Spatial and temporal distribution of phytoplankton off the coast of Portugal

Sampling event
Latest version published by IPMA - Instituto Português do Mar e da Atmosfera on Oct 8, 2024 IPMA - Instituto Português do Mar e da Atmosfera
Publication date:
8 October 2024
License:
CC-BY-NC 4.0

Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:

Data as a DwC-A file download 991 records in English (2 MB) - Update frequency: unknown
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Description

The present phytoplankton dataset was obtained during a seasonal sampling cycle conducted over five surveys named CICLOS I to IV and AREAS aboard the R/V Noruega from IPIMAR, as part of the project “Ciclos de produção planctónicos na costa portuguesa e sua relação com os recursos pesqueiros”. The campaigns took place from August 85 to April 87.

Data Records

The data in this sampling event 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 991 records.

2 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.

Event (core)
991
Occurrence 
124910
ExtendedMeasurementOrFact 
1170

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:

Moita M T, Costa A M, Sousa Fernandes R, dos Santos Morais A, Vilarinho M D G, dos Santos A, Silva A D, Niza H, (2024). Spatial and temporal distribution of phytoplankton off the coast of Portugal. Version 1.6. IPMA - Instituto Português do Mar e da Atmosfera. Samplingevent dataset. http://ipt.gbif.pt/ipt/resource?r=ciclos_areas&v=1.6

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is IPMA - Instituto Português do Mar e da Atmosfera. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License.

GBIF Registration

This resource has not been registered with GBIF

Keywords

Samplingevent

Contacts

Maria Teresa Moita
  • Originator
IPMA
Ana Maria Costa
  • Originator
Rui Sousa Fernandes
  • Originator
Armindo dos Santos Morais
  • Originator
Maria da Graça Vilarinho
  • Originator
Henrique Niza
  • Metadata Provider ●
  • Point Of Contact
Instituto Português do Mar e da Atmosfera, I. P. (IPMA)
Lisbon
PT
Alexandra D. Silva
  • Metadata Provider ●
  • Point Of Contact
Instituto Português do Mar e da Atmosfera, I. P. (IPMA)
Lisbon
PT
Antonina dos Santos
  • Point Of Contact
Instituto Português do Mar e da Atmosfera, I. P. (IPMA)

Geographic Coverage

Campaigns covered the coastal area of Portugal, from Caminha to V. R. Sto. António, having as geographical limits the meridians from 41º 50´N to 36º 10’N [west coast: 41.883, 36.167] and the parallels from 10º 30’ W and 7º 30’ W [south coast: -10.583, -7.33], with a distance from the coast ranging between 40 and 80 km, approximately corresponding to the location of the 1000 m isobath. Sampling stations were distributed along 16-18 sections perpendicular to the bathymetry.

Bounding Coordinates South West [36.167, -10.583], North East [41.883, -7.5]

Taxonomic Coverage

N/A

Kingdom Chromista
Phylum Radiozoa
Class Acantharia

Sampling Methods

For the qualitative and quantitative analysis of phytoplankton, 250 ml samples of seawater were collected and placed in brown plastic bottles. The samples were in situ preserved with 20% formalin, neutralized with hexamethylenotetramine (previously placed in the bottle), resulting in a final concentration of 0.4%.

Study Extent At each sampling station, depth levels of 0, 5, 10, 20, 30, 40, 50, 75, 100, 125, 150, 200, and 300 meters, or until the bottom, were sampled using "Nansen" bottles.
Quality Control In the laboratory, subsamples of 100 ml were placed to sediment in counting chambers for 72 hours.

Method step description:

  1. Phytoplankton enumeration was performed using the Utermöhl technique, on a ZEISS IM35 inverted microscope equipped with bright field and phase contrast.

Bibliographic Citations

  1. Moita, M. T. (2001) Variabilidade e dinâmica do Fitoplâncton na Costa de Portugal Continental. PhD thesis. Universidade de Lisboa and CSIC - Instituto de Ciencias del Mar (ICM), 272 pp. https://digital.csic.es/handle/10261/131531
  2. Abrantes, F. & Moita M.T (1999). https://doi.org/10.1016/S0399-1784(99)80055-3
  3. Cachão, M. & Moita M.T (2000). https://doi.org/10.1016/S0377-8398(00)00018-9
  4. Moita, M.T.; Silva, A.; Palma, S.; Vilarinho, M.G.; Moita, M. T.; Vilarinho, M. G.. "The coccolithophore summer–autumn assemblage in the upwelling waters of Portugal: Patterns of mesoscale distribution (1985–2005)". Estuarine, Coastal and Shelf Science 87 3 (2010): 411-419. http://dx.doi.org/10.1016/j.ecss.2010.01.025
  5. Relatórios de dados de fitoplâncton, para cada um dos cruzeiros CICLOS e AREAS, intitulados “Ciclos de produção fitoplanctónicos na costa portuguesa e sua relação com os recursos pesqueiros”. Relatórios Técnico-científicos do INIP/IPIMAR.

Additional Metadata