Reef Bioerosion: Agents and Processes

Tribollet, Aline; Golubić, Stjepko

doi:10.1007/978-94-007-0114-4_25

Cited by 68 publications

(62 citation statements)

References 116 publications

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“…microboring organisms that actively colonize substrates; see definition in Golubic et al 1981) in skeletons of live hard corals was first noticed by Duerden (1902) and then by Odum & Odum (1955), Lukas (1973Lukas ( , 1974, Le Campion-Alsumard et al (1995a, 1995b, and reviewed by Tribollet (2008a). In coral reef ecosystems, the microbial euendoliths are one of the main agents of carbonate dissolution (Tribollet & Golubic 2011). Despite this destructive role, an ectosymbiotic and/or parasitic relationship between euendoliths and living corals from tropical and cold waters has been suggested by several authors (Laborel & Le Campion-Alsumard 1979;Ferrer & Szmant 1988;Schlichter et al 1995Schlichter et al , 1997Fine & Loya 2002;Golubic et al 2005;Försterra & Haüssermann 2008;Work et al 2008;Hoeksema 2012), but it remains to be further investigated.…”

Section: Introductionmentioning

confidence: 94%

Microboring organisms in living stylasterid corals (Cnidaria, Hydrozoa)

Pica

Tribollet

Golubić

et al. 2016

Marine Biology Research

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Microboring or euendolithic microorganisms, which colonize and penetrate various carbonate substrates, are abundant in coral reef ecosystems and play a major role in reef carbonate dissolution. A few studies reported the presence of euendoliths in stylasterid coral skeletons but the biological identity, distribution and abundance of these microorganisms remain largely unknown. Observations of over 100 stylasterid colonies, collected in the Indo-Pacific area, revealed for the first time that the association between these corals and euendolith organisms appears to be quite common in shallow tropical waters. The most abundant euendolith was identified as a cryptic stage in the development of the rhodophyte Porphyra (Conchocelis stage). The euendoliths were observed in the skeletons of seven species of three genera (four Stylaster, two Distichopora and one Lepidotheca). The presence of euendoliths inside skeletons conferred a particular colour to the studied stylasterid corals. Distribution and abundance of microborings varied significantly among stylasterid species and among branches of a single colony and so did the colour of their skeletons. Colonization of skeletons and the associated colour distribution were almost uniform in some stylasterids, forming an upward gradually diminishing or sharply limited gradient. This study shows that patterns of euendolith colonization and growth in stylasterid skeletons may depend on the stage of the euendolith development as well as on their environmental requirements such as light exposure

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Section: Introductionmentioning

confidence: 94%

Microboring organisms in living stylasterid corals (Cnidaria, Hydrozoa)

Pica

Tribollet

Golubić

et al. 2016

Marine Biology Research

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“…Because NEC measures the capacity for in situ coral reef CaCO 3 production (Perry et al, 2012(Perry et al, , 2013, it must be considered within the context of additional import, export, and erosion of CaCO 3 material if the monitoring goal is to directly measure net coral reef accretion (e.g., Scoffin, 1992;Milliman, 1993;Kleypas et al, 2001;Perry et al, 2008Perry et al, , 2012Montaggioni and Braithwaite, 2009;Tribollet and Golubic, 2011). To date, much attention has been given to reef accretion processes highlighting the importance of additionally studying the dynamics of erosive processes, especially dissolution of CaCO 3 in sediment and by microborers, sponges, and other bioeroders.…”

Section: Discussionmentioning

confidence: 99%

“…While hermatypic scleractinian corals are typically the dominant coral reef CaCO 3 producers (Vecsei, 2004), coral reef net ecosystem calcification (NEC) is the sum of gross calcification and gross CaCO 3 dissolution (Chave et al, 1972). Coral reef accretion and maintenance of geomorphic structure therefore depends on NEC as well as the net import, export, and erosion of CaCO 3 material (e.g., Scoffin, 1992;Milliman, 1993;Kleypas et al, 2001;Perry et al, 2008;Montaggioni and Braithwaite, 2009;Tribollet and Golubic, 2011;Perry et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Comparing Chemistry and Census-Based Estimates of Net Ecosystem Calcification on a Rim Reef in Bermuda

et al. 2016

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Coral reef net ecosystem calcification (NEC) has decreased for many Caribbean reefs over recent decades primarily due to changes in benthic community composition. Chemistry-based approaches to calculate NEC utilize the drawdown of seawater total alkalinity (TA) combined with residence time to calculate an instantaneous measurement of NEC. Census-based approaches combine annual growth rates with benthic cover and reef structural complexity to estimate NEC occurring over annual timescales. Here, NEC was calculated for Hog Reef in Bermuda using both chemistry and census-based NEC techniques to compare the mass-balance generated by the two methods and identify the dominant biocalcifiers at Hog Reef. Our findings indicate close agreement between the annual 2011 census-based NEC 2.35 ± 1.01 kg CaCO 3 •m −2 1•y − and chemistry-based NEC 2.23 ± 1.02 kg CaCO 3 •m −2 •y −1 at Hog Reef. An additional record of Hog Reef TA data calculated from an autonomous CO 2 mooring measuring pCO 2 and modeled pH total every 3-h highlights the dynamic temporal variability in coral reef NEC. This ability for chemistry-based NEC techniques to capture higher frequency variability in coral reef NEC allows the mechanisms driving NEC variability to be explored and tested. Just four coral species, Diploria labyrinthiformis, Pseudodiploria strigosa, Millepora alcicornis, and Orbicella franksi, were identified by the census-based NEC as contributing to 94 ± 19% of the total calcium carbonate production at Hog Reef suggesting these species should be highlighted for conservation to preserve current calcium carbonate production rates at Hog Reef. As coral cover continues to decline globally, the agreement between these NEC estimates suggest that either method, but ideally both methods, may serve as a useful tool for coral reef managers and conservation scientists to monitor the maintenance of coral reef structure and ecosystem services.

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“…The mechanism involved in precipitation of calcite in microborings remains however unknown. Calcite in coral skeletons could also come from crustose coralline algae, which are often the substrate of fixation for corals in tropical environments (Morse et al, 1988;Heyward and Negri, 1999;Raimondi and Morse, 2000;Baird and Morse, 2004;Harrington et al, 2004;Golbuu and Richmond, 2007) and/or boring bivalves which can be abundant in some coral skeletons (Scott and Risk, 1988; see the review on reef bioerosion by Tribollet and Golubic (2011)). Despite these studies, the abundance, spatial distribution within skeletons and origin of calcite inside corals remain poorly known.…”

Section: Introductionmentioning

confidence: 98%