Marine environmental research最新文献_第2页

Seascape effects on the nursery function of macroalgal habitats. 海景对大型藻类栖息地育苗功能的影响。

IF 3 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Marine environmental research

Pub Date : 2024-09-24 DOI: 10.1016/j.marenvres.2024.106767

Molly Moustaka, William D Robbins, Shaun K Wilson, Corey Wakefield, Michael Vw Cuttler, Michael J O'Leary, Richard D Evans

Understanding how seascape configuration influences nursery function is important for spatial management and conservation of essential habitats. Here, we examine how local habitat, seascape, and environmental factors influence demographic metrics of juvenile Lethrinus punctulatus and assess spatial variation in macroalgae nursery function. We quantified abundance, biomass, and productivity of juvenile L. punctulatus over three years and estimated size-at-age and condition from collected fish. Abundance, biomass, productivity, and size-at-age exhibited significant spatial variation, although each pattern was best explained by different factors. Lethrinus punctulatus were most abundant in macroalgae-rich seascapes, whereas biomass and productivity peaked where macroalgal cover and water temperatures were high. Conversely, fish exhibited the greatest average daily growth at sites near coral reefs. Processes contributing to spatial variation in size-at-age occur prior to fish reaching ∼5 cm in length and may be due to differences in resource availability, size at settlement, or size-selective mortality. Our findings suggest habitat and resource availability constrain L. punctulatus abundance and productivity, while size-at-age is influenced by size-selective mortality and prey quality. Thus, while seascape configuration can affect nursery function, the degree of influence will depend on the processes involved, emphasising the value of considering multiple metrics when identifying nurseries.

了解海景配置如何影响育苗功能对于重要生境的空间管理和保护非常重要。在这里，我们研究了当地栖息地、海景和环境因素是如何影响穿孔鳕幼鱼的繁殖指标，并评估了大型藻类育苗功能的空间变化。我们量化了三年来穿刺鳕幼鱼的丰度、生物量和生产力，并对收集到的鱼的年龄大小和状态进行了估计。丰度、生物量、生产力和龄期大小均表现出显著的空间差异，但每种模式都可以用不同的因素来解释。在大型藻类丰富的海域，穿孔鲈的数量最多，而在大型藻类覆盖率和水温较高的海域，穿孔鲈的生物量和生产力达到峰值。相反，在珊瑚礁附近的地点，鱼类的平均日生长量最大。导致鱼体大小空间差异的过程发生在鱼体长度达到 5 厘米之前，可能是由于资源可用性、定居时的大小或大小选择性死亡率的差异。我们的研究结果表明，栖息地和资源的可获得性限制了L. punctulatus的丰度和生产力，而定居时的大小则受大小选择性死亡和猎物质量的影响。因此，虽然海景配置会影响育苗功能，但影响程度取决于所涉及的过程，这强调了在确定育苗场时考虑多种指标的价值。

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引用次数: 0

Standing at water edges: Ecohydrological interactions between coastal groundwater discharge and intertidal community dynamics 站在水边：沿海地下水排放与潮间带群落动态之间的生态水文相互作用

IF 3 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Marine environmental research

Pub Date : 2024-09-21 DOI: 10.1016/j.marenvres.2024.106762

The intertidal zone on rocky shores is of key ecological importance because it supports high biodiversity, provides critical ecosystem services such as nurseries and refuges, and facilitates complex species interactions in the transition to offshore areas. Important local shaping factors such as groundwater discharge complexify the ecological dynamics of rocky shore communities. The role of submarine groundwater discharge (SGD) in coastal ecosystems is well established. Here, I introduce the Intertidal Groundwater Discharge (IGD) concept to provide a standardised format for distinguishing it from other discharge types. Despite receiving recent increased attention, the importance of direct inland groundwater discharge into intertidal rocky habitats is still scattered. Rocky shores are hallmark habitats long hailed as biodiversity hotspots and key ecological players in adjacent environments; however, consolidated scientific assessments of GW-ecology linkage features and vulnerabilities are lacking. This review is the first to merge fragmented research and identify gaps in knowledge and methodological needs in assessing groundwater-mediated ecological intertidal processes. By filling these gaps, we can gain insights into the vulnerabilities of coastal ecosystems to climate-driven changes related to groundwater availability and design strategies that promote ecological resilience. Rising sea levels, altered precipitation and temperature patterns, and resource exploitation and pollution are increasing threats to the sustainability of rocky shore communities. Here, I integrate hydrogeochemical insights into the broader ecological context of these biodiversity hotspots to develop informed conservation strategies that safeguard the stability and functionality of dynamic and vulnerable habitats.

