Journal of Experimental Marine Biology and Ecology最新文献

{"title":"Effects of experimental manipulations of the density of a key grazer Cymbula granatina on rocky-shore community composition in the Benguela ecosystem, South Africa","authors":"Ndiviwe G. Baliwe ,&nbsp;Maya C. Pfaff ,&nbsp;George M. Branch","doi":"10.1016/j.jembe.2024.152065","DOIUrl":"10.1016/j.jembe.2024.152065","url":null,"abstract":"<div><div>Densities of a commonly-harvested intertidal limpet <em>Cymbula granatina</em> were manipulated at two sites within a no-take marine protected area on the west coast of the Cape Peninsula in South Africa, using four treatment levels ranging from zero to maximum natural densities, together with control plots, to evaluate the effects of different harvesting intensities on rocky-shore community composition. Following removal or thinning of <em>C. granatina</em>, community composition changed: cover of corticated and ephemeral algae increased and that of encrusting corallines decreased. As limpet density fell, abundance of the brown encrusting alga <em>Pseudoralfsia verrucosa</em> increased on rock but decreased on shells. These outcomes were, however, dependent on the time frames considered, as macroalgae underwent annual cycles, and the effects of limpet removal were evident predominantly during the summer upwelling season when macroalgae proliferated. There are important management implications arising from these finding, notably that any reductions of this limpet to levels below 50 % of natural densities will profoundly alter community composition, particularly increasing macroalgae while decreasing encrusting corallines, with likely secondary effects on succession and recruitment of other species.</div></div>","PeriodicalId":50197,"journal":{"name":"Journal of Experimental Marine Biology and Ecology","volume":"581 ","pages":"Article 152065"},"PeriodicalIF":1.8,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142561304","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":"Modeling growth of multiple recruitment cohorts of Dungeness crab co-occurring within the central Salish Sea","authors":"Claire E. Cook ,&nbsp;Sarah K. Grossman,&nbsp;Julie S. Barber","doi":"10.1016/j.jembe.2024.152064","DOIUrl":"10.1016/j.jembe.2024.152064","url":null,"abstract":"<div><div>The carapace dimensions of Dungeness crab (<em>Metacarcinus magister</em>) at a given molt stage vary greatly throughout their range. Although growth models have been developed for various coastal Dungeness crab populations, the patterns of growth for juvenile Dungeness crab in the central Salish Sea remain largely unknown. Larval Dungeness crab within this area are believed to be sourced from at least two different cohorts, distinguished by timing of arrival to the region and differences in carapace dimensions. The co-occurrence of multiple cohorts complicates efforts to understand the population dynamics of this critically important species. Thus, in 2019 we began rearing larvae from two phenotypically-distinct cohorts under common conditions in the laboratory to evaluate differences in carapace dimension, intermolt period, and molt increment. Mixed-effect model analyses of growth metrics collected at the individual level revealed that cohort-of-origin had a significant effect on growth at all levels, despite the presence of individual varying growth effects. Overall, late cohort individuals were found to molt more frequently albeit at smaller increments. These individuals are projected to grow slower initially, yet they may have the ability to effectively catch up in size through additional molt events. Through this experiment, we demonstrated that cohort-specific growth schedules were maintained regardless of the influence of temperature and food availability. Our results suggest that timing of settlement and size at settlement could have an outsized effect on overall growth, potentially resulting in variable time to reach significant milestones, such as sexual maturity or harvest size.