Toxic phytoplankton dynamics on the Portuguese Coast

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 1,759 records in English (2 MB) - Update frequency: unknown
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Description

The present phytoplankton dataset was obtained during seven surveys aboard the R/V Noruega from IPIMAR, as part of the project “Dinâmica do Fitoplâncton tóxico na costa portuguesa”. The campaigns took place from July 89 to March 95.

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 1,759 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)
1759
Occurrence 
226634
ExtendedMeasurementOrFact 
2012

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, Carreira A, Mendes P, dos Santos Morais A, Palma A S, da Graça Vilarinho M, dos Santos A, Silva A D, Niza H (2024). Toxic phytoplankton dynamics on the Portuguese Coast. Version 1.7. IPMA - Instituto Português do Mar e da Atmosfera. Samplingevent dataset. http://ipt.gbif.pt/ipt/resource?r=toxic_phytoplankton&v=1.7

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
Instituto Português do Mar e da Atmosfera, I. P. (IPMA)
Augusto Carreira
  • Originator
Instituto Português do Mar e da Atmosfera, I. P. (IPMA)
Paula Mendes
  • Originator
Instituto Português do Mar e da Atmosfera, I. P. (IPMA)
Armindo dos Santos Morais
  • Originator
Instituto Português do Mar e da Atmosfera, I. P. (IPMA)
Ana Sofia Palma
  • Originator
Instituto Português do Mar e da Atmosfera, I. P. (IPMA)
Maria da Graça Vilarinho
  • Originator
Instituto Português do Mar e da Atmosfera, I. P. (IPMA)
Antonina dos Santos
  • Metadata Provider ●
  • Originator ●
  • Point Of Contact
Instituto Português do Mar e da Atmosfera, I. P. (IPMA)
Lisbon
PT
Alexandra D. Silva
  • Metadata Provider ●
  • Originator ●
  • Point Of Contact
Instituto Português do Mar e da Atmosfera, I. P. (IPMA)
Lisbon
PT
Henrique Niza
  • Metadata Provider ●
  • Originator ●
  • User ●
  • Point Of Contact
Instituto Português do Mar e da Atmosfera, I. P. (IPMA)
Lisbon
PT

Geographic Coverage

Campaigns covered the coastal area of Portugal, from Caminha to V.R. Sto António (1989 to 1992), and along four transects perpendicular to the coast, numbered from 00 to 03, starting from the southern coast to the northern coast (1994 and 1995).

Bounding Coordinates South West [36.167, -10.567], North East [41.867, -7.317]

Taxonomic Coverage

N/A

Kingdom Chromista
Phylum Bacillariophyta
Class Bacillariophyceae
Order Asterolamprales
Family Asterolampraceae

Sampling Methods

For the qualitative and quantitative analysis of phytoplankton from these six surveys, 250 ml samples of seawater were collected and placed in brown plastic bottles.

Study Extent From 1989 to 1992 - At each sampling station, depth levels of 0 and 20 meters were sampled using "Nansen" bottles. In 1994 and 1995 - At each sampling station, depth levels of 0, 10, 20, 30, 50 and 75 meters were sampled using "Nansen" bottles.
Quality Control 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%.

Method step description:

  1. In the laboratory, subsamples of 100 ml were placed to sediment in counting chambers for 72 hours. Phytoplankton enumeration was performed using the Utermöhl technique, on a ZEISS IM35 inverted microscope equipped with bright field and phase contrast.

Bibliographic Citations

  1. Cachão, M. & Moita M.T (2000). https://doi.org/10.1016/S0377-8398(00)00018-9
  2. 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
  3. Relatórios de dados de fitoplâncton, para cada um dos cruzeiros, intitulados “Dinâmica do fitoplâncton tóxico na costa portuguesa”. Relatórios Técnico-científicos do INIP/IPIMAR.

Additional Metadata