https://scientiamarina.revistas.csic.es/index.php/scientiamarina/issue/feed
Scientia Marina
2023-07-04T14:22:41+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 & 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> 2022 (2 years): <strong>1.400</strong><br /><strong style="color: #800000;">Journal Impact Factor (JIF)</strong> 2022 (5 years): <strong>1.800</strong><br /><strong style="color: #800000;">Rank by JIF:</strong> <strong>63</strong>/106 (Q3, Marine & 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> 2022: <strong>0.57</strong><br /><strong style="color: #800000;">Rank by JCI:</strong> <strong>55</strong>/114 (Q2, Marine & 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>2022: <strong>0.00069</strong><br /><strong style="color: #800000;">Article influence/ Percentile </strong>2022: <strong>0.389</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&searchby=issn&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/1953
Barcoding coffee grounds - Exploring pteropod gastropod biodiversity with dregs in collection jars
2023-07-04T09:34:05+02:00
Christina Franziska Laibl
laibl@snsb.de
Juan Lucas Cervera Currado
lucas.cervera@uca.es
Jérôme Morinière
jerome.moriniere@aim.science
Michael Schrödl
schroedl@snsb.de
<p>Despite their cosmopolitan occurrence and massive plankton sampling during expeditions, the genetic diversity within Pteropoda Cuvier, 1804 is still largely unexplored. In this study we present a next-generation environmental barcoding approach to zooplankton bulk samples, which were collected during the circumglobal 2010 Malaspina expedition to evaluate pteropod diversity. We introduce a technique that avoids destructive procedures and leaves material intact for further morphological investigations. We extracted DNA out of the dregs (organic material such as mucus or body parts) of 27 sample containers for molecular barcoding (average 100-260 bp of COI). We were able to identify 7128 operational taxonomic units corresponding to the species composition contained in the examined samples. Among them were three species of thecosome pteropods, <em>Creseis acicula</em>, <em>Creseis virgula</em> and <em>Cavolinia inflexa</em>, which are discussed with respect to their taxonomy and their geographic distribution. Unidentified gymnosomes were also present in our samples from warmer regions in oceanic waters of the southern Indian Ocean. To facilitate identification of species, it is beneficial to create a better database of pteropod COI barcodes. Furthermore, gathering environmental barcoding data on a broad global scale will help to better understand species abundance and distribution of pteropods in the world’s oceans, and potentially those of other planktonic organisms.</p>
2023-07-04T00:00:00+02:00
Copyright (c) 2023 Consejo Superior de Investigaciones Científicas (CSIC)
https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1954
Effects of misrepresentative length samples on individual growth and stock condition estimates
2023-07-04T10:08:27+02:00
Enrique R. Villa-Diharce
villadi@cimat.mx
Miguel Á. Cisneros-Mata
miguel.cisneros@inapesca.gob.mx
Evlin A. Ramírez-Félix
evlin.ramirez@inapesca.gob.mx
<p>Despite its importance in fisheries studies, there is insufficient understanding on the effect of sampling error or bias on individual growth and other stock indicators. We show the influence of sample length distributions on parameter estimates, illustrating with an example. For the brown swimming crab, we simulated length samples in five configurations and estimated parameters of von Bertalanffy (k, <span id="MathJax-Element-1-Frame" class="mjx-chtml MathJax_CHTML" style="display: inline-block; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: 400; font-size: 15.47px; letter-spacing: normal; overflow-wrap: normal; word-spacing: 0px; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; color: #000000; font-family: Roboto, sans-serif, Montserrat, -apple-system, BlinkMacSystemFont, 'Segoe UI', Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue'; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; widows: 2; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; position: relative;" tabindex="0" role="presentation" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mrow><mi mathvariant="normal">L</mi></mrow><mrow><mi mathvariant="normal">&#x221E;</mi></mrow></msub></math>"><span id="MJXc-Node-1" class="mjx-math" aria-hidden="true"><span id="MJXc-Node-2" class="mjx-mrow"><span id="MJXc-Node-3" class="mjx-msub"><span class="mjx-base"><span id="MJXc-Node-4" class="mjx-mrow"><span id="MJXc-Node-5" class="mjx-mi"><span class="mjx-char MJXc-TeX-main-R">L</span></span></span></span><span class="mjx-sub"><span id="MJXc-Node-6" class="mjx-mrow"><span