Paper| Year: | 2020 |
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| Author(s): | M.A. Peck, J. Alheit, I.A. Catalán, S. Garrido, M. Moyano, R. Rykaczewski, A. Takasuka, C. van der Lingen |
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| Title: | Small pelagic fish in the new millennium: A bottom-up view of global research effort |
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| Journal: | PROGRESS IN OCEANOGRAPHY |
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| ISSN: | 0079-6611 |
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| Volume: | 116 |
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| Pages: | 220-245 |
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| D.O.I.: | https://doi.org/10.1016/j.pocean.2020.102494 |
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| Web: | |
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| Abstract: | Small pelagic fish (SPF) play extremely important ecological roles in
marine ecosystems, form some of the most economically valuable fisheries
resources, and play a vital role in global food security. Due to their
short generation times and tight coupling to lower trophic levels,
populations of SPF display large boom-and-bust dynamics that are closely
linked to climate variability. To reveal emerging global research
trends on SPF as opposed to more recently published, ecosystem-specific
reviews of SPF, we reviewed the literature published in two, 6-year
periods in the new millennium (2001–2006, and 2011–2016) straddling the
publication of a large, global review of the dynamics of SPF in 2009. We
explored intrinsic and extrinsic (bottom-up) factors influencing the
dynamics of SPF such as anchovies, sardines, herrings and sprats within
the sub-order Clupeidae. Published research efforts within 16 different
biogeographic ocean regions were compiled (more than 900 studies) and
compared to identify i) new milestones and advances in our
understanding, ii) emerging research trends and iii) remaining gaps in
knowledge. Studies were separated into 5 categories (field, laboratory,
mesocosms, long-term statistical analyses and spatially-explicit
modelling) and discussed in relation to 10 bottom-up categories
including 5 abiotic factors (temperature, salinity, pH, dissolved
oxygen, density), 3 physical processes (advection, turbulence,
turbidity) and 2 biotic factors (prey quantity and quality). The
peer-reviewed literature reflects changes in the number of studies
between the two time periods including increases (Mediterranean Sea,
Humboldt Current) and decreases (Australia, Benguela Current). Our
review highlights i) gaps in ecological knowledge on young juveniles
and, in general, on the impacts of hypoxia and heatwaves on SPF, ii) the
utility of paleo studies in exploring population drivers, iii) the
continued need to develop spatially-explicit, full life-cycle models,
iv) the importance of exploring how density-dependent processes impact
vital rates (growth, survival, reproduction), and v) the benefits of
international collaboration for knowledge transfer and building unifying
hypotheses on the role of bottom-up factors and processes that regulate
SPF populations. |
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Related staffIgnacio A. Catalán AlemanyRelated departmentsMarine EcologyRelated research groupsMarine Ecosystems Dynamics
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