Weizeng Shao , Jiale Chen , Song Hu , Yiqiu Yang , Xingwei Jiang , Wei Shen , Huan Li
{"title":"Influence of sea surface waves on numerical modeling of an oil spill: Revisit of symphony wheel accident","authors":"Weizeng Shao , Jiale Chen , Song Hu , Yiqiu Yang , Xingwei Jiang , Wei Shen , Huan Li","doi":"10.1016/j.seares.2024.102529","DOIUrl":"10.1016/j.seares.2024.102529","url":null,"abstract":"<div><p>The greatest purpose of this study is to analyze the importance of surface waves on the hindcasting of the oil spill through the Symphony wheel accident in the Qingdao coastal waters. During the accident period, a total of four synthetic aperture radar (SAR) images by Gaofen-3 (GF-3) were acquired from 2 to 19 May 2021. The hindcasting of two sea surface dynamics, namely currents and waves, is carried out using a coupled marine numeric model. This model, known as the finite-volume community ocean model-simulating waves nearshore (FVCOM-SWAVE), employs a triangular grid. Simulated significant wave height (SWH) is validated against remotely sensed product by the Haiyang-2B (HY-2B) altimeter on April 2021 yields a root mean square error (RMSE) of 0.38, a correlation coefficient (COR) of 0.78, and a scatter index (SI) of 0.34. Subsequently, Stokes drift estimated by waves are included to hindcasting oil spills using the oil particle-tracing method. The bias of the spatial coverage (SAR minus simulations) of an algorithm called the constant false alarm rate (CFAR) is −73.92 km<sup>2</sup> with Stokes drift, which is significantly less than the 55.45 km<sup>2</sup> coverage without Stokes drift. Moreover, compared with model-simulated oil spills, the bias of the geographic location at the center point with Stokes drift is 8.18 km, which is less than the 12.95 km bias without Stokes drift. These results demonstrate that Stokes drift needs to be included in the prediction of oil spills.</p></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1385110124000625/pdfft?md5=bb8e0053adb9e56ae4646132dd252061&pid=1-s2.0-S1385110124000625-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141978606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Boris A. López , María E. Riobó , Elizabeth A. Guzmán , Matthew R. Lee , Margarita C. Pérez
{"title":"Recruitment and growth of the xylophagous bivalve Bankia martensi (Stempell, 1899) with different levels of wood biofouling species cover","authors":"Boris A. López , María E. Riobó , Elizabeth A. Guzmán , Matthew R. Lee , Margarita C. Pérez","doi":"10.1016/j.seares.2024.102528","DOIUrl":"10.1016/j.seares.2024.102528","url":null,"abstract":"<div><p>Teredinid bivalves (shipworms) are the main wood degraders in marine environments. However, little is known about the biological interactions between these marine wood borers and wood-associated biofouling species. Filter-feeding species and seaweeds are frequent biofoulers on the submerged wood. Using the marine xylophagous bivalve <em>Bankia martensi</em> (<span><span>Stempell, 1899</span></span>) as a model, we hypothesized that increasing the abundance of biofouling species on wood will decrease the recruitment and subsequent growth of the shipworm <em>B. martensi</em>. During the springs of 2020 and 2021, experiments manipulating biofouling cover were carried out using pine panels in Bahía Metri, southern Chile. Three experimental levels of biofouling cover were established (low: 0%–10%, intermediate: 40%–50%, and high: 90%–100%). After five months, the number of <em>B. martensi</em> perforations (as proxy as larval settlement density) and specimen sizes (length, width and volume) in the panels were measured. An inverse relationship between the perforation densities of <em>B. martensi</em> and biofouling cover on the wooden panels was observed. The most frequent biofouling species were mussels and seaweeds which tended to settle on the upper and lateral surfaces, while acorn barnacles and bryozoans were more frequent on the lower surface. <em>Bankia martensi</em> perforations were reduced with increasing biofouling cover. The number of perforations varied according to the panel surface, higher density on the upper and lateral surfaces and lower on the underside. <em>Bankia martensi</em> specimens were larger, both in length and in volume, in panels with low biofouling compared to intermediate and high biofouling cover, while width did not vary with treatment. Our results suggest that the biofouling cover decreases <em>B. martensi</em> recruitment and growth rates, which in turn reduces the wood degradation rate caused by this teredinid. Future manipulative experiments with selected biofouling species (filter-feeders, such as mussels and barnacles), as well as incorporating measurements of reproductive traits of shipworms could help in understanding the biological interactions between these marine communities of wood-boring and biofouling species.