Geology of Hawaii Reefs

Fletcher, Charles H.; Bochicchio, Christopher; Conger, Christopher L.; Engels, Mary; Feirstein, Eden J.; Frazer, L. Neil; Glenn, Craig R.; Grigg, Richard W.; Grossman, Eric E.; Harney, Jodi N.; Isoun, Ebitari; Murray-Wallace, Colin V.; Rooney, John J. B.; Rubin, Kenneth H.; Sherman, Clark; Vitousek, Sean

doi:10.1007/978-1-4020-6847-8_11

Cited by 57 publications

(52 citation statements)

References 57 publications

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“…Sediment dynamics may alter significantly during storms. Sediments can be transported offshore to the top of the wave-eroded fore reef (Fletcher et al, 2008;Grossman et al, 2006) with an increase in the terrigenous component of the sediments due to high riverine discharge (Bothner et al, 2006).…”

Section: Islands With Fringing and Barrier Reefsmentioning

confidence: 99%

Coastal evolution on volcanic oceanic islands: A complex interplay between volcanism, erosion, sedimentation, sea-level change and biogenic production

Ramalho¹,

Quartau

Trenhaile

et al. 2013

Earth-Science Reviews

160

147

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The growth and decay of oceanic hotspot volcanoes are intrinsically related to a competition between volcanic construction and erosive destruction, and coastlines are at the forefront of such confrontation. In this paper, we review the several mechanisms that interact and contribute to the development of coastlines on oceanic island volcanoes, and how these processes evolve throughout the islands' lifetime. Volcanic constructional processes dominate during the emergent island and subaerial shield-building stages. During the emergent island stage, surtseyan activity prevails and hydroclastic and pyroclastic structures form; these structures are generally ephemeral because they can be rapidly obliterated by marine erosion. With the onset of the subaerial shield-building stage, coastal evolution is essentially characterized by rapid but intermittent lateral growth through the formation of lava deltas, largely expanding the coastlines until they, typically, reach their maximum extension. With the post-shield quiescence in volcanic activity, destructive processes gradually take over and coastlines retreat, adopting a more prominent profile; mass wasting and marine and fluvial erosion reshape the landscape and, if conditions are favorable, biogenic processes assume a prominent role. Posterosional volcanic activity may temporarily reverse the balance by renewing coastline expansion, but islands inexorably enter in a long battle for survival above sea level. Reef growth and/or uplift may also prolong the island's lifetime above the waves. The ultimate fate of most islands, however, is to be drowned through subsidence and/or truncation by marine erosion.Keywords complex, interplay, between, volcanism, erosion, sedimentation, sea, level, islands, change, coastal, biogenic, production, oceanic, evolution, volcanic, GeoQuest Disciplines Medicine and Health Sciences | Social and Behavioral Sciences Publication DetailsRamalho, R. S., Quartau, R., Trenhaile, A. S., Mitchell, N. C., Woodroffe, C. D. & Avila, S. P. (2013). Coastal evolution on volcanic oceanic islands: a complex interplay between volcanism, erosion, sedimentation, sealevel change and biogenic production. Earth-Science Reviews, 127 140-170. AbstractThe growth and decay of oceanic hotspot volcanoes are intrinsically related to a competition between volcanic construction and erosive destruction, and coastlines are at the forefront of such confrontation. In this paper, we review the several mechanisms that interact and contribute to the development of coastlines on oceanic island volcanoes, and how these processes evolve throughout the islands' lifetime. Volcanic constructional processes dominate during the emergent island and subaerial shield-building stages. During the emergent island stage, surtseyan activity prevails and hydroclastic and pyroclastic structures form; these structures are generally ephemeral because they can be rapidly obliterated by marine erosion. With the onset of the subaerial shield-building stage, coastal evolution is essentially ch...

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Section: Islands With Fringing and Barrier Reefsmentioning

confidence: 99%

Coastal evolution on volcanic oceanic islands: A complex interplay between volcanism, erosion, sedimentation, sea-level change and biogenic production

Ramalho¹,

Quartau

Trenhaile

et al. 2013

Earth-Science Reviews

160

147

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“…Colony sample, date, depth, and status are listed, with height and holdfast diameter of the host and the gold coral parasite and the height and stem diameter of the host that comprised the core of the skeleton. FFS: French Frigate Shoals colonies seen at Keahole were growing on a young (~250 000 yr) carbonate fossil reef (Jones 1995) drowned by sea level rise and subsidence of the Big Island (Shackleton 1987, Fletcher et al 2008. During this brief geologic instant, the community at the Keahole site had developed to include mature, toppled, and weathered gold coral colonies, indicating that gold coral had been present at the site for many millennia and was still in the process of transforming the host population.…”

Section: Community Patterns and The Process Of Successionmentioning

confidence: 99%

Settlement, colonization, and succession patterns of gold coral Kulamanamana haumeaae in Hawaiian deep coral assemblages

Parrish¹

2015

Mar. Ecol. Prog. Ser.

