Frontiers in Marine Science最新文献_第9页

Multi-specific coral spawning and monsoonal transitions: assemblage-level observations from Baa Atoll, Maldives 多特异性珊瑚产卵和季风转变：马尔代夫Baa环礁的组合水平观测

IF 3.7 2区生物学

Frontiers in Marine Science Pub Date : 2025-09-25 DOI: 10.3389/fmars.2025.1646721

Amelia J. F. Errington, Kate Moody, Thomas Le Berre

{"title":"Multi-specific coral spawning and monsoonal transitions: assemblage-level observations from Baa Atoll, Maldives","authors":"Amelia J. F. Errington, Kate Moody, Thomas Le Berre","doi":"10.3389/fmars.2025.1646721","DOIUrl":"https://doi.org/10.3389/fmars.2025.1646721","url":null,"abstract":"Coral reefs support a vast diversity of marine life but are increasingly threatened by anthropogenic activities. To assess changes in community composition and the recovery potential of coral reefs in a changing climate, documenting sexual reproduction and understanding its environmental drivers are essential. Here, we report the exact timing and reproductive strategies for 375 individual coral colonies across 28 species from 10 genera between February 2024 and April 2025 at a near-shore reef in Baa Atoll, Maldives. We identify two peak periods of multi-specific spawning, coinciding with the monsoonal transition seasons. We note variations in spawning patterns within and between taxa, documenting the occurrence of extended breeding via asynchronous spawning of colonies within a species and split-spawning of individual colonies across lunar months and bi-annual seasons. Our results show that larger spawning events in a given month are significantly correlated with lower wind speeds, higher sea surface temperatures, and higher levels of solar insolation. These findings highlight the influence of environmental cues on the timing and extent of coral reproduction and provide the first detailed spawning records for several non-Acropora genera in the Maldives, contributing a critical baseline for future research.","PeriodicalId":12479,"journal":{"name":"Frontiers in Marine Science","volume":"31 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145141537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

SalaciaML-2-Arctic — a deep learning quality control algorithm for Arctic Ocean temperature and salinity data SalaciaML-2-Arctic -一个北冰洋温度和盐度数据的深度学习质量控制算法

IF 3.7 2区生物学

Frontiers in Marine Science Pub Date : 2025-09-25 DOI: 10.3389/fmars.2025.1661208

Sebastian Mieruch, Gastón Kreps, Mohamed Chouai, Felix Reimers, Myriel Vredenborg, Benjamin Rabe, Sandra Tippenhauer, Axel Behrendt

{"title":"SalaciaML-2-Arctic — a deep learning quality control algorithm for Arctic Ocean temperature and salinity data","authors":"Sebastian Mieruch, Gastón Kreps, Mohamed Chouai, Felix Reimers, Myriel Vredenborg, Benjamin Rabe, Sandra Tippenhauer, Axel Behrendt","doi":"10.3389/fmars.2025.1661208","DOIUrl":"https://doi.org/10.3389/fmars.2025.1661208","url":null,"abstract":"We have extended a classical quality control (QC) algorithm by integrating a deep learning neural network, resulting in SalaciaML-2-Arctic, a tool for automated QC of Arctic Ocean temperature and salinity profile data. The neural network component was trained on the Unified Database for Arctic and Subarctic Hydrography (UDASH), which has been quality-controlled and labeled by expert oceanographers. SalaciaML-2-Arctic successfully reproduces human expertise by correcting misclassifications made by the classical algorithm, reducing False Negatives (samples incorrectly classified as “bad”) by 96% for temperature and 99% for salinity. When used in combination with a visual post-QC by human experts, it achieves a workload reduction of approximately 60% for temperature and 85% for salinity. All code and data required to reproduce the analysis or apply the method to other datasets are openly available via PANGAEA and GitHub. Moreover, SalaciaML-2-Arctic is accessible as a browser-based application at https://mvre.autoqc.cloud.awi.de, enabling its use without software installation or programming knowledge.","PeriodicalId":12479,"journal":{"name":"Frontiers in Marine Science","volume":"18 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145141551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the implementation of the provisions regarding environmental impact assessments under the BBNJ agreement 关于执行《滨海保护区协定》下有关环境影响评估的规定

IF 3.7 2区生物学

Frontiers in Marine Science Pub Date : 2025-09-25 DOI: 10.3389/fmars.2025.1657649

