Journal of the Marine Biological Association of the United Kingdom最新文献

{"title":"First record of the phyllosoma larva of the pygmy locust lobster Scyllarus pygmaeus (Crustacea, Decapoda) in the eastern Mediterranean sea","authors":"Tamar Guy-Haim, Anastasiia Iakovleva, Khristina Ermak, Ehud Spanier, Arseniy R. Morov","doi":"10.1017/s0025315424000390","DOIUrl":"https://doi.org/10.1017/s0025315424000390","url":null,"abstract":"Taxonomic intricacies and high interspecific similarity have hampered the identification of scyllarid phyllosoma larvae to the species level. The pygmy locust lobster, <jats:italic>Scyllarus pygmaeus</jats:italic>, is distributed across the Mediterranean Sea and in the eastern Atlantic; however, its phyllosoma larvae were previously recorded only from the western Mediterranean. We employed DNA barcoding using the mitochondrial COI gene to identify <jats:italic>S</jats:italic>. <jats:italic>pygmaeus</jats:italic> phyllosoma collected from the offshore waters of the southeastern Mediterranean Sea and described its morphology. We further discuss the lack of genetic structure in S. <jats:italic>pygmaeus</jats:italic> with potential implications for species connectivity and conservation.","PeriodicalId":17477,"journal":{"name":"Journal of the Marine Biological Association of the United Kingdom","volume":"90 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140931835","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}

{"title":"A new morphotype description of Arbacia spatuligera Valenciennes, 1846 (Arbacioida, Echinoidea) and bathymetric range extension from mesophotic reefs of the central coast of Chile","authors":"Rigoberto Moreno-Mendoza, Erwan Courville, Luis Enrique Angeles-Gonzalez, Julio Duarte, Marc Carulla, Daniel Malfanti-Bravo, Andrés Mena-Auladell, Thomas Saucède, Nuno Simões, Elie Poulin","doi":"10.1017/s0025315424000389","DOIUrl":"https://doi.org/10.1017/s0025315424000389","url":null,"abstract":"The sea urchin <jats:italic>Arbacia spatuligera</jats:italic> is an echinoid distributed in the Southeastern Pacific Ocean from Peru to Chile. This species was previously reported from the subtidal zone with a bathymetric distribution up to 30 m depth. In this work, 128 individuals were found in four mesophotic reefs along the central coast off Chile using closed-circuit rebreathers in technical diving at higher depths than previously, ranging from 36 to 63 m in depth. A population exhibits unexpected morphological characters, requiring an emended diagnosis and description of a new morphotype for <jats:italic>A. spatuligera</jats:italic>. These morphological traits are further discussed as potential ecophenotypic adaptations.","PeriodicalId":17477,"journal":{"name":"Journal of the Marine Biological Association of the United Kingdom","volume":"26 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140931522","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}

