Effect of short-term subaerial exposure on the cauliflower coral, Pocillopora damicornis, during a simulated extreme low-tide event

Abstract

Effect of short-term subaerial exposure on the cauliflower coral, Pocillopora damicornis, during a simulated extreme lowtide event. Coral Reefs.

Gene Expression and Photophysiological Changes in Pocillopora acuta Coral Holobiont Following Heat Stress and Recovery

“…However, one colony from this site (G4) showed significantly higher levels of endosymbiont density following heat exposure. A similar response has been observed previously for Pocillopora colonies exposed to heat stress (see [38,54]). Indeed, corals are known to regulate their endosymbiont abundance upwards under sub-optimal conditions to sustain high photosynthetic yield [55].…”

Physiological Characteristics and Environment Adaptability of Reef-Building Corals at the Wuzhizhou Island of South China Sea

“…Lipids, proteins, and carbohydrates are the main energy substances of reef building corals, and they readily reflect changes in coral health (Yellowlees et al, 2008;Lesser, 2013). The synthesized carbon surplus from biological functions is the main energy source for calcification and reproduction (Castrillón-Cifuentes et al, 2017). According to our energy survey, the four identified coral species all had significantly lower protein content in the north compared with in the south, showing an adjusted energy structure.…”

“…Grottoli et al (2014) and Schoepf et al (2015) showed that Porites astreoides keeps a high level of energy reserve in response to long-term bleaching stress, which is essential for a rapid recovery. Besides, during stressful periods, trade-off is made to maintain crucial functions by compromising obvious scope to growth (Zamer and Shick, 1987;Grottoli et al, 2014) or aberrant fecundity (Patton et al, 1977;Castrillón-Cifuentes et al, 2017), and energy budget is balanced by subtraction (Edmunds and Davies, 1989). For G. fascicularis, although it maintains high heterotrophic ability, its energy reserve was notably lower in the north compared with in the south side of WZZ.…”

“…Generally, key factors for corals on their resilience against and recovery from bleaching include the level of energy reserve, the shift in endosymbiont type, and the heterotrophic plasticity (Schoepf et al, 2015;Castrillón-Cifuentes et al, 2017). Grottoli et al (2014) reported that Porites astreoides is more sensitive to bleaching than Orbicella faveolata and Porites divaricata because it has a relatively inflexible assemble of Symbiodiniaceae with different genetic types and also a much lower energy reserve baseline than the others.…”

Evidencia de reclutamiento coralino producto de reproducción sexual, en Isla Gorgona, Pacífico Tropical Oriental

“…Although Gorgona Island is located within a marine protected area so that direct anthropogenic impacts are virtually absent, these reefs are negatively affected by recurring natural disturbances such as El Niño warming events and subaerial exposures during extreme low tides (Zapata and Vargas-Ángel, 2003;Castrillón et al, 2017;Castrillón et al, 2017;Fiedler y Lavín, 2017). Por ejemplo, la cobertura de coral vivo en el arrecife de La Azufrada disminuyó en promedio 26% durante la década 1998-2008, siendo aún más crítico en las áreas someras del arrecife donde pasó de 61% a 15% (Zapata, 2017), a partir de donde ha ido recuperándose lentamente.…”