Diversity and spatial distribution of Phyto and Zooplankton in the West Coast of Madagascar.

Occurrence
Latest version published by Madagascar Biodiversity Information Facility (MadBIF) on Sept 25, 2021 Madagascar Biodiversity Information Facility (MadBIF)
Publication date:
25 September 2021
License:
CC-BY-NC 4.0

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Description

During six weeks survey (August 26 to October 3, 2009) in the Western and the Northern coast of Madagascar, the R/V Dr. Fridtjof Nansen has carried out a pelagic ecosystem study in the framework of the ‘’FAO/South-Western Indian Ocean Fishery Project (SWIOFP)’’ and the ‘’Agulhas and Somali Current Large Marine Ecosystem (ASCLME)’’ projects. The survey's main objective was to establish the physical, chemical, and biological characteristics of the Western Madagascar shelf region as a whole.

Data Records

The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 1,073 records.

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.

Versions

The table below shows only published versions of the resource that are publicly accessible.

How to cite

Researchers should cite this work as follows:

BEMIASA, J. and REMANEVY, S. (2021): Diversity and spatial distribution of Phyto and Zooplankton in the West Coast of Madagascar.. v1. Madagascar Biodiversity Information Facility (MadBIF). Dataset/Occurrence. http://ipt.madbif.mg/resource?r=phytoplantons_of_madagascar_west-coast&v=1.0

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is Madagascar Biodiversity Information Facility (MadBIF). This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 4e11d715-c5ac-4669-a901-86e3852b11ed.  Madagascar Biodiversity Information Facility (MadBIF) publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF Madagascar.

Keywords

Occurrence; Specimen; Biodiversity; Distribution; Plankton; Phytoplankton; Occurrence

Contacts

John BEMIASA
  • Principal Investigator
  • Teacher - Researcher
Fishery Institute and Marine Sciences (IH.SM)
  • PO Box 141-Rue Rabesandrata
601 Toliara
Toliara
MG
  • +261 327777720
Sitraka REMANEVY
  • Metadata Provider ●
  • Author ●
  • Point Of Contact
  • Teacher - Researcher
Fishery Institute and Marine Sciences (IH.SM)
  • PO Box 141-Rue Rabesandrata
601 Toliara
Toliara
MG
  • +261 320243121
John BEMIASA
  • Principal Investigator
  • Teacher - Researcher
Fishery Institute and Marine Sciences (IH.SM)
  • PO Box 141-Rue Rabesandrata
601 Toliara
Toliara
MG
  • (+261)327777720
Jaona Ranaivo
  • Custodian Steward ●
  • Publisher
  • Researcher
MadBIF
  • Po Box 1739 Antananarivo
101 Antananarivo
Antananarivo
MG
  • +2613377279
Herizo RANDRIAMBANONA
  • Publisher
  • Node manager
MadBIF
  • Po Box 1739 Antananarivo
101 Antananarivo
Antananarivo
MG
  • +261346038486

Geographic Coverage

The survey was carried out in the Mozambique channel, along the west coast of Madagascar (between 42° to 46° longitude and -29 to -15 latitude)

Bounding Coordinates South West [-29, 42.188], North East [-15.969, 45.967]

Taxonomic Coverage

This dataset reports various phyto and zooplanktons recorded along the west coast of Madagascar, in the Mozambique channel

Kingdom Animalia, Bacteria, Chromista, Plantae, Protozoa

Temporal Coverage

Start Date / End Date 2009-08-28 / 2009-09-14

Project Data

During six weeks survey (August 26 to October 3, 2009) in the Western and the Northern coast of Madagascar, the R/V Dr Fridtjof Nansen has carried out a pelagic ecosystem study in the framwork of the ‘’FAO/South Western Indian Ocean Fishery Project (SWIOFP)’’ and the ‘’Agulhas and Somali Current Large Marine Ecosystem (ASCLME)’’

Title West Madagascar Oceanographic Survey
Funding It is a regional project financed by Global Environmental Facility (GEF) in the Western Indian Ocean region
Study Area Description The survey was carried out in six sites along the west coast of Madagascar between Cape Ste Marie (south) and Maintirano (north)
Design Description The research cruise was supported by the Agulhas and Somali Current Large Marine Ecosystems (ASCLME) project and the United Nations Food and Agriculture Organization (FAO). It includes a thorough examination of Madagascar's marine and coastal environments. This project provided oceanographers with a unique opportunity to gather baseline information about the large marine ecosystems of the Western Indian Ocean: the Agulhas and Somali Current LMEs. This is fundamental, pioneering research that is critical for the region's countries. The ASCLME project is all about gathering information about the physical, chemical, and biological characteristics of the Western Indian Ocean, with the long-term goal of better managing their resources.

