Journal of Marine Systems最新文献

{"title":"Modeling the structure changes of cold-water copepods Calanus euxinus population under the influence of the black sea depths deoxygenation","authors":"Elena Vasechkina ,&nbsp;Victor Melnikov","doi":"10.1016/j.jmarsys.2024.104017","DOIUrl":"10.1016/j.jmarsys.2024.104017","url":null,"abstract":"<div><div>The paper presents the results of modeling the possible changes in the structure of the population of <em>Calanus euxinus</em> Hulsemann, 1991 copepods in the Black Sea under the influence of deoxygenation that began in the late 1980s. Over the past 50 years, the depth of oxygen penetration in the deep sea has decreased by almost 50 m. The lower “life limit” of zooplankton in the Black Sea corresponds to the upper boundary of the suboxic layer, where intense copepod aggregation occurs at an oxygen concentration of 10 μM /L. In 1955–1976, this boundary was 130–140 m across the sea, but due to eutrophication and climate change since late 1980s, it has risen in deep water areas to 70–80 m. As a result, the dense copepod layers near the redoxcline and especially their reserve population stock, consisting of non-migrating individuals in diapause, may have been subjected to intensive eating by the Black Sea sprat, which lives to a depth of 100 m and can tolerate hypoxia. To explore this process, we created a new population dynamics model for <em>C. euxinus</em>, which makes it possible to assess changes in the abundance and structure of the population under conditions of a quasi-stationary state and during intensive predation of individuals in diapause. The model describes the dynamics of the <em>Сalanus</em> population based on a statistical description of the relationship between the growth of individuals, their fecundity, the duration of diapause, mortality, and environmental conditions: the concentration of food suspension and temperature in the layer of vertical migration. We put forward the hypothesis that the access of small pelagic fish to the concentration layers of copepods in diapause has a key effect on significant changes in the Black Sea ecosystem, associated with a decrease in the supply of forage plankton and fluctuations in the abundance of pelagic fish.</div></div>","PeriodicalId":50150,"journal":{"name":"Journal of Marine Systems","volume":"246 ","pages":"Article 104017"},"PeriodicalIF":2.7,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142427998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Do coastal or equatorial wind anomalies drive the Indian Ocean Dipole?","authors":"Jochen Kämpf","doi":"10.1016/j.jmarsys.2024.104016","DOIUrl":"10.1016/j.jmarsys.2024.104016","url":null,"abstract":"<div><div>Based on first scientific principles, this study shows that both equatorial and coastal wind anomalies influence the development of positive phases of the Indian Ocean Dipole (IOD) in the south-east tropical Indian Ocean (SETIO). While southeasterly winds are favorable for upwelling along Sumatra's southwest coast, zonal equatorial wind anomalies are the main control of IOD variability given that the resultant Kelvin wave enhances or suppresses the Sumatran upwelling. Many previous studies have argued that easterly equatorial wind anomalies in the SETIO are essential for triggering the positive Bjerknes feedback, and thereby, the development of positive IOD (pIOD) events. With a focus on the particularly strong pIOD event of 2019, here we show that pIOD events can also evolve in the absence of zonal equatorial wind anomalies. Hence, it is possible that the Bjerknes feedback along the equator is less involved in IOD variability than previously thought.</div></div>","PeriodicalId":50150,"journal":{"name":"Journal of Marine Systems","volume":"246 ","pages":"Article 104016"},"PeriodicalIF":2.7,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142428000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Dissolved calcium issues in estuaries and marine areas: Review of the Chinese Coast","authors":"Zhe Zhang ,&nbsp;Ximing Zhang ,&nbsp;Lixin Yi","doi":"10.1016/j.jmarsys.2024.104015","DOIUrl":"10.1016/j.jmarsys.2024.104015","url":null,"abstract":"<div><div>Dissolved calcium plays a critical role in coastal environments, influencing marine ecosystems and fisheries. This review comprehensively examines current research on dissolved calcium along China's coast. Despite its importance, research on dissolved calcium in China's estuarine and coastal areas is still in its early stages, spanning estuaries, continental shelf seas, and bays, yet with limited literature available. This review advocates for the use of automated