岩石海岸的潮间带具有重要的生态意义，因为它支持高度的生物多样性，提供关键的生态系统服务（如育苗场和庇护所），并在向近海区域过渡的过程中促进复杂的物种相互作用。当地的重要影响因素（如地下水排放）使岩岸群落的生态动态变得更加复杂。海底地下水排放（SGD）在沿岸生态系统中的作用已得到公认。在这里，我提出了潮间带地下水排泄（IGD）的概念，为区分潮间带地下水排泄与其它排泄类型提供了标准格式。尽管内陆地下水直接排入潮间带岩石栖息地的重要性近来受到越来越多的关注，但这一问题仍很分散。岩石海岸是标志性的栖息地，长期以来一直被誉为生物多样性热点和邻近环境中的关键生态角色；然而，目前还缺乏对全球降水-生态联系特征和脆弱性的综合科学评估。本综述首次合并了零散的研究，并确定了在评估地下水介导的潮间带生态过程方面的知识差距和方法需求。通过填补这些空白，我们可以深入了解沿海生态系统在与地下水可用性相关的气候驱动变化面前的脆弱性，并设计出促进生态恢复能力的策略。海平面上升、降水和温度模式改变、资源开发和污染对岩岸群落的可持续性构成了越来越大的威胁。在此，我将水文地质化学的见解与这些生物多样性热点地区更广泛的生态环境相结合，以制定明智的保护战略，保障充满活力的脆弱栖息地的稳定性和功能性。

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引用次数: 0

Elucidating maternal provisioning for bivalve larvae under ocean acidity extreme events 阐明海洋酸度极端事件下双壳类幼体的母体供给

IF 3 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Marine environmental research

Pub Date : 2024-09-21 DOI: 10.1016/j.marenvres.2024.106752

Ocean acidity extreme (OAX) events, triggered by climate change and anthropogenic activities, are projected to become more intense and frequent in coastal ecosystems, devastating marine bivalves and ecosystems they support. Maternal effects adaptively modulate offspring performance in response to climatic stressors, but whether and to what extent they can confer offspring resistance to OAX remain largely unknown. Here, we investigated impacts of OAX on the parental and larval lipidomes of Manila clams (Ruditapes philippinarum) to add further insights into the energetic nature of maternal effects. A total of 177 significantly down-regulated lipid components (categorized into glycerolipids mainly) were shown in OAX-stressed adults compared with those reared under ambient conditions, and following parental conditioning, larvae also exhibited a further decreasing down-regulation of the glycerolipid components. Triacylglycerols were identified as the predominant composition of glycerolipids and the primary sources of energy for gonadal maturation and larvae development. Yet, larvae spawn from adults exposed to OAX had significantly lower contents of triacylglycerols than those without a prior history of parental conditioning, with the carbon chain length and unsaturation degree of the triacylglycerol components being significantly affected. The latter was also in line with significant increases in the production of triacylglycerol byproducts (diacylglycerols). Overall, our findings suggest that when OAX prevailed during reproductive seasons of Manila clams, maternal effects could be maladaptive by depressing the energetic deposition of larvae, and may not be a potential adaptive modulator of marine bivalves to cope with unprecedented environmental change.

由气候变化和人为活动引发的海洋酸度极端事件（OAX）预计将在沿海生态系统中变得更加剧烈和频繁，对海洋双壳贝类及其支持的生态系统造成破坏。母体效应能适应性地调节后代对气候胁迫的反应，但母体效应是否以及在多大程度上能赋予后代对 OAX 的抵抗力，在很大程度上仍是未知数。在这里，我们研究了 OAX 对马尼拉蛤（Ruditapes philippinarum）亲代和幼虫脂质体的影响，以进一步了解母体效应的能量性质。与在环境条件下饲养的成体相比，OAX 胁迫下的成体中共有 177 种脂质成分（主要分为甘油脂类）明显下调。经鉴定，三酰甘油是甘油脂的主要成分，也是性腺成熟和幼虫发育的主要能量来源。然而，从暴露于 OAX 的成体中产下的幼虫，其三酰甘油的含量明显低于未受亲本调节的幼虫，三酰甘油成分的碳链长度和不饱和程度受到显著影响。后者还与三酰甘油副产品（二酰甘油）产量的显著增加相一致。总之，我们的研究结果表明，当 OAX 在马尼拉蛤繁殖季节盛行时，母体效应可能会抑制幼体的能量沉积，从而产生不良适应性，而且可能不是海洋双壳类应对前所未有的环境变化的潜在适应性调节因子。

