Estuarine Coastal and Shelf Science最新文献_第4页

Impact of the invasive brown alga Rugulopteryx okamurae on the benthic communities in the Northwestern Mediterranean Sea 入侵褐藻 Rugulopteryx okamurae 对地中海西北部底栖生物群落的影响

IF 2.6 3区地球科学 Q1 MARINE & FRESHWATER BIOLOGY

Estuarine Coastal and Shelf Science

Pub Date : 2024-10-30 DOI: 10.1016/j.ecss.2024.109010

Marie Borriglione , Sandrine Ruitton , Florian Boyer , Delphine Thibault , Aurélie Blanfuné , Dorian Guillemain , Marc Verlaque , Charles-François Boudouresque , Thierry Thibaut

Over the centuries, the Mediterranean Sea has been significantly impacted by biological invasions, hosting more than 1000 non-indigenous species. In the early 2000s, the brown alga Rugulopteryx okamurae, native to the northwestern Pacific Ocean, was introduced to the Thau Lagoon (Occitania, France) due to extensive shellfish farming activities. Since 2016, this species has proliferated, completely covering the rocky habitats along the Marseille coasts (Provence, France) and becoming the dominant alga. The impact of R. okamurae on flora and fauna was investigated by comparing rocky benthic assemblages of invaded and non-invaded sites. Results showed a change in the communities, with a significant decrease in species diversity and a homogenization of algal and invertebrate populations in invaded sites. Rugulopteryx okamurae is a habitat transformer species inducing a significant habitat shift. Rugulopteryx okamurae also seems to affect the different algal strata of the benthic community, thus impacting the entire canopy. However, a weak effect of R. okamurae was observed on the functional structure of native algal communities, comparing invaded and non-invaded areas. This lack of structural variation between these zones could be explained by the degradation of habitats within the Calanques National Park, due to decades of intense overgrazing by Sarpa salpa and sea urchins.

But an impact on the ecosystem functioning should not be excluded. It is noteworthy that R. okamurae, a species presumed to prefer colder waters, has shown resistance to successive marine heat waves, allowing it to continue spreading and dominating without impairment.

几个世纪以来，地中海受到生物入侵的严重影响，有 1000 多种非本地物种栖息于此。本世纪初，由于广泛的贝类养殖活动，原产于太平洋西北部的褐藻 Rugulopteryx okamurae 被引入 Thau泻湖（法国奥克西塔尼亚）。自 2016 年以来，该物种大量繁殖，完全覆盖了马赛海岸（法国普罗旺斯）的岩石栖息地，并成为主要藻类。通过比较入侵和未入侵地点的岩石底栖生物群落，研究了 R. okamurae 对动植物群落的影响。结果表明，入侵地点的群落发生了变化，物种多样性显著减少，藻类和无脊椎动物种群趋于单一。Rugulopteryx okamurae是一种生境转换物种，会引起生境的显著变化。黄冠陆蝽似乎还会影响底栖生物群落的不同藻类层，从而影响整个冠层。不过，通过比较入侵区和非入侵区，可以发现褐飞虱对本地藻类群落的功能结构影响较弱。这些区域之间缺乏结构性差异的原因可能是，由于几十年来沙巴藻（Sarpa salpa）和海胆的过度放牧，卡兰克斯国家公园（Calanques National Park）内的栖息地退化了。值得注意的是，奥卡穆拉海胆（R. okamurae）这一被认为喜欢寒冷水域的物种，在连续的海洋热浪中表现出了抵抗力，使其能够继续扩散并占据主导地位而不受影响。

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引用次数: 0

Reaction of two sciaenid species to passing boats: Insights from passive acoustic localisation 两种鲷科鱼类对过往船只的反应：被动声学定位的启示

