Community- and government-managed marine protected areas increase fish size, biomass and potential value DOI Creative Commons

Angelica Chirico,

Tim R. McClanahan, Johan Eklöf

et al.

PLoS ONE, Journal Year: 2017, Volume and Issue: 12(8), P. e0182342 - e0182342

Published: Aug. 14, 2017

Government-managed marine protected areas (MPAs) can restore small fish stocks, but have been heavily criticized for excluding resource users and creating conflicts. A promising less studied alternative are community-managed MPAs, where more involved in MPA design, implementation enforcement. Here we evaluated effects of government- MPAs on the density, size biomass seagrass- coral reef-associated fish, using field surveys Kenyan coastal lagoons. We also assessed protection potential monetary value fish; a variable that increases non-linearly with body mass is particularly important from fishery perspective. found two recently established community (< 1 km2 size, ≤ 5 years protection) harbored larger greater total than fished (open access) areas, both seagrass beds reefs. As expected, were considerably stronger older government MPAs. Importantly, across management habitat types, effect was much (6.7 vs. 2.6 1.3 times higher respectively). This strong partly explained by presence (and therefore valuable) individual densities high-value taxa (e.g. rabbitfish). In summary, show i) can, just like government-managed play an role local conservation ii) these equally reefs as beds; too rarely included formal management. Consequently, could benefit reef ecosystems provide spillover valuable to nearby fisheries.

Language: Английский

Coastal urbanization-related stressors affect fish herbivory in the Spermonde Archipelago, Indonesia DOI Creative Commons

ESTRADIVARI ESTRADIVARI,

Andi Muh. Agung Pratama,

Gunawan Syafruddin

et al.

Frontiers in Marine Science, Journal Year: 2025, Volume and Issue: 12

Published: March 6, 2025

Coastal urbanization has significantly degraded coral reef habitats worldwide, often driving shifts from to algal dominance. Quantifying fish herbivory, a key ecological process mitigating such transitions, is essential for understanding health, functioning, and resilience. This study examined herbivory rates (bites multiplied by biomass) across five functional groups (detritivores, croppers, browsers, scrapers, excavators) in relation conditions along gradient of urban influence the Spermonde Archipelago, Indonesia. Herbivory generally increased inshore offshore sites, with notable differences among groups. Cropper scraper varied while detritivore excavator were consistent. Browser was only observed at most site, highlighting potential vulnerability browsing function near centers. Environmental factors influenced distinct ways. Detritivore higher on reefs lower rugosity, likely due sediment accumulation flatter substrates. all herbivorous fish, scrapers excavators individually, strongly correlated organic matter content turf algae sediments, underscoring importance food quality shaping dynamics. Experimental manipulation sediments (clearing vs . control) did not affect rates, suggesting that effects are main driver patterns studied sites. Preserving taxonomic diversity critical maintaining resilience amidst increasing local stressors.

Language: Английский

Citations

1
Biomass‐based targets and the management of multispecies coral reef fisheries DOI
Tim R. McClanahan, Nicholas A. J. Graham, M. Aaron MacNeil

et al.

Conservation Biology, Journal Year: 2014, Volume and Issue: 29(2), P. 409 - 417

Published: Dec. 11, 2014

Abstract The failure of fisheries management among multispecies coral reef is well documented and has dire implications for the 100 million people engaged in these small‐scale operations. Weak or missing institutions, a lack research capacity, complex nature ecosystems have heralded call ecosystem‐based approaches. However, proved challenging due to catches diversity fish functional roles. We used data on communities collected from 233 individual sites 9 western Indian Ocean countries evaluate changes site's composition associated life‐history characteristics along large range biomass. As biomass increased this range, were larger grew matured more slowly while abundance scraping predatory species increased. greatest occurred below relatively low standing stock (<600 kg/ha); abundances piscivores, apex predators, herbivores at very light levels fishing. This suggests potential trade‐offs ecosystem function estimated yields different systems. Current fishing gear area restrictions are not achieving conservation targets (proposed here as 1150 kg/ha) result losses life history ecological functions. Fish reefs where destructive gears restricted typically had similar functions young compliance closures. indicates potentially important role providing some gains when fully protected enforcement limited likely fail. Our results indicate that alone can provide broad be easily applied even capacity information limited. Of particular value, our finding current tools may reach key targets, enabling many socioeconomic contexts.

Language: Английский

Citations

95
Comparative analysis of foraging behavior and bite mechanics reveals complex functional diversity among Caribbean parrotfishes DOI

TC Adam,

Alain Durán,

CE Fuchs

et al.

