Spatial and temporal dynamics of Arabian Gulf coral assemblages quantified from remote-sensing and in situ monitoring data

Purkis, Samuel J.; Riegl, Bernhard

doi:10.3354/meps287099

Cited by 120 publications

(55 citation statements)

References 53 publications

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“…Many prior lidar applications to benthic mapping have focused on coral reef tracts, as those rich environments are typically proximal to land and sit in clear shallow waters that are amenable to optical mapping techniques (Brock et al, 2004(Brock et al, , 2006a(Brock et al, , 2006b(Brock et al, , 2008Purkis, 2005;Purkis and Pasterkamp, 2004;Purkis and Riegl, 2005;Purkis, Myint, and Riegl, 2006). The aggradation of coral reefs creates bottom roughness, resulting in topographic complexity ranging from centimeters to kilometers in spatial scale that both influences and reflects many ecological variables.…”

Section: Submarine Coastal Benthic Applicationsmentioning

confidence: 99%

Synergy of Airborne Digital Camera and Lidar Data to Map Coastal Dune Vegetation

Kempeneers¹,

Deronde

Provoost

et al. 2009

Journal of Coastal Research

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Section: Submarine Coastal Benthic Applicationsmentioning

confidence: 99%

Synergy of Airborne Digital Camera and Lidar Data to Map Coastal Dune Vegetation

Kempeneers¹,

Deronde

Provoost

et al. 2009

Journal of Coastal Research

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“…As a result, while individual corals here are fecund, reef-wide reproductive output for a variety of dominant coral species is low as a consequence of the limited number of fecund adults in the community (Howells et al, 2016), potentially explaining the absence of coral settlers on tiles and the relatively low overall juvenile recruitment rates observed by Pratchett et al (2017). It should be noted, however, that recovery on highly disturbed reefs typically takes 10-15 years (Purkis and Riegl, 2005;Burt et al, 2008;Ateweberhan et al, 2011), even in areas where larval supply remains depressed for up to 6 years (Gilmour et al, 2013). As the current study was performed 8 years after the catastrophic HAB event, this suggests that there is hope that recovery may occur in the near future.…”

Section: Coral Settlement Patternsmentioning

confidence: 92%

Settlement Patterns of Corals and other Benthos on Reefs with Divergent Environments and Disturbances Histories around the Northeastern Arabian Peninsula

2017

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Larval supply is a principal factor determining the establishment, structure, and diversity of sessile benthic assemblages on coral reefs. Benthic reef communities in north-eastern Arabia have been subject to recurrent disturbances in recent years, and subsequent recovery will be, in part, driven by variation in the supply of available colonists. Using settlement tiles deployed seasonally over 1 year at eight sites encompassing three environmentally divergent regions (southern Arabian Gulf, the Musandam Peninsula in the Strait of Hormuz, and the Sea of Oman) we assessed spatial and seasonal variability in settlement of benthic reef organisms. There was strong spatial variation in composition of new colonists among regions, mainly driven by the high abundance of coralline algae in the Arabian Gulf, colonial ascidians on the Musandam Peninsula and barnacles in the Sea of Oman. Seasonal differences in composition of new colonists were less important than regional differences, with seasonal variation in settlement not consistent among regions. The number of corals settling to the tiles was low compared to those reported for other regions, with mean densities ranging from 0 corals m −2 year −1 in the Sea of Oman to 30 (± 0.6 SE) and 38 (± 0.5 SE) in Musandam and the Arabian Gulf, respectively. Peak coral settlement abundance in the Gulf occurred in summer and autumn and in Musandam in spring (averaging 82 and 70 settlers m −2 year −1 , respectively, during the peak settlement season). This work provides the first record of large-scale spatial and seasonal patterns of settlement in north-eastern Arabia and provides valuable information on the supply of settlers available to recolonize heavily disturbed reefs in this region. The extremely low rates of coral settlement suggest that these marginal reefs are likely to be extremely slow to recover from on-going and future disturbances.