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引用次数: 0

How did the floating Ulva prolifera develop into the world's largest green tide? 漂浮的莼菜是如何发展成为世界上最大的绿潮的？

IF 3 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Marine environmental research

Pub Date : 2024-09-21 DOI: 10.1016/j.marenvres.2024.106763

It has been 16 years since the world's largest Ulva bloom appeared in the Yellow Sea. However, it remains unclear how the floating Ulva prolifera developed into the immense green tide within two months especially considering that source control measures have been conducted since 2019. In this study, we investigated the growth mechanism of the floating population by examining the production and regeneration of U. prolifera explants and constructing a growth model. The results showed that U. prolifera explants exhibited rapid regeneration mainly through branches at 15, 20 and 25 °C. Algivore feeding and sporulation (at 20–25 °C) contributed to mass production of explants. The growth of floating population could be attributed to the coupling of mass production and rapid regeneration of explants through multiple cycles, which accounted for the outbreak of floating green tide. This finding presented a novel population growth model to elucidate macroalgal bloom occurrences.

黄海出现世界上最大的莼菜藻华已有 16 年之久。然而，特别是考虑到自 2019 年以来一直在采取源头控制措施，漂浮莼菜是如何在两个月内发展成巨大绿潮的仍不清楚。在本研究中，我们通过检测莼菜外植体的生成和再生，并构建生长模型，研究了漂浮种群的生长机制。结果表明，在15、20和25 °C条件下，U. prolifera外植体主要通过分枝表现出快速再生。食藻动物的摄食和孢子的产生（20-25 °C）促进了外植体的大量生产。漂浮种群的增长可归因于外植体的大量生产和快速再生的多次循环，这也是漂浮绿潮爆发的原因。这一发现提出了一个新的种群增长模型，以阐明大型藻类水华的发生。

引用次数: 0

Temporal variability and ecological risks of pharmaceuticals and cocaine during the Christmas and New Year holidays in a beach area of North Coast of São Paulo, Brazil 巴西圣保罗北海岸海滩地区圣诞节和新年假期期间药物和可卡因的时间变化和生态风险

IF 3 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Marine environmental research

Pub Date : 2024-09-20 DOI: 10.1016/j.marenvres.2024.106759

This study assessed the occurrence and ecological potential risk of nine selected pharmaceuticals in water samples from the Juquehy River. The river flows continuously to Juquehy Beach, known as “the jewel of the north coast" of São Paulo, Brazil. Samples were collected during Christmas and the New Year (period of December 2023–January 2024), in addition to a previous baseline weekend, to compare the loads during “celebratory parties" versus “normal operational conditions." The findings indicated that the “mass gathering" during Christmas and New Year holidays contributed significantly to an increase of the mass load of the nine pharmaceuticals flowing along to the Juquehy River, i.e., caffeine (14.40–633.00 ng/L) > losartan (<LOQ: limit of quantification to 9.43 ng/L) > furosemide (< LOQ to 9.16 ng/L) > diclofenac (0.61–4.55 ng/L) > carbamazepine (< LOQ to 0.73 ng/L) > orphenadrine (< LOQ to 0.11 ng/L) showed higher concentrations during the New Year holiday. Conversely, atenolol (< LOQ to 13.10 ng/L) > benzoylecgonine (0.33–7.23 ng/L) > cocaine (0.12–6.59 ng/L) showed higher concentrations during the Christmas day. The individual ecological risk assessment in the Juquehy River revealed a clear environmental concern for the aquatic ecosystem. The threat to the aquatic biota is significant, with caffeine and losartan presenting a moderate level of risk. Moreover, the mixture ecological risk assessment of nine compounds indicates acute moderate risks to algae, crustaceans, and fishes, as well as chronic low risks to fishes.

