Journal of Experimental Marine Biology and Ecology最新文献

{"title":"Combining 13C, 15N, and 2H tracers to measure feeding and metabolic activity in marine, shallow-water sponges – A pilot study","authors":"Tanja Stratmann ,&nbsp;Diana X. Sahonero-Canavesi ,&nbsp;Marcel T.J. van der Meer","doi":"10.1016/j.jembe.2025.152123","DOIUrl":"10.1016/j.jembe.2025.152123","url":null,"abstract":"<div><div>Shallow-water sponges can reach high densities and have several functions in the ecosystem. They also have a fast cell turnover and therefore can serve as test animals for the development of methods to measure the metabolic activity of individual organisms. Here, we measured the feeding and metabolic activity (i.e., uptake of ²H) of <em>Halichondria panicea</em> using a triple stable isotope labeling experiment with ¹³C and ¹⁵N-enriched bacteria as substrate and ²H from deuterated water (²H₂O).</div><div>Sponges were collected in the Eastern Scheldt (North Sea) and incubated in 1 % (volume/volume) ²H-enriched seawater in the presence of ¹³C- and ¹⁵N-enriched inactivated bacteria substrate for 12 h. Water samples for the analysis of dissolved inorganic carbon (DIC), ¹³C-DIC, and inorganic nutrients were taken at the beginning and end of the incubations, while oxygen concentration was recorded continuously. Sponges were sampled for bulk analyses of ¹³C, ¹⁵N, and ²H in sponge tissue, and for ¹³C and ²H incorporation into phospholipid-derived fatty acids (PLFAs).</div><div>Sponges incorporated ¹³C, ¹⁵N, and ²H into bulk sponge tissue. The PLFAs extracted from the sponges contained on average 5.61 μg ¹³C g⁻¹ dry mass (DM) sponge and 5.43 ng ²H g⁻¹ DM sponge. Most ¹³C derived from the substrate bacteria was incorporated into bacteria-specific PLFAs of the sponge microbiome; ²H, in comparison, was mostly built in sponge-specific PLFAs.</div><div><em>H. panicea</em> were in a similar condition as starving specimens from the Baltic Sea which suggests that the large bivalve stocks in the Eastern Scheldt outcompete this sponge for food.</div></div>","PeriodicalId":50197,"journal":{"name":"Journal of Experimental Marine Biology and Ecology","volume":"591 ","pages":"Article 152123"},"PeriodicalIF":1.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144678746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stable isotope analysis of New Zealand sea lion (Phocarctos hookeri) whiskers shows distinct regional ecological niches","authors":"B. Louise Chilvers,&nbsp;Diana Galbraith","doi":"10.1016/j.jembe.2025.152121","DOIUrl":"10.1016/j.jembe.2025.152121","url":null,"abstract":"<div><div>A region's isoscape (isotopic values within a marine ecosystem) can vary markedly, providing the ability to assess the foraging and migration behaviours of apex marine predators through stable isotope analysis of inert tissue such as whiskers. Additionally, these values can be used to determine the area of origin. The New Zealand sea lion (<em>Phocarctos hookeri</em>) breeds over 7 degrees of latitude from Otago Peninsula (45.8°S), South Island, New Zealand, to Campbell Island (52.5°S), a 750 km distance. For most of their range, there is incomplete description of their foraging ecology and diet.</div><div>We analysed δ¹³C and δ¹⁵N stable isotope ratios from pup whiskers (<em>n</em> = 160) from the five main breeding areas, across three distinct regions for New Zealand sea lions. We investigated isotopic niches for each breeding area to give insight into foraging behaviours and determined whether isotopic values could be used to identify the place of origin of individuals. We found significant differences in isotopic values between the five breeding areas except Enderby and Dundas Islands, Auckland Islands. The differences between breeding areas are likely driven by a combination of prey abundance, distribution and consumption by the pups' mothers, underlying oceanographic variability, varying isotopic baselines, and potential impacts from human influences. Isotopic niche widths were greatest in the Auckland Islands region. This research highlights the value of stable isotope analysis to investigate regional scale variations of apex marine predators foraging and could provide insight into anthropogenic and environmental factors that could influence resource use.</div></div>","PeriodicalId":50197,"journal":{"name":"Journal of Experimental Marine Biology and Ecology","volume":"591 ","pages":"Article 152121"},"PeriodicalIF":1.