Marine Ecology-An Evolutionary Perspective最新文献

Impact of Drought-Induced Hydrological Changes on Copepod Communities in an Amazonian Estuary 干旱水文变化对亚马逊河口桡足类群落的影响

IF 1.5 4区生物学

Marine Ecology-An Evolutionary Perspective Pub Date : 2025-06-05 DOI: 10.1111/maec.70027

Marcela Pimentel de Andrade, André Magalhães, Natália do Socorro da Silva Sousa, Luci Cajueiro Carneiro Pereira, Rauquírio Marinho da Costa

{"title":"Impact of Drought-Induced Hydrological Changes on Copepod Communities in an Amazonian Estuary","authors":"Marcela Pimentel de Andrade, André Magalhães, Natália do Socorro da Silva Sousa, Luci Cajueiro Carneiro Pereira, Rauquírio Marinho da Costa","doi":"10.1111/maec.70027","DOIUrl":"https://doi.org/10.1111/maec.70027","url":null,"abstract":"<div>\u0000 \u0000 The influence of the drought event on the structure and distribution of the copepod community was investigated in the Caeté Estuary, northeast of Pará, Brazil, through field surveys performed in three sectors of the estuary from June/2013 to June/2014. The occurrence of a dry event in June/2013 was marked by low rainfall and consequently by lower river runoff, increased seasonal average salinity (19.71 ± 5.64), dissolved nutrient concentrations, and high phytoplankton biomass (chlorophyll-a). These conditions allowed a substantial increase in copepod density, particularly toward the mouth of the estuary, which was dominated by estuarine and coastal species such as Pseudodiaptomus richardi, Oithona hebes, Acartia lilljeborgii, Acartia tonsa, and Paracalanus quasimodo, which presented higher densities in Jun/2013 than those obtained during the normal precipitation period (June/2014). Marine species allowed a slight increase in diversity and richness, possibly caused by the increased recruitment rate from adjacent coastal waters. Results highlight that salinity, driven by precipitation, regulates copepod distribution and composition, with droughts affecting estuarine trophic dynamics in the Caeté Estuary. Future studies focused on conservation efforts must consider connectivity between resident and transitory species while addressing trophic interactions like predation and food availability. Adaptive management strategies that integrate these factors can help sustain estuarine ecosystems against climate anomalies and anthropogenic pressures in tropical estuarine systems with similar characteristics in the Amazon region and worldwide.\u0000 </div>","PeriodicalId":49883,"journal":{"name":"Marine Ecology-An Evolutionary Perspective","volume":"46 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Deep-Sea Coral Abundance, Distribution, and Community Structure on Seafloor Features Across a Broad Depth Gradient in North-Central California National Marine Sanctuaries 加州中北部国家海洋保护区的深海珊瑚丰度、分布和群落结构在海底特征上的广泛深度梯度

IF 1.5 4区生物学

Marine Ecology-An Evolutionary Perspective Pub Date : 2025-06-01 DOI: 10.1111/maec.70022

Kaitlin Graiff, Danielle Lipski, Jan Roletto, Gary C. Williams, M. Elizabeth Clarke, Thomas E. Laidig

