Estuarine Coastal and Shelf Science最新文献

{"title":"Extreme heat and drought did not affect interspecific interactions between dune grasses","authors":"Carlijn Lammers ,&nbsp;Paul M.J. Berghuis ,&nbsp;Angeles G. Mayor ,&nbsp;Valérie C. Reijers ,&nbsp;Max Rietkerk ,&nbsp;Tjisse van der Heide","doi":"10.1016/j.ecss.2024.109020","DOIUrl":"10.1016/j.ecss.2024.109020","url":null,"abstract":"<div><div>The frequency of extreme climatic events, such as storm and heatwaves, is predicted to increase because of climate change. Understanding interactions between species in environmental extremes plays a vital role in predicting ecosystem resilience. In this study, we examined how heat and drought combined with interspecific interactions between pioneer dune builder sand couch (<em>Thinopyrum junceiforme</em>) and primary foredune builder marram grass (<em>Calamagrostis arenaria</em>) affected growth and survival of the latter species in an embryonic dune system. In a 4-week field experiment, we transplanted marram grass within sand couch patches or on bare sediment. This plant interaction treatment was combined with a compound heat and drought treatment that was simulated with greenhouses that inhibited rainfall and increased temperatures (average daily maximum temperature +4 °C). Results show that the presence of sand couch significantly reduced growth (i.e., formation of new shoots, shoot and root length and aboveground biomass) of marram grass. By contrast, the heat and drought treatment had no significant effects on growth or survival of marram grass, irrespective of species interactions. The neutral response suggests that even in its early establishment marram grass is highly heat and drought resistant. Since the competitive interaction between sand couch and establishing marram grass did not change under pressure of an extreme heat and drought event, we expect that these factors do not affect embryonic dune development.</div></div>","PeriodicalId":50497,"journal":{"name":"Estuarine Coastal and Shelf Science","volume":"311 ","pages":"Article 109020"},"PeriodicalIF":2.6,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657278","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":"Turbidity estimation from an acoustic backscatter signal in a tropical coral reef system","authors":"Cesar Linton-Izquierdo ,&nbsp;David Salas-Monreal ,&nbsp;Gabriela Athie ,&nbsp;José Antolín Ake-Castillo ,&nbsp;Mark Marín-Hernandez ,&nbsp;Rocío de Guadalupe Bernal-Ramírez","doi":"10.1016/j.ecss.2024.109018","DOIUrl":"10.1016/j.ecss.2024.109018","url":null,"abstract":"<div><div>This study investigated the estimation of Nephelometric Turbidity Units (NTU) from backscatter signals in a tropical coral reef system using a 1200-kHz towed Acoustic Doppler Current Profiler (ADCP). In order to perform the estimation, simultaneous acoustic backscatter and turbidity data were collected near the surface (above the pycnocline). Simultaneously, water samples at the same depths were analyzed to determine sediment composition. The results showed that a second-degree polynomial model provided the best correlation (r = 0.69) between backscatter signals and turbidity measurements, highlighting the nonlinear relationship between acoustic signals and turbidity values obtained from optical devices. The reef's bathymetry significantly influenced the seawater turbidity, revealing the importance of physical configuration and hydrodynamic conditions in sediment distribution. From the sediment composition, it was determined that 89% of the total suspended solids are terrigenous sediments. This integrated methodological approach provides a detailed understanding of sediment dynamics, essential for the conservation and sustainable management of coral reefs around the word in a noninvasive way.</div></div>","PeriodicalId":50497,"journal":{"name":"Estuarine Coastal and Shelf Science","volume":"311 ","pages":"Article 109018"},"PeriodicalIF":2.6,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657280","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":"Fluctuation asymmetry of Larimichthys polyactis otoliths from artificial and natural habitats: A study case in Haizhou Bay, China","authors":"Dechen Yi ,&nbsp;Ze Zhao ,&nbsp;Chen Wu ,&nbsp;Tao Chen ,&nbsp;Hao Shi ,&nbsp;Shuo Zhang ,&nbsp;Shike Gao","doi":"10.1016/j.ecss.2024.109015","DOIUrl":"10.1016/j.ecss.2024.109015","url":null,"abstract":"<div><div>Fluctuating asymmetry (FA) in fish otoliths is a measure of subtle, random differences between paired otoliths, indicating deviations from perfect symmetry due to environmental influences during development. It reflects variations in growth and development within aquatic environments subjected to significant environmental pressures. In our study, we examined 238 <em>Larimichthys polyactis</em> from Haizhou Bay (Jiangsu, China), calculating the Asymmetric Square Coefficient of Variation (CV²_a) for four otolith characters: length, width, perimeter, and area of the left and right lateral sagittal otoliths. Our results showed that otolith width had the lowest CV²_a (1.78), whereas otolith perimeter had the