Impacts of Climate Change on Marine Resources in the Pacific Island Region

Johnson, J. E.; Allain, Valérie; Basel, Britt; Bell, Johann D.; Chin, Andrew; Dutra, Leo X.C.; Hooper, Eryn; Loubser, David; Lough, Janice; Moore, Bradley R.; Nicol, Simon

doi:10.1007/978-3-030-32878-8_10

Cited by 13 publications

(13 citation statements)

References 175 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Together with other Pacific Island countries that are Parties to the Nauru Agreement (PNA), Kiribati, Marshall Islands, Tokelau and Tuvalu have responded to climate variability and change through the “vessel day scheme” (VDS), which enables the benefits of purse‐seine fishing within their combined EEZs to be distributed equitably among them, regardless of where the fish are caught (Aqorau et al, 2018; Johnson et al, 2020). Nevertheless, under RCP8.5 by 2050, tuna biomass within the combined EEZs of PNA members is likely to decrease because conditions for tuna will become more favorable further east in high‐seas areas (SPC, 2019).…”

Section: Current and Future Climate Threats To Habitability Pillarsmentioning

confidence: 99%

Risks to future atoll habitability from climate‐driven environmental changes

Duvat

Magnan

Perry

et al. 2021

WIREs Climate Change

Self Cite

View full text Add to dashboard Cite

Recent assessments of future risk to atoll habitability have focused on island erosion and submergence, and have overlooked the effects of other climate‐related drivers, as well as differences between ocean basins and island types. Here we investigate the cumulative risk arising from multiple drivers (sea‐level rise; changes in rainfall, ocean–atmosphere oscillations and tropical cyclone intensity; ocean warming and acidification) to five Habitability Pillars: Land, Freshwater supply, Food supply, Settlements and infrastructure, and Economic activities. Risk is assessed for urban and rural islands of the Pacific and Indian Oceans, under RCP2.6 and RCP8.5, in 2050 and 2090, and considering a moderate adaptation scenario. Risks will be highest in the Western Pacific which will experience increased island destabilization together with a high threat to freshwater, and decreased land‐based and marine food supply from reef‐dependent fish and tuna and tuna‐like resources. Risk accumulation will occur at a lower rate in the Central Pacific (lower pressure on land, with more limited cascading effects on other Habitability Pillars; increase in pelagic fish stocks) and the Central Indian Ocean (mostly experiencing increased land destabilization and reef degradation). Risk levels will vary significantly between urban islands, depending on geomorphology and local shoreline disturbances. Rural islands will experience less contrasting risk levels, but higher risks than urban islands in the second half of the century. This article is categorized under: Trans‐Disciplinary Perspectives > Regional Reviews

show abstract

Section: Current and Future Climate Threats To Habitability Pillarsmentioning

confidence: 99%

Risks to future atoll habitability from climate‐driven environmental changes

Duvat

Magnan

Perry

et al. 2021

WIREs Climate Change

Self Cite

View full text Add to dashboard Cite

show abstract

“…1D), that has been linked to a drying trend in the East Asian monsoon (11). Further warming in the region is also expected to reduce coastal fish populations, shift tuna distribution eastward, cause record-breaking high temperatures to occur more often (12) and fundamentally alter coral reefs, with major impacts on biodiversity, Pacific Island communities, and livelihoods (12,13).…”

Section: Introductionmentioning

confidence: 99%

Decadal climate variability in the tropical Pacific: Characteristics, causes, predictability, and prospects

Power

Lengaigne

Capotondi

et al. 2021

Science

122

101

View full text Add to dashboard Cite

show abstract

“…Artisanal fisheries support food security and livelihoods in Pacific Island communities. Nonetheless, many of the region's costal fisheries are overexploited and are threatened by population growth, climate change and inadequate fisheries management (Adams et al ., 1996; Johnson et al ., 2020b). A review of these challenges across the region suggests that instituting appropriate fisheries management actions and developing alternatives to coral reef fisheries is a priority to ensure costal fisheries and the ecosystem services they provide continue to support the people of the Pacific Islands (Bell et al ., 2018).…”

Section: Introductionmentioning

confidence: 99%

The life history of longnose emperors (Lethrinus olivaceus) and a data‐limited assessment of their stock to support fisheries management at Rangiroa Atoll, French Polynesia

Filous¹,

Daxboeck²,

Beguet³

et al. 2022

Journal of Fish Biology

View full text Add to dashboard Cite

The spawning aggregations of coral reef species support artisanal fisheries throughout the Pacific Islands, but they are vulnerable to overexploitation and need improved fisheries management. To this aim, the authors employed a combination of fishery methods including life‐history studies to estimate the age, growth and reproductive parameters of longnose emperor (Lethrinus olivaceus), and a length‐based stock assessment to provide the community of Rangiroa Atoll with an assessment of their longnose emperor spawning aggregation fishery. The von Bertalanffy growth parameters of this species were estimated to be L∞ = 80 (75–87) cm TL, K = 0.18 (0.15–0.24), t0 = −0.82 (−1.43−0.27) with a mean natural mortality rate of 0.309 ± 0.038. The sex ratios observed in this study support the belief that this species exhibits functional protogyny with females reaching sexual maturity at 38 cm TL and approximately 3 years of age, and sex change occurring at approximately 45 cm TL and 4 years of age. The spawning potential ratio (SPR) of the longnose emperor stock was estimated to be between 19% and 28% across the years of this study, and simulations of SPR and yield per‐recruit indicate that if the community wanted to conserve >30% of the stock's SPR, the ideal minimum size limit for this species is 50 cm TL. The results provide the baseline life‐history information required to evaluate the fisheries for this species in the South Pacific region and support community‐led management actions for this spawning aggregation fishery on Rangiroa Atoll.

show abstract

Impacts of Climate Change on Marine Resources in the Pacific Island Region

Cited by 13 publications

References 175 publications

Risks to future atoll habitability from climate‐driven environmental changes

Risks to future atoll habitability from climate‐driven environmental changes

Decadal climate variability in the tropical Pacific: Characteristics, causes, predictability, and prospects

The life history of longnose emperors (Lethrinus olivaceus) and a data‐limited assessment of their stock to support fisheries management at Rangiroa Atoll, French Polynesia

Contact Info

Product

Resources

About