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“…Kombinasi citra satelit dan foto udara mampu melakukan pengamatan dalam jangka panjang dan kontinyu untuk pemetaan terumbu dan deteksi perubahan (Lewis, 2002, Palandro et al, 2003, Purkis and Riegl, 2005.…”

Section: Pendahuluanunclassified

“…Perubahan bentuk terumbu yang diinterpretasi dari peta-peta berbasis citra dapat digunakan untuk menduga dinamika karakteristik ekologi dan geomorfologi. Purkis and Riegl (2005) melakukan pengamatan perkembangan komunitas karang di Teluk Arabian setelah beberapa kali peristiwa kematian masal karang akibat pemutihan (coral bleaching). Palandro et al (2008) juga mendokumentasikan perubahan habitat terumbu karang di Florida Keys menggunakan citra penginderaan jauh dan survey in-situ dalam dua skala berbeda.…”

Section: Pendahuluanunclassified

Change Detection of Coral Reef Habitat Using Landsat Imagery in Morotai Island North Maluku Province

Wahiddin¹,

Siregar²,

Nababan³

et al. 2015

J. Ilmu dan Teknologi Kelautan Tropis

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Scientific information on coral reef habitat changes of Morotai island is very limited to none. This study aimed to detect the change of coral reef habitats between 1996 and 2013, using -14.1%, -14.9%, and -16.6%, respectively. In 2002-2013, mixed-habitat, sand ABSTRAKInformasi ilmiah terkait perubahan habitat terumbu karang di pulau Morotai sangat terbatas bahkan belum ada sampai saat ini. Penelitian ini bertujuan untuk mendeteksi perubahan habitat terumbu karang dalam kurun waktu 17 tahun (1996-2013) menggunakan seri citra Landsat yang diintegrasikan dengan data pengamatan lapangan tahun 2012. Penelitian ini dilaksanakan di kawasan terumbu karang pulau Morotai Propinsi Maluku Utara menggunakan data Landsat 5TM (1996), Landsat 7ETM+ (2002) dan Landsat 8 OLI (2013). Analisis deteksi perubahan menggunakan teknik klasifikasi terbimbing dan normalisasi band transformasi depth invariant index (DII) untuk lima kelas habitat yaitu kelas campuran, karang hidup, lamun, pasir, dan pecahan karang. Deteksi perubahan dideskripsikan berdasarkan perubahan habitat antar waktu maupun perubahan luas habitat antara tahun 1996-2002 dan 2002-2013. Analisis deteksi perubahan menunjukan bahwa dalam kurun waktu 1996-2002 luas kelas campuran dan pecahan karang meningkat sebesar 11,3% dan 32,5%, luas kelas pasir, lamun, dan karang hidup berkurang masing-masing sebesar -14,1%, -14,9% dan -16,6%. Sedangkan tahun 2002-2013, luas kelas campuran, pasir, dan lamun meningkat masing-masing sebesar 1,1%, 13,3% dan 24,7%, luas kelas pecahan karang dan karang hidup berkurang sebesar -22,7% dan -27,0%. Dalam kurun waktu 17 tahun, kematian terumbu karang sekitar 43,6%. Hal ini mungkin disebabkan peningkatan suhu air laut dan meningkatnya intensitas kegiatan manusia.

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Spatial and temporal dynamics of Arabian Gulf coral assemblages quantified from remote-sensing and in situ monitoring data

Cited by 120 publications

References 53 publications

Synergy of Airborne Digital Camera and Lidar Data to Map Coastal Dune Vegetation

Synergy of Airborne Digital Camera and Lidar Data to Map Coastal Dune Vegetation

Settlement Patterns of Corals and other Benthos on Reefs with Divergent Environments and Disturbances Histories around the Northeastern Arabian Peninsula

Change Detection of Coral Reef Habitat Using Landsat Imagery in Morotai Island North Maluku Province

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