ;
Lewis, Mark A. ;
Jonsen, Ian D. ;
Flemming, Joanna Mills .
SCIENTIFIC REPORTS, 2016, 6
[5]  
BAILEY KM, 1989, ADV MAR BIOL, V25, P1
[6]  
Bogstad Bjarte, 2015, FRONT ECOL EVOL, V3, P29, DOI [10.3389/fevo.2015.00029, DOI 10.3389/FEVO.2015.00029]
[7]   Spatial patterns and predictors of trophic control in marine ecosystems [J].
Boyce, Daniel G. ;
Frank, Kenneth T. ;
Worm, Boris ;
Leggett, William C. .
ECOLOGY LETTERS, 2015, 18 (10) :1001-1011
[8]   Oceanic distribution and life cycle of Calanus species in the Norwegian Sea and adjacent waters [J].
Broms, Cecilie ;
Melle, Webjorn ;
Kaartvedt, Stein .
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY, 2009, 56 (21-22) :1910-1921
[9]   Bottom-Up Regulation of Capelin, a Keystone Forage Species [J].
Buren, Alejandro D. ;
Koen-Alonso, Mariano ;
Pepin, Pierre ;
Mowbray, Fran ;
Nakashima, Brian ;
Stenson, Garry ;
Ollerhead, Neil ;
Montevecchi, William A. .
PLOS ONE, 2014, 9 (02)
[10]   Population time series: Process variability, observation errors, missing values, lags, and hidden states [J].
Clark, JS ;
Bjornstad, ON .
ECOLOGY, 2004, 85 (11) :3140-3150