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Joakim Hjelm
Observed names:
HJELM Joakim,
Hjelm, J.,
Hjelm, Joakim,
J. Hjelm
Institution:
Swedish University of Agricultural Sciences
Observed institutions:
Swedish National Board of Fisheries,
Swedish University of Agricultural Sciences,
Swedish Agency for Marine and Water Management,
Umeå University
ORCID:
0000-0001-8423-8873
Observed ORCID:
0000-0001-8423-8873
OpenAlex ID:
A5000470608
Trophic cascades promote threshold-like shifts in pelagic marine ecosystems
2008
·
Michele Casini
, Joakim Hjelm
, et al.
·
Proceedings of the National Academy of Sciences
·
427
Multi-level trophic cascades in a heavily exploited open marine ecosystem
2008
·
Michele Casini
, Johan Lövgren
, et al.
·
Proceedings of the Royal Society B Biological Sciences
·
369
Growth, morphological variation and ontogenetic niche shifts in perch (Perca fluviatilis) in relation to resource availability
2000
·
J. Hjelm
, L. Persson
, et al.
·
Oecologia
·
230
Hypoxic areas, density-dependence and food limitation drive the body condition of a heavily exploited marine fish predator
2016
·
Michele Casini
, Filip Käll
, et al.
·
Royal Society Open Science
·
179
Eastern Baltic cod in distress: biological changes and challenges for stock assessment
2015
·
Margit Eero
, Joakim Hjelm
, et al.
·
ICES Journal of Marine Science
·
159
PDF
Inter‐annual variation in herring, Clupea harengus , and sprat, Sprattus sprattus , condition in the central Baltic Sea: what gives the tune?
2006
·
Michele Casini
, Massimiliano Cardinale
, et al.
·
Oikos
·
130
Diet‐dependent body morphology and ontogenetic reaction norms in Eurasian perch
2001
·
Joakim Hjelm
, Richard Svanbäck
, et al.
·
Oikos
·
107
PDF
Regime shifts in exploited marine food webs: detecting mechanisms underlying alternative stable states using size-structured community dynamics theory
2014
·
Anna Gårdmark
, Michele Casini
, et al.
·
Philosophical Transactions of the Royal Society B Biological Sciences
·
94
Functional link between foraging performance, functional morphology, and diet shift in roach (Rutilus rutilus)
2003
·
Joakim Hjelm
, Gerco H van de Weerd
, et al.
·
Canadian Journal of Fisheries and Aquatic Sciences
·
64
Size‐dependent attack rate and handling capacity: inter‐cohort competition in a zooplanktivorous fish
2001
·
Joakim Hjelm
, Lennart Persson
·
Oikos
·
55
Report of the Baltic Fisheries Assessment Working Group (WGBFAS), 10-17 April 2013, ICES Headquarters, Copenhagen
2013
·
Marie Storr‐Paulsen
, Timo Arula
, et al.
·
54
Interactions among Size-Structured Populations in a Whole-Lake Experiment: Size- and Scale-Dependent Processes
1999
·
Lennart Persson
, Par Bystrom
, et al.
·
Oikos
·
53
The first large-scale assessment of three-spined stickleback (Gasterosteus aculeatus) biomass and spatial distribution in the Baltic Sea
2019
·
Jens Olsson
, Eglė Jakubavičiūtė
, et al.
·
ICES Journal of Marine Science
·
50
Unexpected fish and squid in the central Arctic deep scattering layer
2022
·
Pauline Snoeijs-Leijonmalm
, Hauke Flores
, et al.
·
Science Advances
·
48
Predators with Multiple Ontogenetic Niche Shifts Have Limited Potential for Population Growth and Top-Down Control of Their Prey
2013
·
Anieke van Leeuwen
, Magnus Huss
, et al.
·
The American Naturalist
·
46
Two- and three-dimensional maturation reaction norms for the eastern Baltic cod, Gadus morhua
2008
·
Anssi Vainikka
, Anna Gårdmark
, et al.
·
ICES Journal of Marine Science
·
46
Fishing through time: population dynamics of plaice ( Pleuronectes platessa ) in the Kattegat–Skagerrak over a century
2009
·
Massimiliano Cardinale
, Jacob Hagberg
, et al.
·
Population Ecology
·
37
PDF
Management Forcing Increased Specialization in a Fishery System
2014
·
J. Hentati-Sundberg
, J. Hjelm
, et al.
·
Ecosystems
·
34
Trends in cpue and related changes in spatial distribution of demersal fish species in the Kattegat and Skagerrak, eastern North Sea, between 1981 and 2003
2005
·
Michele Casini
, Massimiliano Cardinale
, et al.
·
ICES Journal of Marine Science
·
32
PDF
Seal exclusion devices in cod pots prevent seal bycatch and affect their catchability of cod
2015
·
Sara Königson
, Johan Lövgren
, et al.
·
Fisheries Research
·
31
Which factors can affect the productivity and dynamics of cod stocks in the Baltic Sea, Kattegat and Skagerrak?
2022
·
Andreas C. Bryhn
, Sara Bergek
, et al.
·
Ocean & Coastal Management
·
29
PDF
Report of the Baltic Fisheries Assessment Working Group (WGBFAS) : 14-21 April 2015, ICES HQ, Copenhagen, Denmark
2015
·
Mikaela Bergenius
, Jesper Boje
, et al.
·
28
Size matters: Short term loss and long term gain in a size-selective fishery
2012
·
Massimiliano Cardinale
, Joakim Hjelm
·
Marine Policy
·
18
Life history and morphology of Rana temporaria in response to pool permanence
2005
·
Frank Johansson
, Joakim Hjelm
, et al.
·
Evolutionary ecology research
·
18
The “easy restriction” syndrome drive local fish stocks to extinction: The case of the management of Swedish coastal populations
2017
·
Massimiliano Cardinale
, Anders Svenson
, et al.
·
Marine Policy
·
17
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Works count:
70
Citation count:
2,506
H-index:
22
I10-index:
32
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