</div></div>","PeriodicalId":50197,"journal":{"name":"Journal of Experimental Marine Biology and Ecology","volume":"581 ","pages":"Article 152064"},"PeriodicalIF":1.8,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Turning the tide: Rhythmic aggregation behaviour in Anurida maritima (Collembola) is entrained by inundation","authors":"Martijn J.T.N. Timmermans ,&nbsp;Madeleine King ,&nbsp;Diane Purchase ,&nbsp;Benjamin J.A. Dickins ,&nbsp;Thomas E. Dickins ,&nbsp;Stephen Kett","doi":"10.1016/j.jembe.2024.152062","DOIUrl":"10.1016/j.jembe.2024.152062","url":null,"abstract":"<div><div>Numerous foreshore species evolved the ability to predict tidal change and adjust behaviour and metabolism accordingly. The intertidal collembolan <em>Anurida maritima</em> (Guérin-Méneville, 1836) shows endogenously controlled rhythmic changes in behaviour that anticipate the tides. Animals forage during low tide and hide in large aggregations in the substrate during high tide. Here, artificial tidal environments and time-lapse photography were used to investigate if this behaviour is responsive to key environmental cues. It is shown that the precise rhythmicity of aggregation behaviour is dependent on periodic inundations. In the absence of such inundations, rhythmic aggregation patterns dissipate and are no longer accurate after 14 days. Slowly shifting the artificial tides, showed that rhythmic aggregation behaviour in <em>A. maritima</em> is responsive and adjusts to a newly-imposed tidal regimen. This suggests that the species has the ability to synchronise to newly encountered tidal conditions under natural conditions. The findings provide a robust foundation for advancing detailed chronobiological research on <em>A. maritima</em> as a model organism to gain a deeper understanding of biological time-keeping.</div></div>","PeriodicalId":50197,"journal":{"name":"Journal of Experimental Marine Biology and Ecology","volume":"581 ","pages":"Article 152062"},"PeriodicalIF":1.8,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142434202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of season, size, and sex on tolerance of a simulated cold snap in latitudinally separated populations of the poleward-invading green porcelain crab (Petrolisthes armatus)","authors":"Kevin J. Mack ,&nbsp;Dara H. Wilber ,&nbsp;Amy E. Fowler ,&nbsp;Robert D. Podolsky","doi":"10.1016/j.jembe.2024.152063","DOIUrl":"10.1016/j.jembe.2024.152063","url":null,"abstract":"<div><div>Poleward range expansion in the green porcelain crab <em>Petrolisthes armatus</em> is thought to be associated with rising coastal water temperatures along the southern Atlantic Bight. Periods of anomalous cold temperature (“cold snaps”), however, could delay or limit further expansion, especially if northern populations are unable to adjust cold tolerance through adaptation or acclimation. We tested cold tolerance in crabs from four latitudes, from Savannah, GA to North Inlet, SC, along the species' poleward invasion front. Laboratory incubation trials were conducted in multiple seasons using adult, non-ovigerous <em>P. armatus</em> to compare cold temperature thresholds between populations, sexes, and sizes. These trials recorded temperature thresholds for induction of both sublethal (loss of righting response) and lethal effects. Following acclimation, crabs were exposed to a rapid (1 °C d⁻¹) temperature drop, modeled after water temperatures recorded during a severe winter cold snap in Charleston Harbor, SC. Crabs generally experienced mobility loss below 8 °C and mortality below 4 °C. In trials at the end of fall, crabs from the two more northern populations survived significantly longer, consistent with latitudinal differences in temperature as crabs prepared physiologically for winter. At the end of summer, crabs from the northernmost population showed greater cold resilience in both lethal and sublethal measures. At the end of spring, when animals are reproductive, there were mixed results with regard to a latitudinal pattern. When differences between sexes and sizes were significant, females were less susceptible than males and, in all but one case, smaller individuals were less susceptible than larger. In general, crabs at the start of winter maintained mobility and survived longer in the cold snap than they did when tested in the other two seasons. Although cold snaps may reduce population sizes of <em>P. armatus</em>, increased cold tolerance of more poleward populations could help to facilitate range expansion, especially if increasingly mild winter conditions move their thermal barrier toward higher latitudes.</div></div>","PeriodicalId":50197,"journal":{"name":"Journal of Experimental Marine Biology and Ecology","volume":"581 ","pages":"Article 152063"},"PeriodicalIF":1.8,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142425247","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":"Contribution of harbor seal derived nutrients to Saccharina beds assessed using δ15N","authors":"Takanori Kuribayashi ,&nbsp;Noriko Azuma ,&nbsp;Shun Ikuta ,&nbsp;Mari Kobayashi","doi":"10.1016/j.jembe.2024.152061","DOIUrl":"10.1016/j.jembe.2024.152061","url":null,"abstract":"<div><div>Although seaweed beds along the northern coast of Japan have generally deteriorated, algal beds have remained where nutrients are continuously supplied from inflows and/or animal aggregations. Here, we