</p></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1385110124000613/pdfft?md5=1bbd7bedbcda7d7b1147f83cd1645db5&pid=1-s2.0-S1385110124000613-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141939350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ailing Gan , Lina Lin , Long Fan , Na Liu , Lei Yang , Chengxuan Li
{"title":"Analysis of a halocline mesoscale Eddy in the Northwind Basin, Arctic Ocean","authors":"Ailing Gan , Lina Lin , Long Fan , Na Liu , Lei Yang , Chengxuan Li","doi":"10.1016/j.seares.2024.102526","DOIUrl":"10.1016/j.seares.2024.102526","url":null,"abstract":"<div><p>Eddies have been observed at all depths and in all regions of the Arctic Ocean. However, given the complex geographic conditions and dynamic environments of this ocean, the synchronized observations of temperature, salinity, and currents, and the detailed analysis of individual eddies are still lacking in the Northwind Basin. Our study aims to address these research gaps. We observed an eddy from a mooring in the Northwind Basin in late October 2017. It is a large anticyclonic cold eddy within the Arctic halocline, with a maximum azimuthal velocity reaching 52.63 cm/s and a horizontal scale (~56 km) that significantly exceeds the first local baroclinic Rossby radius of deformation, i.e., it is in mesoscale. Its azimuthal velocity and scale are larger compared with those of nearby eddies, suggesting a relatively young state. This eddy possibly originated from the northern Chukchi Sea shelf, converging near Hanna Shoal with the Chukchi Slope Current before being advected northward into the Northwind Basin. Our study outlines detailed steps for extracting and analyzing eddies from mooring data and contributes to improving the understanding of the characteristics of Arctic Ocean eddies, providing a typical case for the investigation of eddies in the Northwind Basin.</p></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1385110124000595/pdf?md5=4f09d18d6b8dfe63d46a686425c23e3b&pid=1-s2.0-S1385110124000595-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141939263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Amélie Lehuen, Rose-Marie Oulhen, Zhengquan Zhou, Jaco de Smit, Lennart van Ijzerloo, Francesco Cozzoli, Tjeerd Bouma, Francis Orvain
{"title":"Multispecies macrozoobenthic seasonal bioturbation effect on sediment erodibility","authors":"Amélie Lehuen, Rose-Marie Oulhen, Zhengquan Zhou, Jaco de Smit, Lennart van Ijzerloo, Francesco Cozzoli, Tjeerd Bouma, Francis Orvain","doi":"10.1016/j.seares.2024.102525","DOIUrl":"10.1016/j.seares.2024.102525","url":null,"abstract":"<div><p>Bioturbation in estuarine environments describes all sediment reworking processes implied in sediment transport. However, modelling at large spatial and temporal scales remains a challenge because of the need to consider the fauna at the community level, and because animal behaviour is highly seasonal with non-linear effects of macrofauna functional trait interactions. Bioturbation processes can be linked to the activity of organisms, based on the principle of energy ecology, linking the metabolic rate to the erodibility of a sediment colonised by benthic fauna. This study investigates this postulate by evaluating the erodibility parameters of a sediment subjected to: i) the bioturbation under seasonal temperature variations; ii) the synergistic bioturbation of different species. The experimental design consisted of: i) three temperature levels (winter, spring and summer), ii) three types of species duos (<em>Cerastoderma edule</em> and <em>Macoma balthica</em>; <em>Scrobicularia plana</em> and <em>Hediste diversicolor</em>; <em>Corophium volutator</em> and <em>Peringia ulvae</em>) at 4 different relative densities. Two successive experiments were carried out on the same individuals: measurement of oxygen consumption of fauna then measurement of the erodibility of the colonised sediment in a flume. The oxygen consumption confirmed that the metabolic rate is a good model of the fauna respiration, regardless of species. The erosion results