Marine Ecology-An Evolutionary Perspective最新文献_第9页

Mucus from the Pulmonate Sea Slug Onchidium typhae: Biochemical composition and ecological implications for the intertidal community 肺酸类海蛞蝓的黏液:生物化学组成及其对潮间带群落的生态意义

IF 1.1 4区生物学

Marine Ecology-An Evolutionary Perspective Pub Date : 2022-02-14 DOI: 10.1111/maec.12702

Kannapoj Techawongstien, Thaithaworn Lirdwitayaprasit, Supanut Pairohakul

{"title":"Mucus from the Pulmonate Sea Slug Onchidium typhae: Biochemical composition and ecological implications for the intertidal community","authors":"Kannapoj Techawongstien, Thaithaworn Lirdwitayaprasit, Supanut Pairohakul","doi":"10.1111/maec.12702","DOIUrl":"10.1111/maec.12702","url":null,"abstract":"Many marine organisms, especially molluscs, produce mucus, which can be used in several physiological processes, such as locomotion and defence. In addition to utilization for themselves, mollusc mucus may influence intertidal community dynamics. Therefore, the biochemical composition of Onchidium typhae Buchannan, 1800 mucus was investigated. The effects of mucus on the microphytobenthos growth rate, representing the ecological functions of the mucus, were also tested. The results showed that the mucus was mainly composed of water (82.5%), and a large proportion of the organic content in mucus consisted of proteins (40%), followed by carbohydrates (13.33%) and lipids (0.19%). The effects of mucus on microphytobenthos growth were conditional and genus-specific. Growth of Navicular sp. and Nitzschia sp. significantly responded to different concentrations and incubation times of the slug mucus. Fresh and concentrated mucus inhibited the growth of both species; low mucus concentration and longer incubation time showed a significant increase in the growth rates of both species. However, no effect of mucus on the Thalassiosira sp. growth rate was observed. These effects of mucus on diatom growth are discussed. Moreover, our findings suggested that the intertidal slug O. typhae may act as an intertidal ecosystem engineer, which can facilitate and influence benthic phytoplankton community dynamics.","PeriodicalId":49883,"journal":{"name":"Marine Ecology-An Evolutionary Perspective","volume":"43 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43647398","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: 1

Variation in autotrophic and heterotrophic sponge abundance in a shallow water seagrass system 浅水海草系统中自养和异养海绵丰度的变化

IF 1.1 4区生物学

Marine Ecology-An Evolutionary Perspective Pub Date : 2022-02-07 DOI: 10.21203/rs.3.rs-1322535/v1

R. Bachtiar, H. Madduppa, J. Bell

{"title":"Variation in autotrophic and heterotrophic sponge abundance in a shallow water seagrass system","authors":"R. Bachtiar, H. Madduppa, J. Bell","doi":"10.21203/rs.3.rs-1322535/v1","DOIUrl":"https://doi.org/10.21203/rs.3.rs-1322535/v1","url":null,"abstract":"\u0000 Sponges are well known to feed heterotrophically through suspension feeding, but their relationships with photosynthetic symbionts means they also have the potential to utilise or release photosynthetically-derived carbon. Here we determined the nutritional mode of abundant seagrass sponge species in the Wakatobi National Park, Indonesia from the near-reef flat zone to the high shore to assess the role they might play in nutrient fluxes. We measured in situ gross primary production (GPP) to respiration (P:R) ratios, photosynthetic pigment concentrations, and light compensation and saturation points of eight sponge species representing almost 100% of the total sponge assemblage biomass. We found that all sponge species contained photosynthetic pigments and had positive gross primary production, indicating the presence of photosynthetic symbionts. However, based on their daily oxygen budget not all sponge holobionts were autotrophic (P:R>1); six species were autotrophic, with five of them being net oxygen producers. Based on biomass, autotrophic sponges only dominated (98% of biomass) the sponge assemblage in the near-reef-flat zone. We suggest that the higher light intensity in the high- and middle-shore zones of the meadow triggers photoinhibition, limiting autotrophic sponge distribution further up the shore. We propose that the considerable biomass of autotrophic sponges in the lower parts of the seagrass meadow challenges our current view that sponges are generally consumers of large amounts of carbon from the water column, as photosynthetic symbionts have the potential to meet at least some of their sponge hosts carbon requirements or may release dissolved organic carbon to the environment.","PeriodicalId":49883,"journal":{"name":"Marine Ecology-An Evolutionary Perspective","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41658568","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

