說明
It has recently been uncovered that the model reef coral Pocillopora damicornis is actually a taxonomic complex comprised of multiple species that are difficult to differentiate in situ. However, little is known about the distribution of these species across or within reef ecosystems. To better understand the spatial partitioning between the morphologically-similar sister species P. damicornis and P. acuta, 88 Pocillopora colonies were genotyped across five and three islands/atolls within the Austral and Cook Islands, respectively. A mix of newly described pocilloporid types was found across the two archipelagos, with nearly 33% of the specimens being identified not as the more commonly referenced a genotype of P. damicornis, but instead as P. acuta. Furthermore, P. damicornis was more likely to be found at depths greater than 15 m and in higher coral cover areas relative to P. acuta, suggesting that these closely-related species display distinct habitat preferences.
資料紀錄
此資源sampling event的資料已發佈為達爾文核心集檔案(DwC-A),其以一或多組資料表構成分享生物多樣性資料的標準格式。 核心資料表包含 48 筆紀錄。
亦存在 2 筆延伸集的資料表。延伸集中的紀錄補充核心集中紀錄的額外資訊。 每個延伸集資料表中資料筆數顯示如下。
此 IPT 存放資料以提供資料儲存庫服務。資料與資源的詮釋資料可由「下載」單元下載。「版本」表格列出此資源的其它公開版本,以便利追蹤其隨時間的變更。
版本
以下的表格只顯示可公開存取資源的已發布版本。
如何引用
研究者應依照以下指示引用此資源。:
Mayfield A B, Bruckner A W, Chen C and Chen C (2024). A survey of pocilloporid corals and their endosymbiotic dinoflagellate communities in the Austral and Cook Islands of the South Pacific. Version 1.0. Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node. Samplingevent dataset. https://nzobisipt.niwa.co.nz/resource?r=pocilloporid_austral_cookis&v=1.0
權利
研究者應尊重以下權利聲明。:
此資料的發布者及權利單位為 Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node。 This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.
GBIF 註冊
此資源已向GBIF註冊,並指定以下之GBIF UUID: 8a4f2f34-b89e-49dc-a528-6103caffbab0。 Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node 發佈此資源,並經由Ocean Biodiversity Information System同意向GBIF註冊成為資料發佈者。
關鍵字
Samplingevent
聯絡資訊
- 元數據提供者 ●
- 出處 ●
- 連絡人
- Researcher
- 出處
- Researcher
- 出處
- Researcher
- 出處
- Researcher
地理涵蓋範圍
Austral Islands (French Polynesia) and Cook Islands
界定座標範圍 | 緯度南界 經度西界 [-23.912, -163.188], 緯度北界 經度東界 [-17.993, -147.59] |
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時間涵蓋範圍
起始日期 / 結束日期 | 2013-04-01 / 2013-05-05 |
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取樣方法
To determine whether the a genotype of P. damicornis is present across a 2,000-km, unexplored region of the South Pacific Ocean, corals most closely resembling the best described morphologies of P. damicornis (Veron, 2000) were collected at each of 30 reef sites across five islands/atolls of French Polynesia’s Austral Islands and each of 30 reefs from three islands/atolls of the Cook Islands in April and May 2013. In the Austral Islands, Raivavae, Tubuai, Rurutu, Rimatara, and Maria were surveyed over the latter half of April 2013. Herein, only the data from Raivavae, Tubuai, Maria, and, to a lesser extent, Rurutu, are presented; reefs of Rurutu and Rimatara had been devastated by a crown of thorns starfish (COTS) outbreak and so few adult corals were present. Indeed, not a single P. damicornis-like coral was found at Rimatara.
研究範圍 | Austral Islands (French Polynesia) and Cook Islands |
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方法步驟描述:
- Corals were typically collected on SCUBA from depths between 10 and 20 m by random swimming, and depth and time of coral collection were determined by a diving computer (Suunto D4). After taking a picture with an Olympus TG-2 underwater camera, small (50-100 mg) biopsies were removed from coral colonies with bone-cutting pliers and placed into sterile, pre-labeled Whirl-Pak® (Nasco) bags. When present, typically 1-3 pocilloporid colonies were sampled at each site, and 123 colonies were sampled across 48 of the 60 sites visited over the 3.5 week-long duration of the cruise. When corals with a P. damicornis-like appearance were not found, P. verrucosa Ellis and Solander or P. meandrina Dana specimens were instead collected; briefly, although the major aim of the study was to sample only colonies resembling P. damicornis, other pocilloporid corals were collected to serve as out-groups in the phylogenetic analyses and to determine whether intra-generic differences in Symbiodinium assemblages could be documented.
- Immediately upon returning to the small craft vessel after a dive, coral biopsies were minced with bone-cutting pliers or tweezers, immersed in RNALater® (Life Technologies), and stored at -20 or 4°C for several hours. Upon return to the M.Y. Golden Shadow, samples were homogenized in RNALater with mortars and pestles as in Mayfield et al. (2013b). Homogenized tissues + skeleton in RNALater were frozen in an -80°C freezer onboard the ship for several weeks. Then, they were transferred to a -150°C liquid nitrogen dry shipper (Doble 20 model, Chart Biomedical), exported under CITES permit FR1398700102-E (to ABM), and transferred on a commercial airline to a -80°C freezer at Taiwan’s National Museum of Marine Biology and Aquarium (NMMBA), where extractions were later performed.
收藏資料
蒐藏名稱 | National Museum of Marine Biology and Aquarium (NMMBA) |
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標本保存方法 | Deep frozen |
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引用文獻
- Mayfield, A.B., Bruckner, A.W., Chen, C. and Chen, C., 2015. A survey of pocilloporid corals and their endosymbiotic dinoflagellate communities in the Austral and Cook Islands of the South Pacific. Platax, 12, pp.1-17.
額外的詮釋資料
marine, harvested by iOBIS