https://scientiamarina.revistas.csic.es/index.php/scientiamarina/issue/feed Scientia Marina 2021-09-30T00:00:00+02:00 Francesc Peters scimar@icm.csic.es Open Journal Systems <p><strong>Scientia Marina</strong> is a scientific journal published by <a title="Consejo Superior de Investigaciones Científicas" href="https://www.csic.es/" target="_blank" rel="noopener">CSIC</a> and edited by the <a title="Institut de Ciències del Mar" href="https://www.icm.csic.es/" target="_blank" rel="noopener">Institut de Ciències del Mar</a> that publishes original papers, reviews and comments concerning research in the following fields:</p> <p>- Marine Biology and Ecology<br />- Fisheries and Fisheries Ecology<br />- Systematics, Faunistics and Marine Biogeography<br />- Physical Oceanography<br />- Chemical Oceanography<br />- Marine Geology.</p> <p>Emphasis is placed on articles of an interdisciplinary nature and of general interest.</p> <p>Founded in 1955 under the title of <em>Investigación Pesquera</em> adopts its current name in 1989. It began to be available online in 2007, in PDF format, maintaining printed edition until 2014. That year it became an electronic journal publishing in PDF, HTML and XML-JATS. Contents of previous issues are also available in PDF files.</p> <p><strong>Scientia Marina </strong> is indexed in <a title="WOS" href="https://clarivate.com/webofsciencegroup/solutions/web-of-science/" target="_blank" rel="noopener">Web of Science</a>: <a title="JCR" href="https://clarivate.com/webofsciencegroup/solutions/journal-citation-reports/" target="_blank" rel="noopener">Journal Citation Reports</a> (JCR), <a title="SCI" href="https://clarivate.com/webofsciencegroup/solutions/webofscience-scie/" target="_blank" rel="noopener">Science Citation Index Expanded</a> (SCI), <a title="CC" href="https://clarivate.com/webofsciencegroup/solutions/webofscience-current-contents-connect/" target="_blank" rel="noopener">Current Contents</a> - Agriculture, Biology &amp; Environmental Sciences, <a href="https://clarivate.com/webofsciencegroup/solutions/webofscience-zoological-record/" target="_blank" rel="noopener">Zoological Record</a> and <a href="https://clarivate.com/webofsciencegroup/solutions/webofscience-biosis-previews/" target="_blank" rel="noopener">BIOSIS Previews</a>; <a title="SCOPUS" href="https://www.elsevier.com/solutions/scopus" target="_blank" rel="noopener">SCOPUS</a>, <a title="CWTSji" href="http://www.journalindicators.com/indicators/journal/28430" target="_blank" rel="noopener">CWTS Leiden Ranking</a> (Journal indicators) Core publication, <a href="https://www.redib.org/recursos/Serials/Record/oai_revista448-materiales-construccion" target="_blank" rel="noopener">REDIB</a>, <a href="https://doaj.org/toc/1988-3226?source=%7B%22query%22%3A%7B%22filtered%22%3A%7B%22filter%22%3A%7B%22bool%22%3A%7B%22must%22%3A%5B%7B%22term%22%3A%7B%22index.issn.exact%22%3A%221988-3226%22%7D%7D%2C%7B%22term%22%3A%7B%22_type%22%3A%22article%22%7D%7D%5D%7D%7D%2C%22query%22%3A%7B%22match_all%22%3A%7B%7D%7D%7D%7D%2C%22from%22%3A0%2C%22size%22%3A100%7D" target="_blank" rel="noopener">DOAJ</a> and other national and international databases. It is indexed in Latindex Catalogue 2.0 and has obtained the FECYT Seal of Quality.</p> <p><strong style="color: #800000;">Journal Impact Factor (JIF)</strong> 2020 (2 years): <strong>1.576</strong><br /><strong style="color: #800000;">Journal Impact Factor (JIF)</strong> 2020 (5 years): <strong>1.569</strong><br /><strong style="color: #800000;">Rank by JIF: </strong><strong>67</strong>/110 (Q3, Marine &amp; Freshwater Research)<br />Source: <a title="Clarivate Analytics" href="http://clarivate.com/" target="_blank" rel="noopener">Clarivate Analytics</a>©, <a title="JCR" href="http://clarivate.com/scientific-and-academic-research/research-evalution/journal-citation-reports/" target="_blank" rel="noopener">Journal Citation Reports</a>®</p> <p><strong style="color: #800000;">Journal Citation Indicator (JCI)</strong> 2020: <strong>0.52</strong><br /><strong style="color: #800000;">Rank by JCI: </strong><strong>68</strong>/115 (Q3, Marine &amp; Freshwater Research)<br />Source: <a title="Clarivate Analytics" href="http://clarivate.com/" target="_blank" rel="noopener">Clarivate Analytics</a>©, <a title="JCR" href="http://clarivate.com/scientific-and-academic-research/research-evalution/journal-citation-reports/" target="_blank" rel="noopener">Journal Citation Reports</a>®</p> <p><strong style="color: #800000;">Eigenfactor / Percentile </strong>2020: <strong>0.00093</strong><br /><strong style="color: #800000;">Article influence/ Percentile </strong>2020: <strong>0.370</strong><br /><strong style="color: #800000;">Eigenfactor Category:</strong> Ecology and Evolution<br />Source: University of Washington©, <a title="EigenFACTOR" href="http://www.eigenfactor.org/projects/journalRank/rankings.php?search=0214-8358&amp;searchby=issn&amp;orderby=year" target="_blank" rel="noopener">EigenFACTOR</a>®</p> <table style="width: 100%; border-spacing: 0px; border-collapse: collapse; margin-top: 40px;"> <tbody> <tr> <td style="width: 33%; text-align: left; vertical-align: top;"> <p class="check">Open Access</p> <p class="check">No APC</p> <p class="check">Indexed</p> <p class="check">Original Content</p> </td> <td style="width: 33%; text-align: left; vertical-align: top;"> <p class="check">Peer Review</p> <p class="check">Ethical Code</p> <p class="check">Plagiarism Detection</p> <p class="check">Digital Identifiers</p> </td> <td style="width: 33%; text-align: left; vertical-align: top;"> <p class="check">Interoperability</p> <p class="check">Digital Preservation</p> <p class="check">Research Data Policy</p> <p class="check">PDF, HTML, XML-JATS</p> <p class="check">Online First</p> </td> </tr> </tbody> </table> https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1903 The fish family Muraenidae: an ideal group for testing at small-scale the coherency of Macaronesia as a biogeographic unit, with the first report on separate fishery statistics 2021-09-01T09:17:38+02:00 José A. González pepe.solea@ulpgc.es Sandra Correia sandra.correia@imar.gov.cv Sebastián Jiménez sebastian.jimenez@ieo.es Carlos A. Monteiro monteiro.carlos@imar.gov.cv João Delgado joao.delgado@madeira.gov.pt Mário R. Pinho mario.rr.pinho@uac.pt José M. Lorenzo josemaria.lorenzo@ulpgc.es Gustavo González-Lorenzo jgustavo.gonzalez@ieo.es <p>The present study was conceptualized to study the muraenid species (moray eels) occurring around the volcanic archipelagos of the Azores, Madeira, Selvagens, Canary and Cabo Verde islands (eastern-central Atlantic). The biogeographic patterns of these species were analysed and compared. We then hypothesized that this fish family is an ideal group for testing at small-scale the coherency of Macaronesia and its direct biogeographic units: i.e. the Azores, Webbnesia and Cabo Verde, as proposed in recent scientific literature. Additionally, this paper provides for the first time separate fishery statistics for this group in the region that were analysed to contrast the biogeographic results.</p> 2021-09-02T00:00:00+02:00 Copyright (c) 2021 Consejo Superior de Investigaciones Científicas (CSIC) https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1904 Validating the growth increment periodicity in the otoliths of three small progenetic gobies 2021-09-01T10:28:54+02:00 Sílvia Pérez-Mayol silvia@imedea.uib-csic.es Itziar Álvarez itziar@imedea.uib-csic.es Inmmaculada Riera-Batle miriera@dgpesca.caib.es Amalia Grau amaliagrau@dgpesca.caib.es Beatriz Morales-Nin beatriz@imedea.uib-csic.es <p>We determined the efficacy of marking the otoliths of three small-sized progenetic gobies to validate their increment periodicity. These small gobies have high mortalities and rearing difficulties, making direct validation difficult. The otoliths were marked by immersing the fish in a bath of alizarin red S. The fishes were euthanatized and the number of increments in their otoliths laid down after the fluorescent mark were counted and compared with the number of elapsed days. The results validated the daily periodicity of&nbsp;<em>Aphia minuta</em>&nbsp;and&nbsp;<em>Pseudaphya ferreri</em>. The high mortality hindered the validation of&nbsp;<em>Crystallogobius linearis</em>.