id="MJXc-Node-7" class="mjx-mi"><span class="mjx-char MJXc-TeX-main-R">∞</span></span></span></span></span></span></span><span class="MJX_Assistive_MathML" role="presentation">L∞</span></span> , t<sub>0</sub>), asymptotic weight ( <span id="MathJax-Element-2-Frame" class="mjx-chtml MathJax_CHTML" style="display: inline-block; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: 400; font-size: 15.47px; letter-spacing: normal; overflow-wrap: normal; word-spacing: 0px; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; color: #000000; font-family: Roboto, sans-serif, Montserrat, -apple-system, BlinkMacSystemFont, 'Segoe UI', Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue'; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; widows: 2; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; position: relative;" tabindex="0" role="presentation" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mrow><mi mathvariant="normal">W</mi></mrow><mrow><mi mathvariant="normal">&#x221E;</mi></mrow></msub></math>"><span id="MJXc-Node-8" class="mjx-math" aria-hidden="true"><span id="MJXc-Node-9" class="mjx-mrow"><span id="MJXc-Node-10" class="mjx-msub"><span class="mjx-base"><span id="MJXc-Node-11" class="mjx-mrow"><span id="MJXc-Node-12" class="mjx-mi"><span class="mjx-char MJXc-TeX-main-R">W</span></span></span></span><span class="mjx-sub"><span id="MJXc-Node-13" class="mjx-mrow"><span id="MJXc-Node-14" class="mjx-mi"><span class="mjx-char MJXc-TeX-main-R">∞</span></span></span></span></span></span></span><span class="MJX_Assistive_MathML" role="presentation">W∞</span></span> ), weight-length relationship (a, b), growth performance (ϕ’) and condition factor (Kn). Parameter estimates were compared with baseline values using relative bias, standard error and root mean square error. The results show that the accuracy and bias of parameter estimates depend on the lengths sampled. For example, the bias and accuracy of <span id="MathJax-Element-3-Frame" class="mjx-chtml MathJax_CHTML" style="display: inline-block; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: 400; font-size: 15.47px; letter-spacing: normal; overflow-wrap: normal; word-spacing: 0px; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; color: #000000; font-family: Roboto, sans-serif, Montserrat, -apple-system, BlinkMacSystemFont, 'Segoe UI', Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue'; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; widows: 2; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; position: relative;" tabindex="0" role="presentation" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mrow><mtext>L</mtext></mrow><mrow><mtext>&#x221E;</mtext></mrow></msub></math>"><span id="MJXc-Node-15" class="mjx-math" aria-hidden="true"><span id="MJXc-Node-16" class="mjx-mrow"><span id="MJXc-Node-17" class="mjx-msub"><span class="mjx-base"><span id="MJXc-Node-18" class="mjx-mrow"><span id="MJXc-Node-19" class="mjx-mtext"><span class="mjx-char MJXc-TeX-main-R">L</span></span></span></span><span class="mjx-sub"><span id="MJXc-Node-20" class="mjx-mrow"><span id="MJXc-Node-21" class="mjx-mtext"><span class="mjx-char MJXc-TeX-main-R">∞</span></span></span></span></span></span></span><span class="MJX_Assistive_MathML" role="presentation">L∞</span></span> and <span id="MathJax-Element-4-Frame" class="mjx-chtml MathJax_CHTML" style="display: inline-block; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: 400; font-size: 15.47px; letter-spacing: normal; overflow-wrap: normal; word-spacing: 0px; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; color: #000000; font-family: Roboto, sans-serif, Montserrat, -apple-system, BlinkMacSystemFont, 'Segoe UI', Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue'; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; widows: 2; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; position: relative;" tabindex="0" role="presentation" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mrow><mtext>W</mtext></mrow><mrow><mtext>&#x221E;</mtext></mrow></msub></math>"><span id="MJXc-Node-22" class="mjx-math" aria-hidden="true"><span id="MJXc-Node-23" class="mjx-mrow"><span id="MJXc-Node-24" class="mjx-msub"><span class="mjx-base"><span id="MJXc-Node-25" class="mjx-mrow"><span id="MJXc-Node-26" class="mjx-mtext"><span class="mjx-char MJXc-TeX-main-R">W</span></span></span></span><span class="mjx-sub"><span id="MJXc-Node-27" class="mjx-mrow"><span id="MJXc-Node-28" class="mjx-mtext"><span class="mjx-char MJXc-TeX-main-R">∞</span></span></span></span></span></span></span><span class="MJX_Assistive_MathML" role="presentation">W∞</span></span> vary inversely with sampled length, whereas combining length segments yields smaller biases of k and