show that NH₄-N assimilated in kelp (<em>Saccharina angustata</em>) was derived from harbor seals (<em>Phoca vitulina stejnegeri</em>) on the reef of Cape Erimo, Hokkaido which is the largest breeding ground of this species in Japan, using isotopical and molecular techniques. Coastal waters of Erimo area generally have high nutrient concentrations in winter and low nutrient concentrations from spring to autumn. On the other hand, in the reef area of Cape Erimo where the harbor seal haul-out occurs, high concentrations of DIN and DIP, high contribution of NH₄-N to DIN continued after winter, and environmental DNA analysis revealed that seal-derived DNA was simultaneously high. The mean <em>δ</em>¹⁵N value of <em>S. angustata</em> in the reef area of Cape Erimo was 8.8 ± 0.9 ‰ (<em>n</em> = 14) which was enriched compared to the mean <em>δ</em>¹⁵N value of 6.9 ± 0.6 ‰ (<em>n</em> = 75) sampled from other coastal areas of Erimo. The mean TN content of <em>S. angustata</em> in the reef area of Cape Erimo was also 2.0 ± 0.1 % (<em>n</em> = 14), which was higher than the mean TN content of 1.6 ± 0.2 % (<em>n</em> = 75) sampled from other coastal areas of Erimo. The thallus size of <em>S. angustata</em> collected from the reef area of Cape Erimo was larger than samples collected from the other sampling points where the thallus size decreased from June to August. These results indicated that the harbor seal was a significant source of NH₄-N absorbed by kelp, acting as a vector for supplying nutrients to nutrient poor coastal ecosystem probably through excrement and detrital material from prey items. Thus we conclude that harbor seals, as the top predator of the food web, play an important role as a bottom-up control in the ecosystem.</div></div>","PeriodicalId":50197,"journal":{"name":"Journal of Experimental Marine Biology and Ecology","volume":"581 ","pages":"Article 152061"},"PeriodicalIF":1.8,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142425248","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":"Reduced predator avoidance behavior and higher exposure to thermal stress for prey during heat wave events","authors":"Wissam A. Jawad,&nbsp;Ana L. Salgado,&nbsp;Morgan W. Kelly","doi":"10.1016/j.jembe.2024.152060","DOIUrl":"10.1016/j.jembe.2024.152060","url":null,"abstract":"<div><div>Heat wave events threaten natural communities by causing mass mortalities and altering species interactions. Some organisms can use behavioral thermoregulation to avoid extreme temperatures, which may buffer them against rising incidents of heat events. While behavioral thermoregulation is effective at avoiding stressful temperatures, less is known about how it can alter other adaptive behaviors like predator avoidance. In this study, we used laboratory and outdoor mesocosm experiments to understand how behavioral thermoregulation is impacted by the presence of local predators during heat wave events, by exposing intertidal marsh periwinkles (<em>Littoraria irrorata</em>) to simulated heat waves and cues from blue crabs (<em>Callinectes sapidus</em>). We measured snail climbing height and body temperatures to disentangle snail decisions to thermoregulate or avoid predators under increasing heat stress. Our results indicate that antipredator behavior can be severely reduced in heat wave simulations, in temperatures well below the snail's upper thermal limits. Snails chose lower climbing heights that allowed them to avoid stressful temperatures but brought them within reach of subtidal predators. Thus, while heat waves may not directly kill snails because they can behaviorally thermoregulate, reduction in antipredator response can increase their encounters with subtidal predators. Additionally, when snails maintained antipredator climbing behavior in lower intensity heat wave simulations, snails occupied hotter microclimates and had higher body temperatures, indicating predator avoidance increases the temperatures snails experience. Local predator presence can increase the exposure of prey species to temperature stress during heat events, and these events can decrease the size and number of tolerable microhabitats for mobile ectotherms.