Chuanliang Wang, Yuxin Li

{"title":"On the implementation of the provisions regarding environmental impact assessments under the BBNJ agreement","authors":"Chuanliang Wang, Yuxin Li","doi":"10.3389/fmars.2025.1657649","DOIUrl":"https://doi.org/10.3389/fmars.2025.1657649","url":null,"abstract":"The Agreement under the United Nations Convention on the Law of the Sea on the conservation and sustainable use of marine biological diversity of areas beyond national jurisdiction (BBNJ Agreement) was adopted on June 19, 2023. Part IV of the BBNJ Agreement focuses on the environmental impact assessments (EIAs) in areas beyond national jurisdiction (ABNJ) from the following aspects: objectives and the general obligation of Parties to conduct EIAs, the relationship between BBNJ Agreement and EIA processes under relevant legal instruments and frameworks and relevant bodies, the EIA process, monitoring and review mechanisms, the function of the Scientific and Technical Body, and Strategic Environment Assessment. However, to facilitate the adoption of the Agreement, many compromises were made by the Parties. As a package agreement, the provisions regarding EIAs under the BBNJ Agreement are ambiguous and contain gaps. Moreover, during the implementation of the Agreement, different Parties have different interests and positions, which poses challenges for implementing the provisions. For example, environmental NGOs advocate for the strict application of the precautionary principle, which necessitates demonstrating the absence of significant environmental impact before the approval of potentially harmful activities. In contrast, major fishing nations prefer to rely on existing regional management frameworks to prevent redundant assessments and avoid additional economic burdens. In this regard, attention should be given to the overall interests and needs of the international community, and the effective implementation of the provisions regarding EIAs under the Agreement should be promoted through refining the regulations of the Agreement, establishing cooperative mechanisms, and creating frameworks for shared benefits.","PeriodicalId":12479,"journal":{"name":"Frontiers in Marine Science","volume":"100 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145140682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessing the risks of dietary quercetin supplementation in red-spotted grouper (Epinephelus akaara): effects on growth performance, antioxidant capacity, lipid level, and intestinal microbiome 评估红斑石斑鱼（Epinephelus akaara）饲料中添加槲皮素的风险：对生长性能、抗氧化能力、脂质水平和肠道微生物群的影响

IF 3.7 2区生物学

Frontiers in Marine Science Pub Date : 2025-09-25 DOI: 10.3389/fmars.2025.1678527

Yuan Hu, An Li, Xinbin Shao, Jie Zhu, Jingbo Cai, Jianzhong Ma, Rongmao Lu

{"title":"Assessing the risks of dietary quercetin supplementation in red-spotted grouper (Epinephelus akaara): effects on growth performance, antioxidant capacity, lipid level, and intestinal microbiome","authors":"Yuan Hu, An Li, Xinbin Shao, Jie Zhu, Jingbo Cai, Jianzhong Ma, Rongmao Lu","doi":"10.3389/fmars.2025.1678527","DOIUrl":"https://doi.org/10.3389/fmars.2025.1678527","url":null,"abstract":"Quercetin, a naturally occurring plant flavonoid, is used in aquaculture feeds to affect fish health. This study evaluated the effects of dietary quercetin supplementation on the growth performance, antioxidant capacity, lipid levels, and gut microbiota in juvenile Epinephelus akaara. Fish were reared in a controlled recirculating aquaculture system and received dietary quercetin for 8 weeks at five levels: 0, 181, 362, 544, and 725 mg/kg. Growth metrics, physiological and biochemical parameters, antioxidant enzyme activities, and intestinal microbial communities were assessed using standard analytical protocols. Quercetin supplementation at 362–544 mg/kg significantly increased the weight gain rate and the specific growth rate. It elevated the activities of key antioxidant enzymes, including superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx), while reducing malondialdehyde (MDA) levels. Supplementation of quercetin at 181–725 mg/kg lowered the levels of cholesterol (TC) in liver and muscle as well as triglyceride in liver. It also increased gut microbiota diversity and enriched beneficial taxa, such as Cetobacterium, Romboutsia, and Turicibacter, which were positively correlated with physiological resilience. Cetobacterium was correlated significantly negative with cholesterol (r &lt; −0.6, P &lt; 0.01). These findings suggest that quercetin is a promising functional feed additive for improving health and aquaculture performance in red-spotted grouper.","PeriodicalId":12479,"journal":{"name":"Frontiers in Marine Science","volume":"99 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145141549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biogeographic variation in the impact of predation and secondary foundation species on the recruitment and growth of sessile mangrove prop root communities 捕食和次生基础物种对红树林支柱根群落补充和生长影响的生物地理变异