本研究评估了 Juquehy 河水样本中九种选定药物的存在情况和生态潜在风险。该河流源源不断地流向被誉为巴西圣保罗 "北海岸明珠 "的 Juquehy 海滩。在圣诞节和新年期间（2023 年 12 月至 2024 年 1 月），除了之前的基线周末外，还采集了样本，以比较 "庆祝派对 "和 "正常运行条件 "期间的负荷量。研究结果表明，圣诞节和新年期间的 "集体聚会 "大大增加了流向 Juquehy 河的九种药物的质量负荷，即咖啡因（14.40-633.00 ng/L）；洛沙坦（LOQ：定量限为 9.43 ng/L）；呋塞米（LOQ：定量限为 9.16 ng/L）；双氯芬酸（0.61-4.55纳克/升）、卡马西平（LOQ为0.73纳克/升）、奥芬那定（LOQ为0.11纳克/升）在元旦假期期间浓度较高。相反，阿替洛尔（LOQ：13.10 ng/L）、苯甲酰可待因（0.33-7.23 ng/L）和可卡因（0.12-6.59 ng/L）在圣诞节期间的浓度较高。对 Juquehy 河进行的个别生态风险评估显示，水生生态系统存在明显的环境问题。咖啡因和洛沙坦对水生生物群的威胁很大，属于中度风险。此外，对九种化合物进行的混合物生态风险评估显示，藻类、甲壳类动物和鱼类面临急性中度风险，鱼类面临慢性低度风险。

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引用次数: 0

Numerical modelling of radionuclide uptake by bluefin tuna along its migration routes in the Mediterranean Sea after a nuclear accident 核事故后蓝鳍金枪鱼沿地中海洄游路线吸收放射性核素的数值模拟

IF 3 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Marine environmental research

Pub Date : 2024-09-20 DOI: 10.1016/j.marenvres.2024.106757

A numerical model which simulates the adsorption of radionuclides by migrating bluefin tuna in the Mediterranean Sea is described, in order to determine the level of contamination of these fish after a hypothetical nuclear accident and thus be able to assess the possible impact on human consumption. A 4–species foodweb model is incorporated into a Lagrangian model describing physical transport (advection, mixing, radioactive decay and interactions of radionuclides with sediments). Tuna is the last trophic level in the foodweb model and the equation providing the temporal evolution of radionuclide concentration in its flesh is solved along the fish trajectories, which were obtained through electronic tagging of fishes. The model was applied to the western Mediterranean, where several worst–case hypothetical accidents were simulated, both from a coastal nuclear power plant and from a vessel. Resulting ¹³⁷Cs concentrations in migrating tuna were similar, or slightly higher, than reported background concentrations in these fishes and well below established safety levels. Maximum calculated concentrations in tuna flesh is in the order of 1 Bq/kg (wet weight). This is due to the rapid movement of the fishes, which spend only limited time over the most contaminated spots.

介绍了模拟地中海洄游蓝鳍金枪鱼对放射性核素吸附的数值模型，以确定假定核事故发生后这些鱼类的污染程度，从而能够评估对人类消费可能产生的影响。在描述物理迁移（平流、混合、放射性衰变以及放射性核素与沉积物的相互作用）的拉格朗日模型中纳入了 4 种食物网模型。金枪鱼是食物网模型中的最后一个营养级，其鱼肉中放射性核素浓度的时间演变方程是沿着鱼的运动轨迹求解的，这些轨迹是通过鱼的电子标签获得的。该模型应用于地中海西部，模拟了来自沿海核电厂和船只的几种最坏情况假设事故。结果显示，洄游金枪鱼体内的 137Cs 浓度与报告的这些鱼类体内的本底浓度相似或略高，远低于既定的安全水平。金枪鱼鱼肉中的最大计算浓度约为 1 Bq/kg（湿重）。这是因为金枪鱼的移动速度很快，在污染最严重的地方停留的时间有限。

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引用次数: 0

CSR strategies seasonal cycling: A new mechanism for coexistence among seaweeds CSR 策略季节性循环：海藻共存的新机制

IF 3 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Marine environmental research