highest (4.52). Notably, the CV²_a for otolith length and width in fish with a body length of less than 110 mm was significantly higher than in fish exceeding 150 mm (<em>P</em> &lt; 0.05). However, we observed no obvious pattern in the CV²_a changes across different habitats for each otolith character, except that a significant difference in CV²_a for otolith width was detected between the NA and the ORA (<em>P</em> &lt; 0.05). We hypothesize that ontogenetic variations in <em>L. polyactis</em> otolith FA are associated with the species' feeding habits and habitat preferences. The spatial sensitivity of otolith FA to environmental pressures remains an area requiring further investigation. Future research will expand our dataset to include otolith FA from additional Sciaenidae species, aiming to enhance the accuracy and reliability of environmental pressure assessments in coastal waters.</div></div>","PeriodicalId":50497,"journal":{"name":"Estuarine Coastal and Shelf Science","volume":"311 ","pages":"Article 109015"},"PeriodicalIF":2.6,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657151","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":"Temporal and spatial dynamics of the non-indigenous bryozoan, Amathia verticillata, and its associated invertebrate community","authors":"Emily M. Zavacki ,&nbsp;Nathalie B. Reyns ,&nbsp;Jeffrey A. Crooks ,&nbsp;Michel A. Boudrias","doi":"10.1016/j.ecss.2024.109021","DOIUrl":"10.1016/j.ecss.2024.109021","url":null,"abstract":"<div><div>The widespread non-indigenous bryozoan, <em>Amathia verticillata</em> primarily colonizes in coastal bays and harbors on anthropogenic structures. Although this habitat-forming bryozoan is widely recognized to house a variety of marine invertebrates within its structure, little is known about their spatiotemporal dynamics and their associated invertebrate community in Southern California, USA. Thus, we undertook a comprehensive yearlong study (July 2021–2022) in an urbanized estuary (Mission Bay, San Diego) to quantify <em>A. verticillata</em> percent cover and abiotic conditions at 6 stations with varying environmental conditions. The seasonal and spatial gradients in temperature and salinity within Mission Bay were as expected with seasonal hypersalinity typical of Mediterranean climate regions. The percent cover of <em>A. verticillata</em> was positively correlated with temperature with the highest percent cover found during the warmest periods, and higher average percent cover found in the warmer, eastern parts of Mission Bay. We also collected three replicate <em>A. verticillata</em> colonies to characterize the marine invertebrate community associated with this non-indigenous bryozoan. We identified 25 families, 24 genera, and 19 organisms to species belonging to the taxonomic groups: amphipods, isopods, tanaids, and polychaetes. Furthermore, we identified juvenile stages and ovigerous females living within <em>A. verticillata</em>. None of the identified invertebrate families contributed more than 21 % to the community. The seasonal growth and annual temporal patterns of <em>A. verticillata</em> may prevent competitively dominant species from becoming established within the invertebrate community and allow <em>A. verticillata</em> to harbor a diverse invertebrate community. Sphaeromatidae isopods were the most common family found in the bryozoan colonies, likely reflecting their broad environmental tolerances. Additionally, while some of the invertebrates found within <em>A. verticillata</em> were also non-indigenous species, more work needs to be done to determine if <em>A. verticillata</em> disproportionately supports these species over native species. Collectively, our results imply that <em>A. verticillata</em> functions as a nursery habitat on anthropogenic structures for peracarid crustaceans and polychaetes. Furthermore, <em>A. verticillata</em> assemble analogous communities across their distribution, which may indicate that invasions are homogenizing biota globally.</div></div>","PeriodicalId":50497,"journal":{"name":"Estuarine Coastal and Shelf Science","volume":"311 ","pages":"Article 109021"},"PeriodicalIF":2.6,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657152","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":"Drastic change in estuarine ostracod assemblages after the 2020 kyushu floods, Japan: A fundamental approach with application to past flood events","authors":"Yusuke Terao ,&nbsp;Gengo Tanaka","doi":"10.1016/j.ecss.2024.109017","DOIUrl":"10.1016/j.ecss.2024.109017","url":null,"abstract":"<div><div>Floods resulting from heavy rainfall can induce short- and/or long-term changes in aquatic environments, leading to sequential decreases in living organisms. However, no reports have documented how ostracod assemblages change following floods and how they recover. The 2020 Kyushu Flood caused substantial damage from July 3rd to July 31st, particularly affecting Kumamoto Prefecture in Kyushu. Here we report a change of ostracod assemblages during and after the event at a fixed point. The frequency of species and the similarity of assemblages recovered within the four months. Among the characteristic species, <em>Spinileberis pulchra</em>, with fewer environmental constraints on its distribution, became the dominant species at the fixed point post-flood, while <em>Loxoconcha ocellata</em>, constrained by more environmental factors, disappeared but recovered within a year. The flood event is also preserved in sediment near the fixed point, and the event is characterized by the ostracod assemblages based on low marine, high brackish and freshwater species frequency. Ostracod assemblages serve as a useful indicator for identifying past flood events.