t<sub>0</sub> than those of <span id="MathJax-Element-5-Frame" class="mjx-chtml MathJax_CHTML" style="display: inline-block; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: 400; font-size: 15.47px; letter-spacing: normal; overflow-wrap: normal; word-spacing: 0px; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; color: #000000; font-family: Roboto, sans-serif, Montserrat, -apple-system, BlinkMacSystemFont, 'Segoe UI', Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue'; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; widows: 2; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; position: relative;" tabindex="0" role="presentation" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mrow><mtext>L</mtext></mrow><mrow><mtext>&#x221E;</mtext></mrow></msub></math>"><span id="MJXc-Node-29" class="mjx-math" aria-hidden="true"><span id="MJXc-Node-30" class="mjx-mrow"><span id="MJXc-Node-31" class="mjx-msub"><span class="mjx-base"><span id="MJXc-Node-32" class="mjx-mrow"><span id="MJXc-Node-33" class="mjx-mtext"><span class="mjx-char MJXc-TeX-main-R">L</span></span></span></span><span class="mjx-sub"><span id="MJXc-Node-34" class="mjx-mrow"><span id="MJXc-Node-35" class="mjx-mtext"><span class="mjx-char MJXc-TeX-main-R">∞</span></span></span></span></span></span></span><span class="MJX_Assistive_MathML" role="presentation">L∞</span></span> and <span id="MathJax-Element-6-Frame" class="mjx-chtml MathJax_CHTML" style="display: inline-block; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: 400; font-size: 15.47px; letter-spacing: normal; overflow-wrap: normal; word-spacing: 0px; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; color: #000000; font-family: Roboto, sans-serif, Montserrat, -apple-system, BlinkMacSystemFont, 'Segoe UI', Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue'; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; widows: 2; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; position: relative;" tabindex="0" role="presentation" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mrow><mtext>W</mtext></mrow><mrow><mtext>&#x221E;</mtext></mrow></msub></math>"><span id="MJXc-Node-36" class="mjx-math" aria-hidden="true"><span id="MJXc-Node-37" class="mjx-mrow"><span id="MJXc-Node-38" class="mjx-msub"><span class="mjx-base"><span id="MJXc-Node-39" class="mjx-mrow"><span id="MJXc-Node-40" class="mjx-mtext"><span class="mjx-char MJXc-TeX-main-R">W</span></span></span></span><span class="mjx-sub"><span id="MJXc-Node-41" class="mjx-mrow"><span id="MJXc-Node-42" class="mjx-mtext"><span class="mjx-char MJXc-TeX-main-R">∞</span></span></span></span></span></span></span><span class="MJX_Assistive_MathML" role="presentation">W∞</span></span> . In general, the accuracy of parameter estimates does not always depend on sampling the entire length range, and errors are not the same for all parameters. These results are useful to guide sampling when resources are scarce. We discuss potential reasons for incomplete length sample structure and offer recommendations to obtain best estimates for parameters of interest.</p>
2023-07-04T00:00:00+02:00
Copyright (c) 2023 Consejo Superior de Investigaciones Científicas (CSIC)
https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1955
Subindividual variability in sea pens (Octocorallia: Pennatulacea)
2023-07-04T11:49:19+02:00
Francisco J. García-Cárdenas
frangarca@us.es
<p>Comparisons between plants and sessile modular colonial invertebrates offer interesting parallelisms between plant and animal body plans after millions of years of divergent evolution. Among these parallelisms might be the existence and distribution of intraindividual heterogeneity in organ traits, also named subindividual variability. Subindividual variability is quantitatively important and has many consequences for plant individuals, populations and communities, and for animal consumers as well. However, could a similar process of subindividual variability occur in sea pens, which have a modular architecture similar to that of plants? In the literature of marine invertebrates very little is known about the presence and magnitude of subindividual variability in modular organisms. This study provides for the first time a quantitative assessment of subindividual variability in sea pens, analysing certain biometric features of reiterated structures that presumably have some ecological function, and offers an initial comparison of quantitative levels of subindividual variation between plants and sea pens.</p>
2023-07-04T00:00:00+02:00
Copyright (c) 2023 Consejo Superior de Investigaciones Científicas (CSIC)
https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1956
