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PELD - ELPA | Dynamics of Submerged Aquatic Vegetation in the Patos Lagoon estuary

Latest version published by Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr on Jul 1, 2022 Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr

The monitoring study aims to investigate long term changes in Submerged Aquatic Vegetation (SAV) abundance and composition of the Patos Lagoon estuary, and their possible relationship with regional climate and hydrology. By providing a 20 year long time series of Ruppia maritima habitats and attached macroalgae, the temporal series are providing field basis and evidences to study the consequences of climate variability and climate changes in these communities.

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 197 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)
    197
  • ExtendedMeasurementOrFact 
    394
  • Occurrence 
    394

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.

Downloads

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 197 records in English (19 KB) - Update frequency: unknown
Metadata as an EML file download in English (22 KB)
Metadata as an RTF file download in English (14 KB)

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:

Copertino M (2018): PELD - ELPA | Dynamics of Submerged Aquatic Vegetation in the Patos Lagoon estuary. v1.13. Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr. Dataset/Samplingevent. https://ipt.sibbr.gov.br/peld/resource?r=dynamics_of_submerged_aquatic_vegetation_-_divas&v=1.13

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr. 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: 42a88234-f16a-4497-9205-04135ef32266.  Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF Brazil.

Keywords

Samplingevent; ENSO; Occurrence; fluvial discharge; submerged aquatic vegetation (SAV); Ruppia maritima; drift macroalgae; Patos Lagoon estuary

Contacts

Who created the resource:

Margareth Copertino
Researcher
FURG - University of Rio Grande Av. Itália Km 08 P.O. Box 474 96205001 Rio Grande Rio Grande do Sul BR

Who can answer questions about the resource:

Valéria Marques Lemos
Researcher
FURG - University of Rio Grande Av. Itália Km 08 96205001 Rio Grande Rio Grande do Sul BR
Marianna Lanari
Researcher
FURG - University of Rio Grande Av. Itália Km 08 96205001 Rio Grande Rio Grande do Sul BR

Who filled in the metadata:

Margareth Copertino
Researcher
FURG - University of Rio Grande Av. Itália Km 08 P.O. Box 474 96205001 Rio Grande Rio Grande do Sul BR

Who else was associated with the resource:

Principal Investigator
Margareth Copertino
researcher
FURG - University of Rio Grande Av. Itália Km 08 P.O. Box 474 96205001 Rio Grande Rio Grande do Sul BR
Point Of Contact
Clarisse Odebrecht
researcher
FURG - University of Rio Grande Av. Itália Km 08 P.O. Box 474 96205001 Rio Grande Rio Grande do Sul BR +555332336520
Point Of Contact
Eduardo Resende Secchi
Researcher and Coordinator of the Brazilian Long Term Ecological Research (PELD Site 8)
FURG - University of Rio Grande Av. Itália Km 08 P.O. Box 474 96205001 Rio Grande Rio Grande do Sul BR 5332336538

Geographic Coverage

The Patos Lagoon at the extreme southern Brazilian coastal plain (Rio Grande do Sul State) is the largest (10,360 km2) choked lagoon in the world and second largest lagoon in South America. The lagoon streches along 290 km long in a NE-SW direction, between the city of Porto Alegre (30º30’ S) and Rio Grande (32º12’ S). In the southern estuarine region, approximately 10 % of total area, a single and narrow inlet connects this lagoon to the Atlantic Ocean. The major tributary rivers at the northern and central areas of Patos Lagoon, and the São Gonçalo channel at the southern area, are significant freshwater sources from an extensive drainage basin. The hydrodynamics of Patos Lagoon estuary is strongly controlled by the discharge of tributary rivers and the action of predominant meteorological factors like winds, rainfall and evaporation.

Bounding Coordinates South West [-32.17, -52.26], North East [-31.61, -51.74]

Taxonomic Coverage

No Description available

Kingdom  Plantae
Subkingdom  Viridiplantae
Phylum  Tracheophyta,  Chlorophyta,  Rodophyta
Class  Monocots,  Ulvophyceae,  Florideophyceae
Order  Alismatales,  Ulvales,  Cladophorales,  Acrochetiales,  Ceramiales
Family  Ruppiaceae,  Ulvaceae,  Cladophoraceae,  Acrochaetiaceae,  Rhodomelaceae
Genus  Ruppia,  Ulva,  Rhizoclonium,  Cladophora,  Chaetomorpha,  Rhizoclonium,  Polysiphonia,  Acrochaetium
Species  Ruppia maritima,  Ulva intestinalis,  Ulva compressa,  Ulva clathrata,  Ulva ramulosa,  Ulva sp,  Rhizoclonium riparium,  Chaetomorpha antennina,  Chaetomorpha sp

Temporal Coverage

Start Date / End Date 2000-01-17 / 2016-05-20

Project Data

To evaluate variations on the Patos Lagoon estuary biota in response to hidrological long-term changes related to climatic events and anthropic action.