{"title":"Deep-Sea Coral Abundance, Distribution, and Community Structure on Seafloor Features Across a Broad Depth Gradient in North-Central California National Marine Sanctuaries","authors":"Kaitlin Graiff, Danielle Lipski, Jan Roletto, Gary C. Williams, M. Elizabeth Clarke, Thomas E. Laidig","doi":"10.1111/maec.70022","DOIUrl":"https://doi.org/10.1111/maec.70022","url":null,"abstract":"Patterns in deep-sea coral (DSC) diversity and distribution are described for a range of benthic habitat features including offshore banks, continental shelf and slope, and submarine canyons in three national marine sanctuaries off the coast of North-central California. Sixteen visual datasets of DSC observations collected using underwater vehicles from 2010 to 2021 across a wide depth range of 35–3317 m were analyzed for zonation by depth and seafloor feature type. A total of 36,670 DSC from at least 20 families were documented in the study area. Taxa displayed patterns corresponding to depth and seafloor feature type, such as broad distribution across multiple depths and features or narrower depth range and fewer features. Significant divergence in DSC assemblage diversity and density occurred between banks and canyons, representing the shallowest and deepest depth extents in the study area. One species of Stylasteridae coral primarily inhabited banks and accounted for the highest density of all DSC taxa. Diversity of soft corals and gorgonians (Octocorallia) and black corals (Antipatharia) was greatest on the slope and canyons. Other octocorals such as sea pens (Pennatuloidea) collectively spanned the largest depth ranges throughout the study area on all features other than banks. Comprehensively describing DSC communities in relation to seafloor features throughout an extensive depth range may have applications to other regions globally where similar habitats and DSC families are found. Our growing understanding of taxonomic diversity and zonation adds to existing knowledge of depth and geographic distributions on the U.S. West Coast and provides a crucial foundation for effective management and conservation efforts for DSC communities.","PeriodicalId":49883,"journal":{"name":"Marine Ecology-An Evolutionary Perspective","volume":"46 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/maec.70022","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144190703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Boring Pattern of Isopods in the Intertidal Hard Mud Substratum of Gulf of Khambhat, With Two New Records From Gujarat Coast 甘巴特湾潮间带硬泥地层等足类的钻孔模式，并附古吉拉特邦海岸的两个新记录

IF 1.5 4区生物学

Marine Ecology-An Evolutionary Perspective Pub Date : 2025-05-29 DOI: 10.1111/maec.70024

Vaishali Prajapat, Kauresh D. Vachhrajani

{"title":"Boring Pattern of Isopods in the Intertidal Hard Mud Substratum of Gulf of Khambhat, With Two New Records From Gujarat Coast","authors":"Vaishali Prajapat, Kauresh D. Vachhrajani","doi":"10.1111/maec.70024","DOIUrl":"https://doi.org/10.1111/maec.70024","url":null,"abstract":"<div>\u0000 \u0000 The study of the burrowing and boring pattern is an important bioturbatory behavioral display that provides information about interactions of animals with their surrounding factors and habitat selection preferences. Previous studies have explored the boring activities of sphaeromatid isopods in a variety of substrates, including wood, polystyrene, and rock, across different regions worldwide. However, no previous reports have been documented on the boring pattern of isopods in hard mud substratum. Present studies were carried out on the silt-clay rich hard substratum of coastal mudflats at Kamboi, the northern innermost region of the Gulf of Khambhat, Gujarat. This habitat is selectively preferred by the isopod Sphaeroma annandalei Stebbing 1911, which is indicated by its abundance. To decipher the boring patterns, we examined the sediment blocks during low tides, took multidirectional sections of the exposed regions, and photographed the boring patterns. It showed that there were incidences of the bores of different sizes crossing each other. We primarily interpreted it as the borings of younger and older isopods. However, to further confirm, resin casting was done, which gave us a complex network of interconnected borings. It clearly exposed, for the first time, the continuous interconnected burrows of different sizes of individuals (0.56 mm to 4.75 mm) of S. annandalei in hard mudflat habitat. The study has recorded the presence of two species, S. annandalei and Cirolana willeyi Stebbing 1904, for the first time from Gujarat.\u0000 </div>","PeriodicalId":49883,"journal":{"name":"Marine Ecology-An Evolutionary Perspective","volume":"46 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Fishers as Potential Dispersal Agents for Corals: Balancing the Impact of Small-Scale Fisheries on a Pillow Coral Bed 渔民作为珊瑚的潜在扩散媒介：平衡小型渔业对枕状珊瑚床的影响

IF 1.5 4区生物学

Marine Ecology-An Evolutionary Perspective Pub Date : 2025-05-28 DOI: 10.1111/maec.70025

