Recent coastal anthropogenic impact recorded in the Basque mud patch (southern Bay of Biscay shelf)

Irabién, María Jesús; Cearreta, Alejandro; Gómez-Arozamena, José; Gardoki, Jon; Martín-Consuegra, Aitor Fernández

doi:10.1016/j.quaint.2020.03.042

Cited by 9 publications

(5 citation statements)

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“…Its lowest palaeontological record, dated to the 1920s, comes from pollen of the Basque Mud Patch (Irabien et al . 2020). The fossil records of shipworms in San Francisco Bay, Pacific oysters in British Columbia, mitten crabs in European waters, and of the giant African snail in Malaysia are, as yet, undetermined.…”

Section: Palaeontological Characteristics Of Human Interactions With ...mentioning

confidence: 99%

“…For the interval 1910–1920s: (1) the influx of the giant African land snail ( Achatina fulica ) into the Malay Peninsula during the 1910s (Hausdorf 2018); (2) the invasion of San Francisco Bay by the wood‐boring ‘naval shipworm’ (the mollusc Teredo navalis ) in 1913 (Cohen 2004; CABI 2019 a ); (3) the introduction of the Pacific oyster ( M. gigas ) into the coastal waters of British Columbia in 1912 (CABI 2021); (4) the planting of pine trees ( Pinus patula and P. radiata ) in the East African Rift Valley Highlands during the 1910s (Kiage & Liu 2009); (5) the presence of eucalyptus pollen ( Eucalyptus trees) in the marine record of the southern Bay of Biscay from the 1920s (Irabien et al . 2020); (6) the arrival of the Chinese mitten crab ( Eriocheir sinensis ) into north European estuaries and rivers first recorded in 1912 (Herborg et al . 2003); (7) the introduction of the bivalve mollusc Mytilaster lineatus to the Caspian Sea between 1917 and 1919 (Grigorovich et al .…”

Section: Palaeontological Characteristics Of Human Interactions With ...mentioning

confidence: 99%

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Planetary‐scale change to the biosphere signalled by global species translocations can be used to identify the Anthropocene

et al. 2022

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We examine three distinctive biostratigraphic signatures of humans associated with hunting and gathering, landscape domestication and globalization. All three signatures have significant fossil records of regional importance that can be correlated inter‐regionally and help describe the developing pattern of human expansion and appropriation of resources. While none have individual first or last appearances that provide a globally isochronous marker, all three signatures overlap stratigraphically, in that they are part of a continuum of change, with complex regional patterns. Here we show that during the later stages of globalization, late nineteenth to twentieth century records of species translocations can be used to build an interconnected web of palaeontological correlation with decadal or sub‐decadal precision that dovetails with other stratigraphic markers for the Anthropocene. This palaeontological web is also a proxy for accelerating species extinction and of a state shift in the biosphere in the twentieth century.

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Section: Palaeontological Characteristics Of Human Interactions With ...mentioning

confidence: 99%

Section: Palaeontological Characteristics Of Human Interactions With ...mentioning

confidence: 99%

Planetary‐scale change to the biosphere signalled by global species translocations can be used to identify the Anthropocene

et al. 2022

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“…Por último, Irabien et al (2020) exploraron el impacto antrópico sobre los sedimentos de la plataforma continental adyacente al País Vasco que recibe el vertido de los materiales en suspensión provenientes de doce sistemas fluviales (alrededor de 1,57×10 6 t año −1 ). El testigo KS-04 (44 cm de longitud) se perforó a 135 m de profundidad en un extenso depósito sedimentario de grano fino (680 km 2 ), denominado Basque Mud Patch y situado frente a la ciudad de Donostia-San Sebastián.…”

Section: Ejemplos En Nuestro Territoriounclassified

Datación de sedimentos recientes utilizando radionucleidos de vida corta

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Gómez-Arozamena²,

Irabién³

et al. 2022

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Se presentan las características principales del método de datación de sedimentos recientes mediante el radioisótopo natural 210Pb y su validación utilizando radionucleidos artificiales tales como 137Cs y 239,240Pu. Se hace una revisión de los principios generales de esta metodología, se aportan recomendaciones prácticas para la recogida de testigos sedimentarios en el campo y su posterior procesamiento en el laboratorio, se describen diferentes técnicas analíticas utilizadas en la determinación de sus concentraciones y se explican brevemente varios modelos para la interpretación de los perfiles obtenidos. Por último, se incluyen ejemplos prácticos de su aplicación en secuencias sedimentarias procedentes de distintos ambientes marinos (estuario, bahía y plataforma continental) en el norte de la Península Ibérica.

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“…Marine sediment fluxes result from a combination of natural and anthropogenic forcing factors [1,2]. The main source of sediment load comes from land, and the resuspension of sediments occurs under the effect of waves, tides and the oceanic general circulation, but also from fish trawling and maritime development, such as harbor sediment dredging and dumping, aggregate extraction, submarine cable installation, offshore wind farm exploitation, oil and gas activities, etc.…”

Section: Introductionmentioning

confidence: 99%

End-to-End Neural Interpolation of Satellite-Derived Sea Surface Suspended Sediment Concentrations

et al. 2022

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The characterization of suspended sediment dynamics in the coastal ocean provides key information for both scientific studies and operational challenges regarding, among others, turbidity, water transparency and the development of micro-organisms using photosynthesis, which is critical to primary production. Due to the complex interplay between natural and anthropogenic forcings, the understanding and monitoring of the dynamics of suspended sediments remain highly challenging. Numerical models still lack the capabilities to account for the variability depicted by in situ and satellite-derived datasets. Through the ever increasing availability of both in situ and satellite-derived observation data, data-driven schemes have naturally become relevant approaches to complement model-driven ones. Our previous work has stressed this potential within an observing system simulation experiment. Here, we further explore their application to the interpolation of sea surface sediment concentration fields from real gappy satellite-derived observation datasets. We demonstrate that end-to-end deep learning schemes—namely 4DVarNet, which relies on variational data assimilation formulation—apply to the considered real dataset where the training phase cannot rely on gap-free references but only on the available gappy data. 4DVarNet significantly outperforms other data-driven schemes such as optimal interpolation and DINEOF with a relative gain greater than 20% in terms of RMSLE and improves the high spatial resolution of patterns in the reconstruction process. Interestingly, 4DVarNet also shows a better agreement between the interpolation performance assessed for an OSSE and for real data. This result emphasizes the relevance of OSSE settings for future development calibration phases before the applications to real datasets.

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Recent coastal anthropogenic impact recorded in the Basque mud patch (southern Bay of Biscay shelf)

Cited by 9 publications

References 74 publications

Planetary‐scale change to the biosphere signalled by global species translocations can be used to identify the Anthropocene

Planetary‐scale change to the biosphere signalled by global species translocations can be used to identify the Anthropocene

Datación de sedimentos recientes utilizando radionucleidos de vida corta

End-to-End Neural Interpolation of Satellite-Derived Sea Surface Suspended Sediment Concentrations

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