{"title":"Karenia mikimotoi induced adverse impacts on abalone Haliotis discus hannai in Fujian coastal areas, China","authors":"Ling-Zhi Liao, Jia-Ning Lin, Xin-Shu Ding, Song Feng, Tian Yan","doi":"10.1017/s0025315424000353","DOIUrl":"https://doi.org/10.1017/s0025315424000353","url":null,"abstract":"<p>Large-scale outbreaks of the dinoflagellate <span>Karenia mikimotoi</span> caused substantial mortality of abalone, <span>Haliotis discus hannai</span> in Fujian, China in 2012, resulting in 20 billion in economic losses to abalone industries. However, the mechanism behind the mortality, especially the reaction of abalone to this microalgal toxicity, which possibly differed significantly from the former ‘fish killer’ strain in the South China Sea (SCS). Our study revealed that <span>K. mikimotoi</span> FJ-strain exhibited a four-fold higher haemolytic toxicity than the SCS-strain during the late exponential phase. At the microalgal cell density of 3 × 10<span>7</span> cell L<span>−1</span>, the FJ-strain caused abalone mortality of 67% in 48 h, with decreased granulocyte–hyalinocyts ratio and phagocytic activity by 58.96% and 75.64%, respectively, increased haemocyte viability by 4.8-fold and severe gill damage. The toxic effect only worked for the haemolytic toxicity from active algal cells, which were probably produced under the contact of algal cells and abalone gills. However, under exposure to the SCS-strain, more than 80% of individuals survived under aeration. The results indicated that FJ-strain was a new <span>K. mikimotoi</span> ecotype with stronger toxicity. It evoked severe effects, with complete abalone mortality within 24 h under the cascading effect of non-aeration (dissolved oxygen declined to 2.0 mg L<span>−1</span>), when exposed to <span>K. mikimotoi</span> FJ-strain at the above density. Thus, apart from the microalgal toxicity, DO depletion exacerbated the mortality of abalone in the experiment. The massive abalone mortalities in Fujian were probably caused by the combination of microalgal toxic effects and oxygen depletion, leading to immunological depression and histopathological disruption.</p>","PeriodicalId":17477,"journal":{"name":"Journal of the Marine Biological Association of the United Kingdom","volume":"7 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140810526","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}

{"title":"Marine bivalves voucher DNA barcoding from Eastern Mediterranean, with evidence for Ostrea stentina invasion","authors":"Dimitrios K. Papadopoulos, Ioannis A. Giantsis, Athanasios Lattos, Alexandros Triantafyllidis, Basile Michaelidis","doi":"10.1017/s0025315424000377","DOIUrl":"https://doi.org/10.1017/s0025315424000377","url":null,"abstract":"Bivalve molluscs are a diverse group of animals with particular economic and ecological importance. Their morphological characteristics frequently confuse their identification leading to mislabelling of edible species. Genetic diversity is critical to the resilience of marine bivalve populations in the face of environmental stressors such as ocean acidification and warming. In this study, we characterized the phylogeny and defined the first DNA barcodes of six marine bivalves [<jats:italic>Ostrea edulis</jats:italic> (Linnaeus, 1758) <jats:italic>Arca noae</jats:italic> (Linnaeus, 1758), <jats:italic>Pinctada radiata</jats:italic> (Leach, 1814), <jats:italic>Venus verrucosa</jats:italic> (Linnaeus, 1758), <jats:italic>Calllista chione</jats:italic> (Linnaeus, 1758) and <jats:italic>Ruditapes decussatus</jats:italic> (Linnaeus, 1758)] sampled from different coastal areas of Aegean and Ionian Seas using the molecular markers cytochrome c oxidase subunit I (COI) and 18S ribosomal RNA (18S rRNA). Further, COI gene was employed to investigate the population genetic diversity since 18S rRNA exhibited no conspecific differences. The sequence of 18S rRNA successfully discriminated the bivalves at family or superfamily level but occasionally proved insufficient for species identification. Contrariwise, COI was highly informative and could reliably distinguish all species. Population haplotype diversity was moderate to high and was always accompanied by generally low nucleotide diversity, indicating genetically closely related haplotypes. The invasive <jats:italic>Pinctada radiata</jats:italic> was found to be panmictic even among distant sampling areas, while <jats:italic>Ostrea edulis</jats:italic> was the only species that exhibited moderate levels of population subdivision. Finally, here we report for the first time the presence of <jats:italic>Ostrea stentina</jats:italic> in Thermaikos Gulf sampled among <jats:italic>Ostrea edulis</jats:italic> specimens, demonstrating a new invasive bivalve species in Eastern Mediterranean.","PeriodicalId":17477,"journal":{"name":"Journal of the Marine Biological Association of the United Kingdom","volume":"7 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140636731","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}