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144656220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Artificial isopod burrows provide a refuge from desiccation for intertidal crustaceans","authors":"Ethan X. Roberts,&nbsp;Lexie Cepeda,&nbsp;Jack A. Morgan,&nbsp;Timothy M. Davidson","doi":"10.1016/j.jembe.2025.152124","DOIUrl":"10.1016/j.jembe.2025.152124","url":null,"abstract":"<div><div>The novel habitats created by ecosystem engineers can serve as key refuges for other species, particularly in stressful intertidal habitats. However, the specific benefits these habitats provide and why other species use them are less understood. The introduced burrowing isopod <em>Sphaeroma quoianum</em> is a widespread intertidal ecosystem engineer in Northeast Pacific estuaries. Numerous species inhabit its burrows during low tide suggesting burrows may confer benefits to their occupants. We tested if burrows created by <em>S. quoianum</em> provide a refuge for intertidal invertebrates using lab and field desiccation experiments that compared a) survival of three common estuarine taxa (<em>S. quoianum</em>, <em>Gnorimosphaeroma noblei</em>, and gammarid amphipods) and b) microclimate (humidity, temperature) inside and outside of artificial isopod burrows in wood and sandstone substrata. In the lab, invertebrates survived 2–3 times longer inside of burrows than outside of burrows under aerial exposure. In the high intertidal, the probability of survival in burrows was 6.5 times greater for <em>S. quoianum</em> after four days and 12.7 times greater for <em>G. noblei</em> after two days, compared to isopods on the surface. In contrast, in the mid-intertidal, <em>G. noblei</em> was 1.75 times more likely to survive in burrows, whereas <em>S. quoianum</em> survival did not differ between burrows and the surface. Burrows were also substantially more humid than surfaces, but temperature did not differ consistently. Our results show that even small microhabitats like isopod burrows provide a refuge from desiccation for intertidal invertebrates and may help explain their use by other estuarine intertidal species.</div></div>","PeriodicalId":50197,"journal":{"name":"Journal of Experimental Marine Biology and Ecology","volume":"591 ","pages":"Article 152124"},"PeriodicalIF":1.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Population differentiation of thermal physiology in the temperate coral Astrangia poculata","authors":"Deva K. Holliman ,&nbsp;Barry A. Logan ,&nbsp;Jaret S. Reblin ,&nbsp;Justin H. Baumann","doi":"10.1016/j.jembe.2025.152114","DOIUrl":"10.1016/j.jembe.2025.152114","url":null,"abstract":"<div><div>Understanding the evolutionary and physiological mechanisms that drive thermal tolerance is crucial to supporting coral conservation and restoration. In the face of climate change, organisms can cope with variable environmental landscapes through adaptive genetic differentiation and phenotypic plasticity. In this study, we utilized a factorial common garden experiment to assess stress tolerance and thermal plasticity of symbiotic colonies of the temperate coral, <em>Astrangia poculata</em>. We collected coral colonies from sites in Massachusetts, Rhode Island, and North Carolina, representing a 7.5° latitudinal range and a 10 °C range in mean summer seawater temperatures. We measured how acclimation of the corals to temperatures representative of summer means at their origin site versus other latitudes impacted basal rates of cellular respiration and photosynthesis, as well as stress indicators including endosymbiont density, chlorophyll fluorescence (F_v/F_m), and chlorophyll <em>a</em> content. We found evidence of heat stress at 32 °C in photosynthetic endosymbionts from all populations, especially those from North Carolina. Metabolic performance of the coral holobiont appears optimized for native conditions (28 °C) in NC populations but appears to be plastic in RI corals, as incubation in warmer than native conditions (28 °C) led to elevated respiration in RI corals. Metabolic performance does not differ between acclimation treatments in MA populations, suggesting both population-specific responses and differential plasticity of metabolic responses to temperature changes. Overall, we see some minimal support for locally adapted thermal maxima in these populations and some evidence of thermal plasticity. Continued work to understand the ecological repercussions of a high capacity for phenotypic plasticity will be important to understanding the long-term tolerance of this species to elevated temperatures predicted with climate change.