IF 2.6 3区地球科学 Q1 MARINE & FRESHWATER BIOLOGY

Estuarine Coastal and Shelf Science

Pub Date : 2024-10-30 DOI: 10.1016/j.ecss.2024.109012

André B. Matos , Manuel Vieira , M. Clara P. Amorim , Paulo J. Fonseca

Meagre (Argyrosomus regius) and weakfish (Cynoscion regalis) are two soniferous sciaenid species that use the Tagus estuary (Portugal) to breed. In this highly urbanized environment, fishes must deal with multiple anthropogenic stressors that include high noise levels caused by the intense boat traffic. We investigated how these sciaenids react to ferry boat and small boat passages, by assessing both changes in breeding calling activity with passive acoustic monitoring and escape responses with passive acoustic localisation. We found that meagre reduced calling activity after boat passages, but no such effect was observed in weakfish. Instead, weakfish moved in response to boat passages suggesting an escape response. Meagre also changed positions and dispersion patterns, but movements were more modest. This study uses a cost-effective and non-invasive passive acoustic localisation method to elucidate the behavioural response of soniferous fish to anthropogenic noise for the first time, contributing to our understanding of the way fish react to this stressor. Such knowledge is especially important in contexts where fish are exposed to highly prevalent human-generated noise during the breeding season, such as in busy estuaries and coastal areas.

鲶鱼（Argyrosomus regius）和弱鱼（Cynoscion regalis）是利用塔霍河口（葡萄牙）繁殖的两种声鳞鱼类。在这个高度城市化的环境中，鱼类必须应对多种人为压力，其中包括密集的船只交通造成的高噪音水平。我们通过被动声学监测和被动声学定位来评估繁殖叫声活动的变化，从而研究了这些笛鲷对渡船和小船通过时的反应。我们发现，小船驶过后，蓑鲉的叫声活动会减少，但在弱鱼身上却观察不到这种影响。相反，弱鱼在船只通过时会移动，这表明弱鱼有逃避反应。鲶鱼也会改变位置和分散模式，但移动幅度较小。这项研究首次使用了一种经济有效的非侵入式被动声学定位方法来阐明声鳍鱼类对人为噪声的行为反应，有助于我们了解鱼类对这种压力源的反应方式。这些知识对于鱼类在繁殖季节暴露于人类产生的高频噪声的环境尤为重要，例如在繁忙的河口和沿海地区。

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引用次数: 0

Yucatan shelf’s larval density and distribution of Auxis spp. and Caranx crysos are primarily driven by regional upwelling and seasonality 尤卡坦半岛陆架的 Auxis spp.和 Caranx crysos 幼虫密度和分布主要受区域上升流和季节性的影响

IF 2.6 3区地球科学 Q1 MARINE & FRESHWATER BIOLOGY

Estuarine Coastal and Shelf Science

Pub Date : 2024-10-30 DOI: 10.1016/j.ecss.2024.109011

Gonzalo Daudén-Bengoa , Uriel Ordoñez-López , Sharon Z. Herzka

The extensive Yucatan Shelf (YS) in the southern Gulf of Mexico provides habitat for many marine species and supports important fisheries. A striking feature is the regional upwelling along its eastern margin due to the interaction of the Yucatan Current with the western slope of the Yucatan Channel. Coupled with easterly winds, the upwelled water fertilizes the shelf and contributes to high productivity in an otherwise oligotrophic region. However, an understanding of the role that regional upwelling plays on fish spawning and larval fish distributions is limited. We describe the distribution, frequency of occurrence, and densities of two commercially important neritic species (Auxis spp. and Caranx crysos) with contrasting life histories (different adult habitat, neritic vs. neritic and oceanic, and with spawning peak vs. year around spawner). The relationship between larval density and environmental variables, including upwelling indicators, was examined for three oceanographic cruises that covered the entire YS and which were held during summer through fall (2015, 2016 and 2018). None (Auxis spp.) or very few (C. crysos) larvae were caught during the late fall cruise in November. The highest densities of both taxa were found during the summer cruise in July, consistent with their spawning periods. Both species were mostly distributed beyond the 40 m isobath, and the highest densities were found over the central and eastern shelf. Generalized additive models indicated that Auxis spp. and C. crysos densities were correlated with low chlorophyll a concentration (located in the outer shelf) and a shallower 22.5 °C isotherm (a proxy for upwelling), indicating that regional upwelling was associated with higher larval fish densities.