{"title":"Nutritional vulnerability of early zoeal stages of the ornamental shrimp Lysmata ankeri (Decapoda: Caridea)","authors":"Samara de P. Barros-Alves, Ariádine Cristine de Almeida, Maria Lucia Negreiros-Fransozo, Douglas Fernandes Rodrigues Alves","doi":"10.1017/s002531542400033x","DOIUrl":"https://doi.org/10.1017/s002531542400033x","url":null,"abstract":"The evaluation of the effects of early starvation and feeding on survival and growth in the early stages of the life cycle of ornamental marine caridean shrimp species is fundamental to establish adequate feeding protocols in their culture. In this study, we determine the nutritional vulnerability in the early larval stages of ornamental shrimp <jats:italic>Lysmata ankeri</jats:italic> exposed to different periods of starvation or feeding. The larvae were separated into three groups (zoea I-ZI, zoea II with ZI fed, and zoea II with ZI unfed) and subjected to two experiments: (1) point-of-no-return (PNR), comprising one or two days of initial starvation followed by feeding; and (2) point-of-reserve-saturation (PRS), comprising one or two days of initial feeding followed by starvation. Each experiment was still composed of two control groups: continuous feeding and continuous starvation. Larvae tolerated some periods of starvation, with a high PNR value (2.00) and low PRS (0.50). Longer periods of starvation influenced both growth and survival rates in zoea II stages. The nutritional vulnerability index for zoea I was 0.25, which represents a low dependence on food supply. In this study, it was observed that ornamental shrimp <jats:italic>L. ankeri</jats:italic> larvae hatch with energy reserves, presenting facultative primary lecithotrophy, in which they are able to moult from zoea I to zoea II using such reserves in the absence of food. In this sense, the early larvae stages (zoeas I and II) can tolerate a certain period of starvation, indicating the great potential of this species for aquaculture.","PeriodicalId":17477,"journal":{"name":"Journal of the Marine Biological Association of the United Kingdom","volume":"5 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140636721","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}

{"title":"The distribution of the red-throated ascidian Herdmania momus shifts northwards in association with ocean warming in the Korean Peninsula","authors":"Choul-Hee Hwang, Su Jin Lee, Hyeong Ju Seok, Hyun-Jung Kim, InSeo Hwang, Min Gu Kang, Joo Myun Park","doi":"10.1017/s0025315424000365","DOIUrl":"https://doi.org/10.1017/s0025315424000365","url":null,"abstract":"<p>Climate change poses a major threat to marine ecosystems, with its effects felt worldwide. A major effect of climate change on marine ecosystems is the rise in water temperature, leading to a northward expansion of habitats for marine organisms. <span>Herdmania momus</span>, a species of ascidians (sea squirts), originally found in tropical and subtropical regions, was introduced to the Korean Peninsula. In this study, we examined the habitat of <span>H. momus</span> along the southeastern coast of the Korean Peninsula between 2016 and 2022. We found that <span>H. momus</span> settlements were observed across the entire survey area, with confirmed habitation in Busan in 2016, Ulsan in 2021, and Gyeongju (the northernmost location) in 2022. The observed habitation trend indicates a rapid geographical expansion, occurring approximately 79 years earlier than previously predicted. These observations demonstrate that marine organisms are undergoing a more rapid geographical expansion than previously projected. These unexpected findings should inform government policies related to proactive measures and strategies for managing the impact of climate change on marine ecosystems.</p>","PeriodicalId":17477,"journal":{"name":"Journal of the Marine Biological Association of the United Kingdom","volume":"72 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140599623","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}