COI gene-based mitochondrial DNA variation of horseshoe crab (Tachypleus gigas) reveals high genetic variation and occurrence of distinct populations in the Bay of Bengal, India, and its comparison with other populations 基于COI基因的马蹄蟹线粒体DNA变异揭示了印度孟加拉湾不同种群的高遗传变异和发生率，并与其他种群进行了比较

IF 1.1 4区生物学

Marine Ecology-An Evolutionary Perspective Pub Date : 2022-02-01 DOI: 10.1111/maec.12701

Sanatan Tudu, Sandeep Kumar Gupta, Bisnu Prasad Dash

{"title":"COI gene-based mitochondrial DNA variation of horseshoe crab (Tachypleus gigas) reveals high genetic variation and occurrence of distinct populations in the Bay of Bengal, India, and its comparison with other populations","authors":"Sanatan Tudu, Sandeep Kumar Gupta, Bisnu Prasad Dash","doi":"10.1111/maec.12701","DOIUrl":"10.1111/maec.12701","url":null,"abstract":"Horseshoe crab (Tachypleus gigas) is an archaic group of marine species which plays a vital role in the saline ecosystem. We attempted to develop a baseline database about the ecology, phylogeography, and genetic variation among the horseshoe crab population from Odisha, India. We collected 152 samples of horseshoe crab from the coastal area of the Bay of Bengal. The generated cytochrome c oxidase subunit I gene (COI) sequences of T. gigas were compared with the GenBank sequences of five populations from Bangladesh, Thailand, Singapore, South China, and Malaysia. A total of 33 unique haplotypes were observed in six populations of T. gigas. Pairwise F-statistic distance (FST) between South China-India, Malaysia-India, Singapore-India, Thailand-India, and Bangladesh-India were 0.021, 0.020, 0.017, 0.015, and 0.008, respectively. It indicated that the Indian and Bangladesh populations were genetically close and distinct from the other four populations. Furthermore, the migrant per generation (Nm) was 0.16, which indicated a low gene flow among T. gigas populations. The haplotype diversity (Hd) and nucleotide diversity (π) were 0.7482 and 0.00313, respectively. It signifies the ecological importance of the Indian population that would help in formulating the future strategy for the conservation of horseshoe crab.","PeriodicalId":49883,"journal":{"name":"Marine Ecology-An Evolutionary Perspective","volume":"43 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41868987","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

Are CO2-rich seafloor pockmarks a suitable environment for ostracod assemblages? The example of the Zannone Giant Pockmark (central-eastern Tyrrhenian) 富含二氧化碳的海底麻子是介形虫组合的合适环境吗?赞诺内巨型麻坑(第勒尼安中东部)的例子

IF 1.1 4区生物学

Marine Ecology-An Evolutionary Perspective Pub Date : 2022-01-25 DOI: 10.1111/maec.12698

Giuseppe Aiello, Ilaria Mazzini, Roberta Parisi, Michela Ingrassia, Diana Barra

引用次数: 1

Molecular ecology of a shallow water shrimp, Acetes sibogae sibogae Hansen 1919: Evidence for strongly limited gene flow across the western Pacific 一种浅水虾的分子生态学，Acetes sibogae sibogae Hansen 1919:跨西太平洋的强烈有限基因流动的证据

IF 1.1 4区生物学

Marine Ecology-An Evolutionary Perspective Pub Date : 2022-01-23 DOI: 10.1111/maec.12695

Eko Hardianto, Jun Fukuchi, Yukio Hanamura, Diah Permata Wijayanti, Agus Sabdono, Hideyuki Imai

