RECORD
Effects of Marine Protected Areas on Overfished Fishing Stocks with Multiple Stable States
Populations and Evolution · Submitted 25 Jan 2015
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We find that MPAs can have either a positive effect or almost no effect on the recovery of depleted fishing stocks, depending on the fish migration patterns and the fishing policies.
The compiled record
The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.
Open the compiled record
The abstract, sentence by sentence
Marine protected areas (MPAs) have attracted much attention as a tool for sustainable fisheries management, restoring depleted fisheries stocks and maintaining ecosystems. However, even with total exclusion of fishing effort, depleted stocks sometimes show little or no recovery over a long time period. Here, using a mathematical model, we show that multiple stable states may hold the key to understanding the tendency for fisheries stocks to recover because of MPAs. We find that MPAs can have either a positive effect or almost no effect on the recovery of depleted fishing stocks, depending on the fish migration patterns and the fishing policies. MPAs also reinforce ecological resilience, particularly for migratory species. In contrast to previous reports, our results show that MPAs have small or sometimes negative effects on the recovery of sedentary species. Unsuitable MPA planning might result in low effectiveness or even deterioration of the existing condition.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Marine protected areas (MPAs) have attracted much attention as a tool for sustainable fisheries management, restoring depleted fisheries stocks and maintaining ecosystems. | background 1.00 | 0.04 | 0.03 | asserted 0.98 |
| s1 | However, even with total exclusion of fishing effort, depleted stocks sometimes show little or no recovery over a long time period. | background 0.64 | 0.06 | 0.04 | asserted 0.85 |
| s2 | Here, using a mathematical model, we show that multiple stable states may hold the key to understanding the tendency for fisheries stocks to recover because of MPAs. | contribution 0.88 | 0.89 | 0.43 | hedged possibility 0.62 |
| s3 | We find that MPAs can have either a positive effect or almost no effect on the recovery of depleted fishing stocks, depending on the fish migration patterns and the fishing policies. | result 1.00 | 0.96 | 0.64 | asserted 0.83 |
| s4 | MPAs also reinforce ecological resilience, particularly for migratory species. | result 0.91 | 0.83 | 0.12 | asserted 0.99 |
| s5 | In contrast to previous reports, our results show that MPAs have small or sometimes negative effects on the recovery of sedentary species. | result 1.00 | 0.90 | 0.12 | asserted 0.98 |
| s6 | Unsuitable MPA planning might result in low effectiveness or even deterioration of the existing condition. | interpretation 0.88 | 0.60 | 0.11 | hedged possibility 0.80 |
What was examined, and what was not
- arXiv listing abstract v1
- full text
- figures and tables
- references and citing sentences
- relations to other papers
- P abstract
- S sections
- T body sentences
- C citations
- R cross-paper relations
The paper
Original abstract
Marine protected areas (MPAs) have attracted much attention as a tool for sustainable fisheries management, restoring depleted fisheries stocks and maintaining ecosystems. However, even with total exclusion of fishing effort, depleted stocks sometimes show little or no recovery over a long time period. Here, using a mathematical model, we show that multiple stable states may hold the key to understanding the tendency for fisheries stocks to recover because of MPAs. We find that MPAs can have either a positive effect or almost no effect on the recovery of depleted fishing stocks, depending on the fish migration patterns and the fishing policies. MPAs also reinforce ecological resilience, particularly for migratory species. In contrast to previous reports, our results show that MPAs have small or sometimes negative effects on the recovery of sedentary species. Unsuitable MPA planning might result in low effectiveness or even deterioration of the existing condition.
Human review
Discussion
Know something about this paper? Leave a comment, or highlight any passage above to comment on it.