Kostas Ganias

{"title":"Fishers as Potential Dispersal Agents for Corals: Balancing the Impact of Small-Scale Fisheries on a Pillow Coral Bed","authors":"Kostas Ganias","doi":"10.1111/maec.70025","DOIUrl":"https://doi.org/10.1111/maec.70025","url":null,"abstract":"The Mediterranean Sea is home to the endemic pillow coral, Cladocora caespitosa, which thrives on stony or rocky substrates to form coral beds or banks. A C. caespitosa hotspot habitat was identified in the eastern Thermaikos Gulf, with densely populated, large colonies of over 0.5 m in diameter. Local small-scale fishers intentionally avoid operating in this area in order to prevent damage to their nets. The substrate in the adjacent fishing ground consists of a heterogeneous assemblage of soft substrates, mainly sandy sediments and patches of seagrass meadows, and scattered colonies of C. caespitosa. Nonetheless, the colonies were shown to be fragmented, and most were smaller than in the hotspot area. This indicates that this area is not the native environment of C. caespitosa, but rather transported from the hotspot region. Static nets, primarily trammel nets but also gillnets, were shown to capture C. caespitosa colonies, which are subsequently discarded by fishers and returned to the seafloor. It is thus anticipated that small-scale fishers contribute to the spread of the C. caespitosa population and the transfer from the hotspot area to the entire sandy zone, serving as potential dispersal agents. Indeed, the majority of C. caespitosa in the sandy region had living polyps present on them, and in many instances, the colonies attained the characteristic spherical shape. The role of small-scale fishers as dispersal agents of C. caespitosa colonies closely resembles the fragment-based transplant approach, applicable for the restoration of coral banks.","PeriodicalId":49883,"journal":{"name":"Marine Ecology-An Evolutionary Perspective","volume":"46 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/maec.70025","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Estimation of Foraging Grounds Based on Morphological and Molecular Analyses of Green Turtle Diets 基于绿海龟食料形态和分子分析的觅食地估算

IF 1.5 4区生物学

Marine Ecology-An Evolutionary Perspective Pub Date : 2025-05-25 DOI: 10.1111/maec.70026

Rina Sasamori, Satomi Kondo, Chiyo Kitayama, Kazuki Sadakane, Hidekazu Suzuki, Mitsunobu Kamiya

{"title":"Estimation of Foraging Grounds Based on Morphological and Molecular Analyses of Green Turtle Diets","authors":"Rina Sasamori, Satomi Kondo, Chiyo Kitayama, Kazuki Sadakane, Hidekazu Suzuki, Mitsunobu Kamiya","doi":"10.1111/maec.70026","DOIUrl":"https://doi.org/10.1111/maec.70026","url":null,"abstract":"<div>\u0000 \u0000 Green turtles, Chelonia mydas, migrate to the Ogasawara Islands for breeding once every few years. However, the foraging grounds of these turtles prior to their visit to the Ogasawara Islands remain uncertain. In this study, we examined the genetic similarity between macroalgal specimens collected from various coastal regions and macroalgal fragments in the gut contents of green turtles visiting the Ogasawara Islands in order to estimate their foraging grounds. A total of 4 green, 13 brown, and 3 red algal species were identified from the gut contents of 62 adult green turtles. Macroalgal species composition differed by year of green turtle harvest, but not by sex of green turtle. Grateloupia angusta and Besa paradoxa were the most abundant temperate species obtained from the intestines, but they are rarely distributed around the Ogasawara Islands. Therefore, the cox1 gene and/or cox2-cox3 spacer region, which are useful to detect intraspecific genetic diversity, were analyzed for the two algal species obtained from the intestines and collected from various sea coasts. Four haplotypes of G. angusta recovered from the intestines were identical to specimens from some Japanese Pacific coasts and Korean islands. In contrast, a single haplotype of B. paradoxa retrieved from the intestines was identical to that of specimens from Enoshima, which is close to Tokyo. These data suggest that green turtles may have come to the Ogasawara Islands from different foraging grounds depending on the year. Determining the origin of green turtle diets is important to better understand the migratory connectivity between grazing and breeding grounds.\u0000 </div>","PeriodicalId":49883,"journal":{"name":"Marine Ecology-An Evolutionary Perspective","volume":"46 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Current Wild Population Status of Protected Mother-Of-Pearl Oyster Pinctada mazatlanica in Mexican Pacific Reefs 墨西哥太平洋珊瑚礁受保护珍珠贝种群现状