{"title":"Molecular ecology of a shallow water shrimp, Acetes sibogae sibogae Hansen 1919: Evidence for strongly limited gene flow across the western Pacific","authors":"Eko Hardianto, Jun Fukuchi, Yukio Hanamura, Diah Permata Wijayanti, Agus Sabdono, Hideyuki Imai","doi":"10.1111/maec.12695","DOIUrl":"10.1111/maec.12695","url":null,"abstract":"The shallow water shrimp Acetes sibogae sibogae is an ecological and economically important organism in the Asian region. We assessed the genetic diversity and population structure of this species based on samples obtained from eight sites in Japan, the Philippines and Indonesia. Nucleotide sequence analyses were performed based on PCR-amplified mitochondrial DNA fragments comprising the control region and part of the 12S rRNA gene. In total, 656 bp nucleotide sequences were obtained from 377 individuals. The results show a low haplotype diversity value in shrimp from the Kokuba-gawa River (0.5) in Japan and intermediate values (0.79–0.99) in other populations. While nucleotide diversity estimates in all sampled localities were lower (0.17%–0.86%) than those reported in other crustaceans, analysis of molecular variance revealed significant genetic differentiation (p < .001) among all sites. Furthermore, the mean fixation index estimate was very high (FST: 0.27), indicating that dispersal potential among sites was low and gene flow, therefore, was restricted. The mismatch distribution of pairwise differences between haplotypes indicated that A. s. sibogae did not fit a sudden population expansion model. Overall, the present study indicates that wild stocks of A. s. sibogae on Okinawa-jima Island and the Philippine and Indonesian Archipelagos should be assigned high importance for conservation management of this species because adapted genotypes have significant evolutionary potential during environmental changes.[Correction added on 5th February 2022, after first online publication: Values have been corrected in the Abstract section.]","PeriodicalId":49883,"journal":{"name":"Marine Ecology-An Evolutionary Perspective","volume":"43 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49459782","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: 1

Microbiomes associated with cultures of Gambierdiscus australes and Ostreopsis cf. ovata, two epibenthic dinoflagellates from the NE Atlantic Ocean (Las Palmas, Gran Canaria) 东北大西洋(大加那利群岛拉斯帕尔马斯)两种底栖甲藻——南方甘比耶斯和Ostreopsis f. ovata的微生物组学研究

IF 1.1 4区生物学

Marine Ecology-An Evolutionary Perspective Pub Date : 2022-01-23 DOI: 10.1111/maec.12699

Renata Denaro, Francesca Crisafi, Francesco Smedile, Vittorio Soprano, Rachele Rossi, Adriana Zingone, Felix Acosta, Maria Grazia Giacobbe

{"title":"Microbiomes associated with cultures of Gambierdiscus australes and Ostreopsis cf. ovata, two epibenthic dinoflagellates from the NE Atlantic Ocean (Las Palmas, Gran Canaria)","authors":"Renata Denaro, Francesca Crisafi, Francesco Smedile, Vittorio Soprano, Rachele Rossi, Adriana Zingone, Felix Acosta, Maria Grazia Giacobbe","doi":"10.1111/maec.12699","DOIUrl":"10.1111/maec.12699","url":null,"abstract":"Our study focuses on bacterial communities associated with two benthic, epiphytic dinoflagellates, Gambierdiscus australes and Ostreopsis cf. ovata, isolated from coastal waters of Las Palmas, Gran Canaria, and grown in clonal cultures. The goal was to characterize the stable bacterial consortia found within the phycosphere of each dinoflagellate species and establish into which functional group they fell. High-throughput sequencing (HTS) results highlighted a higher bacterial diversity in O. ovata compared with G. australes. Alphaproteobacteria dominated in both dinoflagellates with Marivita and Labrenzia as the most represented OTUs in Ostreopsis and Gambierdiscus, respectively, and Thalassospira and Oceanicaulis well represented in both species. Based on SIMPER analyses, Labrenzia and the Phycispherales SM1A02, dominant in Gambierdiscus and Ostreopsis, respectively, accounted for the most significant difference between the two microbiomes. The microbiomes described here differed from those described for the same dinoflagellate species in other studies, which could depend on differences in environmental conditions, macroalgal substrate, and/or growth stage or bloom phase of the microalgal hosts. The distinct bacterial communities associated with the two potentially toxic dinoflagellates, isolated from the same site and sampling event and cultivated under the same conditions, suggest different modalities of interaction and interexchange between bacteria and their hosts.","PeriodicalId":49883,"journal":{"name":"Marine Ecology-An Evolutionary Perspective","volume":"43 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47058315","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