IF 3.7 2区生物学

Frontiers in Marine Science Pub Date : 2025-09-25 DOI: 10.3389/fmars.2025.1599285

Jessene Aquino-Thomas, Shalondria J. Sears, C. Edward Proffitt

{"title":"Biogeographic variation in the impact of predation and secondary foundation species on the recruitment and growth of sessile mangrove prop root communities","authors":"Jessene Aquino-Thomas, Shalondria J. Sears, C. Edward Proffitt","doi":"10.3389/fmars.2025.1599285","DOIUrl":"https://doi.org/10.3389/fmars.2025.1599285","url":null,"abstract":"Predation and secondary foundation species play crucial roles in structuring sessile mangrove prop root communities. However, their relative importance and their interactions across biogeographic gradients remain poorly understood. This study investigated the impact of predation and secondary foundation species on mangrove prop root epibiont assemblages along a latitudinal gradient in Florida. Predator exclusion treatments were deployed at four sites spanning tropical to temperate zones, and community development was monitored over 6 months. The results showed that the effects of predation shifted with latitude, from increasing the species richness in the south while reducing it in the north. Secondary foundation species, such as sponges, oysters, and barnacles, generally outcompeted other species for space in the early colonization stages, but tended to increase biodiversity when space was not limiting. Secondary foundation species also exhibited context-dependent associations with species richness across the latitudinal gradient. Sponges and oysters tended to enhance the species richness under reduced predation pressure, while barnacles generally had negative effects at higher latitudes. The multivariate analyses revealed that the interaction between predation and latitude explained more variation in the community structure than predation alone, and secondary foundation species contributed significantly to these patterns. The findings support the predation hypothesis and facilitation by secondary foundation species in shaping mangrove prop root community shifts across biogeographic gradients, providing insights into the complex interactions structuring mangrove epibiont communities.","PeriodicalId":12479,"journal":{"name":"Frontiers in Marine Science","volume":"4 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145140683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A large temperature-controlled static and dynamic mechanical testing apparatus on marine soil-structure interfaces for marine engineering 一种用于海洋工程的大型温控海土-结构界面静动态力学试验装置

IF 3.7 2区生物学

Frontiers in Marine Science Pub Date : 2025-09-25 DOI: 10.3389/fmars.2025.1671265

Bowen Yang, Kaiwei Xu, Kun Tan, Peng Cui, Xianhui Feng

{"title":"A large temperature-controlled static and dynamic mechanical testing apparatus on marine soil-structure interfaces for marine engineering","authors":"Bowen Yang, Kaiwei Xu, Kun Tan, Peng Cui, Xianhui Feng","doi":"10.3389/fmars.2025.1671265","DOIUrl":"https://doi.org/10.3389/fmars.2025.1671265","url":null,"abstract":"Marine soil–structure interfaces are commonly encountered in marine engineering, where they are inevitably subjected to temperature variations and complex stress conditions, including static, dynamic, and creep loads. However, limited studies have addressed the temperature-dependent mechanical behavior of marine soil–structure interfaces under various loading scenarios. This study introduces a self-developed multifunctional large-scale shear apparatus that enables temperature-controlled testing of marine soil interfaces with various structural materials, including concrete, polymer grids, and polymer layers. The apparatus supports static, dynamic, and creep shear testing under precisely controlled thermal conditions. A series of shear tests were conducted on marine soil–concrete, marine soil–polymer grid, and marine soil–polymer layer interfaces to verify the device’s performance. The test results demonstrate that the apparatus can accurately and reliably capture the mechanical responses of marine soil–structure interfaces under different temperatures and loading modes. Furthermore, the results highlight the significant influence of temperature on the shear behavior of these interfaces, emphasizing the necessity of developing such equipment. The findings offer essential insights for the design, evaluation, and long-term stability of marine engineering structures, supporting the development of practical ocean solutions.","PeriodicalId":12479,"journal":{"name":"Frontiers in Marine Science","volume":"2 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145140681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantifying wave attenuation by seagrass: a comprehensive review of assessment techniques 海草量化波浪衰减：评估技术的综合综述

