Regional extinction risks for marine bony fishes occurring in the Persian/Arabian Gulf

Buchanan, Jack R.; Ralph, Gina M.; Krupp, F.; Harwell, Heather; Abdallah, Mohamed; Abdulqader, Ebrahim A.A.; Al-Husaini, M.; Bishop, James M.; Burt, John A.; Choat, J. Howard; Collette, Bruce B.; Feary, David A.; Hartmann, Stanley Alexander; Iwatsuki, Yukio; Kaymaram, Farhad; Larson, Helen K.; Matsuura, Keiichi; Motomura, Hiroyuki; Munroe, Thomas A.; Russell, Barry C.; Smith-Vaniz, William F.; Williams, Jeffrey; Carpenter, Kent E.

doi:10.1016/j.biocon.2018.11.027

Cited by 36 publications

(23 citation statements)

References 47 publications

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“…Overall, the sRLI for marine shes is the highest of the Red List indices calculated so far (bar the historical index estimated for reef-building corals pre-1998 24 ). Our estimate of 4.7% of marine sh threatened with extinction is lower than threat levels found in other studies on extinction risk of marine shes: regional shore shes (5-9.4% 41,46 ), sharks and rays (17.4% 34 ), hag shes (12% 30 ), groupers (12% 33 ), tarpons, lady shes and bone shes (12.5% 35 ), porgies (8.6% 37 ), and puffer shes (7.9% 38 ). But we are not surprised as threat tends to be greatest in shallower waters and a random sample of marine shes will have disproportionately greater deepwater species than the shallowwater taxa that have dominated early assessment priorities.…”

Section: Discussioncontrasting

confidence: 76%

Monitoring Extinction Risk and Threats of the World’s Fishes based on the Sampled Red List Index

Miranda¹,

Miqueleiz²,

Darwall³

et al. 2020

Preprint

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Global biodiversity targets require us to identify species at risk of extinction and quantify status and trends of biodiversity. The Red List Index (RLI) tracks trends in the conservation status of entire species groups over time by monitoring changes in categories assigned to species. Here, we calculate this index for the world’s fishes in 2010, using a sampled approach to the RLI based on a randomly selected sample of 1,500 species, and also present RLI splits for freshwater and marine systems separately. We further compare specific traits of a worldwide fish list to our sample to assess its representativeness. Overall, 15.1% of species in the sample were estimated to be threatened with extinction, resulting in an sampled RLI of 0.914 for all species, 0.972 in marine and 0.860 in freshwater ecosystems. Our sample showed fishing as the principal threat for marine species, and pollution by agricultural and foresty effluents for freshwater fishes. The sampled list provides a robust representation for tracking trends in the conservation status of the world’s fishes, including disaggregated sampled indices for marine and freshwater fish. Reassessment and backcasting of this index is urgent to check the achievement of the commitments proposed in global biodiversity targets.

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Section: Discussioncontrasting

confidence: 76%

Monitoring Extinction Risk and Threats of the World’s Fishes based on the Sampled Red List Index

Miranda¹,

Miqueleiz²,

Darwall³

et al. 2020

Preprint

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“…The main impacts on biodiversity in Kuwait are coastal developments and coastal activity removing or damaging coastal and nearshore habitats, sewage inputs impacting water quality and fishing affecting vulnerable species and habitats (Devlin et al, 2015b). Future trajectories of coral reefs, seagrass beds, coastal habitats, turtles, seabirds and fish are likely to show a continued decline in status (Al-Mohanna et al, 2014;Buchanan et al, 2019;Rees et al, 2013;Sheppard et al, 2012;Sheppard, 1995;Wabnitz et al, 2018). Confidence in the assessment and prediction of trajectories for sharks, rays, whales, dolphins and impacts from alien species is low, reflecting a lack of knowledge on both the current state and the impacts of future pressures (Table 5) (Burt et al, 2016;Burt et al, 2013;Gholoum et al, 2019;Sheppard, 2016;Sheppard et al, 2012) with particular concern over the capacity for recovery given ongoing bleaching events in the Gulf (Ben-Hasan and Christensen, 2019; Burt et al, 2019;Paparella et al, 2019).…”

