The Bay of Biscay

Borja, Ángel; Amouroux, David; Anschutz, Pierre; Gómez‐Gesteira, M.; Uyarra, María C.; Valdés, Luis

doi:10.1016/b978-0-12-805068-2.00006-1

Cited by 22 publications

(22 citation statements)

References 164 publications

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“…Changes in the relative contribution of Arthropoda to the overall biodiversity were aligned with the latitudinal extremes, being highest in the Baltic Sea and at a minimum in the Red Sea. Community composition in Bay of Biscay and Western Mediterranean Sea was highly comparable, with Rhodophyta, Annelida and Arthropoda being the major constituents, with these two regions sharing the highest percentage of ASVs with this observation similar to previous non-ARMS studies (Borja et al, 2004(Borja et al, , 2019Cahill et al, 2018;Wangensteen & Turon, 2015).…”

Section: F I G U R Esupporting

confidence: 86%

Pan‐regional marine benthic cryptobiome biodiversity patterns revealed by metabarcoding Autonomous Reef Monitoring Structures

et al. 2020

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Autonomous Reef Monitoring Structures (ARMS) have been applied worldwide to characterize the critical yet frequently overlooked biodiversity patterns of marine benthic organisms. In order to disentangle the relevance of environmental factors in benthic patterns, here, through standardized metabarcoding protocols, we analyse sessile and mobile (<2 mm) organisms collected using ARMS deployed across six regions with different environmental conditions (3 sites × 3 replicates per region): Baltic, Western Mediterranean, Adriatic, Black and Red Seas, and the Bay of Biscay. A total of 27,473 Amplicon Sequence Variants (ASVs) were observed ranging from 1,404 in the Black Sea to 9,958 in the Red Sea. No ASVs were shared among all regions. The highest number of shared ASVs was between the Western Mediterranean and the Adriatic Sea (116) and Bay of Biscay (115). Relatively high numbers of ASVs (103), mostly associated with the genus Amphibalanus, were also shared between the lower salinity seas (Baltic and Black Seas). We found that compositional differences in spatial patterns of rocky-shore benthos are determined slightly more by dispersal limitation than environmental filtering. Dispersal limitation was similar between sessile and mobile groups, while the sessile group had a larger environmental niche | 4883

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Section: F I G U R Esupporting

confidence: 86%

Pan‐regional marine benthic cryptobiome biodiversity patterns revealed by metabarcoding Autonomous Reef Monitoring Structures

et al. 2020

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“…Marine litter windrows in the study area were mainly composed by plastic (96% in terms of items; 76.40% in weight), in agreement with worldwide ranges reported (UNEP and Grid-Arendal, 2016). The Bay of Biscay is an internationally important region for fishing, aquaculture and shipping (Borja et al, 2019) and our results point at these sea-based activities as the main source of FML (35% of the litter by number and 55% by weight). In the North-East Atlantic and other European Seas, the contribution of land-based sources is prevalent (Reker et al, 2015).…”

Section: Sources Of Litter In the Coastal Waters Of Se Bay Of Biscaysupporting

confidence: 56%

Litter Windrows in the South-East Coast of the Bay of Biscay: An Ocean Process Enabling Effective Active Fishing for Litter

et al. 2020

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Large scale convergence regions of floating marine litter are commonly observed in semi-enclosed seas as the Bay of Biscay. However, clean-up activities on such accumulation regions are limited by the spread of the large-size floating litter on the sea surface. Data gathered by a small-scale fishing vessel devoted to active fishing for floating litter activities during the spring and summer of 2018 reveals that the linear streaks of high concentration of floating litter (so-called litter "windrows") are common accumulation structures in the south-east coast of the Bay of Biscay. The random search of litter windrows for their collection through surface tows of macro-nets was proved to be an effective action for floating litter mitigation. A total of 196 tows collected 16.2 tons of floating marine litter in 68 working days. Most of the litter windrows were around 1 km length and, on average, accumulated 77.75 kg of floating marine litter. Fishing, shipping and aquaculture sectors were the source of 35% of the 4,130 litter items analyzed (55% in weight of the sourced items), and plastic was the most common type of material (96% in terms of items). A better understanding of the phenomenon of the litter windrows, capable to guide clean-up efforts in space and time, would provide a considerable improvement in the efficiency of mitigation actions to reduce the marine litter pollution. The observations of litter windrows in the coastal area of the south-east of the Bay of Biscay demonstrate the key role of submesoscale processes in the distribution of FML. The present work provides a thorough description of floating litter windrows in nature, which it was non-existent to date. The results are the kind of proof necessary to boost the research addressed on the submesoscale aggregations of FML. Coupling litter windrows observations with remote-sensing technology and high-resolution modeling techniques offer great opportunities for the mitigation actions against marine litter.

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“…In the present study, mean flow rate measured increased in the downstream direction (from St1 – St5). The highest mean flow rate measured along the study area was 125.75 m 3 /s, this was lower than the mean flow rate of the rivers in the Cantabrian shelf in Northern Greenland with a mean flow rate of 400 m 3 /s because of the influence of runoff from mountain ranges ( Borja et al., 2019 ). From 1986 – 2009, mean flow rate of Gumara River in the Blue Nile Basin in Ethiopia was 400 m 3 /s in the summer ( Mamo et al., 2019 ), a much higher value than that measured in the studied creek.…”

Section: Discussionmentioning

confidence: 72%

Ecological and human health risk assessment of total petroleum hydrocarbons in surface water and sediment from Woji Creek in the Niger Delta Estuary of Rivers State, Nigeria

Ihunwo

Onyema

Wekpe

et al. 2021

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This study was designed to assess total petroleum hydrocarbon (THP) concentrations in the surface water and sediment sampled from Woji Creek and to assess potential ecological and human health risk due to petroleum hydrocarbons along the creek. Physicochemical parameters [pH, temperature (T), electrical conductivity (EC), dissolved oxygen (DO), total dissolved solids (TDS)] were in-situ measured from sediment and surface water; hydrological parameters (width, depth and volume) were used to calculate the flow rate (discharge) at different stations of the creek. Trend of TPH in the surface water samples along the creek were as follows: St4 (3.639 AE 1.121 mg/L) > St3 (2.449 AE 0.623 mg/L) > St1 (1.457 AE 0.244 mg/L) > St2 (1.069 AE 0.228 mg/L) > St5 (1.010 AE 0.120 mg/L) Trend of TPH concentration across the creek was as follows: St1 -8.758 AE 0.697 mg/kg > St3 -7.675 AE 0.541 mg/kg > St5 -5.515 AE 0.401 mg/kg > St4 -5.075 AE 0.363 mg/kg > St2 -3.162 AE 0.307 mg/kg. Diagnostic indices indicate that the hydrocarbon in the creek was from petrogenic source. Estimation of ecological risk indicated risk in the surface water but not in the sediment. However, human health risk assessment indicated no risk due to human ingestion of the sediment or surface water.

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The Bay of Biscay

Cited by 22 publications

References 164 publications

Pan‐regional marine benthic cryptobiome biodiversity patterns revealed by metabarcoding Autonomous Reef Monitoring Structures

Pan‐regional marine benthic cryptobiome biodiversity patterns revealed by metabarcoding Autonomous Reef Monitoring Structures

Litter Windrows in the South-East Coast of the Bay of Biscay: An Ocean Process Enabling Effective Active Fishing for Litter

Ecological and human health risk assessment of total petroleum hydrocarbons in surface water and sediment from Woji Creek in the Niger Delta Estuary of Rivers State, Nigeria

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