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The Hawaiian gold coral is a parasitic zoantharian that colonizes other deep corals and secretes a protein skeleton that over millennia can grow and more than double the original mean size of the host colony. Surveys at 6 known coral beds in the Hawaiian Archipelago found mature gold coral to be a common taxon and dominant at the geologically older sites. Fewer than 5% of the gold coral colonies seen were in the process of subsuming their host, described here as the 'midas' phase. Bamboo coral (Acanella, Keratoisis) comprised 85% of the midas colonies, with two-thirds found at the youngest site, where the mean height of bamboo coral was significantly greater than at other sites. Marked midas colonies revisited after 5 yr showed the gold coral tissue spreading across the host at an estimated rate of 2.2 ± 0.69 cm yr −1 (mean ± SD). Cross sections of mature gold coral colonies show the host averages just 9.8 cm of the stem's core, indicating that much of the host skeleton is lost when subsumed by gold coral tissue. The absence of midas colonies in a bamboo coral assemblage found growing on a 76 yr old wreck close (~1 km) to a mature gold coral patch suggests that gold coral recruitment is infrequent. This time lag between the growth of the host and the arrival of the gold coral successor is essential because otherwise the speed of the midas phase would subsume the host population faster than it could replenish.

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“…Porites spp. are the dominant reef-building shallow-water corals throughout the Hawai'ian Archipelago, but their relative abundance decreases with depth due to slower growth rates (Dollar 1982, Grigg 1983, Grigg 2006, Fletcher et al 2008. Below ~70 to 80 m, Leptoseris spp.…”

Section: Introductionmentioning

confidence: 99%

Efficient light harvesting in deep-water zooxanthellate corals

Kahng¹,

Hochberg²,

Apprill³

et al. 2012

Mar. Ecol. Prog. Ser.

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The vertical zonation of dominant megabenthic, photosynthetic taxa suggests that differential photosynthetic capabilities enable specialized, low-light zooxanthellate corals to dominate at depths where shallow-water corals become light limited. This study examines the ecophysiology of deep-water (68−113 m) Leptoseris spp. and shallow-water (2−15 m) Porites spp. zooxanthellate corals from Hawai'i by comparing spectral absorbance properties and photosynthetic pigment concentrations to the available light spectra in their respective environments. Photo synthetically active radiation reaching Leptoseris spp. was 3 to 11% of surface irradiance compared to 41 to 90% reaching Porites spp. Optical measurements indicated that Leptoseris spp. exhibited lower reflectance (i.e. higher absorptance) compared to Porites spp. and were chromatically adapted to the wavelengths of photons available at depth. Despite the decreased spectral reflectance, deep-water Leptoseris spp. exhibited significantly lower areal photosynthetic pigment concentrations than did shallow-water Porites spp. Based on morphological comparisons of the skeletons of both coral genera, we hypothesize that Leptoseris spp. skeletons may cause incident light to travel through the coral tissue several times, thereby increasing photon-pigment interactions without increasing pigment concentrations. This superior light harvesting efficiency exhibited by Leptoseris in an energy limited environment (enabled by skeletal design rather than pigment physiology) may in part explain why the dominant genus of reef-building corals in Hawai'i cannot compete successfully with specialized low-light corals at extreme depths. KEY WORDS: Photobiology · Mesophotic · Coral ecology · Ecophysiology · LeptoserisResale or republication not permitted without written consent of the publisher

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Geology of Hawaii Reefs

Cited by 57 publications

References 57 publications

Coastal evolution on volcanic oceanic islands: A complex interplay between volcanism, erosion, sedimentation, sea-level change and biogenic production

Coastal evolution on volcanic oceanic islands: A complex interplay between volcanism, erosion, sedimentation, sea-level change and biogenic production

Settlement, colonization, and succession patterns of gold coral Kulamanamana haumeaae in Hawaiian deep coral assemblages

Efficient light harvesting in deep-water zooxanthellate corals

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