indicated that the metabolic rate in the case of the fluff layer resuspension is an interesting descriptor for 1) the assessment of the bioturbation under variable temperatures and 2) the integration of the two different bioturbator species that could co-occur in the same habitat. In contrast, the effect of bioturbation on the mass sediment erosion threshold cannot be easily modelled by using the metabolic rate and the classification in functional groups is required. Bioturbation models of the fluff layer using metabolic rate is a promising tool for modelling the effects of faunal communities on sediment transport at the scale of an estuary and over the long term, even projected in the context of global warming.</p></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1385110124000583/pdfft?md5=3a0b6dbc61f074194f4604fd82e36564&pid=1-s2.0-S1385110124000583-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141939264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Temperature-induced copepod depletion and the associated wax of Bellerochea in Belgian coastal waters: Implications and shifts in plankton dynamics","authors":"Jonas Mortelmans , Ilias Semmouri , Michiel Perneel , Rune Lagaisse , Luz Amadei Martínez , Zoe Rommelaere , Pascal I. Hablützel , Klaas Deneudt","doi":"10.1016/j.seares.2024.102523","DOIUrl":"10.1016/j.seares.2024.102523","url":null,"abstract":"<div><p>Since 2018, severe and recurrent copepod depletions have been observed in Belgian coastal waters. These depletions have been described as temperature-induced mass mortality events. This paper confirms the relation of copepod abundance anomalies with periods of high temperature based on new data. Although severe, the effects, consequences and implications of this depletion remain unknown. Our study suggests that the absence of zooplanktonic predators in autumn, together with the availability of nutrients discharged via the Scheldt estuary, allowed a bloom of the diatom <em>Bellerochea</em>, in a season otherwise characterised by low phytoplanktonic activity. Although the bloom reaches high abundances, its effects on the marine environment are not yet visible. The enormous abundances are likely to induce small-scale oxygen depletions which might further translate to the environment. Communities of Calanoida, Canuelloida and Cyclopoida tend to recover from the annual autumn depletion, although the typical autumn peak is entirely missing in the years subject to severe heat waves and associated high water temperatures. As a result, copepod dynamics have drastically changed since the first observed depletion and associated bloom of <em>Bellerochea</em> in 2018.</p></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S138511012400056X/pdfft?md5=6d8540752f01a2d1d899de3914dea0aa&pid=1-s2.0-S138511012400056X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141954228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jaesoon Kim , Naeun Jo , Jisoo Park , Kwanwoo Kim , Sanghoon Park , Yejin Kim , Jaehong Kim , Bo Kyung Kim , Boyeon Lee , Sang Heon Lee
{"title":"Different amino acid compositions and food quality of particulate organic matter driven by two major phytoplankton groups in the Ross Sea","authors":"Jaesoon Kim , Naeun Jo , Jisoo Park , Kwanwoo Kim , Sanghoon Park , Yejin Kim , Jaehong Kim , Bo Kyung Kim , Boyeon Lee , Sang Heon Lee","doi":"10.1016/j.seares.2024.102524","DOIUrl":"10.1016/j.seares.2024.102524","url":null,"abstract":"<div><p>Understanding the amino acid (AA) composition of phytoplankton-derived particulate organic matter (POM) is crucial for unraveling phytoplankton physiology and assessing food quality. This study investigated AA compositions and food quality of POM associated with two phytoplankton groups in the Ross Sea polynya. The <em>Phaeocystis antarctica</em> (<em>P. antarctica</em>)-predominant group, with <em>P. antarctica</em> overwhelmingly contributing to its composition, demonstrated a fresh state and heightened physiological activity. In contrast, the <em>P. antarctica</em> and diatoms-mixed group exhibited superior essential amino acids (EAAs) contributions and a higher EAA index (EAAI), indicating enhanced food quality. Dissimilarity Index values provided nuanced insights into degradation stages not captured by other indices. Despite lower physiological activity, diatoms in the mixed group stood out as crucial sources of high-quality nutrition for higher trophic levels in the Ross Sea polynya. The observed variations in AA compositions not only reflected the phytoplankton community structure but also provided insights into their physiological conditions. Given the ongoing climate-induced environmental changes potentially influencing phytoplankton communities, this study underscores the potential impacts on the intricate food web dynamics in the Ross Sea polynya. The assessment of AA composition emerged as a valuable tool for understanding the ecological implications for higher trophic levels in this polar region.