EGTA (C₁₄H₂₄N₂O₁₀) potentiometric titration for accurate determination and quality control of dissolved calcium. Alternative techniques, such as ion chromatography and ICP-MS, are also viable options, while methods like fluorescence, capillary zone electrophoresis, and pulsed constant current control should be approached cautiously. Thermodynamics, terrestrial inputs, biological activity, and calcification influence dissolved calcium dynamics, resulting in its excess presence. Investigating the distribution and contributing processes of this excess calcium poses significant research challenges. Special scenarios including sea ice, submarine groundwater discharge, and hydrothermal vents warrant further investigation for their impact on excess calcium. Discrepancies between Ω_arag calculated from measured dissolved calcium and carbonate (CO₃²⁻), and apparent solubility product (K_sp) versus calcium-salt ratios, may introduce inaccuracies in acidification assessments. The intricate nature of calcium ions and their geochemical implications should be carefully considered when studying coastal acidification effects on the calcium carbonate system. While focusing on China's coastal regions, insights from these studies could substantially contribute to global research and management of coastal acidification.</div></div>","PeriodicalId":50150,"journal":{"name":"Journal of Marine Systems","volume":"246 ","pages":"Article 104015"},"PeriodicalIF":2.7,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142427997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mid-Summer observations of water column physical properties and circulation in the San Jorge Gulf (Patagonian Shelf)","authors":"Juan Cruz Carbajal ,&nbsp;Cédric Chavanne","doi":"10.1016/j.jmarsys.2024.104014","DOIUrl":"10.1016/j.jmarsys.2024.104014","url":null,"abstract":"<div><div>In this study, we present detailed insights into the mid-summer density field and flow patterns within the San Jorge Gulf (Patagonian Shelf of Argentina). Utilizing unique data acquired from a towed undulating vehicle equipped with a <em>Conductivity-Temperature-Depth</em> (CTD) sensor and a hull-mounted <em>acoustic Doppler current profiler</em> (ADCP), we investigate the spatial distribution and temporal evolution of the density structure and associated currents. Our observations reveal the presence of a distinctive bottom dome-like structure comprised of dense, cold, and saline waters in the central basin of the gulf during mid-summer. Analysis of the flow dynamics indicates the presence of a near-geostrophic flow regime sustaining this dense water feature. Furthermore, our study highlights the significant role of ageostrophic velocities, primarily influenced by the modulation of pycnocline thickness by M₂+M₄ internal tides. These findings contribute to a deeper understanding of the oceanographic processes governing the mid-summer dynamics in the San Jorge Gulf, shedding light on the interaction between density structures and associated currents. Such insights are essential for advancing our knowledge of coastal ocean circulation and its implications for various ecological and environmental phenomena.</div></div>","PeriodicalId":50150,"journal":{"name":"Journal of Marine Systems","volume":"246 ","pages":"Article 104014"},"PeriodicalIF":2.7,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142427999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Climate drivers of phytoplankton production along the Chilean coast","authors":"Felipe Tornquist,&nbsp;Grant R. Bigg,&nbsp;Robert G. Bryant","doi":"10.1016/j.jmarsys.2024.104013","DOIUrl":"10.1016/j.jmarsys.2024.104013","url":null,"abstract":"<div><p>The west coast of South America is known for its high primary productivity. The level of phytoplankton can be measured through satellite images that detect chlorophyll (Chl), which is dependent on several oceanographic and meteorological parameters. Climate drivers such as El Niño Southern Oscillation (ENSO) and the Southeast Pacific Subtropical Anticyclone (SPSA) affect these parameters and, consequently, the phytoplankton. The objective of this study was to identify the impact of ENSO on SPSA, climate variables, and phytoplankton patterns. Composites were created using the years selected with either strongly positive or negative ENSO to understand their influence on different parameters. To create the Chl composite, it was necessary to extend it using Canonical Correlation Analysis (CCA) based on the sea surface temperature (SST) pattern. The study concludes that ENSO has a noticeable impact on Chl, mainly in the Southern Zone during the warm season. This is driven by the expansion of SPSA to the South, which increases the sea level pressure (SLP) in that region. However, predicting the Chl concentration has a high degree of uncertainty due to its complexity.