Reproduction and growth of the Red Sea goatfish Parupeneus forsskali in its new environment (Cyprus, eastern Mediterranean Sea)
2023-07-04T12:15:01+02:00
Sigurdur Saemundsson
siggif@gmail.com
Athanassios C. Tsikliras
atsik@bio.auth.gr
Niki Chartosia
nchartos@ucy.ac.cy
<p>In the Mediterranean Sea, six species of Mullidae have been recorded, four of them being alien to the area. The most recent arrival in the Mediterranean is the Red Sea goatfish (<em>Parupeneus forsskali</em>), which was first spotted there in the year 2000. Although <em>P. forsskali</em> is endemic to the Red Sea and the Gulf of Aden, it has recently expanded its distribution; it was confirmed in Cyprus in 2014. Since then, it has established a thriving population around the island, and is now commercially important. In the present study, the spawning season and gonad development of <em>P. forsskali</em> off the coast of Cyprus were studied, along with important biological parameters. Macroscopic and histological analyses of the gonads indicated five maturity phases for both ovaries and testes. The gonadal maturity phases and the gonadosomatic index indicated that <em>P. forsskali</em> spawns in the summer months, with the peak of the spawning season in July. Males were bigger, heavier, and more abundant than females, and the length-weight relationship was found to be TW=0.0065 TL<sup>3.17</sup> for males and TW=0.0086 TL<sup>3.07</sup> for females, both indicating positive allometric growth. The size at first sexual maturity (LM) was 14.2 cm for males and 11.8 cm for females. Five age groups were identified from the length-frequency distribution (0-4 years old). Age group 1 was the most dominant one, containing almost 60% of the sampled individuals. Natural mortality (M) declined with age, and the mean natural mortality coefficient across ages was 0.563 year<sup>-1</sup>. Overall, this is the first study that provides important information on the spawning season of the Red Sea goatfish and other estimations on various biological traits in its non-native habitat that can be of great importance for fisheries management.</p>
2023-07-04T00:00:00+02:00
Copyright (c) 2023 Consejo Superior de Investigaciones Científicas (CSIC)
https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1957
Infralittoral coralligenous reefs: structure and spatial variability of macroalgal assemblages
2023-07-04T12:50:29+02:00
Luigi Piazzi
lpiazzi@uniss.it
Lorenzo Pacciardi
pacciardi@cibm.it
Marco Pertusati
pertusati@cibm.it
Carlo Pretti
pretti@cibm.it
Anna Maria De Biasi
debiasi@cibm.it
<p>Coralligenous reefs are calcareous structures edified mostly by coralline algae that characterize the circalittoral zone of the Mediterranean Sea. However, in some cases coralline algae can constitute peculiar infralittoral biogenic reefs which have been studied less than the circalittoral ones. This study aims to contribute to the knowledge of infralittoral coralligenous reefs by describing their macroalgal assemblages on a large rocky platform off the Tuscany coasts, northwestern Mediterranean Sea. To this end, a multifactorial sampling design was used to describe the structure of the assemblages and to evaluate the variability of the system at multiple spatial scales. A total of 71 macroalgal taxa were found on the coralline algae. Macroalgal assemblages were well structured, with high biodiversity values. The dominant taxa included both photophilous and sciaphilous species, guaranteeing peculiar characteristics in these assemblages, above all if compared with the typical infralittoral and circalittoral macroalgal communities of the same geographic area. The assemblages showed greater variability at a small and intermediate spatial scale than at a large scale. Although infralittoral coralligenous outcrops constitute a peculiar system, they are still poorly understood and should not only be the object of specific studies but also be included in monitoring programmes.</p>
2023-07-04T00:00:00+02:00
Copyright (c) 2023 Consejo Superior de Investigaciones Científicas (CSIC)
https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1958
Maternal influence on the larval morphometry of the brush-clawed shore crab Hemigrapsus takanoi (Decapoda: Brachyura)
2023-07-04T13:19:00+02:00
José M. Landeira
jose.landeira@ulpgc.es
Effrosyni Fatira
effrosini.fatira@gmail.com
Kana Banno
kana.banno@ntnu.no
Yuji Tanaka
ytanaka@kaiyodai.ac.jp