</p> 2021-09-02T00:00:00+02:00 Copyright (c) 2021 Consejo Superior de Investigaciones Científicas (CSIC) https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1905 Age and growth of pompano, Trachinotus ovatus, from the Strait of Messina (central Mediterranean Sea) 2021-09-01T11:59:27+02:00 Danilo Malara danilo.malara@szn.it Francesco Longo francesco.longo@szn.it Luca Pagano luca.pagano@szn.it Maria Giulia Stipa mariagiulia.stipa@szn.it Teresa Romeo teresa.romeo@szn.it Franco Andaloro franco.andaloro@szn.it Silvestro Greco silvestro.greco@szn.it Pietro Battaglia pietro.battaglia@szn.it <p>This is the first paper to provide detailed information on the age and growth of&nbsp;<em>Trachinotus ovatus</em>. The size of the 244 individuals collected in the Strait of Messina ranged from 2.7 to 30.4 cm in fork length (<em>L</em><sub>F</sub>) and 0.31 to 508.6 g in body mass (<em>M</em>). The relationship between these parameters (<em>M</em>&nbsp;-&nbsp;<em>L</em><sub>F</sub>) was investigated and showed a good fit. Age estimation based on vertebrae and otoliths yielded similar results, suggesting a maximum age of five years. However, the precision and accuracy tests, such as percentage of agreement (PA), mean coefficient of variation (ACV) and average percent error (APE) indicated that the otolith readings (97.83% PA, 0.54% ACV and 0.38% APE) were more reliable for age estimation than vertebrae readings (82.17% PA, 5.33% ACV and 3.77% APE). The multi-model inference approach allowed us to compare different non-linear growth models. The von Bertalanffy model (<em>L</em><sub>∞</sub>=29.139,&nbsp;<em>k</em>=0.496 and&nbsp;<em>t</em><sub>0</sub>=−0.347) fitted the length-at-age data best. This species has a relatively rapid growth and an estimated longevity of five to seven years. This information could be used for management and first stock assessment studies on&nbsp;<em>T. ovatus</em>&nbsp;in the Mediterranean Sea.</p> 2021-09-02T00:00:00+02:00 Copyright (c) 2021 Consejo Superior de Investigaciones Científicas (CSIC) https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1906 Distribution and changes in the sbGnRH system in Rastrelliger brachysoma males during the breeding season 2021-09-01T12:58:39+02:00 Sinlapachai Senarat Senarat.s@hotmail.com Jes Kettratad Jes.K@chula.ac.th Wannee Jiraungkoorskul wannee.jir@mahidol.ac.th Niwat Kangwanrangsan niwat.kan@mahidol.ac.th Masafumi Amano amanoma@kitasato-u.ac.jp Akio Shimizu aneko@affrc.go.jp F. Gerald Plumley fffgp@yahoo.com Sasipong Tipdomrongpong tor6707sasi@gmail.com <p><em>Rastrelliger brachysoma</em>&nbsp;is a mariculture candidate species, but reproduction in captive fish has been problematic. This report examines the difference in the HPG axis, the neuroendocrine system and the development of reproductive tissues between captive vs. wild male&nbsp;<em>R. brachysoma</em>. The gonadosomatic index (GSI) of sexually mature male wild&nbsp;<em>R. brachysoma</em>&nbsp;was 1.12±0.34 and 1.94±0.26 during the non-breeding and breeding seasons, respectively. Captive&nbsp;<em>R. brachysoma</em>&nbsp;had a GSI of 1.88±0.17. All wild&nbsp;<em>R. brachysoma</em>&nbsp;were in the late spermatogenic stage irrespective of seasons. Immunostaining results showed that sbGnRH-immunoreactive neurons were distributed in three areas of the brain, namely the nucleus periventricularis, nucleus preopticus and nucleus lateralis tuberis. Follicle stimulating hormone and luteinizing hormone immunoreactivities were also observed in the pituitary gland. The levels of brain sbGnRH and GtH mRNA were not significantly different between the non-breeding and breeding seasons, but captive fish displayed (times or percent difference) lower mRNA levels than wild fish. These results suggest that these hormones control the testicular development in&nbsp;<em>R. brachysoma</em>&nbsp;and that the impaired reproduction in captivity may be due to their relative lower expression levels of follicle stimulating hormone and luteinizing hormone genes.