Опубликована: Янв. 1, 2023
Язык: Английский
Biology, Год журнала: 2024, Номер 13(6), С. 389 - 389
Опубликована: Май 28, 2024
The response of benthic habitats and organisms to bottom-contact fishing intensity is investigated in marine protected areas (MPAs) the German EEZ North Baltic Seas. We examined current state macrofauna biodiversity 2020–2022. Comparative analysis for (in- epifauna) inhabiting nine Natura 2000 MPAs constitutes a baseline assess effects exclusion future. Aspects spatial temporal variability are briefly summarized discussed. provide species list each region, including 481 taxa, which 79 were found both regions, 183 only Sea, 219 Sea. Sea dataset surprisingly included higher numbers taxa revealed more Red List species. share major taxonomic groups (polychaetes, bivalves amphipods) richness showed peculiar commonalities between two regions. In multivariate community structure significantly within-similarity stronger separation considered compared MPAs. Salinity, temperature sediment fractions sand responsible over 60% variation occurrence data. mud fraction most important drivers and, together with other environmental drivers, 53% variation. This study identifies aspects that may be used (causes of) future changes.
Язык: Английский
Процитировано
1
Journal of Sea Research, Год журнала: 2024, Номер 199, С. 102498 - 102498
Опубликована: Апрель 10, 2024
The number of offshore artificial structures in the North Sea is continuously increasing. Apart from that have been added to marine environment accidentally (e.g., shipwrecks), are also deliberately developed meet increasing needs for renewable energy. These provide habitat fouling organisms. communities vary abundance and composition based on location, depth, structure age. Most species filter particles water column, changing phytoplankton production affecting larval settlement success, while releasing ammonium can fuel growth as well (pseudo)faeces enriches seabed, local biogeochemical cycles. Our study used in-situ incubation chambers investigate oxygen, nitrogen, phosphate fluxes associated with organisms improve understanding these changes Divers (domes) shipwrecks southern where over >55 years mature established. A series samples was collected each dome during deployment measure change concentration ammonium, nitrite, nitrate, phosphate. All fauna enclosed domes after measurement further analysis. full macrofauna dataset contained 65 unique 4 (25 50 per sample). Abundance ranged 2187 59,427 individuals sample (683 cm2). On average, a decrease oxygen 126 μmol/g ash free dry weight/h found. sequential showed clear nutrient time all incubations. largest were observed high community abundances biomass. Ammonium, always increased, 1.5-to-5-fold increases start end incubation, nitrate both an efflux influx measured. Oxygen decreased Mean (all μmol m2 hour standard error) significant (945 ± 300), nitrite (80 30), (61 8), (−11,794 3289), but not (−206 122). Per gram AFDW, only (12.7 3.5) (−126 48) had differed significantly zero. Compared average seabed (sandy bottom) demand previous studies, high. findings resembled those temperate biogenic reef studies. Further data collection across larger spatial temporal scale needed fully understand effects environments.
Язык: Английский
Процитировано
0
Опубликована: Янв. 1, 2024
With the rapidly increasing intensity of human-activities in marine realm, it has become an urgency to gain better understanding impacts human-induced disturbances on species. Marine mammals and birds are vulnerable such disturbances, making them a priority for research conservation efforts. Unfortunately, studying life is inherently difficult due high mobility, combined with dynamic nature environments. This study addresses effects offshore wind farm (OWF) Dutch North Sea habitat use razorbills (Alca torda) common guillemots (Uria aalge). Presenting novel methodology: EPIC "Extensive Periphery as Impact-Control", consisting survey design that uses OWFs surroundings all directions control space, complemented by statistical approach model animals' distribution patterns space time, used quantify extend displacement loss. Bird densities modelled using spatially explicit Bayesian simulation compare potential impact area 1000 similarly sized areas from peripheral space. Strong was found both guillemots, within OWF footprint but also its surroundings. Razorbill guillemot were respectively 40.2% 70.1% lower remained considerably than up 2 km 10 distance, respectively. The presented methodological holds great future studies local top predators.
