Marine Biology Research最新文献

{"title":"Morphological, phylogenetic and biogeographic characterizations of three heterotrophic nanoflagellates isolated from coastal areas of Korea","authors":"Dong Hyuk Jeong, Hyeon Been Lee, Aaron A. Heiss, Byung Cheol Cho, Jong Soo Park","doi":"10.1080/17451000.2023.2271939","DOIUrl":"https://doi.org/10.1080/17451000.2023.2271939","url":null,"abstract":"Heterotrophic nanoflagellates (HNFs, 2–20 μm in size) are important bacterivores in aquatic environments. We isolated and distinguished three HNF strains from Korean coastal samples: Ancyromonas kenti strain KM086, Cafeteria mylnikovii strain JS001 and Multimonas media strain JS004. Their 18S rDNA sequences aligned with previously known counterparts. Under light microscopy, all strains match their previous respective species descriptions. However, under scanning electron microscopy, strain JS004 shows some features at odds with prior observations of M. media, including different putative extrusomes, an ‘unfrilled’ skirt margin, and a putative ‘tusk’. We also used the V4 region of 18S rDNA to study species distribution globally using Malaspina-2010 data from 122 surface stations and 13 various depth stations. Intriguingly, we found that A. kenti was most abundant in low-oxygen conditions of the bathypelagic zones (1000–4000 m deep) in the Pacific Ocean, suggesting a specialization for thriving in low-oxygen habitats. In contrast, we only found M. media represented at one surface site, and C. mylnikovii was not found at all. Thus, A. kenti may be one of the most important feeders on bacteria in the bathypelagic zones with low-oxygen concentrations, while the other two isolates appear to be rare species in marine systems.","PeriodicalId":18195,"journal":{"name":"Marine Biology Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135342025","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":"Age, growth, and feeding of boarfish, <i>Capros aper</i> (Linnaeus, 1758) in the Southwest of the Iberian Peninsula","authors":"J. Castro-Gutiérrez, A. García-González, C. Rodríguez-García, Á. R. Domínguez-Bustos, R. Cabrera-Castro","doi":"10.1080/17451000.2023.2267566","DOIUrl":"https://doi.org/10.1080/17451000.2023.2267566","url":null,"abstract":"","PeriodicalId":18195,"journal":{"name":"Marine Biology Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136104219","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":"Aggregation patterns in juvenile southern king crab <i>Lithodes santolla</i> (Molina, 1782). Are the aggregations related to moulting activity?","authors":"Julia Colombo, Vinuesa Julio, Martín Varisco","doi":"10.1080/17451000.2023.2262485","DOIUrl":"https://doi.org/10.1080/17451000.2023.2262485","url":null,"abstract":"ABSTRACTThe early life history of decapod species involves several stages and ontogeny-related shifts in habitat requirements and behaviour. Early publications have reported that, in the San Jorge Gulf (45–47°S), Argentina, juvenile southern king crab Lithodes santolla (Molina, 1782) (SKC) remain in rocky coastal habitats for at least three years, prior to their migration to soft bottoms. In this study, we analysed the gregarious behaviour of juvenile SKCs and its relation with moulting activity through the early ontogeny of the species. Different aggregation patterns were observed in SKC juveniles during sampling. These aggregation patterns were related to an increase in moulting activity. SKC 1+ and 2+ formed small groups of 7–31 juveniles in holes or cracks at shallower depths. A large aggregation was recorded in November 2014 associated with Macrocystis pyrifera forests. This aggregation involved advanced juveniles 3+, probably at the end of their stay in the coastal environment. Our results suggest that the aggregation of juvenile SKCs is related to high moulting activity and that differences in the aggregation patterns are related to ontogeny. The aggregation of advanced juveniles may reflect a (re)synchronous moult prior to a coordinated abandonment of the coastal environment.HIGHLIGHTS The aggregation behaviour of SKC juveniles is related to an increase in moulting activity.The aggregation pattern exhibits differences related to the size/age of SKC juveniles.SKCs form large aggregations at the end of their stay in coastal environments.KEYWORDS: Southern king crabLithodes santollaaggregations of juvenilesontogenetic shiftsmoulting activity AcknowledgementsWe thank Héctor Durbas for his assistance in the fieldwork.