Pub Date : 2024-09-20 DOI: 10.1016/j.marenvres.2024.106761

The stable maintenance of high biological diversity remains a major puzzle in biology. We propose a new mechanism involving the cyclical use of Competitive, Stress-tolerant, and Ruderal (CSR) strategies to explain high biodiversity maintenance. This study examines the interactions among three morphs of the cosmopolitan and commercially important seaweed Ulva Linnaeus. We measured biomass productivity, effective quantum yield, carbohydrate concentration, and nutrient competition across all seasons for one year and matched trait value combinations to CSR strategies. Our findings reveal that the Ulva morphs exhibited significant competitive interactions under eutrophic conditions, in a scramble competition dynamic. However, competition did not significantly affect their functional traits under naturally prevalent oligotrophic conditions. Season-by-season analysis revealed that each morph employed temporal niche partitioning by cyclically adopting different CSR strategies, thereby avoiding direct competition. This cyclical strategy, akin to a rock-paper-scissors game, prevents any single strategy from dominating year-round, maintaining the three-morph polymorphism. Our study further highlights the importance of year-long functional trait measurements to encompass seasonal changes in functional responses. Our CSR cycling conceptual model offers new insights useful for monitoring and conservation efforts.

生物多样性的稳定维持仍然是生物学中的一大难题。我们提出了一种新的机制，即周期性地使用竞争（Competitive）、耐压（Stress-tolerant）和驯化（Ruderal）（CSR）策略来解释高生物多样性的维持。本研究考察了具有重要商业价值的世界性海藻林奈莼（Ulva Linnaeus）的三种形态之间的相互作用。我们测量了一年中所有季节的生物量生产率、有效量子产量、碳水化合物浓度和营养竞争，并将性状值组合与CSR策略相匹配。我们的研究结果表明，在富营养化条件下，莼菜的形态表现出显著的竞争交互作用，呈现出争夺竞争的态势。然而，在自然普遍的寡营养条件下，竞争对它们的功能性状没有明显影响。逐季分析表明，每种形态通过周期性地采用不同的 CSR 策略，从而避免直接竞争，实现了时间生态位分区。这种类似于 "剪刀石头布 "游戏的周期性策略防止了任何单一策略全年占据主导地位，从而维持了三形态的多态性。我们的研究进一步强调了全年功能特征测量的重要性，以涵盖功能反应的季节性变化。我们的 CSR 循环概念模型为监测和保护工作提供了新的见解。

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引用次数: 0

Corrigendum to "A functional perspective on the factors underpinning biomass-bound carbon stocks in coastal macrophyte communities" [Mar. Environ. Res. 193 (2024) 106289]. 从功能角度看沿海大型植物群落生物量结合碳储量的基础因素》[Mar. Environ. Res. 193 (2024) 106289]更正。

IF 3 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Marine environmental research

Pub Date : 2024-09-20 DOI: 10.1016/j.marenvres.2024.106748

Roel Lammerant, Alf Norkko, Camilla Gustafsson

引用次数: 0

Physiological and transcriptomic analyses to determine the responses of the harmful algae Akashiwo sanguinea to phosphorus utilization 通过生理学和转录组分析确定有害藻类 Akashiwo sanguinea 对磷利用的反应

IF 3 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Marine environmental research

Pub Date : 2024-09-19 DOI: 10.1016/j.marenvres.2024.106753

Phosphorus (P) is an essential nutrient driving algal growth in aquatic ecosystems. Dissolved inorganic and organic P (DIP and DOP) are the main components in the marine P pools and are closely related to harmful algal blooms. The dinoflagellate Akashiwo sanguinea is a cosmopolitan species which frequently causes dense blooms in estuaries and coasts worldwide, while the availability of P to A. sanguinea still remain unclear. Herein, the physiological and transcriptomic responses of A. sanguinea grown under P-deficient, DIP-replete and DOP-replete conditions were compared. P-deficient adversely suppressed the growth and photosynthesis of A. sanguinea, while genes associated with P transport, DOP utilization, sulfolipid synthesis, and energy production, were markedly elevated. Three forms of DOP, namely, glucose-6-phosphate (G-6-P), adenosine 5-triphosphate (ATP), and β-Glycerol phosphate (SG-P), supported A. sanguinea growth as efficiently as DIP (NaH₂PO₄), and no significant difference was observed in biochemical compositions and photosynthesis of A. sanguinea between the DIP and DOP treatments. While the genes related to P transporter were markedly suppressed in DOP groups compared with the DIP group. Our results indicated that A. sanguinea is a good growth strategist under P-deficient/replete conditions, and this species had evolved a comprehensive strategy to cope with P deficiency, which might be a crucial factor driving bloom formation in a low inorganic P environment.

