Polychaetes obtained from the Bon Accord Lagoon Tobago, Trinidad and Tobago

Occurrence Observation
最新版本 published by Institute of Marine Affairs on 6月 30, 2023 Institute of Marine Affairs
發布日期:
2023年6月30日
授權條款:
CC-BY-NC 4.0

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說明

Polychaete communities present in Thalssia testudinum beds of Bon Accord Lagoon Tobago.

資料紀錄

此資源出現紀錄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 68 筆紀錄。

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。:

Kanhai A (2023). Polychaetes obtained from the Bon Accord Lagoon Tobago, Trinidad and Tobago. Version 1.1. Institute of Marine Affairs. Occurrence dataset. https://cloud.gbif.org/lac/resource?r=polychaetes_bal&v=1.1

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 Institute of Marine Affairs。 This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License.

GBIF 註冊

此資源已向GBIF註冊，並指定以下之GBIF UUID: ffb8fa93-1c6f-48a1-b464-cf1e683cf680。  Institute of Marine Affairs 發佈此資源，並經由Participant Node Managers Committee同意向GBIF註冊成為資料發佈者。

關鍵字

Occurrence; Annelida; biological monitoring; Caribbean marine research; benthic communities Trinidad; Observation; Annelida; biological monitoring; Caribbean marine research; benthic communities Trinidad

聯絡資訊

Attish Kanhai
  • 出處
  • Research Officer
Institute of Marine Affairs
  • Hilltop Lane
Chaguaramas
TT
  • 8686344291
Institute of Marine Affairs
  • 連絡人
  • Data Officer
Institute of Marine Affairs
  • Hilltop Lane
Chaguaramas
TT
  • 8686344291
Paul Nelson
  • 連絡人
  • Data Officer
Institute of Marine Affairs
  • Hilltop Lane
Chaguaramas
TT
  • 8686344291

地理涵蓋範圍

Bon Accord Lagoon Tobago, Trinidad and Tobago

界定座標範圍 緯度南界 經度西界 [11.167, -60.827], 緯度北界 經度東界 [11.167, -60.827]

分類群涵蓋範圍

N/A

Kingdom Animalia
Phylum Annelida
Class Polychaeta
Order Phyllodocida, Terebellida, Eunicida, Eunicida 
Family Oenonidae, Magelonidae, Onuphidae, Capitellidae, Maldanidae, Hesionidae, Lumbrineridae, Ophellidae, Ampharetidae, Cossuridae, Eunicidae, Dorvilleidae, Cirratulidae, Orbiniidae, Glyceridae, Nereididae, Flabelligeridae, Nephtyidae

時間涵蓋範圍

起始日期 2018-08-21

計畫資料

Bon Accord Lagoon (BAL), Tobago is home to a Thalassia testudinum (K.D. Koenig, 1805) dominated seagrass community and polychaetes usually show an affinity to seagrass beds compared to other environments. The objectives of this study were to investigate the polychaete community associated with the Thalassia beds in BAL and determine seasonal variation. Thirty–one polychaete families were ranked according to trophic categories as described by Fauchald and Jumars (1979) and updated where possible. Deposit feeders were the largest trophic group represented across both seasons in the BALwith Maldanidae being the most dominant. Based on functional traits of the community the environment at BAL can be regarded as healthy. This study establishes a much-needed baseline for future research and management of marine biodiversity in southwest Tobago.

計畫名稱 Polychaete communities in the Bon Accord Lagoon, Tobago
辨識碼 BID-CA2020-004-INS
經費來源 The Government of the Republic of Trinidad and Tobago
研究區域描述 BAL lies in the southwestern region of Tobago at latitudes 11°10ʹ and 11°11ʹN and longitude, 60°49ʹ and 60°51ʹ E. The seagrass community in BAL covers an area of approximately 102 ha.2 and extends in some places to a depth of approximately 6 m. The seagrass beds are found in three main areas: north of Sheebird’s Point in the back reef area, south of Sheebird’s Point, and in the Lagoon extending from east of Gibson’s jetty straight toward the southeastern end of Pigeon Point. Turtle grass, T. testudinum is the dominant seagrass species in the Lagoon while smaller areas of Halophila decipiens (Ostenfeld, 1902) and Halodule wrightii (Ascherson, 1868) are interspersed among the turtle grass. The dominant algal genera areAcanthophera, Padina, Bryopsis, Dictyota, Halimeda, and Caulerpa while corals such as Porites porites (Pallas, 1766) also occur in the lagoon among the seagrass beds.
研究設計描述 The objectives of this study were: (i) Assess the polychaete community in Southwest Tobago and group them into trophic categories (ii) Compare the polychaete community across wet and dry seasons in BAL (iii) Establish the status of the environment inBAL based on the functional traits of the polychaete community and (iv) Establish a baseline for future environmental assessment of the benthic environment in southwest Tobago.

參與計畫的人員:

Attish Kanhai
  • 內容提供者

取樣方法

Benthic macrofauna were collected among seagrass beds within the Bon Accord Lagoon, Tobago during two sampling periods, the dry and wet seasons of 2018 (March and September, respectively) using a handheld PVC corer. The National Geography in Shore Areas (NaGISA) protocol for sampling seagrass infauna was used which involved immersing a 15 cm diameter corer to a depth of 10 cm and using a rubber bung at the top of the device to create a vacuum.

研究範圍 The Bon Accord Lagoon is located on the southwest coast of Tobago, which is located 32 km northeast of Trinidad, in the southeast Caribbean.

方法步驟描述:

  1. Core samples were sieved in the field using a 0.5 mm mesh screen. Samples were stained with Rose Bengal and preserved with a 10% formalin seawater mixture. The benthic organisms studied were polychaetes, which were sorted and identified to the lowest possible taxonomic level using the key: The Polychaete worms. Accepted taxa were checked against the World Register of Marine Species www.marinespecies.org

額外的詮釋資料

目的

The purpose of this data set is to provide a baseline for polychaete communities in Bon Accord Lagoon Tobago. These are useful environmental indicators upon which future work can build to monitor the health and status of the marine environment in this area.
替代的識別碼 ffb8fa93-1c6f-48a1-b464-cf1e683cf680
https://cloud.gbif.org/lac/resource?r=polychaetes_bal