IF 3.7 2区生物学

Frontiers in Marine Science Pub Date : 2025-09-25 DOI: 10.3389/fmars.2025.1620592

Xihang Xu, M. Salauddin

{"title":"Quantifying wave attenuation by seagrass: a comprehensive review of assessment techniques","authors":"Xihang Xu, M. Salauddin","doi":"10.3389/fmars.2025.1620592","DOIUrl":"https://doi.org/10.3389/fmars.2025.1620592","url":null,"abstract":"Seagrasses, often referred to as ecosystem engineers, play a vital role in shallow coastal waters worldwide. They can not only provide key ecological benefits such as ecosystem restoration and carbon sequestration, but also offer significant engineering benefits, including sediment stabilization and wave energy dissipation. Despite its potential biological benefits, the mechanisms behind seagrass-induced wave attenuation remain inadequately understood. Furthermore, inconsistencies in the recorded metrics complicate the comparison of findings across various experimental studies. This study aims to address these challenges by thoroughly examining six key parameters for assessing the wave attenuation performance of seagrass meadows: wave energy dissipation, drag coefficient, wave transmission coefficient, wave attenuation coefficient, wave-induced flow velocity, and turbulent kinetic energy. By systematically reviewing the most relevant lab-based experimental studies conducted from 2000 to 2024, this study summarises the developments, applications, and performance of these key parameters in analysing seagrass-induced wave dissipation, discussing the physical mechanism behind. The effects of currents on seagrass-induced wave attenuation performance are also investigated. The findings of this work provide a foundation for conducting a unified framework to assess the impact of canopy features and wave characteristics on seagrass-induced wave attenuation, further contributing to the development of coastal protection policies in combination with seagrass restoration guidance.","PeriodicalId":12479,"journal":{"name":"Frontiers in Marine Science","volume":"172 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145141538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Acoustic parameter variation and emission patterns in franciscana dolphin (Pontoporia blainvillei) clicking behavior at high frequency 白海豚高频咔哒声参数变化及发射模式

IF 3.7 2区生物学

Frontiers in Marine Science Pub Date : 2025-09-24 DOI: 10.3389/fmars.2025.1641888

Lis Bittencourt, Rafael R. Carvalho, Karina Pereira, Elitieri B. Santos-Neto, Jose Lailson-Brito, Tatiana L. Bisi, Alexandre F. Azevedo

{"title":"Acoustic parameter variation and emission patterns in franciscana dolphin (Pontoporia blainvillei) clicking behavior at high frequency","authors":"Lis Bittencourt, Rafael R. Carvalho, Karina Pereira, Elitieri B. Santos-Neto, Jose Lailson-Brito, Tatiana L. Bisi, Alexandre F. Azevedo","doi":"10.3389/fmars.2025.1641888","DOIUrl":"https://doi.org/10.3389/fmars.2025.1641888","url":null,"abstract":"Franciscana dolphins are small odontocetes that produce narrow-band high-frequency echolocation clicks. Autonomous acoustic monitoring and field survey acoustic sampling were used to record franciscana dolphins in Ilha Grande Bay, Brazil. Clicking sequences were automatically detected and analyzed, and then manually classified into different types; acoustic parameters from individual clicks were extracted. A total of 12505 clicks were detected, 152 clicking sequences were analyzed, of which 43 were click trains and 109 were click packets. Considering all clicks, they occurred from 88.7 kHz to 250 kHz, with a mean peak frequency of 132.4 ± 6.8 kHz. Click trains were longer than click packets, with larger inter-click intervals and mean peak frequencies of 123.6 ± 16.4 kHz and 119.9 ± 15.0 kHz, respectively. Franciscana dolphins emitted different types of clicking sequences. The use of patterned clicks by franciscana dolphins may be an important communication feature at very high frequencies.","PeriodicalId":12479,"journal":{"name":"Frontiers in Marine Science","volume":"95 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145133778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Are fish larvae contaminated before they start eating? First evidence of microplastic contamination in the yolk-sac of wild fish larvae 幼鱼在进食前是否受到污染？野生鱼类幼鱼卵黄囊中微塑料污染的首个证据