IF 1.5 4区生物学

Marine Ecology-An Evolutionary Perspective Pub Date : 2025-05-23 DOI: 10.1111/maec.70007

A. Beylán-González, J. Gómez-Gutiérrez, L. Huato-Soberanis, E. González-Rodríguez, C. Sánchez

{"title":"Current Wild Population Status of Protected Mother-Of-Pearl Oyster Pinctada mazatlanica in Mexican Pacific Reefs","authors":"A. Beylán-González, J. Gómez-Gutiérrez, L. Huato-Soberanis, E. González-Rodríguez, C. Sánchez","doi":"10.1111/maec.70007","DOIUrl":"https://doi.org/10.1111/maec.70007","url":null,"abstract":"<div>\u0000 \u0000 The mother-of-pearl oyster Pinctada mazatlanica (Hanley, 1856) obtained full protection from the Mexican government after the fishery collapse in 1939. P. mazatlanica was listed in 1994 as a threatened species in the “Special Protection” category. However, no quantitative assessment of the state of the population has been done so far. Our study is the most comprehensive summer interannual monitoring program conducted so far in the Eastern Pacific using SCUBA diving censuses conducted in 314 sampling sites located along the Mexican Pacific between 1998 and 2021. We propose the hypothesis that although P. mazatlanica had full protection with the NOM-059, global warming reported in northwest Mexico has caused a decrease in the population abundance along the Pacific coast, which may render the protection effort useless. However, we demonstrate that P. mazatlanica was the numerically dominant macro–mollusk and occupied the 18th ranked abundance place compared with the entire epibenthic macroinvertebrate fauna that included 241 species at rocky reefs of the Mexican Pacific, particularly abundant along the peninsular coast of the Gulf of California. Population frequency size distribution of P. mazatlanica dorsoventral length showed positive population growth and latitudinally similar dorsoventral length range (2–30 cm, mode 14 cm when protandry takes place) along the peninsular coast of the Gulf of California, indicating a stable population in time and space. We observed high abundances in the central Gulf of California (Baja Peninsula), mainly from Loreto to La Paz. We conclude that P. mazatlanica is a stable and healthy population along the rocky reefs of the peninsular coast of the Gulf of California even during prolonged anomalous warm events in 2013–2016. Therefore, the present protection status should be modified accordingly.\u0000 </div>","PeriodicalId":49883,"journal":{"name":"Marine Ecology-An Evolutionary Perspective","volume":"46 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144126022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 Scavenging Behavior of Cyclammina cancellata (Foraminifera, Rhizaria) on a Crustacean Carcass: Amino Acid Nitrogen Isotope and Microbiome Analyses 有孔虫，根瘤菌对甲壳类动物尸体的清除行为：氨基酸氮同位素和微生物组分析

IF 1.5 4区生物学

Marine Ecology-An Evolutionary Perspective Pub Date : 2025-05-21 DOI: 10.1111/maec.70023

Hidetaka Nomaki, Yoshiyuki Ishitani, Satoshi Okada, Noriyuki Isobe, Naoto F. Ishikawa

