Marine environmental research最新文献

{"title":"Harpagifer bispinis, but not Patagonotothen tessellata, appears robust to interactive effects of ocean warming and acidification in southern Patagonia","authors":"Eloísa M. Giménez ,&nbsp;Fabián A. Vanella ,&nbsp;Laura I. Wolinski ,&nbsp;Rodrigo Torres ,&nbsp;María E. Lattuca","doi":"10.1016/j.marenvres.2025.107123","DOIUrl":"10.1016/j.marenvres.2025.107123","url":null,"abstract":"<div><div>Ocean warming and acidification challenge marine ectotherms with rapid, multiple and simultaneous environmental changes. As knowledge of these impacts on fish from the sub-Antarctic is scarce, this study seeks to explore the combined effects of warming and acidification on the thermal and metabolic responses of <em>Patagonotothen tessellata</em> and <em>Harpagifer bispinis</em>, two sympatric notothenioid fish from the Beagle Channel. Juveniles were exposed to present-day and near-future summer temperatures (∼10 and 13 °C) and <em>p</em>CO₂ levels (∼500 and 1300 μatm) in a full factorial design. Their critical thermal minimum/maximum (CTmin/CTmax) were assessed and their partial thermal tolerance polygons were estimated. Oxygen consumption rates allowed us to calculate fish' aerobic scope (AS) as the difference between the standard and maximum metabolic rates (SMR and MMR). The CTmin of both species were affected by temperature, <em>p</em>CO₂ level and their interaction, while the CTmax of <em>P. tessellata</em> was affected by both factors and that of <em>H. bispinis,</em> only by temperature. The partial thermal tolerance polygon of <em>P. tessellata</em> significantly decreased with future <em>p</em>CO₂ levels, while no changes were observed for <em>H. bispinis</em>. In <em>P. tessellata</em>, SMR and MMR were affected by temperature and <em>p</em>CO₂ levels and the AS by their interaction. Conversely, <em>H. bispinis</em> showed no differences in SMR, MMR and AS under different conditions. The increase in SMR and decrease in AS of <em>P. tessellata</em> with future temperatures and <em>p</em>CO₂ levels may explain the changes in its thermal tolerance, while for <em>H. bispinis</em>, either the species has a greater capacity to adapt its metabolic response to warming and acidification, or different physiological processes are responsible for the observed changes in its thermal tolerance. Overall, present information could be a valuable tool for forecasting shifts in habitat suitability across the distribution range of both species and other similar fish in the context of climate change.</div></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":"208 ","pages":"Article 107123"},"PeriodicalIF":3.0,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Decadal long sub-lethal temperature increases alter the production of non-structural carbohydrates in Zostera muelleri","authors":"Tom Moir ,&nbsp;Megan J. Huggett ,&nbsp;Timothy Kirkman ,&nbsp;Timothy M. Smith ,&nbsp;Troy F. Gaston","doi":"10.1016/j.marenvres.2025.107124","DOIUrl":"10.1016/j.marenvres.2025.107124","url":null,"abstract":"<div><div>Globally, seagrass ecosystems are affected by a variety of natural and anthropogenic stressors under a warming climate. Understanding how organisms cope with current stressors, when presented with future warming scenarios, is crucial for predicting ecosystem responses. Here, we use thermal plumes in an east Australian estuary as a proxy for future climate change scenarios to investigate the effects of <em>in situ</em> warming on <em>Zostera muelleri</em> resilience, measured through non-structural carbohydrate (NSC) concentration in the rhizome. NSC's are stored in the rhizome during periods of high photosynthetic efficiency, and are metabolised when photosynthesis is not possible, such as during a storm surge or other stress event. Thermally affected sites in this system experience temperatures 1–6 °C above ambient conditions, with greatest differences in winter months. Despite temperatures frequently exceeding the upper thermal limit (32 °C) for <em>Z. muelleri</em>, we found no significant differences in total NSC concentrations between ambient (80–210 mg g⁻¹) and thermally affected populations (80–170 mg g⁻¹), with only a difference in starch concentration being higher at ambient sites than thermally affected sites during October. A notable shift in NSC composition occurred in July–August 2022 after heavy rainfall in the area, with starch decreasing from 120 to 160 mg g⁻¹ to 20–30 mg g⁻¹, coinciding with increases in fructose and glucose. Thermally affected sites exhibited dampened seasonality in energy reserves suggesting that these populations have adjusted their energy management strategy in response to extended favorable conditions, effectively reducing the amplitude of seasonal NSC fluctuations. These findings support previous findings that larger changes in carbohydrates are driven by temporal patterns and local weather events. They also suggest that <em>Z. muelleri</em> exhibits resilience to elevated temperatures through maintaining comparable total NSC reserves, but with altered temporal patterns of accumulation that likely reflect adaptation to an effectively extended growing season under warming conditions.