• Assessment of the ecological quality status of the Sepetiba Bay (SE Brazil): When metabarcoding meets morphology on foraminifera 

      Damasceno, Fabrício Leandro; Martins, Maria Virgínia; Frontalini, Fabrizio; Pawlowski, Jan; Cermakova, Kristina; Barrenechea Angeles, Inés; Santos, Luiz Guilherme Costa; Mendonça Filho, João Graciano; Francescangeli, Fabio; Senez-Mello, Thaise M.; Castelo, Wellen Fernanda Louzada; Rebouças, Renata Cardia; Duleba, Wania; Sousa, Silvia Helena de Mello; Laut, Lazaro; Antonioli, Luzia (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-01-09)
      In recent years, the region surrounding Sepetiba Bay (SB; SE Brazil) has become a hub of intense urban expansion and economic exploitation in response to ore transport and industrial and port activities. As a result, contaminants have been introduced into the bay, leading to an overall worsening of the environmental quality. The present work applies for the first time a foraminiferal morphology-based ...
    • Assigning the unassigned: A signature-based classification of rDNA metabarcodes reveals new deep-sea diversity 

      Barrenechea Angeles, Inés; Nguyen, Ngoc-Loi; Greco, Mattia; Tan, Koh Siang; Pawlowski, Jan (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-02-29)
      Environmental DNA metabarcoding reveals a vast genetic diversity of marine eukaryotes. Yet, most of the metabarcoding data remain unassigned due to the paucity of reference databases. This is particularly true for the deep-sea meiofauna and eukaryotic microbiota, whose hidden diversity is largely unexplored. Here, we tackle this issue by using unique DNA signatures to classify unknown metabarcodes ...
    • Biogeochemical impact of historical submarine mine tailings on benthic ecosystems in the Repparfjord (Northern Norway) 

      Hoff, Marie; Argentino, Claudio; Huljek, Laura; Fiket, Zeljka; Mun, Yulia; Barrenechea Angeles, Inés; Strmic Palinkas, Sabina; Panieri, Giuliana (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-03-08)
      Historical copper mine tailings deposited in the Repparfjord, Northern Norway, provided new insight into the biogeochemical impact of submarine tailings disposals on high-latitude coastal ecosystems. The submarine tailings disposal in the Repparfjord represents a product of mining activities between 1972 and 1979. Their environmental impact has been extensively studied during the last decade, but ...
    • An Integrative Taxonomic Survey of Benthic Foraminiferal Species (Protista, Rhizaria) from the Eastern Clarion-Clipperton Zone 

      Himmighofen, Oceanne E.; Holzmann, Maria; Barrenechea Angeles, Inés; Pawlowski, Jan; Gooday, Andrew J. (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-24)
      The abyssal Pacific Clarion Clipperton Zone (CCZ) hosts vast, commercially valuable seafloor deposits of polymetallic nodules. Foraminifera (testate protists) dominate benthic communities in this region. Here, we present a taxonomic survey, combining morphological and genetic data and focussing on mainly meiofauna-sized Foraminifera from the eastern CCZ. Sequences obtained from >100 specimens, the ...