Язык: Английский
Процитировано
0
IFIP advances in information and communication technology, Год журнала: 2024, Номер unknown, С. 3 - 15
Опубликована: Янв. 1, 2024
Язык: Английский
Процитировано
0
Ecological Indicators, Год журнала: 2024, Номер 167, С. 112613 - 112613
Опубликована: Сен. 18, 2024
Язык: Английский
Процитировано
0
Marine Policy, Год журнала: 2024, Номер 170, С. 106413 - 106413
Опубликована: Сен. 30, 2024
Язык: Английский
Процитировано
0
The International Journal of Life Cycle Assessment, Год журнала: 2024, Номер unknown
Опубликована: Дек. 10, 2024
Life cycle assessment (LCA) is a robust approach to estimate the environmental impacts of an offshore wind farm (OWF). However, methodological hurdles remain, particularly lack appropriate indicators assess ecosystem during OWF construction and operation scarcity marine ecological data. To address indicators, this article focuses on developing impact indicator specifically related bird collision with OWFs. collisions OWFs, we adapted life originally developed for onshore farms. This combines spatial data species distribution vulnerability technical characteristics (number turbines, power production, rotor diameter). The results model map seabird at worldwide introduce biodiversity characterization factor into LCA. are expressed as potentially disappeared fraction (PDF) annually per gigawatt-hour (GWh) vary between 2.0e−15 1.69e−13 PDF.year/GWh. It correlates 1344 locations 226 operational 181 planned differentiation factors highlights variability worldwide. Such mapping crucial identifying areas varying levels risk, which essential strategic planning Projections indicate higher potential risks in Asia than Europe, future expansion new regions expected increase risks. In addition, main affecting intensity were statistically identified. Therefore, mitigate collisions, it focus three key aspects: fewer smaller rotors, greater distance from shoreline. LC-IMPACT method was employed compare two projects France, those resulting climate change. Over lifetime these quantified around 2.0e−7 PDF, where effects attributed change will be six times higher. development first step towards integrating LCA framework. also demonstrates how can inform context renewable energy development.
Язык: Английский
Процитировано
0
Environmental Science & Technology, Год журнала: 2024, Номер unknown
Опубликована: Дек. 19, 2024
Offshore wind energy (OWE) represents a key technology for achieving sustainable transition. However, offshore farms (OWFs) can impact the environment via installation, operation, maintenance, and decommissioning activities together with raw materials required their manufacturing. This study assesses material carbon footprint of potential OWF locations in North Sea various possible future developments. We find that better sitings could save up to ∼0.11 kg (∼65%) steel, ∼ 0.16 g (∼31%) copper, ∼6.44 (∼26%) embodied CO
Язык: Английский
Процитировано
0
Ecological Informatics, Год журнала: 2024, Номер unknown, С. 102981 - 102981
Опубликована: Дек. 1, 2024
Язык: Английский
Процитировано
0
Journal of Marine Science and Engineering, Год журнала: 2023, Номер 11(10), С. 1988 - 1988
Опубликована: Окт. 14, 2023
Owing to the constant wind generated by vast ocean, energy production from offshore farms (OWFs) plays an important role in expansion of renewable energy. However, areas close large are often left unutilized, and aquaculture farmers find it difficult efficiently utilize these unoccupied spaces due limited information showing feasibility utilization OWFs as potential scallop culture sites. To analyze whether two species Zhikong (Chlamys farreri) bay (Argopecten irradians) can be grown at Gochang Buan, Jeollabuk-do, Republic Korea, growth characteristics were analyzed compared with those Tongyeong Megacosm Test Station. The results clearly showed that scallops OWF was significantly lower respect shell lengths, height, width, weight, megacosm station. still consistent parallel test Yet, there a species-specific mortality rate between In addition, our suggest temperature may key determinant C. farreri A. irradians. Overall, this study contributes establishing foundation for stable continuous farming marine bivalves (e.g., clams, oysters, mussels, scallops) areas.
Язык: Английский
Процитировано
1