Planktonic Production Cycles and their Relationship with Fishing Resources on the Portuguese Coast

Data as a DwC-A file	download 804 records in English (3 MB) - Update frequency: unknown
Metadata as an EML file	download in English (42 KB)
Metadata as an RTF file	download in English (12 KB)

Description

The “Ciclos de Produção Planctónica e a sua Relação com os Recursos Pesqueiros” project aimed to describe the dynamics of planktonic communities associated with the coastal upwelling system in Portugal.

The dataset refers to the sampling carried out between 21 August and 3 September 1985, 23 November and 2 December 1985 and, 20 March and 4 April 1986 with the RV "Noruega". The zooplankton sampling was carried out at 104 stations in an area off Portugal coast, defined by the 20 and 1000-meter isobathymetrics. The collection of zooplanktonic was carried out using a FAO net - 90 cm in diameter and 505 μm in mesh opening - in double oblique trawls, from the surface to a maximum depth of 200 m. In stations with depths of less than 200 m, sampling was carried out from circa 5 meters of the bottom to the surface. The volume of filtered water was determined using a previously calibrated flow meter located within the mouth of the net. The speed of the trawls was about 50 m per min., with the total drag time being measured and the cable angles recorded every 10 meters during the ascent of the net.

This report is a repository of the identification and enumeration data of zooplankton samples. It is intended to contribute to the establishment of a zooplankton database for the Portuguese coast and make it accessible to interested users. In this sense, data processing is minimal, with care taken to control the quality of the data and to standardise the units in which the values are expressed.

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 804 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.

804

108078

31374

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:

Cunha M E, Quintela F, Massapina C, Rodrigues T, Varela F, Niza H, dos Santos A (2024). Planktonic Production Cycles and their Relationship with Fishing Resources on the Portuguese Coast. Version 1.13. IPMA - Instituto Português do Mar e da Atmosfera. Samplingevent dataset. http://ipt.gbif.pt/ipt/resource?r=ciclos85&v=1.13

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 been registered with GBIF, and assigned the following GBIF UUID: b1e40c45-7b1e-42f1-9b12-0b7a7e0ea2ac. IPMA - Instituto Português do Mar e da Atmosfera publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF Portugal.

Keywords

Samplingevent; Animalia; Chromista; Ctenophora; Fall; Foraminifera; Marine; Portugal; SamplingEvent; Spring; Summer; Winter