{"title":"A Scavenging Behavior of Cyclammina cancellata (Foraminifera, Rhizaria) on a Crustacean Carcass: Amino Acid Nitrogen Isotope and Microbiome Analyses","authors":"Hidetaka Nomaki, Yoshiyuki Ishitani, Satoshi Okada, Noriyuki Isobe, Naoto F. Ishikawa","doi":"10.1111/maec.70023","DOIUrl":"https://doi.org/10.1111/maec.70023","url":null,"abstract":"Cyclammina cancellata is a common benthic foraminifer found at bathyal depths across the world's oceans. Despite its important role in deep-sea food webs and biogeochemical cycles, the feeding habits of this species remain poorly understood. In this study, we document an aggregation of C. cancellata on a crustacean carcass at a depth of 750 m in the upper bathyal zone of Sagami Bay, Japan. Over 40 specimens of C. cancellata were observed on a crustacean carcass approximately 3 cm in length, with few other foraminiferal species, such as Lobatula wuellestorfi and Globobulimina affinis, present. To investigate whether the carcass served as a food source, we employed two recently developed techniques: individual amino acid nitrogen isotope analysis and metabarcoding. The nitrogen isotopic compositions of phenylalanine, which is an indicator of the primary producer in the food source, were similar across C. cancellata individuals and the carcass, suggesting that C. cancellata derives its nutrition from the carcass. Based on microbiome analyses of the crustacean carcass and the foraminifers, some potential endobiotic bacteria present in the foraminifer may be responsible for the degradation of the carcass. These findings suggest that C. cancellata may scavenge animal carcasses that fall to the deep-sea floor, while also acting as a deposit feeder when carcasses are unavailable. Given its wide geographic distribution and high individual and population biomass, C. cancellata likely plays a significant role in the degradation of both photosynthetic and non-photosynthetic organic matter that reaches the deep-sea floor.","PeriodicalId":49883,"journal":{"name":"Marine Ecology-An Evolutionary Perspective","volume":"46 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/maec.70023","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative Metabarcoding Analysis of Bacterial Communities and Functional Profiles in the Seaweed and Mangrove Blue Carbon Ecosystems of Goa, India 印度果阿邦海藻和红树林蓝碳生态系统细菌群落和功能特征的比较元条形码分析

IF 1.5 4区生物学

Marine Ecology-An Evolutionary Perspective Pub Date : 2025-05-16 DOI: 10.1111/maec.70020

Ashutosh Shankar Parab, Mayukhmita Ghose, Vitasta Jad, Sumit Sudhir Phakatkar, Aiswarya Kalathil Jayan, Cathrine Sumathi Manohar

{"title":"Comparative Metabarcoding Analysis of Bacterial Communities and Functional Profiles in the Seaweed and Mangrove Blue Carbon Ecosystems of Goa, India","authors":"Ashutosh Shankar Parab, Mayukhmita Ghose, Vitasta Jad, Sumit Sudhir Phakatkar, Aiswarya Kalathil Jayan, Cathrine Sumathi Manohar","doi":"10.1111/maec.70020","DOIUrl":"https://doi.org/10.1111/maec.70020","url":null,"abstract":"<div>\u0000 \u0000 Seaweed and mangrove ecosystems, as integral components of the blue carbon habitat, play pivotal roles in global carbon sequestration and coastal protection. This study explores the bacterial communities and their functional profiles from the coastal habitats of Goa, emphasising their critical roles in the blue carbon ecosystems. The bacterial diversity based on the metabarcoding analysis of the V3–V4 region of the 16S rRNA gene was assessed from the seaweed habitats at Dona Paula and the mangrove ecosystem at Chorao, Goa. Proteobacteria, Cyanobacteria and Actinobacteria dominated the seaweed ecosystems. In contrast, mangrove ecosystems had a more complex microbiota, including Firmicutes and Planctomycetes, which thrive in anaerobic conditions. A comparative reanalysis of taxonomic and functional profiles from the study locations and seven additional locations from different seaweed and mangrove ecosystems of Goa reported in previous studies was also carried out to understand the temporal changes from 2017 to 2024. The results showed a significant presence of Firmicutes at selected locations, with an increased abundance of pathogenic taxa such as Bacillus, Clostridium and Shewanella. These locations, Anjuna, Hawaii and Bogmolo in the seaweed and Ribandar, Panaji and Campal in the mangrove habitats of Goa, were situated near urban regions and influenced by anthropogenic activities, including tourism and urban runoff. Analysis of the bacterial functional profiles also showed an increased representation of the genes associated with xenobiotic biodegradation pathways in these locations. These findings emphasise the urgent need for effective conservation strategies to protect these vital ecosystems against the rising threats of anthropogenic pressures, pollution and climate change.\u0000 </div>","PeriodicalId":49883,"journal":{"name":"Marine Ecology-An Evolutionary Perspective","volume":"46 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Can the Movement of the Deep-Sea Bivalve Acesta excavata Lead to a Dynamic Habitat?