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was partially funded by the Ministerio de Ciencia, Tecnología e Innovación Productiva of Argentina (PICT 2015-1297).","PeriodicalId":18195,"journal":{"name":"Marine Biology Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135666744","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":"Morphometric analyses of <i>Mithraculus forceps</i> (Brachyura: Mithracidae): linear and geometric approaches in a no-take marine reserve population","authors":"Gabriel Vieira Martins Rezende-Gois, Caio Santos Nogueira, Isabela Ribeiro Rocha Moraes, Rafael Carvalho Santos, Rogerio Caetano Costa","doi":"10.1080/17451000.2023.2262482","DOIUrl":"https://doi.org/10.1080/17451000.2023.2262482","url":null,"abstract":"ABSTRACTMithraculus forceps is a common species on islands in Brazil, and investigations of their sexual and population structures provide insights into their life cycle. Our aim was to analyze relative growth, estimate morphological sexual maturity, and investigate sexual dimorphism in a population inhabiting the Alcatrazes Archipelago. Sampling was conducted using artificial refuge and active capture methods. Five body structures were analyzed for relative growth and morphological sexual maturity estimation: carapace and abdomen width, propodus length and height, and gonopod length in males. Sexual dimorphism was observed in carapace and propodus shape. Morphological sexual maturity was estimated at 10.12 mm carapace width for males and 10.66 mm carapace width for females. Some variations in morphometric aspects were observed in the analyzed population when compared to other populations of M. forceps inhabiting unprotected areas. Crabs from Alcatrazes may reach larger sizes due to their protected habitat. This underscores the crucial role of a marine conservation unit in preserving significant ecological processes and highlights the importance of management plans for other locations and environments facing anthropogenic pressures.KEYWORDS: AllometryAlcatrazes ArchipelagoDecapodarelative growthreproduction AcknowledgmentsWe would like to express our gratitude to the entire LABCAM and LABIAQUA teams for their assistance during the animal collection. CSN thanks for its doctoral and postdoctoral scholarships (FAPESP 2019/00661-3 and 2023/01445-8). We also thank ICMBio (Instituto Chico Mendes de Biodiversidade) and IBAMA (Instituto Brasileiro de Meio Ambiente e dos Recursos Naturais Renováveis) for granting permission to sample and transport in situ wild fauna for scientific purposes, in accordance with the State and Federal regulatory framework SISBIO (Sistema de Autorização e Informações em Biodiversidade) n° 69588-4/2020.Data availability statementThe data that support the findings of this study are available from the corresponding author, CSN, upon reasonable request.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was funded by the São Paulo Research Foundation (FAPESP) [Fundação de Amparo à Pesquisa do Estado de São Paulo] [grant numbers 2018/13685-5 for RCC, 2018/00739-0 and 2022/08605-8 for RCS]; National Council for Scientific and Technological Development (CNPq) [Conselho Nacional de Desenvolvimento Científico e Tecnológico] [grant numbers 306672/2018-9 and 304368/2022-9 for RCC]; Coordination for the Improvement of Higher Education Personnel (CAPES) [Coordenação de Aperfeiçoamento de Pessoal de Nível Superior] [grant number 88887.604989/2021-00 for GVMRG].","PeriodicalId":18195,"journal":{"name":"Marine Biology Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135147209","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":"First evidence of trace metals and persistent organic contaminants from an endangered marine species, <i>Mobula mobular</i> (Bonattere, 1788) caught in Hellenic waters (Saronikos Gulf)","authors":"Leila Bordbar, Evangelia Strogyloudi, Ioannis Hatzianestis, Vasiliki Paraskevopoulou, Archontia Chatzispyrou","doi":"10.1080/17451000.2023.2256343","DOIUrl":"https://doi.org/10.1080/17451000.2023.2256343","url":null,"abstract":"ABSTRACTThe number of cartilaginous fish is declining worldwide and contaminants are one of the primary stress factors in marine organisms. The spinetail devil ray or giant devil ray (Mobula mobular) is listed as an ‘Endangered species’ globally in the IUCN Red List of Threatened Species. One individual devil ray caught in Saronikos Gulf was tested for trace metals (Zn, Cu, Fe, Mn, Ni, Cr, Pb and Hg) and organochlorine contaminants (PCBs and DDTs). The concentrations of contaminants in the muscle tissue of the devil ray did not exceed safe human consumption limits. However, relatively elevated levels of trace metals and PCBs were measured in the liver and in particular the PCB congeners were five times higher than the European Commission limit. This study highlights the need for future research on the potential impacts of trace metals and organic contaminants on elasmobranchs and more specifically on threatened species.KEYWORDS: Spinetail devil raytrace metalsDDTsPCBsSaronikos Gulf AcknowledgementsThe authors would like to thank Elvira Plakidi and Stella Chourdaki from the Organic Chemistry Laboratory of the Hellenic Center for Marine Research – Institute of Oceanography for their help and kind advice in measuring organochlorine substances and Chryssa Roka for preparing the map.Disclosure statementNo potential