Marine Ecology Progress Series, Journal Year: 2018, Volume and Issue: 597, P. 207 - 220

Published: April 17, 2018

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 597:207-220 (2018) - DOI: https://doi.org/10.3354/meps12600 Comparative analysis of foraging behavior and bite mechanics reveals complex functional diversity among Caribbean parrotfishes Thomas C. Adam1,*, Alain Duran2, Corinne E. Fuchs3, Madelyn V. Roycroft4, Maria Rojas2, Benjamin I. Ruttenberg4, Deron Burkepile1,3 1Marine Science Institute, University California, Santa Barbara, CA 93106, USA 2Department Biological Sciences, Florida International University, Miami, FL 33199, 3Department Ecology, Evolution Biology 4Biological Sciences Department, California Polytechnic State San Luis Obispo, 93407, *Corresponding author: [email protected] ABSTRACT: Parrotfishes are a diverse group herbivores that can influence benthic community dynamics ecosystem function on coral reefs. Different species size classes vary in their feeding ecology impact reef ecosystems distinct ways. We documented differences 9 Keys National Sanctuary (FKNMS). Many key be summarized by assigning groups (e.g. scrapers, excavators, croppers, macroalgae browsers), which differentially responsible for carrying out specific ecological processes. For example, we found Sparisoma viride, Scarus coelestinus, Sc. guacamaia, taeniopterus, vetula feed short turfs with few sediments, while Sp. aurofrenatum, chrysopterum, rubripinne longer sediment-laden addition macroalgae. Further, use types indicate contrasting impacts benthos. Species scrape excavate epilithic endolithic algae, tend tear or crop algae from reef. These behaviors result different rates removal, carbonate erosion, sediment production. Recognizing interact benthos fundamentally ways will enable scientists managers better predict how changes structure parrotfish assemblages may affect communities KEY WORDS: Herbivory · Coral Niche partitioning Bioerosion Turf Macroalgae Ecosystem-based management Functional Full text pdf format Supplementary material PreviousNextCite this article as: Adam TC, Duran A, Fuchs CE, Roycroft MV, Rojas MC, Ruttenberg BI, Burkepile DE parrotfishes. Mar Ecol Prog Ser 597:207-220. Export citation Mail link Contents Lists Tweet linkedIn Cited Published Vol. 597. Online publication date: June 11, 2018 Print ISSN: 0171-8630; 1616-1599 Copyright © Inter-Research.

Language: Английский

Citations

81
Long-term no-take marine reserve and benthic habitat effects on coral reef fishes DOI Open Access

GR Russ,

Kelsey I. Miller,

JR Rizzari

et al.

Marine Ecology Progress Series, Journal Year: 2015, Volume and Issue: 529, P. 233 - 248

Published: March 6, 2015

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 529:233-248 (2015) - DOI: https://doi.org/10.3354/meps11246 Long-term no-take marine reserve and benthic habitat effects on coral reef fishes Garry R. Russ1,2,*,**, Kelsey I. Miller1,**, Justin Rizzari1,2, Angel C. Alcala3 1College of Environmental Sciences, James Cook University, Townsville, Queensland 4811, Australia 2Australian Research Council Centre Excellence for Coral Reef Studies, 3Angelo King Center Management, Silliman Dumaguete City, 6200, Philippines **Corresponding author: [email protected]**These authors contributed equally this work. ABSTRACT: No-take reserves (NTMRs) are advocated as tools enhance or maintain density assemblage structure fishes. These fish population attributes may be affected by both NTMR protection change. Before-after-control-impact-pair (BACIP) sampling designs long-term (8-30 yr) monitoring at 4 Philippine NTMRs were used examine relative change densities structures fishery-targeted (Lethrinidae Lutjanidae) non-targeted (Pomacentridae) Targeted increased significantly in fished control sites all over time. Non-targeted hard cover displayed a variety patterns time (unrelated protection), but closely mirrored each other. considered potential predators fish. Availability prey had larger influence than effect prey, with processes much weaker Multivariate analyses temporal data indicated that 65.8% variance pomacentrids was explained variables (structural complexity, dead substrate) whereas alone only 9.7%. In contrast, 36.2% targeted lethrinids/lutjanids duration (42.2% excluding typhoons one reserve), explaining 24.7%. results help clarify protection, change, trophic interactions fishing. KEY WORDS: · Benthic Target non-target Fishing Fish Predation Full text pdf format Supplementary material PreviousNextCite article as: Russ GR, Miller KI, Rizzari JR, Alcala AC Mar Ecol Prog Ser 529:233-248. Export citation Tweet linkedIn Cited Published Vol. 529. Online publication date: June 08, 2015 Print ISSN: 0171-8630; 1616-1599 Copyright © Inter-Research.

Language: Английский

Citations

63
Establishment of Community Managed Fisheries’ Closures in Kenya: Early Evolution of theTengefuMovement DOI
Tim R. McClanahan, Nyawira A. Muthiga,

Caroline Abunge

et al.