Section: Biodiversitymentioning

confidence: 99%

“…Assessments were based on declining catches reported in landings data over the last 20 years Pampus argenteus declined by >90% in the period 1995 to 2007, with their overall contribution to landings declining from 32% to 6% over this period (Sheppard et al 2010). The proportion of marine bony fishes which are regionally threatened is 8.2%, twice the proportion of other regions where similar assessments have occurred (Buchanan et al, 2019). This number increases in nearshore areas with the decline exacerbated by coastal development and loss of habitat (Buchanan et al, 2019).…”

Section: Commercial Fisheriesmentioning

confidence: 99%

Principles to enable comprehensive national marine ecosystem status assessments from disparate data: The state of the marine environment in Kuwait

Lyons

Bacon

Edmonds

et al. 2019

Estuarine, Coastal and Shelf Science

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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“…As P. trichrourus populations live for five months of the year above their predicted thermal optimum (Jun–Oct, mean SST >30°C) (Kaschner et al 2016), of which two months encompass temperatures above the mortality threshold of low latitude Indo-Pacific damselfish (July and August, mean SST ≥ 33°C) (Nilsson et al 2009; Munday et al 2009; Rummer et al 2014; Rodgers et al, 2018), Gulf populations may already be living close to their upper thermal limits; further increases in temperature are expected to pose a serious threat to population persistence. In addition, P. trichrourus populations in the Gulf are already considered endangered, associated with a fragmented distribution and strong dependence to diminishing coral habitat resources (Buchanan et al 2016; 2019). Indeed, Pomacentrus trichrourus are highly associated with live coral colonies, utilising them for recruitment, shelter and as trophic resources (Buchanan et al 2016; Shraim et al 2017).…”

Section: Discussionmentioning

confidence: 99%

The influence of thermal extremes on coral reef fish behaviour in the Persian Gulf

D’Agostino¹,

Burt

Reader³

et al. 2019

Preprint

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Despite increasing environmental variability within marine ecosystems, little is known about how coral reef fish species will cope with future climate scenarios. The Arabian/Persian Gulf is an extreme environment, providing an opportunity to study fish behaviour on reefs with seasonal temperature ranges which include both values above the mortality threshold of Indo-Pacific reef fish, and values below the optimum temperature for growth. Summer temperatures in the Gulf are comparable to those predicted for the tropical ocean by 2090-2099. Using field observations in winter, spring and summer, and laboratory experiments, we examined the foraging activity, distance from refugia and resting time of Pomacentrus trichrourus (pale-tail damselfish). Observations of fish behaviour in natural conditions showed that individuals substantially reduced distance from refugia and feeding rate and increased resting time at sub-optimal environmental temperatures in winter (average SST = 21°C) and summer (average SST = 34°C), while showing high movement and feeding activity in spring (average SST= 27°C). Diet was dominated by plankton in winter and spring, while fish used both plankton and benthic trophic resources in summer. These findings were corroborated under laboratory conditions: in a replicated aquarium experiment, time away from refugia and activity were significantly higher at 28°C (i.e., spring temperature conditions) compared to 21 °C (i.e., winter temperature conditions). Our findings suggest that P. trichrourus may have adapted to the Arabian/Persian Gulf environment by downregulating costly activity during winter and summer and upregulating activity and increasing energy stores in spring. Such adaptive behavioural plasticity may be an important factor in the persistence of populations within increasing environmentally variable coral reef ecosystems.

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Regional extinction risks for marine bony fishes occurring in the Persian/Arabian Gulf

Cited by 36 publications

References 47 publications

Monitoring Extinction Risk and Threats of the World’s Fishes based on the Sampled Red List Index

Monitoring Extinction Risk and Threats of the World’s Fishes based on the Sampled Red List Index

Principles to enable comprehensive national marine ecosystem status assessments from disparate data: The state of the marine environment in Kuwait

The influence of thermal extremes on coral reef fish behaviour in the Persian Gulf

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