Adaptations to maintain the contributions of small-scale fisheries to food security in the Pacific Islands

Bell, Johann D.; Cisneros‐Montemayor, Andrés M.; Hanich, Quentin A; Johnson, J. E.; Lehodey, Patrick; Moore, Bradley R.; Pratchett, Morgan S.; Reygondeau, Gabriel; Senina, Inna; Virdin, John; Wabnitz, Colette C.C.

doi:10.1016/j.marpol.2017.05.019

Cited by 75 publications

(48 citation statements)

References 65 publications

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“…Changes in the distribution of tuna in different countries may have implications for global food security and strongly impact many tropical communities, which are strongly dependent on local fishing resources (Allison et al., ; Bell, Cisneros‐Montemayor, et al., ; Cheung et al., ). Thus, the generation of knowledge on the most vulnerable countries to climate change is an important research task.…”

Section: Discussionmentioning

confidence: 99%

Large‐scale distribution of tuna species in a warming ocean

Erauskin-Extramiana

Arrizabalaga

Hobday

et al. 2019

Global Change Biology

105

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Tuna are globally distributed species of major commercial importance and some tuna species are a major source of protein in many countries. Tuna are characterized by dynamic distribution patterns that respond to climate variability and long‐term change. Here, we investigated the effect of environmental conditions on the worldwide distribution and relative abundance of six tuna species between 1958 and 2004 and estimated the expected end‐of‐the‐century changes based on a high‐greenhouse gas concentration scenario (RCP8.5). We created species distribution models using a long‐term Japanese longline fishery dataset and two‐step generalized additive models. Over the historical period, suitable habitats shifted poleward for 20 out of 22 tuna stocks, based on their gravity centre (GC) and/or one of their distribution limits. On average, tuna habitat distribution limits have shifted poleward 6.5 km per decade in the northern hemisphere and 5.5 km per decade in the southern hemisphere. Larger tuna distribution shifts and changes in abundance are expected in the future, especially by the end‐of‐the‐century (2080–2099). Temperate tunas (albacore, Atlantic bluefin, and southern bluefin) and the tropical bigeye tuna are expected to decline in the tropics and shift poleward. In contrast, skipjack and yellowfin tunas are projected to become more abundant in tropical areas as well as in most coastal countries' exclusive economic zones (EEZ). These results provide global information on the potential effects of climate change in tuna populations and can assist countries seeking to minimize these effects via adaptive management.

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Section: Discussionmentioning

confidence: 99%

Large‐scale distribution of tuna species in a warming ocean

Erauskin-Extramiana

Arrizabalaga

Hobday

et al. 2019

Global Change Biology

105

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“…Additionally, due to climate change, it is expected that coastal fisheries, which supply most of the local population, will decrease in productivity. Increases in ocean warming and acidification will directly affect fish stocks; and projected loss of coral reefs, mangroves and seagrasses will have further impacts through the loss of habitats and disruptions to the food systems on which the fish depend (Bell & Taylor, 2015;Bell et al, 2018;Bell et al, 2013). It is estimated that the productivity of coral reef fisheries will decline by 20% by 2050, under current climate change scenarios (Bell et al, 2018).…”

Section: Domain 2: Climate Change Resilience and Healthmentioning

confidence: 99%

Our people, our food, our planet

Conn¹,

Camnmock²,

Ford³

et al. 2020

pacifichealth

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Video link: Our people, our food, our planet: Sustainable food systems policy in the Pacific Pacific Island Countries and Territories are facing a health crisis with non communicable diseases (NCDs) currently accounting for more than 80% of deaths. In the 21st century, advances in health intervention and policy render this figure unacceptable. Multiple risk factors contribute to the NCD crisis; a leading driver being obesity due to changing dietary practices arising from the global food system. A system which is dominated by processed foods high in starch and sugars. This situation is compounded by changes in the natural and built environments relating to climate change. Tackling this issue is beyond the sole domain of public health and is, therefore, more suited to a planetary health approach. This paper applies a sustainable food systems approach to analysing NCD policy developments in the Pacific region. In particular, three domains of policy which impact diets in the Pacific are examined: food production, climate change and sustainability, and trade. It is argued that countering the NCD crisis demands a global multisectoral approach, with governments leading the way, to develop integrated policy and interventions that will secure the future wellbeing and protection of our people, our food, our planet.

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“…Overall reefs recover following disturbance events (Chin et al, 2011), where reefs subjected to pollution and overfishing are slower in the recovery process (Zann, 1994). Some coastal fringing reefs exhibit signs of degradation due to pollution and overfishing driven by coastal development and population growth (Chin et al, 2011;Veitayaki and Ledua, 2016;Bell et al, 2017).…”

Section: Research Contextmentioning

confidence: 99%

Carbonate sediments from Maui bay (coral coast, Fiji) reflect importance of coral reef conservation

Shadrack

Pohler²,

Dutra

et al. 2020

Ocean & Coastal Management

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This study describes the origin and characteristics of unconsolidated coral reef sediments from Maui Bay (Coral Coast, Viti Levu Island, Fiji), a site declared under customary law as Marine Protected Area (MPA) by traditional owners in Tagaqe village since the year 2000. Sediment samples were collected from five transect lines and analysed in the laboratory through drying process and sieving to fractional sizes. The results show that sediments from Maui Bay MPA are composed of very coarse sand (mean sediment size of 1.5 mm) mostly constituted of coral fragments (e.g. Seriatopora spp. and Porites spp.; coral fragments in ≥50% of grains) followed by other smaller particles of calcareous organisms (foraminifera and molluscs, 10-36% of the grains). As expected, siliciclastic sediments are most abundant near the mouth of a creek which brings in sediments from the mountainous hinterland. A comparison of Maui Bay with a non-protected fringing reef with very similar bathymetry at Tabua Sands (qualitative data) along the Coral Coast shows that the non-protected site is rich in brown algae with mostly dead corals. The darkish colour and smell of rotten eggs emanating from sediments collected at Tabua Sands suggests anoxic conditions at shallow sediment depth. This is in contrast to the clean white sediments encountered at Maui Bay indicating healthier coral reefs, which shows the importance and success of protection measures implemented here.

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Adaptations to maintain the contributions of small-scale fisheries to food security in the Pacific Islands

Cited by 75 publications

References 65 publications

Large‐scale distribution of tuna species in a warming ocean

Large‐scale distribution of tuna species in a warming ocean

Our people, our food, our planet

Carbonate sediments from Maui bay (coral coast, Fiji) reflect importance of coral reef conservation

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