</div></div>","PeriodicalId":50197,"journal":{"name":"Journal of Experimental Marine Biology and Ecology","volume":"590 ","pages":"Article 152114"},"PeriodicalIF":1.8,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144255174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigating the effects of aluminum exposure on the cell wall of the marine diatom Phaeodactylum tricornutum","authors":"Jie Ma ,&nbsp;Huinan Wu ,&nbsp;Yingqi Lao ,&nbsp;Zhen Zhang ,&nbsp;Fengyuan Chen ,&nbsp;Liangliang Huang ,&nbsp;Ke Pan","doi":"10.1016/j.jembe.2025.152117","DOIUrl":"10.1016/j.jembe.2025.152117","url":null,"abstract":"<div><div>Marine diatoms exhibit varying responses to aluminum (Al) in seawater, influenced by their cell wall composition and structure, yet the mechanisms driving this relationship remain poorly understood. Herein, this study aimed to elucidate how Al interacts with the cell wall of the model diatom <em>Phaeodactylum tricornutum</em> and impacts its physiological and ecological behaviors. To achieve this, novel multidisciplinary approaches that combine X-ray photoelectron spectroscopy, non-invasive micro-test technology, and atomic force microscopy were employed. The results showed that the presence of 100 nM Al in the cultural medium did not have a significant impact on the cell growth of <em>P. tricornutum</em>. However, with an increase in Al concentration to 2 μM, there was a notable decrease in cell growth. Al exposure altered cell wall functional groups, siliceous components, and nitrogen adsorption potential, alongside inducing nanoscale morphological changes, including increased surface roughness and modulus. These structural modifications correlated with reduced copepod grazing and accelerated sinking rates, suggesting that Al-cell wall interactions critically modulate diatom ecological dynamics. This work provides integrated evidence linking Al-induced cell wall remodeling to broader ecological consequences in marine diatoms, advancing understanding of trace metal impacts on phytoplankton ecology.</div></div>","PeriodicalId":50197,"journal":{"name":"Journal of Experimental Marine Biology and Ecology","volume":"590 ","pages":"Article 152117"},"PeriodicalIF":1.8,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144270632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dive wiggles as a proxy of prey consumption in krill-feeding penguins","authors":"W. Chris Oosthuizen ,&nbsp;Stefan Schoombie ,&nbsp;Marianna Chimienti ,&nbsp;Pierre A. Pistorius ,&nbsp;Andrew D. Lowther","doi":"10.1016/j.jembe.2025.152115","DOIUrl":"10.1016/j.jembe.2025.152115","url":null,"abstract":"<div><div>The dive profiles of pursuit-diving marine predators are often used to infer foraging behaviour, including potential indicators of prey consumption. ‘Wiggles’ are undulations in dive profiles that relate to foraging activity in a variety of marine predators. In penguins, wiggles are sometimes used as a proxy for prey consumption (e.g., catch per unit effort, CPUE), but this relationship remains poorly validated and likely varies with diet. We deployed animal-borne video cameras and depth recorders on chinstrap penguins (<em>Pygoscelis antarcticus</em>; <em>n</em> = 37) and identified over 17,000 euphausiid prey captures - mainly Antarctic krill (<em>Euphausia superba</em>) - during dives deeper than 3 m (<em>n</em> = 2458 dives). Using the video-observed prey captures as a reference, we tested how well various wiggle metrics derived from 1 Hz depth data predicted krill consumption by the penguins. Wiggle metrics generally showed a positive but noisy and highly variable relationship with the number of krill captured per dive, with association strength varying among metrics. While it is tempting to infer detailed foraging behaviours from dive wiggles (including ‘bottom distance’ generated by the R package diveMove), our results show: (1) notable rates of foraging – non-foraging dive misclassification; (2) only moderate agreement between CPUE estimated from wiggle counts and video observations; and (3) imprecise predictive models of actual prey consumption. While wiggle analyses offer some insight into prey consumption of krill-feeding penguins, our results suggest that alternative methods (e.g., acceleration-based indices) are needed to obtain more robust quantitative estimates of prey consumption.