墨西哥湾南部广阔的尤卡坦大陆架（YS）为许多海洋物种提供了栖息地，并支持着重要的渔业。一个显著特点是，由于尤卡坦洋流与尤卡坦海峡西坡的相互作用，其东缘出现了区域性的上升流。在东风的作用下，上涌的海水为陆架提供肥沃的水源，使这一原本营养不足的地区获得了很高的生产力。然而，人们对区域性上升流对鱼类产卵和幼鱼分布所起作用的了解还很有限。我们描述了两种具有重要商业价值的裸鲤物种（Auxis spp.和 Caranx crysos）的分布、出现频率和密度，它们的生活史截然不同（不同的成鱼栖息地、裸鲤与裸鲤和大洋性、产卵高峰与全年产卵）。在夏季至秋季（2015 年、2016 年和 2018 年）进行的覆盖整个 YS 的三次海洋巡航中，研究了幼体密度与环境变量（包括上升流指标）之间的关系。在 11 月进行的深秋巡航中，没有捕获到幼虫（Auxis spp.）或捕获到极少量幼虫（C. crysos）。这两个类群的最高密度出现在 7 月份的夏季巡航期间，与它们的产卵期一致。这两个物种大多分布在 40 米等深线以外，密度最高的是中部和东部大陆架。广义加和模型显示，Auxis spp.和 C. crysos 的密度与低叶绿素 a 浓度（位于外陆架）和较浅的 22.5 ℃ 等温线（代表上升流）相关，表明区域上升流与较高的幼鱼密度有关。

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引用次数: 0

Quantifying intra-annual changes in abundance and distribution to identify the magnitude and scale of potential mortality events 量化丰度和分布的年内变化，以确定潜在死亡事件的程度和规模

IF 2.6 3区地球科学 Q1 MARINE & FRESHWATER BIOLOGY

Estuarine Coastal and Shelf Science

Pub Date : 2024-10-30 DOI: 10.1016/j.ecss.2024.109009

Johnna Brooks , Jeffrey Buckel , Jie Cao

Characterizing the abundance of fish over both space and time can be important to fisheries management. Spotted seatrout (Cynoscion nebulosus) are a warm-temperate estuarine-dependent species prevalent throughout the U.S. South Atlantic and Gulf of Mexico. In North Carolina and Virginia, they are at the species’ northern distributional extent and are therefore more susceptible to low temperature extremes in winter. In this study, we used a Vector Autoregressive Spatiotemporal model (VAST) to quantify the seasonal variation in the abundance and distribution of spotted seatrout within North Carolina waters and examine its relationship with the severity of cold stun events. We found that seasonal declines in relative abundance between the fall/winter and the following spring/summer periods is significantly correlated with low temperature events (i.e., numbers of days of water temperature below

7 °C

), indicating cold stun events, depending on its scale and severity, have negative impacts on spotted seatrout population. Lastly, changes in the seasonal spatial density of spotted seatrout elucidated the spatial extent and scale of cold stun events. Together, these results corroborate previous findings that winter temperatures below

7 °C

increase natural mortality to the extent that lower abundance is observed at the population level.

