Modeling abundance, growth, and health of the solitary coral Scolymia wellsi (Mussidae) in turbid SW Atlantic coral reefs

Coni Ericka O. C.; Ferreira Camilo M.; Meirelles Pedro M.; Menezes Rafael; Santana Erika F. C.; Moreira Ana Paula B.; Amado-Filho Gilberto M.; Ferreira Beatrice P.; Pereira-Filho Guilherme H.; Thompson Fabiano L.; Moura Rodrigo L.; Francini-Filho Ronaldo B.

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Modeling abundance, growth, and health of the solitary coral Scolymia wellsi (Mussidae) in turbid SW Atlantic coral reefs

机译：在浑浊的西南大西洋珊瑚礁中模拟孤立珊瑚Scolymia wellsi（Mussidae）的丰度，生长和健康

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Corals from the genus Scolymia have high-sediment-shifting capabilities and are generally associated with habitats with low light levels (shallow shaded/high-turbidity reefs and mesophotic reefs > 30 m depth). Here, the spatio-temporal dynamics in abundance, growth, and health (i.e., proportion of bleached/dead tissue) of the solitary coral Scolymia wellsi was modeled in the Abrolhos Bank, eastern Brazil, using boosted regression trees. Models were built using a yearly time series (2006-2008) of digital images of fixed benthic areas (photo-quadrats) and fixed S. wellsi individuals (n = 65). Samples were obtained in sites separated by up to 130 km and subjected to a wide range of biotic/abiotic conditions (as measured in situ and by remote sensing). Scolymia wellsi abundance was highest on inshore turbid reefs, although high nutrient availability (as inferred by the concentration of particulate organic carbon) and temperature were more important than turbidity (Kd(490)) itself for explaining this latter pattern. Bleaching affected mainly larger (older) individuals inhabiting inshore reefs, where S. wellsi abundance was highest, possibly reflecting natural coral senescence and/or negative density-dependent effects. Coral growth declined with size and with increased contact with turf algae/cyanobacterial mats, these latter organisms well recognized as major competitors for benthic space and coral disease facilitators. Species-specific coral population studies exploring different spatial scales (reef scale and coral scale) and a wide range of biotic/abiotic conditions may provide important insights on the ecological processes operating at the reef community and ecosystem levels.

机译：Scolymia属的珊瑚具有高沉积物迁移能力，通常与光线较弱的栖息地（浅阴影/高浊度珊瑚礁和深度大于30 m的中生珊瑚礁）相关。在这里，巴西东部的Abrolhos Bank使用增强的回归树对孤立珊瑚Scolymia wellsi的丰度，生长和健康（即漂白/死组织的比例）的时空动态进行了建模。使用固定的底栖区域（照片四角形）和固定的链球菌个体（n = 65）的数字图像的年度时间序列（2006-2008）建立模型。样品是在相距不超过130公里的地点获得的，并受到多种生物/非生物条件的影响（现场测量和通过遥感测量）。尽管近海混浊礁石的Scolymia wellsi丰度最高，但高的养分利用率（由颗粒有机碳的浓度推断）和温度比混浊度（Kd（490））本身更重要，以解释后一种模式。漂白影响的主要是居住在近海礁石的较大（较旧）个体，其中S.wellsi丰度最高，可能反映了天然珊瑚衰老和/或负面的密度依赖性效应。珊瑚的生长随着大小的增加以及与草皮藻类/蓝细菌垫的接触增加而减少，后一种生物被公认为底栖空间和珊瑚病促进因子的主要竞争者。对特定物种进行的珊瑚种群研究，探索不同的空间尺度（珊瑚礁尺度和珊瑚尺度）以及广泛的生物/非生物条件，可能提供有关在珊瑚礁群落和生态系统水平上运作的生态过程的重要见解。

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《Marine biology》 |2017年第4期|64.1-64.15|共15页
作者
Coni Ericka O. C.; Ferreira Camilo M.; Meirelles Pedro M.; Menezes Rafael; Santana Erika F. C.; Moreira Ana Paula B.; Amado-Filho Gilberto M.; Ferreira Beatrice P.; Pereira-Filho Guilherme H.; Thompson Fabiano L.; Moura Rodrigo L.; Francini-Filho Ronaldo B.;
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Univ Estadual Paraiba, Programa Posgrad Ecol & Conservacao, Av Bananeiras 351, BR-58109753 Campina Grande, PB, Brazil;

Univ Estadual Paraiba, Programa Posgrad Ecol & Conservacao, Av Bananeiras 351, BR-58109753 Campina Grande, PB, Brazil;

Univ Fed Rio de Janeiro, Ctr Ciencias Saude, Inst Biol, Programa Posgrad Genet, BR-21944970 Rio De Janeiro, Brazil;

Univ Fed Paraiba, Programa Posgrad Ciencias Biol Zool, BR-58059900 Joao Pessoa, Paraiba, Brazil;

Univ Fed Paraiba, Programa Posgrad Ciencias Biol Zool, BR-58059900 Joao Pessoa, Paraiba, Brazil;

Univ Fed Rio de Janeiro, Ctr Ciencias Saude, Inst Biol, Programa Posgrad Genet, BR-21944970 Rio De Janeiro, Brazil;

Inst Pesquisas Jardim Bot Rio De Janeiro, Rua Pacheco Leao 915, BR-22460030 Rio De Janeiro, RJ, Brazil;

Univ Fed Pernambuco, Dept Oceanog, Ctr Tecnol & Geociencias, BR-50670901 Recife, PE, Brazil;

Univ Fed Sao Paulo, Inst Mar, Campus Baixada Santista, BR-11030400 Santos, SP, Brazil;

Univ Fed Rio de Janeiro, Inst Biol, Ctr Ciencias Saude, Dept Biol Marinha, BR-21944970 Rio De Janeiro, RJ, Brazil;

Univ Fed Rio de Janeiro, Inst Biol, Ctr Ciencias Saude, Dept Biol Marinha, BR-21944970 Rio De Janeiro, RJ, Brazil;

Univ Fed Paraiba, Dept Engn & Meio Ambiente, Rua Mangueira S-N, BR-58297000 Rio Tinto, PB, Brazil;

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Modeling abundance, growth, and health of the solitary coral Scolymia wellsi (Mussidae) in turbid SW Atlantic coral reefs

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