</p></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1385110124000571/pdfft?md5=90b722bd60e39fb532010028538b4af4&pid=1-s2.0-S1385110124000571-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141939265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mirta Zupan , Joop Coolen , Ninon Mavraki , Steven Degraer , Tom Moens , Francis Kerckhof , Lucia Lopez Lopez , Jan Vanaverbeke
{"title":"Life on every stone: Characterizing benthic communities from scour protection layers of offshore wind farms in the southern North Sea","authors":"Mirta Zupan , Joop Coolen , Ninon Mavraki , Steven Degraer , Tom Moens , Francis Kerckhof , Lucia Lopez Lopez , Jan Vanaverbeke","doi":"10.1016/j.seares.2024.102522","DOIUrl":"10.1016/j.seares.2024.102522","url":null,"abstract":"<div><p>The scour protection layer (SPL) is a layer of large stones placed around man-made structures in the marine environment, preventing sediment scouring while also providing new hard substrate and potentially increasing the structural complexity of the original environment. This fosters development of diverse benthic communities, supporting high abundance of organisms. Future SPLs are therefore a potential tool for the ecological enhancement of degrading marine habitats following the principles of nature-inclusive design. Yet, factors that shape the benthic communities on SPLs are poorly understood. Here, we analysed existing data from SPLs from offshore wind farms and a gas platform in the southern North Sea to determine how SPL characteristics affect the biofouling community structure. We combined this analysis with an in-situ experiment testing for the effects of habitat complexity on SPL communities. Our results demonstrate that abundant and diverse communities are present on all SPLs. On a regional scale, communities are mainly affected by depth and location. Increasing habitat complexity has significant and positive effects on species richness yet was non-significant for biomass and abundance of the biofouling community. If applied thoughtfully, nature-inclusive design of the SPL habitat, including manipulation of the physical complexity of the structure, can effectively promote biodiversity.</p></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1385110124000558/pdfft?md5=7dc498aa4cbfaf4cb7dce75ec6f50651&pid=1-s2.0-S1385110124000558-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141845792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Diyi Chen , Xin Lu , Zhao Wang , Yan Qu , Qingqiang Ding
{"title":"Durability test study of laminated specimens for large glass fiber protective structures in seawater","authors":"Diyi Chen , Xin Lu , Zhao Wang , Yan Qu , Qingqiang Ding","doi":"10.1016/j.seares.2024.102521","DOIUrl":"10.1016/j.seares.2024.102521","url":null,"abstract":"<div><p>The mechanical properties of glass fiber composite structures prepared by vacuum forming manufacturing process are influenced by various factors and have a certain degree of dispersion, resulting in unclear durability characteristics when applied in corrosive seawater engineering. Firstly, a variety of resin materials for underwater protective structures are tested for seawater degradation, and excellent resins that can still ensure the structural load-bearing capacity and stability after immersion are selected. Secondly, based on relevant standards and specifications, the article conducted seawater immersion aging tests at room temperature and accelerated seawater immersion aging tests at 60°C on glass fiber specimens of 430 epoxy bisphenol vinyl resin and 1967 polycyclic pentadiene resin. Finally, the degradation characteristics of strength, modulus, and impact toughness of the specimens were obtained through a series of mechanical property tests, such as bending, compression, shear and impact, under different aging time periods in room temperature and 60°C seawaters, respectively. The article summarizes the differences in the durability and mechanical properties degradation of large glass fiber protective structures with different resins during seawater immersion.