Title Long-term studies to assess natural and anthropogenic impacts on the estuary of the Patos Lagoon and Adjacent Coast.
Identifier PELD-ELPA
Funding Long term research program (PELD) of the Brazilian Ministry of Sciences/National Science and Technology Council (CNPq)
Study Area Description The Patos Lagoon at the southern Brazilian coastal plain (Rio Grande do Sul state) is the largest (10,360 km2) choked lagoon in the world stretching in a NE-SW direction from the city of Porto Alegre (30o 30’ S) to Rio Grande (32o 12’ S). In the southern estuarine region, approximately 10 % of total area, a single and narrow inlet connects this lagoon to the Atlantic Ocean. The major tributary rivers at the northern and central areas of Patos Lagoon, and the São Gonçalo channel at the southern area, are significant freshwater sources from an extensive drainage basin. The hydrodynamics of Patos Lagoon estuary is strongly controlled by the discharge of tributary rivers and the action of predominant meteorological factors like winds, rainfall and evaporation.
Design Description The sampling area on the Patos Lagoon estuary extends from the inner estuary, channel environments and shallow coastal region, including the adjacent oceanic beach and coastal margin of the continental shelf. Different sampling strategies are used, according to the goals and characteristics of the abiotic and biotic data to be obtained. Meteorological data, current and climatic indexes are also used. Terrestrial and aquatic vehicles are used for sampling.

The personnel involved in the project:

Principal Investigator
Margareth Copertino

Sampling Methods

Sampling description: The SAV was monthly monitored within a meadow in six points along a 450m transect area. The transect is 450 m long and about 2 m wide In each sampling area, the percentage cover of macroalgae were visually estimated within 25x 25 cm quadrats (N=3). The SAV biomass were sampled by using cylindrical cores, buried into the sediment (ø 10cm, 15 cm depth) (N=3 per plot; total N=18). The samples were previously washed in the field with the help of sieves, packed and transported to the laboratory with ice. In the laboratory, the biomass samples are washed and cleaned from sediments, debris and associated fauna. The plant biomass is divided into their functional groups: rooted plants, macroalgae and epiphyte algae. The rooted plants are divided into bellowground and aboveground fractions. Plant development and phenology is also recorded. Epiphyte algae are removed from the leaves, by scraping the leaves with a surgical blade. Several demographic parameters are obtained for the rooted plants such as: hast length, leaves length, number of shoots, total rhizome length, number of nodes along the rhizome. The dry weight (48 h at 60°C) is obtained for Ruppia maritima (bellowground and aboveground) and for the group of macroalgae. Taxonomical analyses of macroalgal were performed by thallus anatomy using stereomicroscopy and optical microscopy.

Study Extent The studied meadow covers approximately 1000m2 from a shallow estuarine area (mesomixohaline region) of the Patos Lagoon estuary. The sampling design aims to cover the center of the meadow and their edges. The meadow is surveyed monthly along a 450m fixed transect. The meadow is marked in six fixed positions, with fixed wodden posts buried into the sediemt. The transect line is parallel to the coast, distant 500m of an estuarine Island (Pombas Island). This site has been continuously monitored since January 2000. The data inserted in the data basis covers the monthly average, from Janaury 2000 to May 2016.
Quality Control Samples were collected by the Project Coordinator, Post-Docs, Post-Graduate and trainned undergraduated students. The methodoligical approach and methods were the same along during the 16 years time. The quality of data was checked monthly by the VAS Project Coordinator.

Method step description:

  1. SAV (plants and macroalgae) is surveyed for cover, biomass and demographic parameters. In the field, the presence of the meadow and the percentage cover is visually estimated. The plants are manually collected by cores, stored in refrigerator and analysed in 2 to 5 days. Plant dry biomass ad organic matter is obtained.

Additional Metadata

Purpose The general purposes of this data bank are to provide information on Submerged Aquatic Vegetation sampled on the Patos Lagoon estuary.
Maintenance Description The data bank is continously checked and complemented, in general with a weekly and monthly approach.
Alternative Identifiers 42a88234-f16a-4497-9205-04135ef32266
https://ipt.sibbr.gov.br/peld/resource?r=dynamics_of_submerged_aquatic_vegetation_-_divas