</p></div>","PeriodicalId":50150,"journal":{"name":"Journal of Marine Systems","volume":"246 ","pages":"Article 104013"},"PeriodicalIF":2.7,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0924796324000514/pdfft?md5=f921de2c2ad1002ce1fe9bbe33de8092&pid=1-s2.0-S0924796324000514-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142244169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"A multidecadal study of the Malabar upwelling system influencing Indian Mackerel landings along the coasts of Karnataka and Kerala, south-east Arabian Sea","authors":"Sneha Jha,&nbsp;Surya Datta Sudhakar,&nbsp;Swarnali Majumder,&nbsp;Sudheer Joseph,&nbsp;T.M. Balakrishnan Nair","doi":"10.1016/j.jmarsys.2024.104012","DOIUrl":"10.1016/j.jmarsys.2024.104012","url":null,"abstract":"<div><p>Indian Mackerel (<em>Rastrelliger kanagurta</em>) is an essential small pelagic fishery resource, contributing to nearly 30 % of India's total marine fish landing. However, this species' life cycle and stock status are poorly understood and data deficient. Ocean mesoscale events are also known to influence their landing, besides the environmental factors like- salinity, chlorophyll, and sea surface temperature, affecting these small pelagic fishes' availability, migration, feeding, and reproductive activity. The Malabar upwelling region (southwest coast of India) is a significant upwelling system where upwelling occurs during the monsoon months. The nutrient-rich water increases the productivity of surface water, leading to plankton abundance. This productivity sustains a fishery for several commercially important fishes, mainly small pelagics such as sardines, mackerels, and anchovies, supporting India's most significant coastal pelagic fishery. For understanding the relationship between the target fish and the oceanographic events, in the present study, Pearson's correlation has been estimated between Indian Mackerel landing, rainfall, Sea water temperature at 0, 10, 20, 30, 45, and 50 m depths, mixed layer depth (MLD), their anomalies and occurrences of potential fishing zone (PFZ) lines along the Malabar upwelling region and corresponding coasts of Karnataka and Kerala. Mackerel landing time series showed a significant autocorrelation in four-quarter lag, correlation with rainfall anomaly in one-quarter lag, with PFZ line and MLD in three-quarter lag, and with SWT@50 (Seawater temperature@50 m depth) and SST anomaly in two-quarter lag both in Karnataka and Kerala. Upwelling events, as indicated by the presence of PFZ lines, were found to significantly impact the landings of Indian mackerel along the Karnataka and Kerala coasts. Polynomial equations were used to model the relationship between mackerel landings and these environmental factors, effectively capturing the influence of these parameters on mackerel catch trends.</p></div>","PeriodicalId":50150,"journal":{"name":"Journal of Marine Systems","volume":"246 ","pages":"Article 104012"},"PeriodicalIF":2.7,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142230454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Coexistence of a native and an invasive mussel species across an environmental gradient: Do interactions matter?","authors":"Celia Olabarria ,&nbsp;Rosa M. Viejo ,&nbsp;Elsa Vázquez","doi":"10.1016/j.jmarsys.2024.104011","DOIUrl":"10.1016/j.jmarsys.2024.104011","url":null,"abstract":"<div><p>Introductions of invasive species are increasing worldwide, potentially threatening biodiversity. Although invasive species often displace native species by outcompeting them, coexistence between native and non-native species is common in diverse communities. A field experiment investigated the interactions between the native mussel <em>Mytilus galloprovincialis</em> and the invasive black pygmy mussel <em>Xenostrobus securis</em> across an environmental salinity gradient in the Ria de Vigo (NW Spain). The salinity gradient strongly affected the physiological responses of both mussel species as well as the competitive interactions between the two species. <em>Mytilus galloprovincialis</em> had a stronger effect on the invader than vice versa. The competition with <em>M. galloprovincialis</em> and the release from predation in certain estuarine areas may in part explain the dynamics of the invader population in the Ría de Vigo. Furthermore, results suggest that the invader may contribute positively to ecosystem functioning by increasing bentho-pelagic coupling, water-column clearance, and biodeposition of organic material in the innermost parts of estuaries, where it reaches large abundances. These areas are likely to promote and maintain the supply of propagules to the outermost parts, as well as favouring secondary spread along the Galician coast.