{"title":"Distribution of Avicennia spp. in the Andaman and Nicobar Islands with special reference to new distributional reports and post-tsunami colonization patterns","authors":"Anoop Raj Singh, Vedagiri Thirumurugan, Nehru Prabakaran","doi":"10.1017/s0025315424000262","DOIUrl":"https://doi.org/10.1017/s0025315424000262","url":null,"abstract":"<p>Post 2004 tsunami and earthquake, the landmass of Andaman and Nicobar Islands (ANI's) experienced uplift (North Andaman and Mayabunder) and subsidence (South Andaman &amp; Nicobar Islands). The altered geomorphology modified the tidal regime, which resulted in mangrove degradation in their current locations and the formation of new intertidal zones potential for mangrove colonization. <span>Avicennia</span> species; a pioneer in mangrove succession was expected to colonize such new intertidal zones. Therefore, to understand the colonization pattern of <span>Avicennia</span> species in these new intertidal zones and their distribution in the old forests, we surveyed 79 sites across ANI's (55 Andaman and 24 Nicobar Islands). Our survey confirms the presence of three <span>Avicennia</span> species namely <span>A. marina</span>, <span>A. officinalis,</span> and <span>A. alba</span> – a new distribution record to the ANI's. Further, <span>A. marina</span> was found to be the most widely distributed, and abundant among three <span>Avicennia</span> species (Relative Abundance (RA) – 97.92%; Relative Frequency (RF) – 68.75%). In contrast, <span>A. officinalis</span> (RA – 1.93%; RF – 26.25%) and <span>A. alba</span> (RA – 0.16%; RF – 5%) were found limited in their distribution and abundance. As per the IUCN Red List, the <span>Avicennia</span> population is decreasing globally, whereas, its population may increase significantly across ANI's due to the availability of vast new intertidal zones. Hence, <span>Avicennia</span> spp. can be utilized in the plantation programs to facilitate rapid colonization in the unvegetated potential mangrove habitats across ANI's. Such an effort will improve the mangrove ecosystem services that were hampered due to mangrove degradation by the 2004 tsunami.</p>","PeriodicalId":17477,"journal":{"name":"Journal of the Marine Biological Association of the United Kingdom","volume":"126 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140600225","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}

{"title":"Confirmation of hilsa shad (Tenualosa ilisha) in Vietnamese waters: a morphological and genetic analysis","authors":"Vanthu Giap, Md Rashedur Rahman, Chenhong Li","doi":"10.1017/s0025315424000341","DOIUrl":"https://doi.org/10.1017/s0025315424000341","url":null,"abstract":"One specimen of tropical shad was caught from the Giang Thanh River, Kien Giang province, Vietnam in a survey on 16 October 2022. We identified the specimen as the hilsa shad, <jats:italic>Tenualosa ilisha</jats:italic> Hamilton, 1822 using morphological analysis, and further validated by its cytochrome oxidase subunit I (COI) sequence. The specimen was 418 mm long, 1428 g in weight, with a head length of 29.0% and pectoral fin length of 31.1% of its standard length. Notably, the presence of 34 scutes, a higher gill raker count and a caudal fin length within the moderate range for <jats:italic>Tenualosa</jats:italic> species distinguished it from <jats:italic>T. macrura</jats:italic>, <jats:italic>T. toli</jats:italic> and <jats:italic>T. reevesii</jats:italic>. The COI sequence of the sample matched closely to the <jats:italic>T. ilisha</jats:italic>. The results confirm that <jats:italic>T. ilisha</jats:italic> still endures Vietnamese water, where it was thought to be extinct. Climate change and Indo-Pacific Ocean currents may introduce expansion of distribution area of the <jats:italic>T. ilisha</jats:italic>. Further studies on distribution of the <jats:italic>T. ilisha</jats:italic> and other <jats:italic>Tenualosa</jats:italic> species and their dynamics are needed.","PeriodicalId":17477,"journal":{"name":"Journal of the Marine Biological Association of the United Kingdom","volume":"37 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140599885","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}