描述鱼类在空间和时间上的丰度对渔业管理非常重要。斑点鲷（Cynoscion nebulosus）是一种依赖暖温带河口的鱼类，在美国南大西洋和墨西哥湾十分普遍。在北卡罗来纳州和弗吉尼亚州，它们处于该物种的北部分布范围，因此更容易受到冬季极端低温的影响。在这项研究中，我们使用了矢量自回归时空模型（VAST）来量化北卡罗来纳州水域中斑座鳟数量和分布的季节性变化，并研究其与寒冷眩晕事件严重程度的关系。我们发现，秋冬季与次年春夏季之间相对丰度的季节性下降与低温事件（即水温低于7°C的天数）显著相关，这表明低温眩晕事件（取决于其规模和严重程度）会对斑座鳟种群产生负面影响。最后，斑马鱼季节性空间密度的变化阐明了冷晕事件的空间范围和规模。这些结果共同证实了之前的发现，即冬季温度低于7°C会增加自然死亡率，以至于在种群水平上观察到丰度降低。

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引用次数: 0

Fish distribution shifts due to climate change in the Northeast Atlantic: Using a hierarchical filtering approach on marine-estuarine opportunist species 东北大西洋气候变化导致的鱼类分布变化：在海洋-河口机会物种中使用分层过滤方法

IF 2.6 3区地球科学 Q1 MARINE & FRESHWATER BIOLOGY

Estuarine Coastal and Shelf Science

Pub Date : 2024-10-30 DOI: 10.1016/j.ecss.2024.109013

Anaïs Janc , Chloé Dambrine , Patrick Lambert , Géraldine Lassalle , Mario Lepage , Jérémy Lobry , Maud Pierre , Trond Kristiansen , Momme Butenschön , Henrique N. Cabral

Marine-estuarine opportunist (MEO) species are fish that occur in the continental shelf and use estuaries and/or shallow coastal areas as nurseries. These commercially important resources are facing significant environmental modifications caused by direct and/or indirect anthropogenic climate change effects. In this study, we investigated the directionality and the magnitude of the distribution shifts (i.e., range size, gravity centroids, and margins) in marine environment suitability for six main MEO fish species within the Northeast Atlantic expected for the end of the 21st century. In the framework of this study, we have distinguished ‘sub-boreal’ from ‘sub-tropical’ species. The ‘hierarchical filters’ concept was adopted for modelling the potential species distributions and combined the predictions of i) a bioclimatic model with ii) a habitat model. The bioclimatic model is based on large-scale and time-variant variables while variables of the habitat model are fine-grained and time-invariant. Two Intergovernmental Panel on Climate Change (IPCC) scenarios are tested: an intermediate (SSP2-4.5) and a pessimistic one (SSP5-8.5). We applied this framework using international databases of biodiversity occurrences, ensemble forecasting producing consensual predictions, and innovative indices of distribution shifts. A visible north-westward shift was predicted for all six species in our study area. However, the northward expansion was greater for ‘sub-tropical’ than for ‘sub-boreal’ species due to faster gravity centroid displacement shifts and faster margins shifts. These range shifts may lead to major ecological impacts (e.g., changes in recruitment to estuarine and coastal nurseries, as well as changes in spawning grounds) that may alter populations' connectivity.

海洋-河口机会鱼类（MEO）是指出现在大陆架上，以河口和/或浅海沿岸地区为育苗场的鱼类。这些具有重要商业价值的资源正面临着直接和/或间接人为气候变化影响所造成的重大环境变化。在这项研究中，我们调查了预计 21 世纪末东北大西洋六种主要海洋生态系鱼类的海洋环境适宜性分布变化（即范围大小、重心和边缘）的方向性和幅度。在本研究框架内，我们区分了 "亚寒带 "和 "亚热带 "物种。采用 "分级过滤器 "概念来模拟潜在的物种分布，并将 i) 生物气候模型和 ii) 生境模型的预测结果结合起来。生物气候模型基于大尺度且随时间变化的变量，而生境模型的变量则是细粒度且随时间变化的。我们对政府间气候变化专门委员会（IPCC）的两种情景进行了测试：中间情景（SSP2-4.5）和悲观情景（SSP5-8.5）。我们利用生物多样性出现的国际数据库、产生共识预测的集合预测以及创新的分布变化指数来应用这一框架。根据预测，我们研究区域的所有六个物种都将发生明显的西北迁移。然而，"亚热带 "物种的北移幅度大于 "亚寒带 "物种，这是因为重心移动和边际移动的速度更快。这些分布范围的变化可能会对生态产生重大影响（如河口和沿海育苗场的繁殖变化以及产卵场的变化），从而改变种群的连通性。