</div></div>","PeriodicalId":50197,"journal":{"name":"Journal of Experimental Marine Biology and Ecology","volume":"590 ","pages":"Article 152115"},"PeriodicalIF":1.8,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144255173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Organic enrichment negatively impacts meiobenthic copepods on Argentinean coasts","authors":"Michel Sciberras ,&nbsp;Agustin G. Menechella ,&nbsp;Néstor Pérez-Méndez ,&nbsp;Néstor J. Cazzaniga ,&nbsp;Hugo J. Marrero","doi":"10.1016/j.jembe.2025.152118","DOIUrl":"10.1016/j.jembe.2025.152118","url":null,"abstract":"<div><div>Organic enrichment is a growing threat to coastal environments, yet its effects on meiobenthic copepods in marine sediments remain poorly understood. In this large-scale observational study conducted in Buenos Aires Province, Argentina, we evaluated the impact of riverine input—particularly the organic matter transported by rivers—on the structure of meiobenthic copepod communities. We hypothesized that the amount of organic matter and other abiotic factors, influenced by river discharge, modify environmental conditions and affect copepod abundance and richness. Sampling was conducted in low intertidal zones associated with the mouth of eight rivers on three dates between 2019 and 2020. At each site, we collected samples at three coastal positions—river mouth, 200 m west, and 200 m east—to assess copepod richness and abundance, organic matter content, temperature, pH, salinity, and grain size. Our findings indicate that riverine input played a key role in shaping copepod community structure, with temperature emerging as the primary environmental driver of community composition. Organic matter content and salinity were also critical abiotic variables influencing abundance and richness. Salinity modulated the effect of organic matter, with negative impacts on abundance becoming more pronounced under high-salinity conditions. These patterns support the hypothesis that organic enrichment negatively impacts meiobenthic copepod communities, as even slight increases in organic matter content were linked to decreases in both abundance and richness.</div></div>","PeriodicalId":50197,"journal":{"name":"Journal of Experimental Marine Biology and Ecology","volume":"590 ","pages":"Article 152118"},"PeriodicalIF":1.8,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144514220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Maternal, temperature, and seasonal effects on yolk-sac larvae of Atlantic herring Clupea harengus in the western Baltic Sea","authors":"Amy T. Huang ,&nbsp;Katharina Alter ,&nbsp;Patrick Polte ,&nbsp;Myron A. Peck","doi":"10.1016/j.jembe.2025.152109","DOIUrl":"10.1016/j.jembe.2025.152109","url":null,"abstract":"<div><div>In marine fishes that spawn at specific times of the year, maternal effects interact with seasonal abiotic factors to influence offspring phenotypes that can affect growth, development, and survival of the early life stages. The relative importance of maternal versus abiotic processes throughout ontogeny is unclear. We incubated the progeny of 22 Atlantic herring <em>Clupea harengus</em> females from either early-, mid-, or late-spring spawning periods at both early- (7 °C) and late-season (13 °C) in situ temperatures. After yolk-sac larvae had hatched, changes in yolk sac area, notochord length, body depth, somatic body area, and cases of deformities were tracked until the point-of-no-return (beyond which starvation is irreversible), also allowing somatic growth rate and yolk utilization efficiency to be estimated. We then quantified the contributions of maternal effects, incubation temperature, and seasonal effects on offspring traits. Among newly-hatched larvae, the variance in body area was explained by temperature (18 %) and seasonal (12 %) but not maternal effects. As yolk-sac larvae reached maximum size, egg size and individual females together accounted for more than two-thirds (77 %) of the variance in body area, while seasonal and temperature effects did not explain additional variance. The maternal effects were, however, unrelated to female size (total length of 26.0–31.3 cm). As a result, size classes of females matched poorly (14–36 %) with those of egg and yolk-sac larval stages, while size classes of eggs matched well with those of maximum-sized larvae (59 %) and less with those of newly-hatched larvae (36 %). Furthermore, yolk-sac larvae from later in the season or from the 13 °C treatment had a relatively longer post-hatch, free-swimming yolk-sac larval stage with respect to the whole yolk period. Yolk utilization efficiency was similar and deformity percentage was low (&lt;5.3 %) across seasonal timing and temperature treatments. In conclusion, our study revealed that the seasonal effects on offspring size at the transition period from endo- to exogenous feeding were attributed to differences in egg size, with herring females spawning earlier in the season producing larger eggs.