</div></div>","PeriodicalId":50197,"journal":{"name":"Journal of Experimental Marine Biology and Ecology","volume":"581 ","pages":"Article 152060"},"PeriodicalIF":1.8,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142425246","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":"Differential impacts of light on coral phenotypic responses to acute heat stress","authors":"Carolina Castro-Sanguino ,&nbsp;Declan Stick ,&nbsp;Shannon Duffy ,&nbsp;Camille Grimaldi ,&nbsp;James Gilmour ,&nbsp;Luke Thomas","doi":"10.1016/j.jembe.2024.152057","DOIUrl":"10.1016/j.jembe.2024.152057","url":null,"abstract":"<div><div>Reef building corals are in global decline due to climate change and other pressures. Yet, corals show wide variation in physiological responses to heat stress. The influence of light is often dismissed when characterising variation in coral thermal tolerance. Hence, we investigate how light levels affect the photochemical and bleaching responses that typically inform coral thermal tolerance in acute heat-stress experiments using corals from two habitats. Despite natural variations in temperature regimes between sites, both coral populations responded similarly to acute heat-stress across seasons. The decline in the photochemical response (<em>Fv/Fm)</em> after heat stress (winter: +9 °C, summer: + 7.5 °C) was small on average (≤ 6 %) indicating no light stress, but consistently greater in high light (16–24 Daily light integrals, DLI) compared to low light treatments (4–11 DLI). <em>Fv/Fm</em> responses varied per genotype (+3 % to −50 % relative change) and despite small declines in <em>Fv/Fm</em>, all genotypes lost pigment in summer (10 % to 45 % relative change in tissue colour) and paled significantly irrespective of light treatment. These results highlight the complexity of the bleaching response to the primary drivers of temperature and light stress. Further research is needed to understand how light levels affect acute heat-stress responses across studies particularly when thermal tolerance is based on single phenotypes. Incorporating light as a contributing factor to thermal stress indicators will advance our understanding of coral temperature thresholds, to improve coral bleaching predictions based on ubiquitous environmental drivers.</div></div>","PeriodicalId":50197,"journal":{"name":"Journal of Experimental Marine Biology and Ecology","volume":"581 ","pages":"Article 152057"},"PeriodicalIF":1.8,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142359516","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":"Age at weaning of California sea lions depends on colony latitude","authors":"Martha P. Rosas-Hernández ,&nbsp;Claudia J. Hernández-Camacho ,&nbsp;David Aurioles-Gamboa ,&nbsp;Andrew W. Trites","doi":"10.1016/j.jembe.2024.152059","DOIUrl":"10.1016/j.jembe.2024.152059","url":null,"abstract":"<div><div>The age at which sea lions wean can vary significantly between years and among populations. It is an important life-history parameter that is influenced by environmental conditions and can drive changes in sea lion numbers. However, knowing when weaning begins and ends is difficult to determine. We developed a method (using Fourier analysis) to identify the lactation period from changes in the <em>δ</em>¹⁵N profiles of vibrissae from juvenile California sea lions—born in three colonies in Mexico. We sectioned vibrissae from 15 juvenile California sea lions (aged approximately 12 months) into 33–74 segments of similar weight. We measured <em>δ</em>¹⁵N and <em>δ</em>¹³C for each vibrissa segment and assigned dates to each one using site-specific vibrissa growth rates. We also compared the <em>δ</em>¹⁵N profiles that corresponded to the pup stage on the juvenile vibrissae with <em>δ</em>¹⁵N values of adult female vibrissae from the same colonies to validate the dietary transition from milk to fish identified by the Fourier analysis. We found that pups began supplementing their milk diet with fish at different times between colonies—ranging from 3 to 5 months old (San Esteban Island), 5–7 months old (Santa Margarita Island), and &gt; 12 months old (Los Islotes Island). All pups were &gt; 1 year old when weaned. The longer lactation period in Mexico contrasts with the shorter 10–11 months age at weaning recorded at northern colonies of California sea lions along the US Pacific coast (San Miguel Island). The difference in lactation duration among regions likely reflects latitudinal differences in marine productivity, and a lower nutrition quality of prey available to California sea lions in Mexico. Our study augments the limited knowledge of weaning in California sea lions and provides a means to determine weaning in other species.