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引用次数: 0

Assessing the contribution of super-resolution in satellite derived bathymetry in the Antarctic 评估超分辨率对南极卫星测深的贡献

IF 2.6 3区地球科学 Q1 MARINE & FRESHWATER BIOLOGY

Estuarine Coastal and Shelf Science

Pub Date : 2024-10-29 DOI: 10.1016/j.ecss.2024.109007

Emre Gülher , İlhan Pala , Ugur Alganci

The difficulty of defining the depth of near-shore seas (bathymetry) arises from the limits imposed by traditional ship-based approaches during data collection. Although LiDAR sensors with green lasers have been used to solve some of these problems, they come at a high cost in terms of their footprint and are prone to inaccuracies in turbid water. As shorelines undergo changes due to erosion, wetland loss, hurricane effects, sea-level rise, urban development, and population growth, consistent and accurate bathymetric data become crucial. These data play a significant role in comprehending and managing sensitive interfaces between land and water. Satellite-derived Bathymetry (SDB), which has been described by maritime and remote sensing researchers for over 50 years, emerges as a gap-filler, encompassing bathymetry extraction approaches using active (altimetry) and passive (optics) satellite sensors. In the past decade, advancements in sensor capabilities, computational power, and recognition by the International Hydrographic Organization (IHO) have propelled SDB to unprecedented popularity. This study explores the contribution of super-resolution in SDB for the first time in the shallow water zone of Horseshoe Island, Antarctica. Random forest and extreme gradient boosting machine learning-based regressors were used on Landsat-8 OLI images, which were atmospherically corrected by the ACOLITE algorithm and spatially enhanced twofold via the generative adversarial network for single image super-resolution (SRGAN). The bathymetry predictions with these two machine learning algorithms on SR images were benchmarked against previous studies in the same region and showed admissible results concerning the IHO standards. Furthermore, the results indicate that the bathymetric inversion performance of the spatially enhanced image via SRGAN is superior to the original multispectral image and pan-sharpened image in terms of the metrics observed, namely, root mean square error (RMSE), mean average error (MAE), and coefficient of determination (R²). Comparison between the original and SR image bathymetry inversion for the 0–15 m depth range indicate improvements of up to 0.13 m for RMSE, up to 0.30 m for MAE, and up to 11% for R². These results promise possible effective usage of super-resolution in SDB with satellite images such as Sentinel −2, which do not include a panchromatic band.

确定近岸海域深度（水深测量）的难度来自于数据收集过程中传统船基方法的限制。虽然使用绿色激光的激光雷达传感器解决了其中一些问题，但其占地面积大，成本高，在浑浊的海水中容易出现误差。随着海岸线因侵蚀、湿地丧失、飓风影响、海平面上升、城市发展和人口增长而发生变化，一致而准确的测深数据变得至关重要。这些数据在理解和管理敏感的水陆界面方面发挥着重要作用。卫星水深测量（SDB）已被海洋和遥感研究人员描述了 50 多年，它是一种填补空白的方法，包括使用主动（测高）和被动（光学）卫星传感器的水深测量提取方法。在过去的十年中，传感器能力、计算能力的进步以及国际水文学组织（IHO）的认可推动了 SDB 的空前普及。本研究首次在南极马蹄岛浅水区探索了超分辨率在 SDB 中的贡献。研究在 Landsat-8 OLI 图像上使用了基于随机森林和极端梯度提升机器学习的回归器，这些图像通过 ACOLITE 算法进行了大气校正，并通过用于单幅图像超分辨率的生成对抗网络（SRGAN）进行了两倍空间增强。利用这两种机器学习算法对 SR 图像进行的水深预测与之前在同一地区进行的研究进行了比对，结果显示符合 IHO 标准。此外，研究结果表明，从均方根误差（RMSE）、平均平均误差（MAE）和判定系数（R2）等观测指标来看，通过 SRGAN 空间增强图像的水深反演性能优于原始多光谱图像和平移锐化图像。对 0-15 米深度范围内的原始水深反演和 SR 图像水深反演进行比较后发现，均方根误差（RMSE）最多可改进 0.13 米，平均平均误差（MAE）最多可改进 0.30 米，判定系数（R2）最多可改进 11%。这些结果表明，在卫星图像（如 Sentinel -2 卫星图像，不包括全色波段）的 SDB 中可以有效地使用超分辨率。

