The DOI matches its Crossref record.
World-wide fluctuations of sardine and anchovy stocks: the regime problem
Open accessAbstract
Summed differences between the highest and lowest catches of two clupeoid taxa, sardines Sardinops spp. and Sardina pilchardus and anchovies Engraulis spp., in five regions where they co-occur are in excess of 29 million tons. Both taxa show large expansions and contractions of range with changes in abundance. Populations of sardines also shift alongshore, possibly in response to climate change. At time-scales of several decades, fluctuations in catches of sardines and anchovies are seemingly dominated by long-term environmental variations which cause large and prolonged changes in abundance and give rise to "regimes" of sardine or anchovy. These long-term fluctuations are probably associated with persistent environmental changes of oceanic to global scale, there being coherence of trends in various sardine stocks on an oceanic scale and similarities between these changes and global, hemispheric and oceanic indices of the environment.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
From Anchovies to Sardines and Back: Multidecadal Change in the Pacific Ocean
Chavez, F. P., Ryan, J., Lluch-Cota, S. E., & Ñiquen C., M. (2003) · Science · doi:10.1126/science.1075880 · Cited by 1,641
Cury, P. (2000) · ICES Journal of Marine Science · doi:10.1006/jmsc.2000.0712 · Cited by 1,121
Rose, K. A., Cowan, J. H., Winemiller, K. O., Myers, R. A., & Hilborn, R. (2001) · Fish and Fisheries · doi:10.1046/j.1467-2960.2001.00056.x · Cited by 696
Worldwide large-scale fluctuations of sardine and anchovy populations
Schwartzlose, R. A., Alheit, J., Bakun, A., Baumgartner, T. R., Cloete, R., Crawford, R. J. M., Fletcher, W. J., Green-Ruiz, Y., Hagen, E., Kawasaki, T., et al. (1999) · South African Journal of Marine Science · doi:10.2989/025776199784125962 · Cited by 548
Self-citationSub-regional ecosystem variability in the Canary Current upwelling
Arístegui, J., Barton, E. D., Álvarez-Salgado, X. A., Santos, A. M. P., Figueiras, F. G., Kifani, S., Hernández-León, S., Mason, E., Machú, E., & Demarcq, H. (2009) · Progress in Oceanography · doi:10.1016/j.pocean.2009.07.031 · Cited by 454
Metadata
- Authors
- Lluch-Belda, D., Crawford, R. J. M., Kawasaki, T., MacCall, A. D., Parrish, R. H., Schwartzlose, R. A., & Smith, P. E.
- Venue
- South African Journal of Marine Science
- Published
- 1989-06
- Volume
- 8
- Issue
- 1
- Pages
- 195-205
- ISSN
- 0257-7615 (ISSN-L)
- OpenAlex
- W2089701218
- Cited by
- 415
- References
- 0
- FWCI
- 4.54
- Type
- journal article
- Language
- en
- Open access
- bronze
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: World-wide fluctuations of sardine and anchovy stocks: the regime problem. https://app.cochat.ai/papers/10.2989/02577618909504561
- The paper
- Lluch-Belda, D., Crawford, R. J. M., Kawasaki, T., MacCall, A. D., Parrish, R. H., Schwartzlose, R. A., & Smith, P. E. (1989). World-wide fluctuations of sardine and anchovy stocks: the regime problem. South African Journal of Marine Science. https://doi.org/10.2989/02577618909504561
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.