</div></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":"208 ","pages":"Article 107124"},"PeriodicalIF":3.0,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pollution in marine bivalves: The immunosuppressive effects of microplastics on Anadara granosa","authors":"Siyi Huang ,&nbsp;Hejian Li ,&nbsp;Lixue Zhao ,&nbsp;Yu Han ,&nbsp;Hongxing Liu ,&nbsp;Shanjie Zha ,&nbsp;Yongbo Bao","doi":"10.1016/j.marenvres.2025.107107","DOIUrl":"10.1016/j.marenvres.2025.107107","url":null,"abstract":"<div><div>Microplastics (MPs), as emerging marine pollutants, pose a significant threat to marine organisms and ecosystems. This study investigates the effects of 7-day MPs exposure on the immune response of the blood clam (<em>Anadara granosa</em>), a commercially valuable marine bivalve known for its filter-feeding and sedentary lifestyle, which renders it particularly vulnerable to pollutants. This study analyzed the impact of various concentrations (0, 0.1, 1, and 10 mg/L) of polystyrene MPs (PS MPs) on the immune response of blood clam hemocytes, focusing on the mechanisms of immunotoxicity, including changes in hemoglobin content, reactive oxygen species levels, cell viability, and the expression of immune-related genes. The findings indicate that a one-week exposure to PS MPs significantly compromised the immune response of blood clam hemocytes, exhibiting a pronounced dose-dependent relationship. There was a significant reduction in the total hemocyte count, concentration of hemoglobin, lysozyme content, and activity following PS MPs exposure. Additionally, the levels of calcium ions, the activities of acid and alkaline phosphatases varied with the concentration of PS MPs, suggesting that increased PS MPs concentrations suppress the immune activity of blood clams. This suppression could diminish their capacity to fend off external aggressions and heighten the risk of disease outbreaks. The study provides novel insights into the impact of PS MPs on the immune response of marine bivalves and lays the groundwork for further ecotoxicological research.</div></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":"208 ","pages":"Article 107107"},"PeriodicalIF":3.0,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rapid surveying of benthopelagic ecosystems with a towed mini-ROV","authors":"V. Raoult ,&nbsp;K. McSpadden ,&nbsp;T.F. Gaston ,&nbsp;J.Y.Q. Li ,&nbsp;J.E. Williamson","doi":"10.1016/j.marenvres.2025.107122","DOIUrl":"10.1016/j.marenvres.2025.107122","url":null,"abstract":"<div><div>Surveying benthic communities has historically relied on snorkel or SCUBA, but these methods are labour-intensive, inefficient (∼1000 m² per day covered for one dive pair) and depth-limited (&lt;30 m depth). Here we detail a remote method using a towed mini-ROV that combines the depth capabilities and endurance of towed cameras with the flexibility and manoeuvrability of SCUBA and snorkel. Towed mini-ROV allows over 10 km of transects or 38,000 m² of benthic surveys per day, produces data that can be geo-referenced, allows measurement of organisms using orthomosaics, can include physical data such as depth and temperature, and can operate from depths of 2–60 m without any gear changes. This setup requires only modest modifications of readily available equipment, and is relatively low-cost given the time and labour efficiencies gained. We provide some examples of the types of data that can be produced (video, imagery, spatial layer), as well as the sort of coverage that is realistic using real survey data obtained from the Great Barrier Reef, Australia. Results demonstrate this approach could be used on a large scale to rapidly survey benthic environments. It could be further improved by using a more hydrodynamic ROV design, and a more streamline pipeline that integrates data sources. Use of underwater positioning systems could improve spatial parameters, lasers could improve measurement accuracy, and additional cameras could increase spatial coverage, but at the cost of added complexity and hydrodynamic drag.