conflict of interest was reported by the authors.","PeriodicalId":18195,"journal":{"name":"Marine Biology Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135425673","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":"Sertularioidea (Cnidaria, Hydrozoa) from the Guinea Current Large Marine Ecosystem (GCLME)","authors":"Marta Gil, Fran Ramil","doi":"10.1080/17451000.2023.2253823","DOIUrl":"https://doi.org/10.1080/17451000.2023.2253823","url":null,"abstract":"ABSTRACTThis paper describes the study of a small collection of Sertularioidea Lamouroux, 1812 (Cnidaria, Hydrozoa) collected along the Guinea Current Large Marine Ecosystem (GCLME) during four oceanographic surveys performed between 2005 and 2008. The samples were collected at 12 stations located at depths between 18 and 359 m using a bottom trawl and a Petersen grab. A total of 112 colonies were identified, belonging to 13 species, nine genera, and three families. The family Sertulariidae showed the highest species richness, with 11 species, whereas the families Thyroscyphidae and Sertularellidae were represented only by one species each. In this manuscript is described the first report of Salacia tetracythara in the Eastern Atlantic, Abietinaria abietina in West Africa, and Salacia desmoides in the GCLME region. One species was only described to the genus level, and material of Dynamena dalmasi from Cape Verde was also examined as comparison material.KEYWORDS: North-west AfricaHydroidolinaLeptothecataSertulariidaeSertularellidaeThyroscyphidae AcknowledgementsWe express our gratitude to Professor Endre Willassen, Jon Anders Kongsrud and Katrine Kongshavn of the University Museum of Bergen, for their hospitality and assistance during our pleasant stay in their laboratory, to study the collections of North-west African hydroids. Special thanks go to Dr Ana Ramos for her ongoing support at all stages of this study, and also for her total involvement in benthic research in Africa.Disclosure statementNo potential conflict of interest was reported by the authors.Additional informationFundingThis study was performed within the framework of the Spanish ECOAFRIK project. This is ECOAFRIK publication number 53.","PeriodicalId":18195,"journal":{"name":"Marine Biology Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135014462","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":"Investigating the capture mechanism of scavenging gastropods in hanging-net fisheries","authors":"Kostas Ganias, Alexandra Karatza, Dimitrios Lachouvaris","doi":"10.1080/17451000.2023.2256345","DOIUrl":"https://doi.org/10.1080/17451000.2023.2256345","url":null,"abstract":"ABSTRACTThe current study aimed to elucidate the capture mechanism of B. brandaris and H. trunculus in two métiers of the Greek small-scale fisheries (SSF) that use trammel. The commercial and discarded catch from three commercial SSF boats was recorded in parallel to in-situ SCUBA diving observations and video analyses of the entangled catch at net retrieval. The abundance of gastropods in the nets was correlated with the abundance of captured fish in both métiers. This correlation was undoubtedly caused by the scavenging activity of gastropods on organisms captured in the lower portion of the net, such as combers, wrasses, and cuttlefish. Underwater observations revealed that the number of scavengers per fish increased gradually with the degree of fish consumption, whereas on-deck observations revealed that the foraging groups became malformed as soon as the flesh consumption was complete, as evidenced by the presence of fish bones in the absence of scavengers. Only a small percentage of the gastropods in the catch became entangled on the net, and that the majority of the gastropods were carried on deck by attaching to their entangled prey. The current study provided a clear explanation of the capture mechanism of the two muricids, as well as critical knowledge for their conservation.KEYWORDS: small-scale fisheriestrammel netsmuricidsdiscardsMediterranean AcknowledgmentsThe current study was carried out as part of the ‘ENVIRO_NETS: mitigating the environmental impact of trammel nets’ project, which was funded by the Greek Operational Programme for Fisheries and Sea (2014–2020), under the call for ‘innovation related to the conservation of marine living resources’ [MIS 5068822]. The authors would like to thank Chryssanthi Antoniadou and Katerina Charitonidou for their assistance with laboratory analysis and scientific diving and Maria Garagouni for curating the database. Konstantina Vei and Dimitris Pavlidis are thanked for their assistance at experimental fishing trials. A special thanks goes to the collaborating fishers for sharing their knowledge and insights throughout all stages of this work.