</div></div>","PeriodicalId":50497,"journal":{"name":"Estuarine Coastal and Shelf Science","volume":"311 ","pages":"Article 109017"},"PeriodicalIF":2.6,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657281","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":"Corrigendum to “Variability of bio-optical properties in nearshore waters of the estuary and Gulf of St. Lawrence: Absorption and backscattering coefficients” [Estuar. Coast Shelf Sci. 264 (2022) 107688]","authors":"Carlos A.S. Araújo ,&nbsp;Simon Bélanger","doi":"10.1016/j.ecss.2024.109016","DOIUrl":"10.1016/j.ecss.2024.109016","url":null,"abstract":"","PeriodicalId":50497,"journal":{"name":"Estuarine Coastal and Shelf Science","volume":"310 ","pages":"Article 109016"},"PeriodicalIF":2.6,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659976","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":"Extending multi-criteria coastal vulnerability assessment to low-lying inland areas: Examples from Estonia, eastern Baltic Sea","authors":"Mojtaba Barzehkar ,&nbsp;Kevin Parnell ,&nbsp;Tarmo Soomere","doi":"10.1016/j.ecss.2024.109014","DOIUrl":"10.1016/j.ecss.2024.109014","url":null,"abstract":"<div><div>The assessment of vulnerability to coastal hazards is a significant coastal management problem in regions with complicated shoreline, such as Estonia. This study implements the vulnerability assessment based on the multi-criteria decision analysis using fuzzy logic, analytical hierarchy process, and weighted linear combination (including input from experts) integrated with a geographical information system, to map the coastal vulnerability index (CVI) of the Estonian coasts at high resolution based on 16 parameters. The novelty of our approach is that we expand this assessment to a 2 km wide inland area that is an intrinsic but often overlooked part of coastal vulnerability estimates. The Estonian shores have mostly low and moderate vulnerability. Short segments with high vulnerability are impacted by severe waves and highly elevated water levels. The CVI also characterizes low-lying areas, such as large river valleys, reasonably well. Estimates of coastal vulnerability based on the three most important parameters according to experts’ judgements provide a reasonable approximation of the 16-parameter CVI in mostly homogeneous coastal regions, but less so elsewhere where its value is questioned. The results show that the application of the developed integrated decision support system, applied to a 2 km wide coastal strip, provides more information than single tools to assist coastal managers and stakeholders in planning, preparing for and responding to hazards.</div></div>","PeriodicalId":50497,"journal":{"name":"Estuarine Coastal and Shelf Science","volume":"311 ","pages":"Article 109014"},"PeriodicalIF":2.6,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657277","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":"Impact of the invasive brown alga Rugulopteryx okamurae on the benthic communities in the Northwestern Mediterranean Sea","authors":"Marie Borriglione ,&nbsp;Sandrine Ruitton ,&nbsp;Florian Boyer ,&nbsp;Delphine Thibault ,&nbsp;Aurélie Blanfuné ,&nbsp;Dorian Guillemain ,&nbsp;Marc Verlaque ,&nbsp;Charles-François Boudouresque ,&nbsp;Thierry Thibaut","doi":"10.1016/j.ecss.2024.109010","DOIUrl":"10.1016/j.ecss.2024.109010","url":null,"abstract":"<div><div>Over the centuries, the Mediterranean Sea has been significantly impacted by biological invasions, hosting more than 1000 non-indigenous species. In the early 2000s, the brown alga <em>Rugulopteryx okamurae</em>, native to the northwestern Pacific Ocean, was introduced to the Thau Lagoon (Occitania, France) due to extensive shellfish farming activities. Since 2016, this species has proliferated, completely covering the rocky habitats along the Marseille coasts (Provence, France) and becoming the dominant alga. The impact of <em>R. okamurae</em> on flora and fauna was investigated by comparing rocky benthic assemblages of invaded and non-invaded sites. Results showed a change in the communities, with a significant decrease in species diversity and a homogenization of algal and invertebrate populations in invaded sites. <em>Rugulopteryx okamurae</em> is a habitat transformer species inducing a significant habitat shift<em>. Rugulopteryx okamurae</em> also seems to affect the different algal strata of the benthic community, thus impacting the entire canopy. However, a weak effect of <em>R. okamurae</em> was observed on the functional structure of native algal communities, comparing invaded and non-invaded areas. This lack of structural variation between these zones could be explained by the degradation of habitats within the Calanques National Park, due to decades of intense overgrazing by <em>Sarpa salpa</em> and sea urchins.