Constitutive and activated toxigenic activity of Halomicronema metazoicum (Cyanoprokaryota, Cyanophyta) 后生褐藻(cyananoprokaryota, Cyanophyta)的组成和激活的产毒活性

IF 1.1 4区生物学

Marine Ecology-An Evolutionary Perspective Pub Date : 2022-01-20 DOI: 10.1111/maec.12697

Mirko Mutalipassi, Valerio Mazzella, Francesca Glaviano, Valerio Zupo

{"title":"Constitutive and activated toxigenic activity of Halomicronema metazoicum (Cyanoprokaryota, Cyanophyta)","authors":"Mirko Mutalipassi, Valerio Mazzella, Francesca Glaviano, Valerio Zupo","doi":"10.1111/maec.12697","DOIUrl":"10.1111/maec.12697","url":null,"abstract":"Phormidium-like cyanobacteria produce a variety of biologically active molecules. We isolated a free-living strain of Halomicronema metazoicum, previously known uniquely as a symbiont of marine sponges, and demonstrated that its spent medium was toxic for various protozoans and fish parasites. However, we still ignore if its mats contain constitutive or activated defences influencing the physiology of other organisms, with potential influences on organisms that share the same environment. The goal of this study is to clarify if Phormidium-like cyanobacteria accumulate toxic bioactive molecules in the colony tissues, for example for anti-grazing purposes, or if they constitutively secrete them in the medium, with a potential allelopathic function. To address this hypothesis, the toxigenic power of cyanobacterial spent medium and of disintegrated cells (to simulate lysis) was assayed using standard toxicity-tests on nauplii of the brine shrimp Artemia salina. Toxigenic effects were triggered by the spent culture medium, but the homogenates (disintegrated cyanobacteria cells) did not show any acute toxicity. In addition, chronic toxicity tests of the spent medium demonstrated a reduced but still present toxigenic effect, with an inverse correlation between toxicity and medium dilution. The present research contributes to the understanding of cyanobacteria chemical-ecology and shows that they may play fundamental ecological roles, influencing the survival and the blooms of various co-habiting species by constitutively releasing toxic exudates. Since the bioactive compounds produced by H. metazoicum are stable in water, and considering the bioactivity of exudates on invertebrates' physiology, our results might be exploited for the development of novel biotechnologies in the fields of aquaculture, ecological conservation and medicine, due to the potential antitumoral and anti-parasitic activity demonstrated in strictly related species.","PeriodicalId":49883,"journal":{"name":"Marine Ecology-An Evolutionary Perspective","volume":"43 6","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42981412","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: 3

Population structure, maturity and relative growth of the porcelain crab Pachycheles laevidactylus Ortmann, 1892 (Decapoda, Porcellanidae) in a temperate zone 温带瓷蟹Pachycheles laevidactylus Ortmann, 1892的种群结构、成熟度和相对生长(十足目，瓷蟹科)

IF 1.1 4区生物学

Marine Ecology-An Evolutionary Perspective Pub Date : 2022-01-20 DOI: 10.1111/maec.12693