磷（P）是水生生态系统中驱动藻类生长的重要营养元素。溶解无机磷和有机磷（DIP 和 DOP）是海洋磷库的主要成分，与有害藻类的大量繁殖密切相关。赤潮甲藻（Akashiwo sanguinea）是一种世界性物种，经常在世界各地的河口和海岸引起密集的藻华，而赤潮甲藻对P的可获得性仍不清楚。本文比较了赤潮在缺磷、富含 DIP 和富含 DOP 条件下的生理反应和转录组反应。结果表明，缺P抑制了番荔枝的生长和光合作用，而与P转运、DOP利用、硫脂合成和能量产生相关的基因则明显升高。三种形式的 DOP（即葡萄糖-6-磷酸（G-6-P）、腺苷-5-三磷酸（ATP）和β-甘油磷酸（SG-P））与 DIP（NaH2PO4）一样有效地支持番木瓜的生长，且 DIP 和 DOP 处理之间番木瓜的生化组成和光合作用无显著差异。与DIP组相比，DOP组与P转运体相关的基因明显受到抑制。我们的研究结果表明，矢车菊在缺磷/缺钾条件下具有良好的生长策略，该物种已进化出应对缺磷的综合策略，这可能是在低无机磷环境中形成开花的关键因素。

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引用次数: 0

Assessment of potentially toxic element contamination in commercially harvested invertebrates from the Beibu Gulf, China 中国北部湾商业捕捞无脊椎动物潜在有毒元素污染评估

IF 3 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Marine environmental research

Pub Date : 2024-09-18 DOI: 10.1016/j.marenvres.2024.106744

Marine pollutants, especially potentially toxic elements (PTEs), increasingly threaten the ecological environment and fishery resources of the Beibu Gulf due to their bioaccumulative nature, toxicity, and persistence. However, the occurrences of multiple PTEs in marine invertebrates within this region remains unclear. Hence, a total of 18 species of commercially harvested invertebrates (shrimp, crab, cephalopod, shellfish, and sea cucumber) were collected from the Beibu Gulf, and the concentrations of nine important PTEs (As, Cd, Cr, Cu, Hg, Mn, Ni, Pb, and Zn) were examined. Subsequent stable isotope analysis for δ¹³C and δ¹⁵N facilitated investigations into biomagnification and human health risk assessment. The results showed that, except for As, the concentrations of the PTEs in the invertebrates were below the national safety limits. Furthermore, significant positive correlations were found between trophic levels (TLs) and log-transformed concentrations of As (P < 0.001, R² = 0.20) and Cr (P < 0.001, R² = 0.13), indicating biomagnification of these two metals across trophic positions among species. Finally, the human health risk assessment revealed that the consumption of cephalopod, shellfish, and sea cucumber poses a higher risk of adverse effects compared to shrimp and crab.

海洋污染物，尤其是潜在有毒元素（PTEs），由于其生物累积性、毒性和持久性，日益威胁着北部湾的生态环境和渔业资源。然而，该地区海洋无脊椎动物体内多种 PTEs 的存在情况仍不清楚。因此，我们从北部湾收集了 18 种商业捕捞的无脊椎动物（虾、蟹、头足类、贝类和海参），并检测了 9 种重要 PTE（砷、镉、铬、铜、汞、锰、镍、铅和锌）的浓度。随后进行的 δ13C 和 δ15N 稳定同位素分析有助于研究生物放大作用和人类健康风险评估。结果表明，除 As 外，无脊椎动物体内的 PTEs 浓度均低于国家安全限值。此外，营养级（TLs）与砷（P < 0.001，R2 = 0.20）和铬（P < 0.001，R2 = 0.13）的对数变换浓度之间存在明显的正相关关系，表明这两种金属在不同物种的营养级之间存在生物放大作用。最后，人类健康风险评估显示，与虾和蟹相比，食用头足类、贝类和海参造成不良影响的风险更高。

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引用次数: 0