The personnel involved in the project:

John BEMIASA
  • Principal Investigator
Sitraka REMANEVY
  • Author

Sampling Methods

The sampling was done in six sites along the west coast. Zooplankton samples were collected using the Hydrobios Multinet at all environmental stations ranging from 200m depth to the surface. The Multinet was equipped with 5 nets for depth-stratified sampling. The nets were fitted with 180 um mesh size, and the water flow through the nets was measured. The Multinet was deployed and retrieved at a rate of around 1.5m per second and was obliquely hauled. The five nets were triggered at the pre-selected depth intervals 0-25m, 25-50m, 50-80m, 80-120m, and 120-200m. All samples were stored in marked bottles and preserved with buffered formaldehyde of 4% for further analysis.

Study Extent The pelagic ecosystem study was carried out from August 26 to October 3 2009 in six sites from the south (Cap Sainte Marie) to the west coast of Madagascar (Besalampy Maintirano)
Quality Control Zooplankton key identification was based on the morphology, especially for the Copepods, which represent up to 80% of the Zooplankton (Mollo and Noury, 2013). The following author’s manuals for Zooplankton identification were used for this work: Mollo and Noury (2013), Tregouboff and Rose (1957). Also, Beaudouin (1973) and Lope (1997) studied plankton assemblages in Detroit de Davis and Mahanoro bay as key references to this work. Copies of the samples are stored and conserved at the Fishery Institute and Marine Science Laboratory for further study and analysis. The data were cleaned with OpenRefine. Organisms scientific names and classification were checked with WORMS database, and when the name was not found therein, further checking was carried out with Taxonomicon database and eventually with other sources, classification was set to comply as near as possible to WORMS'

Method step description:

  1. Zooplankton key identification was based on the morphology, especially for the Copepods, representing up to 80% of the Zooplankton (Mollo and Noury, 2013). The following author’s manuals for Zooplankton identification were used for this work: Mollo and Noury (2013), Tregouboff and Rose (1957). Also, Beaudouin (1973) and Lope (1997) studied plankton assemblages in Detroit de Davis and Mahanoro bay as key references to this work. Copies of the samples are stored and conserved at the Fishery Institute and Marine Science Laboratory for further study and analysis. For the Laboratory sampling, the marked bottles are inventoried and classified based on the sampling date, station, and depth. A 3-objective light microscope is used for the observation under a microscope: (x10 for scanning and counting), (x40 for identifying the species encountered) (x100: for determining the identification characteristics of zooplankton). The microscope is outfitted with a reflex camera to capture images of zooplankton for use as a database. Before each observation, the bottles are shaken to ensure that the zooplankton is distributed evenly. A sub-sample can be observed between the hollow slide and the coverslip using a 40 µl graduated micropipette. Under a microscope, 10 catches totaling 400 µl were observed and counted for each sample.

Collection Data

Collection Name Plankton FAO/ASCLME/SWIOFP West Madagascar 2009
Collection Identifier PL_ST_Net
Parent Collection Identifier PL_ST_Net
Specimen preservation methods Formalin

Bibliographic Citations

  1. Baudouin, J. 1973. Etude preliminaire du zooplancton du Detroit de Davis. Relations trophiques entre zooplancton et poissons. Rev. Inst. Peches marit., 37(1). p 67-76.
  2. Lope, J.C. 1997. Variation spatio-temporelle du peuplement planctonique dans les eaux, les sediments et les contenus stomacaux des crevettes de la zone de peche de la cote Est malgache (Zone de Mahanoro-Mangoro). Diplome d’Etudes Approfondies en Oceanologie Appliquee. 85p.
  3. Mollo, P. and Noury, A. 2013. Le Manuel du Plancton. Ed. Charles Leopard Mayer. 198 p.
  4. Tregouboff, G. and Rose, M. 1957. Mauel de Planctonologie mediterraneenne. Ed. Imprimerie Letouzey et Anee, Paris. Tome 1 et Tome 2. 587p.
  5. http://vocabularies.unesco.org/browser/thesaurus/en/page/?uri
  6. http://www.marinespecies.org/index.php
  7. http://taxonomicon.taxonomy.nl/TaxonTree.aspx?id=196909
  8. http://species-identification.org/species.php?species_group=zsao&menuentry=soorten&id=1689&tab=beschrijving
  9. http://www.radiolaria.org/species.htm?division=68&sp_id=114
  10. http://organismnames.com/details.htm?lsid=3761052
  11. https://www.arcella.nl/difflugia-globulosa/
  12. WoRMS Editorial Board (2021). World Register of Marine Species. Available from https://www.marinespecies.org at VLIZ. Accessed 2021-07-30. doi:10.14284/170
  13. Species 2000: http://www.catalogueoflife.org/annual-checklist/2017/search/scientific?5940d4ba375c6b39e8921f524fe5c404
  14. Deborah Paul and Cam Macdonell (eds): "Data Carpentry: Data Cleaning with OpenRefine Ecology lesson." Version 2017.04.0, April 2017, http://www.datacarpentry.org/OpenRefine-ecology-lesson/