</p> 2021-09-02T00:00:00+02:00 Copyright (c) 2021 Consejo Superior de Investigaciones Científicas (CSIC) https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1907 Intra- and interspecific discrimination of Scorpaena species from the Aegean, Black, Mediterranean and Marmara seas 2021-09-01T13:45:14+02:00 Serdar Yedier serdar7er@gmail.com Derya Bostanci deryabostanci@gmail.com <p>This study was conducted to discriminate five&nbsp;<em>Scorpaena</em>&nbsp;species and populations of each species according to morphometric characters. A total of 1865 fish specimens were collected from the eight locations in the four Turkish seas: Antalya, Balıkesir, Çanakkale, Hatay, İzmir, Marmara Ereğlisi, Ordu and Şile. In the study, 26 morphometric traits were measured for intra- and interspecific discrimination of five&nbsp;<em>Scorpaena</em>&nbsp;species. The data were subjected to analysis of variance, principal components analysis (PCA) and canonical discriminant analysis. As results of the PCA, 10 traits for&nbsp;<em>S. maderensis</em>&nbsp;and&nbsp;<em>S. scrofa,</em>&nbsp;12 traits for&nbsp;<em>S. elongata</em>&nbsp;and 13 traits for&nbsp;<em>S. notata</em>&nbsp;and&nbsp;<em>S. porcus</em>&nbsp;were found to be important for intraspcific discrimination. The overall classification scores of intraspecific discrimination were determined as 94.6% for&nbsp;<em>S. elongata</em>, 90.5% for&nbsp;<em>S. maderensis</em>, 96.7% for&nbsp;<em>S. notata</em>, 96.5% for&nbsp;<em>S. porcus</em>&nbsp;and 92.2% for&nbsp;<em>S. scrofa</em>. The PCA indicated that 13 morphometric measurements among the 26 traits are important in the interspecific discrimination of five&nbsp;<em>Scorpaena</em>&nbsp;species. The cross-validated canonical discriminant analysis was correctly classified as 97.4% at the&nbsp;<em>Scorpaena</em>&nbsp;species level. The discrimination of correctly classified species ranged from 94.8% to 100%. Finally, we demonstrated that the morphometric characters examined in the present study can be used successfully in the intra- and interspecific discrimination of&nbsp;<em>Scorpaena</em>&nbsp;species from different habitats.</p> 2021-09-02T00:00:00+02:00 Copyright (c) 2021 Consejo Superior de Investigaciones Científicas (CSIC) https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1908 Comparison of techniques for counting prokaryotes in marine planktonic and biofilm samples 2021-09-02T09:05:18+02:00 Vanessa Ochi Agostini voagostini@gmail.com Letícia Terres Rodrigues letterres@hotmail.com Alexandre José Macedo alexandre.macedo@ufrgs.br Erik Muxagata e.muxagata@gmail.com <p>Though a large number of techniques are available for the study of aquatic bacteria, the aim of this study was to establish a technique for analysing free-living and biofilm prokaryotic cells through laboratory assays. In particular, we wished to analyse the efficiency of ultrasound to detach and disrupt biofilm, to obtain an efficient stain treatment for quantifying free-living and biofilm prokaryotes in flow cytometry (FC), and to compare epifluorescence microscopy (EFM), scanning electron microscopy (SEM) and FC for quantifying free-living and biofilm prokaryotes#. Marine-grade plywood substrates were immersed in natural marine water that was conditioned for 12 days. At 6 and 12 days, water aliquots and substrates were removed to estimate free-living and biofilm prokaryote density. Ultrasound efficiently removed marine biofilm from substrates (up to 94%) without cell damage. FC analysis (unstained) reliably quantified marine plankton and young or mature biofilm prokaryotes compared with other staining (acridine orange, 4′,6-diamidino-2-phenylindole, propidium iodide and green fluorescent nucleic acid), EFM or SEM techniques. FC and SEM achieved similar results, while a high variability was observed in the EFM technique. FC was faster and more precise than SEM because the count is not dependent on the observer.</p> 2021-09-02T00:00:00+02:00 Copyright (c) 2021 Consejo Superior de Investigaciones Científicas (CSIC)