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

Occurrence Observation
Dernière version Publié par Institute of Marine Affairs le juin 30, 2023 Institute of Marine Affairs
Date de publication:
30 juin 2023
Licence:
CC-BY-NC 4.0

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Description

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

Enregistrements de données

Les données de cette ressource occurrence ont été publiées sous forme d'une Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant qu'ensemble d'un ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 68 enregistrements.

Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées de la ressource sont disponibles pour téléchargement dans la section téléchargements. Le tableau des versions liste les autres versions de chaque ressource rendues disponibles de façon publique et permet de tracer les modifications apportées à la ressource au fil du temps.

Versions

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Comment citer

Les chercheurs doivent citer cette ressource comme suit:

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

Droits

Les chercheurs doivent respecter la déclaration de droits suivante:

L’éditeur et détenteur des droits de cette ressource est Institute of Marine Affairs. Ce travail est sous licence Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0.

Enregistrement GBIF

Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : ffb8fa93-1c6f-48a1-b464-cf1e683cf680.  Institute of Marine Affairs publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du Participant Node Managers Committee.

Mots-clé

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

Contacts

Attish Kanhai
  • Créateur
  • Research Officer
Institute of Marine Affairs
  • Hilltop Lane
Chaguaramas
TT
  • 8686344291
Institute of Marine Affairs
  • Personne De Contact
  • Data Officer
Institute of Marine Affairs
  • Hilltop Lane
Chaguaramas
TT
  • 8686344291
Paul Nelson
  • Personne De Contact
  • Data Officer
Institute of Marine Affairs
  • Hilltop Lane
Chaguaramas
TT
  • 8686344291

Couverture géographique

Bon Accord Lagoon Tobago, Trinidad and Tobago

Enveloppe géographique Sud Ouest [11,167, -60,827], Nord Est [11,167, -60,827]

Couverture taxonomique

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

Couverture temporelle

Date de début 2018-08-21

Données sur le projet

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.

Titre Polychaete communities in the Bon Accord Lagoon, Tobago
Identifiant BID-CA2020-004-INS
Financement The Government of the Republic of Trinidad and Tobago
Description du domaine d'étude / de recherche 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.
Description du design 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.

Les personnes impliquées dans le projet:

Attish Kanhai
  • Fournisseur De Contenu

Méthodes d'échantillonnage

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.

Etendue de l'étude The Bon Accord Lagoon is located on the southwest coast of Tobago, which is located 32 km northeast of Trinidad, in the southeast Caribbean.

Description des étapes de la méthode:

  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

Métadonnées additionnelles

Objet

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.
Identifiants alternatifs ffb8fa93-1c6f-48a1-b464-cf1e683cf680
https://cloud.gbif.org/lac/resource?r=polychaetes_bal