PELD - ELPA | Effect of short-term meteorological disturbance on submergem aquatic vegetation and associated fauna
PELD - ELPA | Programa Pesquisa Ecológica de Longa Duração no Estuário da Lagoa dos Patos e Costa Marinha Adjacente
Description
This dataset has environmental and ecological data from submerged aquatic vegetation and associated benthic macrofauna, in Justino Bay (Patos Lagoon Estuary – BR) before and after four meteorological shot-term disturbances, during march/2019, may/2019, august/2019 and november/2019. The Darwin-Core file is organized in an event and location spreadsheet (Event Core) with 432 data records, a qualitative species occurrence spreadsheet (Occurrence Extension) with 18361 data records, and a quantitative macrofauna density, seagrass morphology and environmental parameters spreadsheet (ExtMoF) with 15652 measurements.
Geographic Description
Seagrass Meadow, Seagrass Edge, Sandflat, Justino Bay, Patos Lagoon Subtropical Estuary, Rio Grande, Rio Grande do Sul, Southern Brazil.
Purpose
This study is a short-term research demand by Brazilian Long-Term Ecological Research Program (LTER) - site Patos Lagoon Estuary and adjacent marine coast (PLEA), a well-established and consolidated ecological monitoring that has datasets on coastal biotic and abiotic parameters since 1998.In the context of global climate changes, we aimed to evaluate the influence of the occluded fronts,a natural meteorological phenomenon, which has become more intense, on composition and structure of macrobenthic infaunal and epifaunal assemblages, the damage caused to submerged aquatic vegetation, and its dumped effect, in a subtropical estuarine seagrass meadow dominated by Ruppia maritima Linnaeus, 1753, and adjacent sandflats.
Data quality
The sampled material was processed by specialists, based on accepted and applied manuals for sampling (LANA et al., 2006; TURRA; DENADAI, 2015), taxonomy (AMARAL; RIZZO; ARRUDA, 2006; BUCKUP; BOND-BUCKUP; ARENZON, 1999; LARKUM; ORTH; DUARTE, 2006; RIOS, 1994) and methodology (DAVIES, 1974; LAVERY; KENDRICK, 2001; SUGUIO, 1973). Taxonomic validity was verified using the World Register of Marine Species (WoRMS; www.marinespecies.org) and in National Center for Biotechnology Information https://www.ncbi.nlm.nih.gov).
Methods
Submarged Aquatic Vegetation: During each sampling event, SAV visual coverage and canopy height (quadrat, 1 m²), and biomass (core: 0.1 X 0.1 m) were collected in each transect and habitat (N total = 216 samples). In the laboratory, plants fresh biomass was separated from macrobenthic organisms and sorted out in R. maritima/ Z. palustris and in P.striatus according to leaf morphology. Below (roots and rhizomes) and aboveground (shoots and leaves) biomass were separated for determination of dry weight (48 h, 60 °C; McKenzie et al., 2003). Benthic Macrofauna: Benthic macrofauna were sampled with cylindrical core (0.008 m²), stratified between 0 - 0.1 m and 0.1 - 0.2 m, for each transect and habitat (N total = 216 samples for each stratum). The samples were sieved through a 300 µm mesh and kept fresh just to pre-sort fauna and flora. Macrofauna was fixed with 4 % formalin, identified and preserved in alcohol 70 %. Environmental Parameters: Surface water temperature (mercury thermometer) and salinity (portable RH0-90 refractometer) were taken at the beginning of each field sampling. Sediment samples were performed in duplicate for each transects and habitat with cylindrical core (0.002 m², 0.1 m depth, total N=144) for granulometric analyses and determination of organic matter content. Granulometry was analyzed using method described by Suguio (1973). Organic matter content was determined by the loss on ignition method (DAVIES, 1974)
Citation
Misturini D, Lemos V, Lanari M, Colling L (2021): Effect of short-term meteorological disturbance on submergem aquatic vegetation and associated fauna. v1.0. Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr. Dataset/Samplingevent. https://ipt.sibbr.gov.br/peld/resource?r=meteorological_disturbances_vas_benthic_macroinvertebrates&v=1.0
Rights
This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License.
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Click to view records for the PELD - ELPA | Effect of short-term meteorological disturbance on submergem aquatic vegetation and associated fauna resource.Metadata last updated on 2023-04-11 23:54:45.0