</p></div>","PeriodicalId":50150,"journal":{"name":"Journal of Marine Systems","volume":"246 ","pages":"Article 104011"},"PeriodicalIF":2.7,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0924796324000496/pdfft?md5=ff19c6642a1876eb7322bf0939811161&pid=1-s2.0-S0924796324000496-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142172263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Potential bottom-up and top-down control of large microzooplankton in response to contrasting productive scenarios in the tropical southwestern Atlantic","authors":"Everton Giachini Tosetto ,&nbsp;Sigrid Neumann-Leitão ,&nbsp;Gabriel Bittencourt Farias ,&nbsp;Pedro Augusto Mendes de Castro Melo ,&nbsp;Fernando de Figueiredo Porto Neto ,&nbsp;Claire Carré ,&nbsp;Arnaud Bertrand","doi":"10.1016/j.jmarsys.2024.104010","DOIUrl":"10.1016/j.jmarsys.2024.104010","url":null,"abstract":"<div><p>Large microzooplankton, comprising organisms generally between 64 and 200 μm, plays a significant trophic role in marine ecosystems as primary or secondary consumers. In oligotrophic systems such as the Tropical Southwestern Atlantic, where primary production is dominated by Cyanobacteria, they provide a pivotal link between the basis of food webs and higher trophic levels. In this region, seasonal variations in circulation and continental runoff and wind mixing induce heightened phytoplankton biomass during autumn when compared to a less productive scenario observed in spring, leading to increased abundances of higher trophic levels. In order to establish the connection between primary producers and these higher trophic levels, we investigated the dynamics of large microzooplankton abundance in response to variations in phytoplankton biomass across different systems in the Tropical Southwestern Atlantic. Our findings highlight the complex interactions between bottom-up and top-down control mechanisms that shape large microzooplankton assemblages in these ecosystems. The increase in primary production was accompanied by an observable increase in the abundances of large microzooplankton organisms over the continental shelf, thereby supporting the hypothesis of bottom-up control. In contrast, offshore, in the South Equatorial Current System, a lower abundance of large microzooplankton was observed in the more productive scenario. The intricate relationships between large microzooplankton and higher trophic levels, particularly planktonic cnidarians, appear to be a key driver of these contrasting patterns. The presence of voracious gelatinous predators in the offshore systems, suggests a scenario in which top-down predation may counteract the expected bottom-up response of large microzooplankton to increased phytoplankton biomass. This indicates the importance of considering the entire trophic web when analysing the responses of large microzooplankton to changes in primary production.</p></div>","PeriodicalId":50150,"journal":{"name":"Journal of Marine Systems","volume":"246 ","pages":"Article 104010"},"PeriodicalIF":2.7,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142039781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Distribution, abundance, and reproductive stages of salps, doliolids, and chaetognaths in different water masses of the shelf and open ocean of the Southwestern Atlantic Ocean between 31° and 38° S","authors":"Gustavo A. Thompson ,&nbsp;Graciela N. Molinari ,&nbsp;Martin D. Ehrlich ,&nbsp;Maria C. Daponte","doi":"10.1016/j.jmarsys.2024.104000","DOIUrl":"10.1016/j.jmarsys.2024.104000","url":null,"abstract":"<div><p>The complex distribution of gelatinous zooplankton at the shelf and open ocean of the Southwestern Atlantic Ocean (31°-38°S) was closely linked to the prevailing water masses. Species composition differed significantly between subtropical and subantarctic assemblages in both neritic and oceanic environments. Diversity was lower in neritic and Malvinas assemblages but higher to the north of the Brazil-Malvinas Confluence. The influence of the Brazil Current was evident through the dominance of warm-water species such as <em>Flaccisagitta enflata, Fl. hexaptera, Pterosagitta draco, Pseudosagitta lyra</em>, and <em>Salpa fusiformis</em>, which displayed the highest abundances and different maturity stages north of the Confluence. The cold-waters