Surveys of four coral reefs in Mauritius

Surveys of 4 coral reefs (Balaclava, Blue Bay, Point du Diable, Trou aux Biches) were carried out as part of a UNESCO/COMARAF training workshop on coral taxonomy and management of coral reefs, held 18-28 October 1988.Specimens were collected from Trou aux Biches for taxonomy determinations.Surveys to define coral associations were carried out at Balaclava, Point du Diable and Trou aux Biches. Each species seen during a 20 min swim was recorded and given a score based on its relative contribution to total (hard and soft) coral cover (1 = 1-5%; 2 = 6-10%; 3 = 11-30%; 4 = 31-80%; 5 = >80%). In addition, the following site characteristics were recorded: maximum and minimum depth; slope; % hard substrate; % hard coral; % dead standing hard coral; % soft coral; % macroalgae; % sponge; % cover substate (continuous limestone platform; large blocks > 1 m; small blocks 0.1-1 m; mud; rubble; sand).Line transect (30 m) surveys to estimate percent coral cover and size frequency distribution were conducted at Blue Bay (8) and Trou aux Biches (3). Coral (identified to species where possible), substrate or other benthic organims were recorded (l = live; d = dead; a = algae; n = non-colonisable substrate; c = colonisable substrate; s =sponge).Quadrat stereophotographs were taken at Trou aux Biches to demonstrate this monitoring technique. To train participants in basic survey methods and analyses on local reefs. Coral species: Acropora; Acropora 'bottlebrush'; Acropora 'nobilis'; Acropora aculeus; Acropora clathrata; Acropora elseyi; Acropora florida; Acropora gemmifera; Acropora hemprichi; Acropora hyacinthus; Acropora hyacinthus; Acropora pharonis; Acropora robusta; Acropora tenuis; Acropora variabilis; Alveopora sp.; Echinopora gemmacea; Echinopora lamellosa; Favia stelligera; Favites sp.; Fungia sp.; Galaxea fascicularis; Goniastrea retiformis; Goniopora sp.; Hydnophora exesa; Leptroia phrygia; Millepora platyphylla; Millepora tenera; Montipora circumvallata; Montipora sp.; Pavona cactus; Pavona varians; Pocillopora; Porites massive.Algae identified: Turbinaria ornata.

本数据集源自1988年10月18日至28日举办的联合国教科文组织（UNESCO）/COMARAF珊瑚礁分类与管理培训讲习班，期间对4处珊瑚礁（巴拉克拉瓦（Balaclava）、蓝湾（Blue Bay）、魔鬼角（Point du Diable）、图阿贝什（Trou aux Biches））开展了调查。
研究人员从图阿贝什（Trou aux Biches）采集珊瑚标本用于分类鉴定。针对珊瑚群落的调查分别在巴拉克拉瓦、魔鬼角与图阿贝什开展：在20分钟的巡游范围内所见的每一珊瑚物种均被记录，并根据其在硬珊瑚与软珊瑚总覆盖占比赋予对应评分：1分对应1%-5%；2分对应6%-10%；3分对应11%-30%；4分对应31%-80%；5分对应>80%。
此外，还记录了以下位点特征：最大与最小水深、坡度、硬质基底占比、硬珊瑚占比、直立死亡硬珊瑚占比、软珊瑚占比、大型藻类占比、海绵占比、基底覆盖类型（连续石灰岩平台、大于1米的大块礁石、0.1米至1米的小块礁石、淤泥、碎石、沙质基底）。
在蓝湾（8次）与图阿贝什（3次）开展了30米样线法（Line transect）调查，用于估算珊瑚覆盖率与体型频率分布。记录内容包括珊瑚（尽可能鉴定至物种水平）、基底或其他底栖生物（benthic organisms），记录代码为：l=活体；d=死体；a=藻类；n=不可定植基底；c=可定植基底；s=海绵。
在图阿贝什采集了样方（Quadrat）立体摄影照片（stereophotographs）以展示该监测技术，用于培训学员掌握当地珊瑚礁的基础调查方法与分析技术。
本次调查记录的珊瑚物种如下：轴孔珊瑚属（Acropora）、瓶刷状轴孔珊瑚（Acropora "bottlebrush"）、高贵轴孔珊瑚（Acropora "nobilis"）、尖棘轴孔珊瑚（Acropora aculeus）、网格轴孔珊瑚（Acropora clathrata）、埃尔西轴孔珊瑚（Acropora elseyi）、佛罗里达轴孔珊瑚（Acropora florida）、芽生轴孔珊瑚（Acropora gemmifera）、亨普里奇轴孔珊瑚（Acropora hemprichi）、风信子轴孔珊瑚（Acropora hyacinthus）、风信子轴孔珊瑚（Acropora hyacinthus）、法老轴孔珊瑚（Acropora pharonis）、粗壮轴孔珊瑚（Acropora robusta）、纤细轴孔珊瑚（Acropora tenuis）、变异轴孔珊瑚（Acropora variabilis）、杯孔珊瑚属未定种（Alveopora sp.）、芽状刺孔珊瑚（Echinopora gemmacea）、层孔刺孔珊瑚（Echinopora lamellosa）、星状蜂巢珊瑚（Favia stelligera）、角蜂巢珊瑚属未定种（Favites sp.）、蕈珊瑚属未定种（Fungia sp.）、丛生盔形珊瑚（Galaxea fascicularis）、网状合形珊瑚（Goniastrea retiformis）、牡丹珊瑚属未定种（Goniopora sp.）、棘星珊瑚（Hydnophora exesa）、莱普托里亚属菲吉亚种（Leptroia phrygia）、宽叶千孔珊瑚（Millepora platyphylla）、细弱千孔珊瑚（Millepora tenera）、围列微孔珊瑚（Montipora circumvallata）、微孔珊瑚属未定种（Montipora sp.）、仙人掌牡丹珊瑚（Pavona cactus）、变异牡丹珊瑚（Pavona varians）、杯形珊瑚属（Pocillopora）、块状滨珊瑚（Porites massive）。
本次调查鉴定的藻类如下：翅藻（Turbinaria ornata）。