IF 3.7 2区生物学

Frontiers in Marine Science Pub Date : 2025-09-24 DOI: 10.3389/fmars.2025.1645179

Sabrina M. Rodrigues, Francisca Espincho, Michael Elliott, C. Marisa R. Almeida, Sandra Ramos

{"title":"Are fish larvae contaminated before they start eating? First evidence of microplastic contamination in the yolk-sac of wild fish larvae","authors":"Sabrina M. Rodrigues, Francisca Espincho, Michael Elliott, C. Marisa R. Almeida, Sandra Ramos","doi":"10.3389/fmars.2025.1645179","DOIUrl":"https://doi.org/10.3389/fmars.2025.1645179","url":null,"abstract":"Microplastics (MPs) ingestion in wild fish during the early stages remains a field with scarce information and contradictory findings in laboratory studies. This study evaluated whether MPs contamination of larval fish stages begins at the commencement of the exogenous feeding phase and whether different species and ontogenetic development stages exhibit different profiles of MPs contamination. We assessed, for the first time, the presence of MPs in the larval stages of two species: the European sardine (Sardina pilchardus), a marine migrant species, and the common goby (Pomatoschistus microps), an estuarine resident species, inhabiting the Douro Estuary (NW Portugal). In both species, MPs were found even in the yolk-sac stage, when fish larvae still have endogenous feeding and do not actively prey on other organisms. This illustrates that fish larvae are already contaminated at a stage where the mouth is still not fully open, further indicating that MPs were not actively ingested. MPs contamination did not vary between species or throughout the ontogenetic development stages, showing similar levels of contamination and MPs contamination profiles. This novel study provides relevant insights into MPs contamination processes, showing that MPs contamination can occur early in the life cycle of fishes, from hatching onwards. Furthermore, the presence of MPs in fish larvae appears to be more dependent on the MPs that are in higher abundance in the surrounding water than fish larvae preferences or ecological guild, physical characteristics, or even the ontogenetic developmental stage.","PeriodicalId":12479,"journal":{"name":"Frontiers in Marine Science","volume":"3 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145133775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Plasticity under pressure: the influence of shear stress on larval echinoid morphogenesis 压力下的可塑性：剪切应力对棘卵类幼虫形态发生的影响

IF 3.7 2区生物学

Frontiers in Marine Science Pub Date : 2025-09-24 DOI: 10.3389/fmars.2025.1671120

Maggie Dakin, Joshua Patterson, Alex Petrosino, Jessica Smith, Aaron Pilnick

{"title":"Plasticity under pressure: the influence of shear stress on larval echinoid morphogenesis","authors":"Maggie Dakin, Joshua Patterson, Alex Petrosino, Jessica Smith, Aaron Pilnick","doi":"10.3389/fmars.2025.1671120","DOIUrl":"https://doi.org/10.3389/fmars.2025.1671120","url":null,"abstract":"IntroductionIndividuals of some marine species can modify their phenotype in response to environmental factors, allowing them to adapt to new conditions throughout their ontogeny. Echinoids represent an ecologically significant taxon that exhibit such plasticity throughout a biphasic life history in response to known biotic and abiotic factors. Preliminary lab-based observations have suggested that morphological traits, specifically pluteal arm length, may be influenced by physical processes such as hydrodynamic flow during planktotrophic larval development. This dynamic remains understudied despite potentially critical demographic implications.MethodsHere, we tested the effect of continuous exposure to different shear stress treatments on larval morphology and life history timing shifts in three co-occurring species: Lytechinus variegatus, Tripneustes ventricosus, and Diadema antillarum.ResultsBoth T. ventricosus and D. antillarum displayed significantly longer postoral arms and increased percent metamorphic competence in response to greater shear. Treatment effects were not observed for L. variegatus.DiscussionThese findings represent the first observation of morphogenic plasticity in response to a hydrodynamic factor for larval echinoderms. Species-specific effects revealed a plasticity continuum which may be mediated by phylogeny, ecological niche, and/or functional morphology. This dynamic response offers insights into larval dispersal and recruitment potential, adult distribution, and the boom-and-bust cycles characteristic of ecologically relevant echinoid populations.","PeriodicalId":12479,"journal":{"name":"Frontiers in Marine Science","volume":"17 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145133774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0