</div></div>","PeriodicalId":50197,"journal":{"name":"Journal of Experimental Marine Biology and Ecology","volume":"589 ","pages":"Article 152109"},"PeriodicalIF":1.8,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lack of root oxygen loss from the dominant tropical Atlantic-Caribbean seagrass, Thalassia testudinum, in a highly sulfidic carbonate lagoon","authors":"N.H. Winn ,&nbsp;M.S. Koch ,&nbsp;C.J. Madden","doi":"10.1016/j.jembe.2025.152113","DOIUrl":"10.1016/j.jembe.2025.152113","url":null,"abstract":"<div><div>Although seagrasses transport leaf and water column oxygen (O₂) to belowground rhizome and root tissues, mortality events from hypoxia-driven H₂S intrusion occur, resulting in large-scale seagrass mortality events worldwide and in Florida Bay (40 km²), a large (2200 km²) seagrass-dominated estuary at the terminus of the Florida (USA) Peninsula. We examined the dominant tropical Atlantic-Caribbean seagrass <em>Thalassia testudinum</em>'s ability to transport O₂ to belowground tissues and diffuse O₂ into root rhizospheres to constrain H₂S diffusion into roots. We examined O₂ in the rhizosphere in the light and dark by deploying 2-D planar O₂ optode sensors and measured pO₂ and H₂S dynamics in rhizospheres using microsensors. Our planar optode experiments revealed no detectable root O₂ loss (ROL) to rhizospheres which remained anoxic in &gt;9 h of light (500 μmol photons m⁻² s⁻¹). Sediment O₂ and H₂S microsensor profiles of the rhizosphere and light/dark gas dynamic studies revealed that rhizospheres remained anoxic and H₂S concentrations reached ∼200 μM in the light and dark. At the same time, belowground tissue internal pO₂ was above air saturation (&gt;21 kPa) in the light (3−12<em>h</em>) and remained oxic in the dark (12<em>h</em>) with no detectable H₂S intrusion. The lack of oxic regions in rhizospheres under high internal tissue pO₂ indicate a restriction of ROL in this slow-growing species. A limitation of root-sediment gas exchange in <em>T. testudinum</em> may be an evolutionary strategy to prevent O₂ loss along deep roots and minimize H₂S intrusion in sulfidic carbonate sediments.</div></div>","PeriodicalId":50197,"journal":{"name":"Journal of Experimental Marine Biology and Ecology","volume":"589 ","pages":"Article 152113"},"PeriodicalIF":1.8,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of climate change: Temperature and salinity impacts on the early development of the sea star Echinaster (Othilia) brasiliensis","authors":"Mariana Contins ,&nbsp;Rômulo Barroso ,&nbsp;Paulo C. Paiva ,&nbsp;Carlos R.R. Ventura","doi":"10.1016/j.jembe.2025.152110","DOIUrl":"10.1016/j.jembe.2025.152110","url":null,"abstract":"<div><div>Sea stars play crucial ecological roles in the trophic web of marine communities and are good indicators of the ecosystem's health. The sea star <em>Echinaster</em> (<em>Othilia</em>) <em>brasiliensis</em> inhabits the shallow waters of the southwestern Atlantic, ranging from southern Brazil to northern Argentina, and once faced a threat due to overexploitation for the aquarium trade. In this study, we investigated the impact of high temperatures (27 °C and 31 °C) on embryos and low salinities (30 and 26) on larvae of <em>E.</em> (<em>O.</em>) <em>brasiliensis</em>, simulating conditions predicted under global climate change scenarios. Our findings reveal that elevated temperatures not only accelerated larval development but also led to increased mortality and incidence of malformations. Meanwhile, reduced salinities delayed embryo development. These results suggest that changing environmental conditions may compromise the viability of <em>E.</em> (<em>O.</em>) <em>brasiliensis</em> populations, emphasizing the need for conservation efforts to safeguard this species and others with similar reproductive traits.</div></div>","PeriodicalId":50197,"journal":{"name":"Journal of Experimental Marine Biology and Ecology","volume":"589 ","pages":"Article 152110"},"PeriodicalIF":1.8,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144134469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}