</div><div>But an impact on the ecosystem functioning should not be excluded. It is noteworthy that <em>R. okamurae</em>, a species presumed to prefer colder waters, has shown resistance to successive marine heat waves, allowing it to continue spreading and dominating without impairment.</div></div>","PeriodicalId":50497,"journal":{"name":"Estuarine Coastal and Shelf Science","volume":"310 ","pages":"Article 109010"},"PeriodicalIF":2.6,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659975","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":"Reaction of two sciaenid species to passing boats: Insights from passive acoustic localisation","authors":"André B. Matos ,&nbsp;Manuel Vieira ,&nbsp;M. Clara P. Amorim ,&nbsp;Paulo J. Fonseca","doi":"10.1016/j.ecss.2024.109012","DOIUrl":"10.1016/j.ecss.2024.109012","url":null,"abstract":"<div><div>Meagre (<em>Argyrosomus regius</em>) and weakfish (<em>Cynoscion regalis</em>) are two soniferous sciaenid species that use the Tagus estuary (Portugal) to breed. In this highly urbanized environment, fishes must deal with multiple anthropogenic stressors that include high noise levels caused by the intense boat traffic. We investigated how these sciaenids react to ferry boat and small boat passages, by assessing both changes in breeding calling activity with passive acoustic monitoring and escape responses with passive acoustic localisation. We found that meagre reduced calling activity after boat passages, but no such effect was observed in weakfish. Instead, weakfish moved in response to boat passages suggesting an escape response. Meagre also changed positions and dispersion patterns, but movements were more modest. This study uses a cost-effective and non-invasive passive acoustic localisation method to elucidate the behavioural response of soniferous fish to anthropogenic noise for the first time, contributing to our understanding of the way fish react to this stressor. Such knowledge is especially important in contexts where fish are exposed to highly prevalent human-generated noise during the breeding season, such as in busy estuaries and coastal areas.</div></div>","PeriodicalId":50497,"journal":{"name":"Estuarine Coastal and Shelf Science","volume":"311 ","pages":"Article 109012"},"PeriodicalIF":2.6,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657149","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":"Yucatan shelf’s larval density and distribution of Auxis spp. and Caranx crysos are primarily driven by regional upwelling and seasonality","authors":"Gonzalo Daudén-Bengoa ,&nbsp;Uriel Ordoñez-López ,&nbsp;Sharon Z. Herzka","doi":"10.1016/j.ecss.2024.109011","DOIUrl":"10.1016/j.ecss.2024.109011","url":null,"abstract":"<div><div>The extensive Yucatan Shelf (YS) in the southern Gulf of Mexico provides habitat for many marine species and supports important fisheries. A striking feature is the regional upwelling along its eastern margin due to the interaction of the Yucatan Current with the western slope of the Yucatan Channel. Coupled with easterly winds, the upwelled water fertilizes the shelf and contributes to high productivity in an otherwise oligotrophic region. However, an understanding of the role that regional upwelling plays on fish spawning and larval fish distributions is limited. We describe the distribution, frequency of occurrence, and densities of two commercially important neritic species (<em>Auxis</em> spp. and <em>Caranx crysos</em>) with contrasting life histories (different adult habitat, neritic vs. neritic and oceanic, and with spawning peak vs. year around spawner). The relationship between larval density and environmental variables, including upwelling indicators, was examined for three oceanographic cruises that covered the entire YS and which were held during summer through fall (2015, 2016 and 2018). None (<em>Auxis</em> spp.) or very few (<em>C. crysos</em>) larvae were caught during the late fall cruise in November. The highest densities of both taxa were found during the summer cruise in July, consistent with their spawning periods<em>.</em> Both species were mostly distributed beyond the 40 m isobath, and the highest densities were found over the central and eastern shelf. Generalized additive models indicated that <em>Auxis</em> spp. and <em>C. crysos</em> densities were correlated with low chlorophyll <em>a</em> concentration (located in the outer shelf) and a shallower 22.5 °C isotherm (a proxy for upwelling), indicating that regional upwelling was associated with higher larval fish densities.</div></div>","PeriodicalId":50497,"journal":{"name":"Estuarine Coastal and Shelf Science","volume":"311 ","pages":"Article 109011"},"PeriodicalIF":2.6,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657279","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}