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引用次数: 0

Implications of spawning migration patterns of the giant mud crab Scylla serrata (Forskål, 1775) on opportunities for larval dispersal 大泥蟹（Scylla serrata）（Forskål，1775 年）产卵迁移模式对幼虫扩散机会的影响

IF 2.6 3区地球科学 Q1 MARINE & FRESHWATER BIOLOGY

Estuarine Coastal and Shelf Science

Pub Date : 2024-10-29 DOI: 10.1016/j.ecss.2024.109008

William Dantas Charles , Christopher Aiken , Julie Robins , Adam Barnett , Nicole Flint

Connectivity is an essential driver for aquatic species distribution, genetic variability and stock structure. The giant mud crab (Scylla serrata) is a coastal portunid commonly associated with estuaries and mangrove systems. This species has been observed to undertake a seaward spawning migration, as the larval development is known to be more successful under the stable environmental conditions typically found in marine waters. The larvae return to the coastal areas through advection, where they are recruited and enter the estuaries after metamorphosing into the first instar. Here, we used numerical modelling to test hypotheses regarding probabilities of larval settlement of the giant mud crab and the effect of the distance offshore from which females release the eggs. Our scenarios considered the biological characteristics of larvae and oceanographic conditions for six locations for mud crabs along a complex coastline - the Queensland east coast, Australia. The models suggest that all locations tend to self-supply, and to exchange mud crab larvae with other regions, but in different magnitudes. The spawning distance offshore considerably affects larval distribution and settlement. The main drivers for larval advection in areas within the continental shelf are wind patterns and coastal currents, while offshore along the Australian continental slope, the main drivers are ocean currents. Self-recruitment is predominant, although we also observed a significant degree of connectivity between each location and the surrounding coastline. Short spawning migrations benefit self-recruitment in all scenarios, but long offshore migrations favour connectivity among different locations. This source/sink balance seems to depend on the local oceanographic features. Nevertheless, offshore spawning by the giant mud crab has the potential to provide for successful recruitment in a variety of environmental contexts. This study provides novel predictions of the probabilities of larval settlement for mud crab populations considering ocean advection that can be applied to different contexts.

连通性是水生物种分布、遗传变异和种群结构的重要驱动力。大泥蟹（Scylla serrata）是一种常见于河口和红树林系统的沿海梭子蟹。据观察，该物种进行向海产卵洄游，因为众所周知，在海洋水域通常稳定的环境条件下，幼体发育更为成功。幼体通过平流返回沿海地区，在那里被招募，变态为第一龄幼体后进入河口。在这里，我们利用数值模拟来检验有关大泥蟹幼体沉降概率的假设，以及雌蟹离岸产卵距离的影响。我们的方案考虑了幼体的生物学特征和澳大利亚昆士兰东海岸六个地点的海洋条件。模型表明，所有地点都倾向于自给自足，并与其他地区交换泥蟹幼体，但交换的程度不同。离岸产卵距离在很大程度上影响着幼体的分布和定居。风型和沿岸流是大陆架内地区幼体移动的主要驱动力，而沿澳大利亚大陆坡的近海地区，主要驱动力是洋流。虽然我们也观察到每个地点与周围海岸线之间存在着很大程度的联系，但自我招募占主导地位。在所有情况下，短时间的产卵洄游都有利于自我招募，但长时间的离岸洄游则有利于不同地点之间的联系。这种源/汇平衡似乎取决于当地的海洋特征。尽管如此，巨型泥蟹的离岸产卵有可能在各种环境条件下为成功招募提供条件。考虑到海洋平流，本研究对泥蟹种群幼体定居的概率进行了新的预测，并可应用于不同的环境。