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported by Greek Operational Programme for Fisheries and Sea (2014-2020),: [Grant Number MIS 5068822].","PeriodicalId":18195,"journal":{"name":"Marine Biology Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135307265","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":"Population variation and sexual dimorphism in the deep-sea crab Parilia alcocki (Brachyura, Leucosiidae)","authors":"K. V. Aneesh Kumar, V. Padate, S. Cubelio, N. Saravanae","doi":"10.1080/17451000.2023.2246473","DOIUrl":"https://doi.org/10.1080/17451000.2023.2246473","url":null,"abstract":"ABSTRACT Parilia alcocki is a deep-sea crab inhabiting the continental shelves and slopes of the eastern Arabian Sea and western Bay of Bengal at a depth of 128–457 m. No published information is available on its population characteristics and sexual dimorphism. The present study provides the first-ever insight into the population differentiation and sexual dimorphism in P. alcocki using Geometric Morphometric Analysis (GMA) of carapace and chela shapes. The Arabian Sea population possessed carapaces with a more pointed anterior and a rounded posterior margin as compared with the Bay of Bengal population. When chela shapes are compared, the Arabian Sea crabs possess an elongated, narrower arm, and shorter pollex. The observed shape variations could be attributed to heterogeneous habitat conditions in these regions which influence feeding and predation. Sexual dimorphism in carapace shapes was indiscernible. However, males exhibited wider intra-specific variations in carapace shape and show a larger average and maximum size for linear carapace measurements. Also, male crabs possess elongated and narrow arms and shorter pollex, whereas the females have a broader and shorter arm and longer pollex, indicative of classical sexual size dimorphism. Our study confirmed the suitability of GMA to understand the ecological and biological characteristics and trait-habitat linkages of P. alcocki.","PeriodicalId":18195,"journal":{"name":"Marine Biology Research","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45722350","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":"Latitudinal distribution of skeleton shrimps (Amphipoda, Caprellidae) in artificial habitats throughout the eastern South Pacific coast of Peru","authors":"Juan A. Chunga-Llauce, Liliana Tapia-Ugaz, A. Pacheco","doi":"10.1080/17451000.2023.2246488","DOIUrl":"https://doi.org/10.1080/17451000.2023.2246488","url":null,"abstract":"ABSTRACT Biodiversity tends to decrease poleward and increase towards the equator. However, these patterns remain unknown for many invertebrate taxa throughout Peru's eastern South Pacific coast, particularly for caprellid crustaceans which are conspicuous in artificial habitats. Three biogeographical units have been proposed for the Peruvian coast: Panamic and Humboldt provinces with a transition zone in between, but a few invertebrates support this classification. We evaluated if the diversity of caprellids decreases towards high latitudes and if the assemblages of caprellids depicted the biogeographic zonation proposed for the Peruvian coast. From 15th to 31st October 2021, caprellids were collected from biofouling communities colonizing boat hulls, buoys, and ropes throughout the Peruvian coast (3.74°–17.99° S). The caprellid assemblage consisted on six species: Caprella penantis [sensu lato], C. penantis f. gibbosa, C. equilibra, C. scaura, Paracaprella pusilla, and Deutella venenosa. Overall, caprellids' abundance, species richness, and diversity decreased southwards. Specific caprellid assemblages showed affinities for each of the three biogeographical units. The dissimilarity of the caprellid assemblages increased at approximately every one degree of latitude. Although artificial substrates can alter biodiversity patterns, caprellids showed the canonical pattern of high diversity towards the equator and resembled the biogeographic zonation proposed for the Peruvian coast.","PeriodicalId":18195,"journal":{"name":"Marine Biology Research","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46331829","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":"Letter to editor: misidentification of species in the experimental study carried out in the sea of Marmara by Karadurmuş (Marine Biology Research, 2022: 18, 315–325)","authors":"M. Çınar, B. Yokeş","doi":"10.1080/17451000.2023.2235579","DOIUrl":"https://doi.org/10.1080/17451000.2023.2235579","url":null,"abstract":"This letter is written to report misidenti fi cations of species in a paper that recently appeared in the journal Marine Biology Research (Vol. 18, Nos. 5 – 6, pages: 315 – 325), entitled ‘ Recolonization behavior of rapa whelk ( Rapana venosa ) and common star fi sh ( Asterias rubens ) eradicated from mussel bed ’ by U ğ ur Karadurmu ş (Department of Underwater Technology, Band","PeriodicalId":18195,"journal":{"name":"Marine Biology Research","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46418312","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}