</div></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":"208 ","pages":"Article 107122"},"PeriodicalIF":3.0,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of co-treatment with nano/microplastics and hydroxychloroquine on early development stages of Salmo trutta","authors":"Živilė Jurgelėnė ,&nbsp;Augustas Morkvėnas ,&nbsp;Reda Dzingelevičienė ,&nbsp;Nerijus Dzingelevičius ,&nbsp;Kęstutis Baranauskis ,&nbsp;Danguolė Montvydienė ,&nbsp;Tomasz Kowalkowski ,&nbsp;Saulius Raugelė ,&nbsp;Boguslaw Buszewski ,&nbsp;Vitalijus Karabanovas","doi":"10.1016/j.marenvres.2025.107096","DOIUrl":"10.1016/j.marenvres.2025.107096","url":null,"abstract":"<div><div>As a potential remedy for COVID-19 treatment, hydroxychloroquine (HCQ) attracted considerable scholarly attention early in the pandemic. However, the ecological consequences of HCQ are not well understood, especially regarding their interactions with plastic waste such as nano-and microplastics (PS). This study aimed to investigate colloidal stability, bioaccumulation, and acute toxicity of carboxylate-modified polystyrene-based PS and HCQ, both alone and in combination, to <em>Salmo trutta</em> embryos and larvae. Spectroscopic properties of PS were found to change over time and to be affected by the presence of HCQ in the incubation water of organisms. Confocal microscopy showed that PS and HCQ, both alone and in combination, caused damage to the chorion of the exposed fish embryos. Particles of PS were detected in external tissues of larvae. The impact of the tested substances on fish was found to be dependent on the PS particle size, exposure duration, and the life stage of fish.</div></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":"208 ","pages":"Article 107096"},"PeriodicalIF":3.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The temperate seagrass species Cymodocea nodosa and the associated bacteria co-response to sunscreen pollution","authors":"Marina I. Vilaplana ,&nbsp;Luis G. Egea ,&nbsp;Esther Bautista-Chamizo ,&nbsp;Araceli Rodríguez-Romero ,&nbsp;Rebecca Tollardo ,&nbsp;Fernando G. Brun ,&nbsp;Juan J. Vergara ,&nbsp;Rocío Jiménez-Ramos","doi":"10.1016/j.marenvres.2025.107115","DOIUrl":"10.1016/j.marenvres.2025.107115","url":null,"abstract":"<div><div>Sunscreens are included among the contaminants of emerging concern (CECs) as their production and use have spread over years while damaging aquatic biota. Sunscreens can damage the photosynthetic systems and change the microbiome of seagrasses, triggering alterations in carbon metabolism –including primary production and dissolved organic carbon (DOC) fluxes– and ecological functions. Here, we conducted a 31-day mesocosm experiment exposing <em>Cymodocea nodosa</em> plants to a mixture of commercial sunscreens. Sunscreens produced a significant reduction on net production rates, switching the system from autotrophic to heterotrophic, which was ascribable to an increase in heterotrophic bacteria families (some known to degrade complex substrates) and, more importantly, to a significant reduction of photosynthetic pigments in plants. Moreover, a significant release of DOC at night attributed to exudation from disrupted roots was recorded, which accounted for the observed increase in bacteria abundance and family richness recorded in the phyllosphere. A higher accumulation of starch in rhizomes suggests a certain degree of resistance of this species. However, we observed a trend to reduce some protective bacteria taxa, whereas promoted the growth of other pathogenic ones for seagrasses, along with other taxa related with the consumption of plant-derived polysaccharides and lignin compounds. Therefore, our results indicated that this CEC may reduce the contribution of seagrasses to the blue carbon pool, among others ecosystem services, and suggest a possible prompt of seagrass diseases if stressing conditions are maintained over time.</div></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":"208 ","pages":"Article 107115"},"PeriodicalIF":3.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interannual health status stability of the reef-building coral Montastraea cavernosa in a Southwestern Atlantic marginal reef","authors":"Edson A. Vieira ,&nbsp;Guilherme O. Longo","doi":"10.1016/j.marenvres.2025.107104","DOIUrl":"10.1016/j.marenvres.2025.107104","url":null,"abstract":"<div><div>Severe coral mortality after bleaching is well documented in the Indo-Pacific and Caribbean, but in the marginal Southwestern Atlantic, corals often exhibit lower post-bleaching mortality and high recovery following temperature anomalies. Understanding how these corals respond to environmental fluctuations can provide insights into their resilience against