originating from subantarctic regions were indicated by the presence of <em>Ps. gazellae, Eukrhonia hamata,</em> and <em>Serratosagitta tasmanica</em>, which showed higher abundances and the co-occurrence of different maturity stages south of the Confluence. The spread of low-salinity water into oceanic stations was indicated by the presence of species such as <em>Parasagitta friderici</em> and <em>Pa. tenuis</em>, which are typically found in neritic waters with low salinity. The coexistence of typical species from both warm- and cold-waters at oceanic stations in the Confluence section reflects the complex oceanographic structure of one of the most intense open-ocean fronts in the world ocean.</p></div>","PeriodicalId":50150,"journal":{"name":"Journal of Marine Systems","volume":"246 ","pages":"Article 104000"},"PeriodicalIF":2.7,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141945117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Variability in oceanographic conditions affecting Mesophotic Ecosystems along the South Eastern Pacific: Latitudinal trends and potential for climate refugia","authors":"Lucas de la Maza ,&nbsp;Evie A. Wieters ,&nbsp;Ricardo Beldade ,&nbsp;Mauricio F. Landaeta ,&nbsp;Alejandro Perez-Matus ,&nbsp;Sergio A. Navarrete","doi":"10.1016/j.jmarsys.2024.103999","DOIUrl":"https://doi.org/10.1016/j.jmarsys.2024.103999","url":null,"abstract":"&lt;div&gt;&lt;p&gt;Oceans have been changing at the fastest pace since the beginning of the Holocene. The South Eastern Pacific (SEP), including the Humboldt Upwelling Ecosystem (HUE) is subject to changes in upwelling winds, temperature, El Niño, and the ever-increasing local anthropogenic stressors, all of which have been documented for surface coastal waters where in-situ and remote observations are readily available. Temporal and spatial changes in the adjacent deeper waters where diverse Mesophotic Ecosystems are found have been scarcely documented. These marine ecosystems have been the focus of ecological studies for less than two decades. Here we provide an overview of the thermal variability at mesophotic depths and assess their potential as climatic refugia along all SEP ecoregions. We analyzed a time series of temperature and salinity from a 19 yr reanalysis based on remote and in-situ observations (CTD, ARGO, XBTs, moorings) to quantify variability in the Tropical (0–5°S), Northern Warm Temperate (5–30°S); Southern Warm Temperate (30–39.5°S) and Magellanic subregions (39.5–45°S), at two mesophotic depth strata (50 and 100 m), and a reference surface (5 m) depth. We assessed variability in the seasonal, interannual (El Niño) and ‘long-term’ (ca. 20 yr) scales, and the relationship with wind velocities. The thermal depth gradient between surface and mesophotic depths did not change smoothly with latitude but peaked within the northern portion of the warm temperate subregion, decreasing towards lower and higher latitudes. Seasonal variation in temperature was also largest in the north and south temperate subregions and minimal in the Magellanic subregion. Depth dampening of seasonal temperature variation was also strengthened at intermediate latitudes and much reduced in the tropics, where seasonal variation at mesophotic depths was similar to that at the surface. The strong interannual El Niño events were identified at all depths in tropical and temperate subregions, with stronger standardized effects at mesophotic layers than at the surface. Long-term (ca. two decades) temperature trends were significant and changed direction from warming to cooling along the SEP but were generally patchier at mesophotic layers. Spatial temperature gradients have remained relatively stable over the past two decades and were stronger at the surface than at mesophotic depths, and stronger within the tropics than in all other subregions. Surprisingly, the velocity of climate change was patchier and generally faster at mesophotic layers than at the surface. We conclude that, judging solely by physical environmental conditions, mesophotic ecosystems may be used by species with very different temperature affinities in temperate subregions, while in the tropics, more overlap in temperature affinities of component species may be found. Importantly, while the seasonal amplitude is reduced at mesophotic depth in most subregions, except the tropics, interannual disturbances ","PeriodicalId":50150,"journal":{"name":"Journal of Marine Systems","volume":"245 ","pages":"Article 103999"},"PeriodicalIF":2.7,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141542341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}