</p></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1385110124000546/pdfft?md5=c8a4ff7719c73234dffd12b173c257d1&pid=1-s2.0-S1385110124000546-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141844914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hazard assessment of dynamic marine processes during two extreme weather systems near the Shandong Peninsula","authors":"Dongxue Mo , Ning Wang , Po Hu","doi":"10.1016/j.seares.2024.102520","DOIUrl":"10.1016/j.seares.2024.102520","url":null,"abstract":"<div><p>Typhoons and extratropical cyclones both occurred frequently on the Shandong Peninsula and have induced severe dynamic marine disasters. In this study, the typhoons and extratropical cyclones that occurred from 1979 to 2018 were counted and classified according to their tracks. We simulated the storm surge and disastrous waves using a coupled ocean-wave model and assessed the hazard distribution under different types of typhoons and extratropical cyclones. Through comparison, it was found that the southern Yellow Sea steering type typhoons and Yangtze-Huai cyclones occurred most frequently and were most likely to cause disasters. Regarding the hazard posed by the storm surge, there was a clear demarcation between the northern and southern coasts of the peninsula, as well as between the eastern and western coasts. The western coast of the peninsula was more exposed to storm surges induced by typhoons, while the northern coast of the peninsula was more exposed to storm surges induced by extratropical cyclones. The hazard posed by waves exhibited a localized characteristic. The wave hazard was the greatest near the peninsula cape and the lowest surrounding the Laizhou Bay, which was contrary to the distribution of the storm surge hazard. The identification of key management areas for disasters provides basic data and a technical reference for coastal development planning and can play a positive role in disaster prevention.</p></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1385110124000534/pdfft?md5=44b139fcf5f7957b59a54cc31c727605&pid=1-s2.0-S1385110124000534-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141769566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Trends of ocean temperature influencing snow crab catch along the Scotian Shelf","authors":"Nicholas D. Levangie, Ricardo A. Scrosati","doi":"10.1016/j.seares.2024.102519","DOIUrl":"10.1016/j.seares.2024.102519","url":null,"abstract":"<div><p>The snow crab (<em>Chionoecetes opilio</em>) fishery has great economic importance for Nova Scotia, contributing $263 million to fisheries and more than one-fifth of Canadian snow crab revenues in 2021. Being a stenothermic species, snow crabs can only live within a narrow range of temperatures between −1 to 6 °C. The Scotian Shelf holds the southernmost populations of snow crab in the Atlantic and snow crab catch-per-unit-area (CPUA) in the Scotian Shelf. Trawl survey data from Ocean, because these cold-temperature requirements are a limiting factor for its distribution. This study investigates the relationship between bottom ocean temperature Fisheries and Oceans Canada from 2012 to 2021 were used. Through nonlinear modelling, CPUA (mt/km<sup>2</sup>) was regressed with respect to bottom ocean temperature along Northwest Atlantic Fisheries Organization divisions N-ENS, CFA 23, CFA 24, and CFA. The temperature-vs-CPUA relationship was unimodal for all studied years. The best-fit models explained a limited amount of variation, but CPUA consistently decreased to zero towards the highest recorded temperatures. Due to the ongoing global warming, bottom ocean temperatures across the Scotian Shelf will likely continue to increase, which thus might harm the Scotian Shelf snow crab fishery. In conclusion, this study underscores the potential impact of global warming on the economically significant snow crab fishery in the Scotian Shelf. The findings serve as a critical alert to the possible consequences of rising ocean temperatures, thereby contributing to our understanding and preparation for the future of marine ecosystems and industries.</p></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1385110124000522/pdfft?md5=cb0202c5b7dcaff465588c4ce1df2d6f&pid=1-s2.0-S1385110124000522-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141623143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}