12 documents found, page 1 of 2
Multi-element profiles as a fingerprint to discriminate estuarine R. philippina...
Vieira, Soraia; Barrulas, Pedro; Chainho, Paula; Dias, Cristina; Sroczynska, Katarzyna; Adão, HelenaFilter-feeder bivalves such as non-indigenous Ruditapes philippinarum absorb and accumulate metals, resulting in multi-element signatures. The goal of this study was to analyse if multi-element profiles of R. philippinarum can discriminate between spatial and temporal patterns of estuarine bivalves’ populations. Spatial and temporal variability patterns of chemical profiles were assessed by collecting samples o...
Combining metagenomics with morphology-based approaches to understand microbiom...
Vieira, Soraia; Sroczynska, Katarzyna; Martins, Marta; Costa, M.H.; Neves, Joana; Adão, Helena; Vicente, ClaudiaSediment microbiome has an essential role in regulating ecosystem functions, not only regulating primary productivity and nutrient cycling but also shaping trophic interactions with higher trophic levels. While the importance of microbiome in terrestrial soil systems is highly recognized, its role in marine aquatic environments remains much less studied. Microbiome can be highly affected by bottom up (abiotic f...
Spatial and Temporal Distribution of the Multi-element Signatures of the Estuar...
Vieira, Soraia; Barrulas, Pedro; Chainho, Paula; Dias, Cristina; Sroczynska, Katarzyna; Adão, HelenaFilter-feeder bivalves such as non-indigenous Ruditapes philippinarum absorb and accumulate metals, resulting in multi-element profiles.. The goal of this study was to analyse spatial and temporal distributions of the multi-element signatures in R. philippinarum populations of the Tagus and Sado estuaries (SW coast, Portugal). The clam and sediment samples were collected at three sampling sites in each estuary,...
M162 – GLORIA FLOW: Exploring subsurface fluid flow and active dewatering along...
Adao, Helena; Sroczynska, KatarzynaBetween 06.03.2020 and 11.04.2020 a R/V Meteor cruise M162 was conducted along the unexplored area of the Gloria Fault between the Azores Plateau and the Madeira-Tore Rise in the central Northeast Atlantic.The results obtained during the cruise might have important implications concerning the alteration of oceanic lithosphere and their control on tectonic and seismic activity as well as the spread of chemosyn t...
Meiofauna in a changing world
Moens, Tom; Sroczynska, Katarzyna; Adão, HelenaThis special issue emerged under the umbrella of the 17th International Meiofauna Conference (SeventIMCO), which celebrated the 50th anniversary (1969–2019) of the International Association of Meiobenthologists under the general theme “Meiofauna in a changing world”. Traditionally, the triannual IMCO is the major assembly for scientists who are active in very divergent disciplines such as taxonomy, phylogeny, e...
What makes a better indicator? Taxonomic vs functional response of nematodes to...
Sroczynska, Katarzyna; Chainho, Paula; Soraia, Vieira; Helena, AdaoEfficient implementation of nematodes-based indices for ecological quality assessment requires fundamental knowledge on their biodiversity and functional patterns along with the drivers that generate these patterns. Though, it is still unclear if nematodes taxonomical attributes are driven by the same environmental drivers as their functional (biological traits) counterparts, or if their taxonomical diversity i...
Food web structure of three Mediterranean stream reaches along a gradient of an...
Sroczynska, Katarzyna; Williamson, Tanner; Claro, Marilia; Gonzalez-Perez, Jose Antonio; Range, Pedro; Boski, Tomasz; Chicharo, LuisAnthropogenic impact can alter food web structure through changes in species interactions. In this study, we explored the food web of three Mediterranean stream reaches (two seasonal and one permanent) along an anthropogenic impact gradient to test the hypothesis that increasing impact simplifies food webs. To test this, we applied the isotopic (δ13C and δ15N) niche concept to compare reaches using isotopic met...
Food web, taxonomy and functional level community response to large-scale bioge...
Sroczynska, Katarzyna; Pereira, Catia; Faisca, Pedro; Castillo-Escriva, Andres; Ribeiro, Sara; Raposeiro, Pedro; Ersoy, Zeynep; Araujo, MiguelFood webs are being increasingly used to predict ecosystem stability. The ultimate food web properties already account for the abiotic (environment) and biotic interactions (i.e. predator-prey interactions). While the importance of abiotic environment on a single taxonomical or functional diversity is being recognized, the role of environment in structuring trophic interactions is less explored. Additionally, f...
Abundance-body mass relationships structuring aquatic food webs across biogeogr...
Ersoy, Zeynep; Castillo-Escriva, Andres; Pereira, Catia; Sroczynska, Katarzyna; Ribeiro, Sara; Araujo, Miguel; Matias, MiguelMost of the biological rates (growth, metabolic, reproduction) are greatly associated with body mass. Trophic interactions are also highly dependent on body mass due to feeding constraints. Scaling of body mass with abundance, known as size spectrum, provides information on community structure, energy flow, and ecosystem functioning. However, not many studies have incorporated individual body mass-abundance sca...
Combining eDNA metabarcoding and morphological-based approaches to increase res...
Pereira, Catia; Sroczynska, Katarzyna; Faisca, Pedro; Castillo-Escriva, Andres; Ribeiro, Sara; Ersoy, Zeynep; Raposeiro, Pedro; Gilbert, MTPEnvironmental DNA (eDNA) metabarcoding has the potential to improve aquatic biodiversity assessments by improving detection capability, taxonomic resolution and cost-effectiveness when compared to morphological- based approaches. Advances have been made in the field of metabarcoding, but challenges remain, including sensitivity of results to DNA extraction method and marker choice, and its dependency on often-i...