Amanda P. Horch, Mariana Terossi

{"title":"Population structure, maturity and relative growth of the porcelain crab Pachycheles laevidactylus Ortmann, 1892 (Decapoda, Porcellanidae) in a temperate zone","authors":"Amanda P. Horch, Mariana Terossi","doi":"10.1111/maec.12693","DOIUrl":"10.1111/maec.12693","url":null,"abstract":"The porcelain crab Pachycheles laevidactylus is the most frequent crustacean decapod in the polychaeta sandbanks in some Brazilian locations; however, the only populational data available for this species are from Argentina. Here, we analysed the population structure, sex ratio, reproductive period, size at sexual maturity (functional and morphological) and relative growth of this species from two locations in southern Brazil. The crabs were collected seasonally during one year, sexed, counted and measured. A total of 1534 individuals were sampled, 943 in Torres and 591 in Tramandaí. There was no difference in cheliped size between sexes, while females were larger and had larger pleons than males, and this difference is related to reproduction. The sex ratio was 1:1 in both locations throughout the year. Ovigerous females were found in all seasons, with a higher frequency in the coldest seasons, but the presence of megalopae occurred exclusively in spring. The morphological sexual maturity for females was larger than the size of the smallest ovigerous female collected, as already reported for other decapods. Overall, the species starts reproducing at smaller sizes at locations closer to the edges of its distribution (northern Brazil and northern Argentina). Some differences in relative growth were found between males and females, adults and juveniles, and the implications of these differences are discussed. This study brings the first populational data of P. laevidactylus from Brazil over a year, which was compared with available studies of Porcellanidae and will be useful for comparison with future studies in tropical areas, to better understand how the biological aspects of this species vary along its wide distribution in the south-western Atlantic.","PeriodicalId":49883,"journal":{"name":"Marine Ecology-An Evolutionary Perspective","volume":"43 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47801892","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: 3

Photo-identification confirms polyandry in loggerhead sea turtles 照片鉴定证实了红海龟的一妻多夫制

IF 1.1 4区生物学

Marine Ecology-An Evolutionary Perspective Pub Date : 2022-01-19 DOI: 10.1111/maec.12696

Kostas Papafitsoros, Charalampos Dimitriadis, Antonios D. Mazaris, Gail Schofield

引用次数: 4

Habitat associations between Streptococcus bovis/equinus complex and Streptococcus phocae, the causative agents of strep syndrome in sea otters, and the marine environment 牛/马链球菌复合体与海獭链球菌综合征病原体——声音链球菌与海洋环境的栖息地关系

IF 1.1 4区生物学

Marine Ecology-An Evolutionary Perspective Pub Date : 2021-11-30 DOI: 10.1111/maec.12689

Natalie M. Rouse, Katrina L. Counihan, Deborah D. Boege Tobin, Caroline E. C. Goertz, Khrystyne N. Duddleston

{"title":"Habitat associations between Streptococcus bovis/equinus complex and Streptococcus phocae, the causative agents of strep syndrome in sea otters, and the marine environment","authors":"Natalie M. Rouse, Katrina L. Counihan, Deborah D. Boege Tobin, Caroline E. C. Goertz, Khrystyne N. Duddleston","doi":"10.1111/maec.12689","DOIUrl":"10.1111/maec.12689","url":null,"abstract":"The bacteria in the Streptococcus bovis/equinus complex (SBEC) and Streptococcus phocae have caused significant morbidity and mortality in northern sea otters (Enhydra lutris kenyoni). In order to illuminate the persistence and possible mechanisms of transmission of SBEC and S. phocae, the presence and absence of these bacteria were compared with 31 habitat attributes in Kachemak Bay and Resurrection Bay, Alaska. Bay mussels or water were collected at 1600-m intervals around the perimeters of each bay and habitat attributes were recorded onsite and/or determined using ShoreZone. PCR was used to confirm the presence of bacteria, and presence was correlated with habitat attributes. Geographic spatial analysis revealed a cluster of low occurrence of both SBEC and S. phocae in an extremely shallow portion of Kachemak Bay that may be due to drying of the area between tide cycles. A cluster of high occurrence of S. phocae on the northeast side of the Kachemak Bay was identified that may be associated with harbor seal presence. No statistically significant clusters were found in Resurrection Bay. Habitat attributes (rockweed, eelgrass, habitat class, soft brown kelp and substrates of rock, sand and boulder) were found to be associated with presence of the target bacteria; however, relationships were not consistent with the bacteria or each bay. This could be due to the complexity of the relationship between SBEC and S. phocae and their environments, as well as intrinsic differences (such as nearshore temperatures) between Kachemak and Resurrection Bays.","PeriodicalId":49883,"journal":{"name":"Marine Ecology-An Evolutionary Perspective","volume":"43 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/maec.12689","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45636565","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: 1