Coastal Management, Journal Year: 2016, Volume and Issue: 44(1), P. 1 - 20

Published: Jan. 2, 2016

Community-based management (CBM) could be an essential tool to prevent the depletion of marine resources in Western Indian Ocean region. In Kenya, political pressure strengthen local governance, has led adoption CBM as a way reducing over-exploitation and managing competing uses impacts on environment. Several communities Kenya have embraced set aside or closed previously fished areas enhance recovery fisheries biodiversity. These community closures (locally called tengefu), despite being degraded, may recover finfish abundances biodiversity levels similar established MPAs above thresholds for maintaining some ecological services. Communities see their direct involvement control these tengefu more likely result benefits flowing directly them. Community are also important articulating resolving values strengthening capacity. Here, we describe evolution movement combine information from focus group discussions, interviews, underwater surveys boundary marking evaluate current status, opportunities challenges facing tengefu. We show that cases suffer slow incomplete national legislative processes, compliance, weak management.

Language: Английский

Citations

41
Trophic distribution of nutrient production in coral reef fisheries DOI
James P. W. Robinson, Emily S. Darling, Eva Maire

et al.

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2023, Volume and Issue: 290(2008)

Published: Oct. 3, 2023

Coral reef fisheries supply nutritious catch to tropical coastal communities, where the quality of seafood is determined by both rate biomass production and nutritional value fishes. Yet our understanding typically uses targets total fish rather than individual growth (i.e. production) nutrient content fish), limiting ability management sustain productivity catches. Here, we use modelled coefficients concentrations develop a new metric coral We then evaluate this with underwater visual surveys assemblages from four countries examine food webs. Species' were associated nutrients that vary body size (calcium, iron, selenium zinc), but not density. When integrated abundance data, find herbivorous species dominate standing biomass, turnover on reefs. Such bottom-heavy trophic distributions consistent across gradients fishing pressure benthic composition. conclude restrictions promote sustainability herbivores other low trophic-level can critical security over 500 million people in tropics.

Language: Английский

Citations

13
Can Herbivore Management Increase the Persistence of Indo-Pacific Coral Reefs? DOI Creative Commons
Ivor D. Williams, Tye L. Kindinger, Courtney S. Couch

et al.

Frontiers in Marine Science, Journal Year: 2019, Volume and Issue: 6

Published: Sept. 10, 2019

Due to climate change, coral reefs have experienced mass bleaching and mortality events in recent years. Although are unlikely persist their current form unless change can be addressed, local management a role play by extending the time frame over which there functional reef systems capable of recovery. Here we consider potential application one – herbivorous fishes. The premise behind this approach is that increased herbivory could shift algal assemblages states benign or beneficial for corals, thereby increasing corals' ability recover from destructive such as thrive periods between events. With focus on Indo-Pacific reefs, review what known about underlying processes coral-algal competition ultimately affect corals grow, persist, replenish themselves. We then critically assess evidence effectiveness otherwise herbivore within marine protected areas (MPAs) better understand why many MPAs not improved outcomes more importantly identify circumstances would most likely effective. Herbivore panacea, but has enhance persistence right circumstances. Those include that: (i) absent management, an 'algal problem' i.e. insufficient maintain algae corals; (ii) actions able increase net herbivory. As corallivory potentially widespread negative consequence some problem well solutions. Because effects certain greatest settlement early survivorship, it may maintaining sufficient particularly important promoting recovery bleaching. Thus, part wider strategy manage reduce threats currently imperil reefs.

Language: Английский

Citations

30
Sea urchins (diadematids) promote coral recovery via recruitment on Taiwanese reefs DOI
Yoko Nozawa, Che‐Hung Lin, Pei‐Jie Meng

et al.

Coral Reefs, Journal Year: 2020, Volume and Issue: 39(4), P. 1199 - 1207

Published: May 20, 2020

Language: Английский

Citations

30
12. Habitat restoration and creation DOI
Ann Thornton, William H. Morgan, Eleanor Bladon

et al.

Open Book Publishers, Journal Year: 2025, Volume and Issue: unknown, P. 171 - 206

Published: April 21, 2025

This chapter summarizes evidence for the effectiveness of actions to restore or create habitat corals. Actions include using natural materials restore/repair/create corals; stabilizing damaged broken reefs; and structures made from unnatural

Language: Английский

Citations

0
14. Education and awareness DOI
Ann Thornton, William H. Morgan, Eleanor Bladon

et al.

Open Book Publishers, Journal Year: 2025, Volume and Issue: unknown, P. 357 - 358

Published: April 21, 2025

This chapter highlights the complexities of human behaviour and how education awareness coral conservation could lead to change needed mitigate considerable threats facing reefs.

Language: Английский

Citations

0