thermal stress. A seven-year assessment of the dominant reef-building coral Montastraea cavernosa was conducted in the oceanic archipelago of Fernando de Noronha, Southwestern Atlantic (3.86°S 32°42W), using a colony-based approach. We quantified healthy and bleached coral areas, colony area covered by algae, colony's border interactions with benthic organisms, and adjacent benthic cover during austral spring and relate eventual patterns with environmental drivers. Between 2013 and 2019, analyses of 43 colonies across three sites (totaling 167 observations) revealed that they largely remained healthy, with over 70 % of the area exhibiting a vivid dark color, and only small bleached areas (less than 1 %), despite a moderate-strong heatwave in 2018–2019. The adjacent algal cover fluctuated and was positively related to more turbid waters (higher sedimentation and organic matter input), but the monitored colonies were more contacted than expected by chance by algal turfs, a benthic group that does not impose a major competitive threat to corals. While it is unclear if corals bleached between sampling periods, the results suggest that reefs dominated by M. cavernosa may resist/recover thermal stress events, differing from the responses observed in the Indo-Pacific and Caribbean, highlighting the importance of including these marginal reefs in global assessments of coral responses to climate change.</div></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":"208 ","pages":"Article 107104"},"PeriodicalIF":3.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transcription of genes involved in bleaching of a coral reef species Acropora downingi (Wallace, 1999) in response to high temperature","authors":"Pegah Javid ,&nbsp;Arash Akbarzadeh ,&nbsp;Seyed Mehdi Alavi ,&nbsp;Naser Farrokhi ,&nbsp;Maryam Soyuf Jahromi ,&nbsp;Siamak Behzadi ,&nbsp;Mohammadreza Bakhtiarizadeh ,&nbsp;Sajjad Pabasteh ,&nbsp;Mohammad Sharif Ranjbar","doi":"10.1016/j.marenvres.2025.107102","DOIUrl":"10.1016/j.marenvres.2025.107102","url":null,"abstract":"<div><div>Anthropogenic-induced global warming poses a significant threat to coral reef ecosystems worldwide. However, certain species within the Persian Gulf exhibit remarkable resilience to elevated temperatures compared to their counterparts in other reef systems. To understand the thermal tolerance in Persian Gulf corals and their molecular responses to extreme warm temperatures, <em>Acropora downingi</em> specimens collected from Larak Island were subjected to a heat shock of 34 ± 1 °C. We evaluated coral coloration, bleaching, and mRNA expression of biomarkers related to heat shock proteins (HSPs) such as Hsp70 and Hsp90, oxidative stress markers like Catalase and manganese superoxide dismutase (Cat and Mn-Sod), anti-apoptotic factors exemplified by B-cell lymphoma 2 (Bcl-2), and calcification-related genes including galaxin (Gal) after 24 h and 48 h of thermal shock exposure. Exposure of <em>A. downingi</em> to a 48-h heat shock at 34 °C resulted in noticeable fading of coral coloration compared to the control group. Despite this, the corals demonstrated resilience and did not undergo complete bleaching. Our findings also revealed significant increase of Hsp70, Hsp90, Cat, Mn-Sod, Bcl-2, and Gal mRNA expression after 24 h of thermal stress. However, after 48 h, transcripts for Hsp90, Cat, and Gal were observed to be decreased. These results suggest the pivotal roles played by genes involved in HSP signaling pathways, oxidative stress responses, anti-apoptosis processes, and calcification processes in the Persian Gulf coral's adaptation to thermal stress and its resistance to bleaching.</div></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":"208 ","pages":"Article 107102"},"PeriodicalIF":3.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Distribution and species richness of seagrass meadows in the Sea of Marmara","authors":"Uğur Karadurmuş ,&nbsp;Mustafa Akkuş ,&nbsp;Mustafa Sarı","doi":"10.1016/j.marenvres.2025.107097","DOIUrl":"10.1016/j.marenvres.2025.107097","url":null,"abstract":"<div><div>Comprehensive data on seagrass distribution and species richness in the Sea of Marmara (SoM) are absent from global seagrass mapping, hindering long-term monitoring and practical protection efforts for these vital meadows. This study aims to assess the species richness, spatial distribution patterns, and fundamental ecological aspects of seagrass meadows in the SoM, which serves as a crucial transition zone between the Black Sea and the Mediterranean Sea. The data set was obtained through a series of underwater surveys conducted between June and September 2024 at 140 surveyed