{"title":"Sightings of Bryde's whale, Balaenoptera edeni, off the Pacific coast of Nicaragua","authors":"Joëlle De Weerdt, Carla Patulny, Nerea Ruiz Pérez, Leslie Blanchet","doi":"10.1017/s0025315424000250","DOIUrl":"https://doi.org/10.1017/s0025315424000250","url":null,"abstract":"Here, we report the first sighting records of Bryde's whales in Nicaragua. Four sightings were made in 2022 during boat-based surveys off the southwestern coast of Nicaragua. Photo-identification, distributional data, dive times, and behavioural information were collected, and environmental parameters, including sea surface temperature, were measured for each sighting. Sightings included calf and non-calf groups displaying travelling (<jats:italic>n</jats:italic> = 1; 25%), milling (<jats:italic>n</jats:italic> = 1; 25%), and suspected feeding (<jats:italic>n</jats:italic> = 2; 50%) behaviours. Approximately 4 h of focal following allowed the calculation of short and long breath intervals. Based on our observations, the individuals were suspected of feeding in the area, based on the presence of feeding birds, feeding humpback whales, relatively high time-lagged chlorophyll-a, and observed general behaviours. Our findings indicate that this species may occasionally visit Nicaraguan coastal areas in search of feeding opportunities, and could represent a possible range extension of the Eastern North Pacific stock.","PeriodicalId":17477,"journal":{"name":"Journal of the Marine Biological Association of the United Kingdom","volume":"61 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140600223","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}

{"title":"Isolation, identification, and antibacterial activity of endophytic fungus from Acanthus ilicifolius","authors":"V. P. Sruthi, K. R. Sreenath, T. G. Sumithra, V. N. Anusree, P. Sainamole Kurian","doi":"10.1017/s0025315424000286","DOIUrl":"https://doi.org/10.1017/s0025315424000286","url":null,"abstract":"Antimicrobial-resistant bacteria pose serious public health risks, necessitating bioprospecting for novel antimicrobial drugs. The endophytic fungi of the mangrove ecosystem are hotspots for discovering new bioactive chemical compounds. In this context, an investigation was designed to determine the isolation of the major endophytic fungi inhabiting the leaves of <jats:italic>Acanthus ilicifolius</jats:italic>, a mangrove plant with a long history of traditional use in the Chinese and Indian medical systems. Based on the morphological characterizations and molecular analysis of internal transcribed spacer rDNA sequence data, the study identified three unique endophytic fungal species, namely, <jats:italic>Periconia macrospinosa</jats:italic>, <jats:italic>Coprinopsis cinerea</jats:italic>, and <jats:italic>Alternaria</jats:italic> sp. Of these, <jats:italic>P. macrospinosa</jats:italic> was identified as the most dominant one, with the highest relative frequency (35.22%). The antibacterial activity of <jats:italic>P. macrospinosa</jats:italic> isolate (CMFRI/fPM-01) was evaluated by the well and diffusion method against six human pathogens, <jats:italic>viz.</jats:italic>, <jats:italic>Escherichia coli</jats:italic>, <jats:italic>Klebsiella pneumoniae</jats:italic>, <jats:italic>Staphylococcus aureus</jats:italic>, <jats:italic>Vibrio cholerae</jats:italic>, <jats:italic>Vibrio parahaemolyticus</jats:italic>, and <jats:italic>Vibrio vulnificus</jats:italic>. The results demonstrated a high and wide spectrum of antimicrobial action of the isolate against all the tested human pathogens, with no significant difference (<jats:italic>P</jats:italic> &gt; 0.05) in the activity between the pathogens. The antibacterial activity was further confirmed by determining the fungal culture supernatant's minimum inhibitory concentration and minimum bactericidal concentration. Although the studied fungi are known from other sources, this is the first report of <jats:italic>P. macrospinosa</jats:italic> and <jats:italic>C. cinerea</jats:italic> as endophytes in <jats:italic>A. ilicifolius</jats:italic> leaves. The outcomes also showed that the <jats:italic>P. macrospinosa</jats:italic> isolate could be used to discover effective antibacterial drugs against various human diseases.","PeriodicalId":17477,"journal":{"name":"Journal of the Marine Biological Association of the United Kingdom","volume":"9 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140599621","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}