Assessment of the Present Status of the Red Sea Coastal Zone Between Haql and Yanbu, Saudi Arabia

Hariri, Mohammad S. B.; Khalil, Mona; Rifaat, Ahmed E.

doi:10.4197/mar.24-2.8

Cited by 7 publications

(5 citation statements)

References 28 publications

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“…Several study sites having low hard coral cover, human impacts are evident from habitation, tourism and fishing activity and have been identified as local threats. Several anthropogenic factor cause damage to corals (Dinsdale and Harriot, 2004) such as destructive fishing (Fenner, 2012) and coral mining (Hariri, 2012). Local fishermen around Pramuka Island are still using muroami to collect fish and Iskandar (2011) has reported several fishermen in Seribu islands are still using muroami.…”

Section: Discussion 321 Hard Coral Covermentioning

confidence: 99%

Assessing fish community structure at two different coral reef depths around Seribu Islands, Jakarta

Fahlevy¹,

Yudha²,

Andika³

et al. 2018

JIKK

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Coral reefs structure play important roles for reef fish assemblages. Coral coverage and reef fish abundance are associated with the positive relationship. However, the relationship between reef fish abundance and composition and depth variation around Pramuka Island is poorly known. This study was carried out to investigate the biodiversity and the trophic level of fish communities between two different depths (3 and 10 m) around Pramuka Island regions (Pramuka Island and Sekati Island). The hard coral at the depth of 10 m within both study sites in Pramuka island held significantly higher percent cover than the depth of 3 m except in Dock 2 A total of 2620 individual fishes were counted, belonging to 58 species and 13 families. The fish community in 3 and 10 depth was dominated by omnivorous fishes. The multivariate analysis of fish abundance using the Bray Curtis similarity index and non-metric multidimensional scaling (NMDS) clearly showed the clustering of two different depths. The NMDS results showed that at the depth of 10 m are more clustered than 3 m depth. The present study results showed that the biodiversity of reef fishes around Pramuka Island seemed to be linked to the hard coral condition and depth.

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Section: Discussion 321 Hard Coral Covermentioning

confidence: 99%

Assessing fish community structure at two different coral reef depths around Seribu Islands, Jakarta

Fahlevy¹,

Yudha²,

Andika³

et al. 2018

JIKK

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“…There are several causes of coral mortality such as the changes of environmental, human (Riegl et al, 2012), competition with algae (Subhan et al, 2014) and disease (Baird et al, 2012;Subhan et al, 2011). Overfishing and destructive fishing, ship anchor, coral mining are the examples of the human factor on coral mortality (Hariri, 2012). The risk of coral mortality are the increasing of wave energy reaching the island shores (Sheppard et al, 2005).…”

Section: Discussionmentioning

confidence: 99%

Site and depth influence on coral reef structure and composition in Seribu Islands, Jakarta

Fahlevy¹,

Khodijah²,

Nasrullah³

et al. 2017

ACEH J ANIM SCI

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The coral reefs structure and composition are influenced by environmental condition and depth. Therefore, this study was conducted to find and examine the influence of site and depth on coral reef structures in Pramuka Island regions, Seribu Islands, located in the northern of Jakarta. The study was carried out from November to December 2016. The data was taken by Line Intercept Transect Method which is laid 20 meters x 3 replicated parallels with shoreline at the depth of 3 and 10 meters. The hard coral at the depth of 3 m within both study sites in Pramuka island held higher percent cover than the depth of 10 m except in North of Pramuka. Coral mortality index varied and ranged from 0.39 to 0.98. West of Pramuka Island dominant hasthe lowest value of mean number of families, genera, and life form. Percentage of hard coral cover, coral mortality index, mean numberof family, genera, and life form differed significantly between sites. The different of depth only affecting the percentage of coral cover and mean number of life form. Corals have a limiting factor which are affected their development and growth.

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“…Benthic surveys at Yanbu in 2008 reported live coral cover of only ~ 20%, with Pocillopora, Porites, and Acropora, the most abundant genera (Riegl et al 2012;Bruckner and Dempsey 2015). Subsequent assessments reported generally increasing coral cover of between 16 and 53% in 2012 (Hariri 2012), 25% in 2014 and 45% from 2017 to 2019 (Anton et al 2020). The significant increase in coral cover from 2014 to 2019 (Anton et al 2020) suggests that among the four regions we sampled, Yanbu was the least impacted by recent bleaching events, and that subsequent recovery occurs generally within a decade (Anton et al 2020).…”

Section: Coral Abundance and Recovery In The Northern Red Seamentioning

confidence: 99%

Variable response of Red Sea coral communities to recent disturbance events along a latitudinal gradient

et al. 2021

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Coral reefs are experiencing a dramatic loss of hard coral abundance and associated habitat structure from a myriad of local and global factors. Here, utilizing U-Th radiometric age-dating of coral death assemblages, we investigated patterns of coral mortality from the eastern margin of the Red Sea along a latitudinal gradient (Yanbu, 24 o N; Thuwal, 22 o N; Al-Lith, 19 o N; Farasan Banks, 18 o N) in 2018 and 2019. In all four regions, radiometric ages of in situ dead Acropora and Pocillopora colonies were largely confined to the late twentieth and early twenty-first century. During the early twenty-first century, coral mortality was found to be synchronous with previously documented bleaching events in 2010 and 2015 and, at one site (Farasan Banks), an outbreak of crown-of-thorns starfish (COTS) in 2009. The most northern site, Yanbu, had the highest relative percentage of live coral (42 ± 4%) and of living Acropora, and may serve as a refugium under climate warming scenarios. For the three southern regions (Thuwal, Al-Lith, Farasan Banks) benthic structure was mostly comprised of dead corals. The southernmost survey site, Farasan Banks, underwent a dramatic change in coral benthic structure associated with a COTS outbreak in 2009 and a bleaching event in 2015, and had the lowest relative percentage of live coral (6 ± 2%), comprised mostly of massive Porites, with no live Acropora or Pocillopora. Our results highlight the asynchronous impact of disturbance events on eastern Red Sea coral reefs and emphasize regional differences in recovery and ecosystem state. KeywordsCoral bleaching • Radiometric (U-Th) age-dating • Saudi Arabia • Life and death assemblages Responsible Editor: S. Harii.

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Assessment of the Present Status of the Red Sea Coastal Zone Between Haql and Yanbu, Saudi Arabia

Cited by 7 publications

References 28 publications

Assessing fish community structure at two different coral reef depths around Seribu Islands, Jakarta

Assessing fish community structure at two different coral reef depths around Seribu Islands, Jakarta

Site and depth influence on coral reef structure and composition in Seribu Islands, Jakarta

Variable response of Red Sea coral communities to recent disturbance events along a latitudinal gradient

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