stations, covering a total area of about 0.534 km². Spatial and species-specific surface area (m²), cover percentage (%), and depth limits (m) of seagrass meadows were estimated from underwater records collected along line transects. Seagrass meadows constituted 51.9 % of the area surveyed in the SoM, covering an area of 0.277 km². Results revealed a rich diversity of seagrass species within the SoM, identifying four species: <em>Cymodocea nodosa</em>, <em>Posidonia oceanica</em>, <em>Zostera marina</em>, and <em>Z. noltei</em>. <em>C. nodosa</em> was the most common species, occupying 82.8 % (0.230 km²) of the total surface area. The lower depth limits of seagrasses in the SoM were shallower than in other Mediterranean regions, with <em>P. oceanica</em> at 15.7 m and <em>C. nodosa</em> at 11.1 m. This limitation attributed to reductions in light penetration caused by high primary production and excessive pollution loads in the SoM. In conclusion, this dataset includes the first underwater observation-based mapping and identification of new areas for seagrass species in the SoM, contributing to distribution maps for the Mediterranean basin.</div></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":"208 ","pages":"Article 107097"},"PeriodicalIF":3.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of climate change to the potential habitat distribution of three cephalopod species from offshore of Zhejiang","authors":"Jianxiong Li ,&nbsp;Feng Chen ,&nbsp;Yongdong Zhou ,&nbsp;Hongliang Zhang ,&nbsp;Rijin Jiang ,&nbsp;Wenbin Zhu ,&nbsp;Kai Zhu","doi":"10.1016/j.marenvres.2025.107108","DOIUrl":"10.1016/j.marenvres.2025.107108","url":null,"abstract":"<div><div>Cephalopods are predominantly short-lived marine organisms, and their habitats are more susceptible to the effects of climate change. Modelling and predicting the distribution of potential habitats of cephalopods and their changing habitat spatial patterns under climate change scenarios can provide an essential scientific foundation for cephalopod habitat conservation and fisheries ecosystem management in the context of climate change. The trawl survey data collected along Zhejiang offshore in the spring and autumn of 2017–2023, in conjunction with marine environmental data including sea surface temperature (SST), sea surface salinity (SSS), dissolved oxygen concentration (DO) and chlorophyll-a concentration (CHLA), collected by temperature-salt-depth instrument, were employed to simulate and predict the potential habitat distribution of <em>Uroteuthis duvauceli</em>, <em>Abralia multihamata</em>, and <em>Sepiella maindroni</em> in the four RCP climate scenarios in 2100 by random forest as a species distribution model. The results demonstrated that the Random Forest predictions were accurate and reliable, with an AUC exceeding 0.8 for each group and a standard deviation below 0.05. The main environmental factors affecting the habitat distribution of three cephalopod species are SST and SSS, with an average contribution rate of 0.28 in spring and 0.33 in autumn. The average contribution rate of SSS in spring is 0.32, and in autumn it is 0.29. The response curves demonstrated that the three cephalopod species exhibited varying degrees of response to changes in SST and SSS. During the spring period, the optimal habitat for cephalopods was characterised by SST ranging from 18 °C to 20 °C, and SSS exceeding 28 ‰. In contrast, in autumn, <em>S</em>. <em>maindroni</em> exhibited a preference for warmer water compared to <em>U</em>. <em>duvauceli</em> and <em>A. multihamata</em>. The potential habitat suitability zones of cephalopods under high gas emission scenarios were found to mainly extend to the southern and northern coast of Zhejiang. Among them, the area of the high adapted zone of <em>S</em>. <em>maindroni</em> increased by 352 % in the RCP4.5 scenario, the area of the high adapted zone of <em>U</em>. <em>duvauceli</em> increased by 69 % in the RCP4.5 scenario, and the area of the high adapted zone of <em>A. multihamata</em> increased by 69 % in the RCP8.5 scenario. The centroid changes of the three species of cephalopods were not found to be significant in the high suitability zones of the three cephalopod species in different climatic scenarios. The present study proposes that climate change will result in alterations to the potential habitat of cephalopods offshore Zhejiang, which is a significant consideration for the future conservation and management of cephalopod fisheries.</div></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":"208 ","pages":"Article 107108"},"PeriodicalIF":3.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}