<p>The morphology of larvae is a key factor influencing their behaviour, performance and ultimately their survival. There is evidence indicating a significant morphological variability among broods, and that this may be related to the size or conditions of the mother. However, this maternal influence is not consistent across decapod crustaceans. Using 35 broods from different mothers of the crab <em>Hemigrapsus takanoi</em> collected in the same locality of inner Tokyo Bay and at the same time, we tested the hypothesis that there is a positive relationship between the size of the mother and the progeny’s morphology. Our results indicate that different patterns in the length of the lateral, rostral and dorsal spines differentiated two distinct morphogroups of larvae. These morphogroups were linked to the size of the mother, showing that larger mothers produced bigger larvae with longer carapace spines. It is possible that larger size and longer spines can influence swimming performance and predator avoidance, respectively. These relationships should be tested in future experimental studies.</p>
2023-07-04T00:00:00+02:00
Copyright (c) 2023 Consejo Superior de Investigaciones Científicas (CSIC)
https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1959
The molluscan fauna of Chella Bank and surroundings (Western Mediterranean Sea)
2023-07-04T13:42:15+02:00
José Antonio Caballero-Herrera
jantonio.caballero@ieo.csic.com
Javier Urra
javier.urra@ieo.csic.es
Serge Gofas
sgofas@uma.es
Carmen Salas
casanova@uma.es
Patricia Bárcenas
patricia.barcenas@ieo.csic.es
Marina Gallardo-Núñez
marina.gallardo@ieo.csic.es
Elena Moya-Urbano
emoyaurbano@gmail.com
Jesús Olivero
jesusolivero@uma.es
José L. Rueda
jose.rueda@ieo.csic.es
<p>Molluscs of Chella Bank and its surroundings were studied from 21 samples collected with a van Veen grab in the depth range 95-729 m. A total of 299 taxa were identified (77 live-taken), thus increasing by more than 95% the species of molluscs reported in the recently declared site of community importance “Sur de Almería-Seco de los Olivos”. Two of the species are new records to Spanish waters and one to the Alboran Sea. The high species richness observed could be related to the location, the hydrological characteristics and the topographical heterogeneity of the area within the Alboran Sea. Four significant groups of samples were discriminated through multivariate analysis of quantitative data of live-taken molluscs: (I) bathyal muddy bottoms with buried rhodoliths; (II) bathyal muddy bottoms with coral rubble; (III) bathyal hemipelagic muddy bottoms and (IV) bathyal sandy bottoms. Molluscs were more diverse on coral framework bottoms than on sedimentary bottoms around Chella Bank. Most of the live-taken species are widely distributed along the Atlantic and Mediterranean Sea, and a few are strictly Mediterranean. The most striking feature was the occurrence of two species with planktotrophic larval development for which Chella Bank is the sole recorded locality in the Mediterranean (<em>Episcomitra angelesae</em> and <em>Mitrella templadoi</em>) and which elsewhere extremely rare (<em>Mathilda</em> spp.).</p>
2023-07-04T00:00:00+02:00
Copyright (c) 2023 Consejo Superior de Investigaciones Científicas (CSIC)
https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1960
The population dynamics of Carcinus maenas (Crustacea: Portunoidea) in a coastal lagoon (Portugal, SW)
2023-07-04T14:22:41+02:00
Teresa Portela
tmportela@fc.ul.pt
Dénnis Cruz
denniscruz411@gmail.com
Rui Monteiro
rmmonteiro@fc.ul.pt
Maria João Correia
mjcorreia@fc.ul.pt
José Lino Costa
jlcosta@fc.ul.pt
Isabel Domingos
idomingos@fc.ul.pt
<p>The green crab (<em>Carcinus maenas</em>) population was investigated in a coastal lagoon (Santo André) located on the southwest coast of Portugal. This study assessed the spatial-temporal variability of green crab abundance in the lagoon and its relationship with environmental variables. Experimental fishing was used to collect data on abundance, size structure and other demographic characteristics. Sampling was conducted monthly in 2019 at five sites, using fyke nets. From a total of 15063 individuals collected, 3898 were analysed. The highest catches were obtained in winter and at sites closer to the sea. The population was male-biased (58.70% of males and 41.30% of females), with an average carapace width of 48.81 mm for males and 40.79 mm for females. Ovigerous females were most abundant in December and January, and 50% were sexually mature at 45.11 mm. Based on data from the experimental fishing and fishermen’s logbooks, the estimated annual catch of green crab ranged from 1873 to 3354 kg/ha, confirming the potential value of its fishery in the lagoon. This resource can be exploited for multiple purposes, including its meat or shell waste, thus contributing to the circular economy. Considering that green crab is a bycatch of the eel fishery, fishing regulations need to be modified to safeguard the stocks of both species.</p>
2023-07-04T00:00:00+02:00
Copyright (c) 2023 Consejo Superior de Investigaciones Científicas (CSIC)