</div></div>","PeriodicalId":50197,"journal":{"name":"Journal of Experimental Marine Biology and Ecology","volume":"581 ","pages":"Article 152059"},"PeriodicalIF":1.8,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142320118","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":"Advancing DNA-based quantification of Pacific oyster larvae using a HTqPCR multi-marker approach","authors":"Dennis van der Pouw Kraan,&nbsp;Conor T. Graham,&nbsp;Fiona Kavanagh,&nbsp;Luca Mirimin","doi":"10.1016/j.jembe.2024.152055","DOIUrl":"10.1016/j.jembe.2024.152055","url":null,"abstract":"<div><div>Marine bivalves play important roles in seafood supply/security and ecosystems services, with many aquaculture practices relying on wild stocks as sources of larvae. However, rapid and effective monitoring of larvae occurrence, abundance and distribution in the marine environment can be challenging. DNA-based approaches have shown promising results in providing novel monitoring tools. However, the effect of varying sources of different DNA targets and differential representation at distinct larval stages on genetic signal (copy numbers) are poorly understood. The present study used a High-Throughout real-time quantitative PCR (HTqPCR) platform to screen multiple genetic markers (originating from nuclear, ribosomal and mitochondrial genes) in DNA extracts from known number of larvae at two developmental stages (5-day old D-shape and 20-day old pediveliger), using the Pacific oysters (<em>Magallana gigas</em>) as a model study organism. Findings showed clear trends across sources of DNA, with ribosomal markers showing significantly higher numbers of DNA copies compared to mitochondrial markers, which in turn were significantly higher than nuclear markers. A predictable relationship was found between DNA copies found in five-day old D-shape larvae and 20-day old pediveliger larvae, indicating that developmental stages have significant effects on biomass estimation using DNA-derived data. Nuclear and mitochondrial markers showed higher accuracy for estimating higher amounts of larvae, whereas ribosomal markers showed higher accuracy for estimating lower numbers of larvae, suggesting that a multi-marker approach may be most appropriate. While this study provides empirical evidence on the effect of larval stages and source of DNA in quantifying bivalve larvae, it also provides a framework (enabled by a HTqPCR platform) to assess the suitability of DNA-based approaches for the monitoring of marine larvae occurrence as well as biomass.</div></div>","PeriodicalId":50197,"journal":{"name":"Journal of Experimental Marine Biology and Ecology","volume":"581 ","pages":"Article 152055"},"PeriodicalIF":1.8,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142312388","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":"Seasonal and age-related variations in egg biomass and fatty acid composition of the common prawn Palaemon serratus","authors":"Jean-Baptiste Baudet ,&nbsp;Benoît Xuereb ,&nbsp;Gauthier Schaal ,&nbsp;Marc Rollin ,&nbsp;Agnès Poret ,&nbsp;Aurélie Duflot ,&nbsp;Léa Jeunet ,&nbsp;Enora Jaffrézic ,&nbsp;Frank Le Foll ,&nbsp;Romain Coulaud","doi":"10.1016/j.jembe.2024.152056","DOIUrl":"10.1016/j.jembe.2024.152056","url":null,"abstract":"<div><p>In crustaceans that live in seasonal environments and produce several broods during an annual cycle, there are generally seasonal patterns in reproductive traits. Thus, females are able to modulate the trade-off between per offspring investment and quantity of eggs produced in order to maximise the fitness of their offspring in response to the environmental conditions they will face during their development. We collected females of <em>Palaemon serratus</em> (<span><span>Pennant, 1777</span></span>) that had just laid eggs during the entire laying season from December 2021 to November 2022 on the coast of Seine-Maritime (France). We measured their fecundity, biomass per egg and the fatty acid composition of the eggs. The largest females laid their eggs from December to March (“winter laying”) and from May to July (“summer laying”), while the smallest females laid from January to August. Fecundity and in general biomass per egg increased with the size of the females. The FA concentration of eggs decreased throughout the laying season and winter eggs were more concentrated in essential PUFAs than summer eggs. In summer, the old females laid eggs with the same biomass as those laid by the young females, enabling them to significantly increase their relative fecundity. All these trends are consistent with the environmental conditions encountered by future embryos and larvae. These results provide a clear illustration of the maternal effects and trade-offs between reproductive traits observed in decapods.</p></div>","PeriodicalId":50197,"journal":{"name":"Journal of Experimental Marine Biology and Ecology","volume":"580 ","pages":"Article 152056"},"PeriodicalIF":1.8,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0022098124000716/pdfft?md5=606e95982f85877e96378699194219e7&pid=1-s2.0-S0022098124000716-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142162111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}