Rare earth and trace elements in deep-sea sponges of the North Atlantic

Cátia Figueiredo; Miguel Caetano; Mário Mil-Homens; Inês Tojeira; Joana R Xavier; Rui Rosa; Joana Raimundo

doi:10.1016/j.marpolbul.2021.112217

Rare earth and trace elements in deep-sea sponges of the North Atlantic

Mar Pollut Bull. 2021 May:166:112217. doi: 10.1016/j.marpolbul.2021.112217. Epub 2021 Mar 15.

Authors

Cátia Figueiredo¹, Miguel Caetano², Mário Mil-Homens³, Inês Tojeira⁴, Joana R Xavier⁵, Rui Rosa⁶, Joana Raimundo²

Affiliations

¹ Laboratório Marítimo da Guia, MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Av. Nossa Senhora do Cabo, 939, 2750-374 Cascais, Portugal; Division of Oceanography and Marine Environment, IPMA - Instituto Português do Mar e da Atmosfera, Av. Alfredo Magalhães Ramalho, 6, 1495-165 Algés, Portugal. Electronic address: cafigueiredo@fc.ul.pt.
² Division of Oceanography and Marine Environment, IPMA - Instituto Português do Mar e da Atmosfera, Av. Alfredo Magalhães Ramalho, 6, 1495-165 Algés, Portugal; CIIMAR - Interdisciplinary Centre of Marine and Environmental Research of the University of Porto, 4450-208 Matosinhos, Portugal.
³ Division of Oceanography and Marine Environment, IPMA - Instituto Português do Mar e da Atmosfera, Av. Alfredo Magalhães Ramalho, 6, 1495-165 Algés, Portugal.
⁴ Task Group for the Extension of the Continental Shelf (EMEPC), R. Costa Pinto 165, 2770-047 Paço de Arcos, Portugal.
⁵ Task Group for the Extension of the Continental Shelf (EMEPC), R. Costa Pinto 165, 2770-047 Paço de Arcos, Portugal; University of Bergen, Department of Biological Sciences and KG Jebsen Centre for Deep-Sea Research, 5006 Bergen, Norway.
⁶ Laboratório Marítimo da Guia, MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Av. Nossa Senhora do Cabo, 939, 2750-374 Cascais, Portugal.

PMID: 33735703
DOI: 10.1016/j.marpolbul.2021.112217

Abstract

The available data on trace elements (TE) of deep-sea organisms is scarce and nonexistent for rare earth elements (REE). Hence, this study characterizes REE and TE in five porifera genera (Jaspis, Geodia, Hamacantha, Leiodermatium, Poliopogon) collected in deep-sea areas (between 481 and 2656 m) of the North Atlantic. Aluminium was the most common TE while lead was the less abundant. These sponges showed an increased accumulation of TE compared with other probably influenced by volcanic activity. Poliopogon amadou sampled at the deepest location presented the highest concentration of all REE. All studied species exhibited a Light REE enrichment in comparison to Heavy REE and showed a negative Ce anomaly with a less conspicuous Eu depletion. Besides the establishment of a baseline for future comparisons, this study provides the first record of REE in a sessile deep-sea marine invertebrate group.

Keywords: Deep-sea; Rare earth elements; Sponges; Trace elements.

MeSH terms

Metals, Rare Earth*
Trace Elements*

Substances

Metals, Rare Earth
Trace Elements