IF 1.5 4区生物学

Marine Ecology-An Evolutionary Perspective Pub Date : 2025-05-14 DOI: 10.1111/maec.70018

D. Sacco, P. Cardinale, S. P. Canese, F. Cardone, S. Greco, R. Danovaro

{"title":"Can the Movement of the Deep-Sea Bivalve Acesta excavata Lead to a Dynamic Habitat?","authors":"D. Sacco, P. Cardinale, S. P. Canese, F. Cardone, S. Greco, R. Danovaro","doi":"10.1111/maec.70018","DOIUrl":"https://doi.org/10.1111/maec.70018","url":null,"abstract":"Acesta excavata is one of the largest and ecologically relevant bivalves along continental margins and is often associated with cold-water coral assemblages of the upper bathyal zone. Like other habitat-forming species, A. excavata contributes to increasing the secondary substrata and provides opportunities for the colonization and feeding of other sessile and mobile organisms. Despite most of the bivalves producing byssus being thought to be sessile or sedentary throughout their adult life stages, some species are known to be able to displace. Here we investigated, in mesocosm conditions, the ability of this deep-sea species to move/displace and compared its mobility with that of other shallow-water species. We report here for the first time that A. excavata moves almost continuously, with a maximum speed of 6.5 cm day−1 (maximum weekly displacement of ca 28 cm), with average speeds of approximately 0.3–1.3 cm per day. This speed is the highest value reported so far for byssus-attached bivalves (including Mytilus spp. and Pictada imbricata radiata). The movement of these bivalves, apparently due to the search for optimal feeding and substratum characteristics, can displace the habitat they create in response to changes in environmental and ecological conditions. These findings offer new opportunities for using this species in restoration protocols of deep-sea habitats and change our view of deep-sea hard bottoms from static to dynamic entities.","PeriodicalId":49883,"journal":{"name":"Marine Ecology-An Evolutionary Perspective","volume":"46 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/maec.70018","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multi-Species Fish Foraging Associations Involving Common Sydney Octopus With Crimsonband Wrasse, Günther's Wrasse and Yellowfin Bream 包括普通悉尼章鱼、红带濑鱼、<s:1>北濑鱼和黄鳍鲷在内的多物种鱼类觅食关联

IF 1.5 4区生物学

Marine Ecology-An Evolutionary Perspective Pub Date : 2025-05-13 DOI: 10.1111/maec.70021

Kimberley J. Pryor, Ashley M. Milton

{"title":"Multi-Species Fish Foraging Associations Involving Common Sydney Octopus With Crimsonband Wrasse, Günther's Wrasse and Yellowfin Bream","authors":"Kimberley J. Pryor, Ashley M. Milton","doi":"10.1111/maec.70021","DOIUrl":"https://doi.org/10.1111/maec.70021","url":null,"abstract":"<div>\u0000 \u0000 Multi-species fish foraging associations occur when individuals from two or more aquatic species forage with one another. Associations involving octopuses have been documented in the Pacific, Atlantic and Indian Oceans and the Red Sea. To determine which fishes interact with an octopus species in temperate coastal waters off eastern Australia, we video-recorded foraging common Sydney octopus, Octopus tetricus, at Fly Point in the Port Stephens-Great Lakes Marine Park, New South Wales. This study provides evidence that crimsonband wrasse and Günther's wrasse from family Labridae and yellowfin bream from family Sparidae attend common Sydney octopus. The octopuses and attendants did not behave aggressively towards each other. However, aggression between different attendants and agonistic interactions between wrasses were observed. Octopuses produce visual cues, such as appearance changes and substrate disturbances, which may have attracted attendants. Following an octopus is a novel feeding behaviour that appears to be learned by only some individuals in each attendant species. These findings will improve our understanding of interspecies interactions and trophic relationships in temperate coastal marine ecosystems.\u0000 </div>","PeriodicalId":49883,"journal":{"name":"Marine Ecology-An Evolutionary Perspective","volume":"46 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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