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引用次数: 0

Do you want your paper published? – Then referee others! The view from seasoned editors 您想发表论文吗？- 那就给别人做推荐吧！资深编辑的观点

IF 2.6 3区地球科学 Q1 MARINE & FRESHWATER BIOLOGY

Estuarine Coastal and Shelf Science

Pub Date : 2024-10-24 DOI: 10.1016/j.ecss.2024.109006

Angel Borja , Michael Elliott

引用次数: 0

Inspection of ghost crab (Ocypode quadrata) burrows with an articulating borescope: A tool to detect occupancy 用铰接式内窥镜检查幽灵蟹（Ocypode quadrata）的洞穴：检测占用情况的工具

IF 2.6 3区地球科学 Q1 MARINE & FRESHWATER BIOLOGY

Estuarine Coastal and Shelf Science

Pub Date : 2024-10-22 DOI: 10.1016/j.ecss.2024.109004

Trent Robinson

引用次数: 0

Exploring marine zooplankton dynamics through carbon stable isotope signatures in a recently marine submarine volcano 通过近期海洋海底火山中的碳稳定同位素特征探索海洋浮游动物动力学

IF 2.6 3区地球科学 Q1 MARINE & FRESHWATER BIOLOGY

Estuarine Coastal and Shelf Science

Pub Date : 2024-10-21 DOI: 10.1016/j.ecss.2024.109005

Inma Herrera , Eugenio Fraile-Nuez , Enrique González-Ortegón

Submarine emissions of gases from hydrothermal vents alter the surrounding chemical environment, influencing species responses to the resulting environmental gradients. The 2011 underwater eruption of the Tagoro volcano off the coast of El Hierro in the Atlantic Ocean changed the physical and chemical conditions, impacting the distribution of pelagic fauna. Post-eruptive stages from 2013 to 2018 revealed changes in both benthic and pelagic communities, with continuous eruptions further affecting local carbon cycle through shifts in nutrient concentrations and isotopic composition. The lowest δ¹³C values in zooplanktonic primary consumers were found in areas directly influenced by the Tagoro submarine volcano. Although the mixing model results show that phytoplankton is the primary carbon source for copepods, contributing an average of 28.3% of their carbon, magmatic CO₂ and seawater dissolved inorganic carbon each account for approximately 17–18%. The isotopic signatures reveal a gradient of enrichment in copepods, reflecting the influence of inorganic nutrient and gas emissions from the volcano's centre to its periphery within the marine ecosystem. This data is useful for understanding the worldwide significance of environmental stressors such as volcanic eruptions on marine organisms.

热液喷口的海底气体排放会改变周围的化学环境，影响物种对由此产生的环境梯度的反应。2011 年大西洋埃尔希耶罗海岸附近的塔戈罗火山水下喷发改变了物理和化学条件，影响了浮游动物的分布。从 2013 年到 2018 年的爆发后阶段显示了底栖和浮游群落的变化，持续的爆发通过营养浓度和同位素组成的变化进一步影响了当地的碳循环。受塔戈罗海底火山直接影响的地区浮游动物初级消费者的δ13C值最低。尽管混合模型结果显示浮游植物是桡足类的主要碳源，平均占其碳的 28.3%，但岩浆二氧化碳和海水溶解无机碳各占约 17-18%。同位素特征揭示了桡足类的富集梯度，反映了海洋生态系统中从火山中心到外围的无机营养物质和气体排放的影响。这些数据有助于了解火山爆发等环境压力因素对海洋生物的全球影响。

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引用次数: 0