Journal of Marine and Coastal Sciences https://www.revistas.una.ac.cr/index.php/revmar <div id="journalDescription"> <p><strong>BIENVENIDOS/AS</strong><br><br><strong>REVISTA CIENCIAS MARINAS Y COSTERAS (<em>REVMAR</em>)</strong><br><br></p> <p>The purpose of this journal is to publish original papers related to marine science, including biology, geology and marine ecology, oceanography, evolution, systematics and taxonomy of marine organisms, pollution, fisheries, mariculture, marine biotechnology, conservation and integrated management of coastal and marine resources.</p> </div> Universidad Nacional, Costa Rica. en-US Journal of Marine and Coastal Sciences 1659-455X <p>Desde el Volumen 1, Año 2009 hasta el Volumen 8, Número 1, Año 2016</p> <p><a href="http://creativecommons.org/licenses/by-nc-nd/3.0/cr/" rel="license"><img style="border-width: 0;" src="https://i.creativecommons.org/l/by-nc-nd/3.0/cr/88x31.png" alt="Licencia de Creative Commons"></a><br><a href="/revmar%20">Revista Ciencias Marinas y Costeras</a> se encuentra bajo una <a href="http://creativecommons.org/licenses/by-nc-nd/3.0/cr/" rel="license">licencia de Creative Commons Reconocimiento-NoComercial-SinObraDerivada 3.0 Costa Rica</a>.</p> <p>&nbsp;</p> <p>A partir del Volumen 8, Número 2, Año 2016</p> <p><img style="border-width: 0;" src="https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png" alt="Creative Commons License"></p> <p><a href="/index.php/revmar">Revista Ciencias Marinas y Costeras</a> se encuentra bajo una <a href="https://creativecommons.org/licenses/by-nc-sa/4.0/">Licencia Creative Commons Atribución-NoComercial-CompartirIgual 4.0 Internacional</a>.</p> Water quality assessment of reefs in the gulf of Cazones, southern Cuba, using microbiological and chemical indicators https://www.revistas.una.ac.cr/index.php/revmar/article/view/13441 <p>Coral reefs are some of the most threatened ecosystems due to the anthropogenic activity and climate change, from which the Caribbean Sea reefs have not escaped. The objective of this paper was to assess the quality of the waters adjacent to the reefs of the Gulf of Cazones, southern Cuba, using certain microbiological and chemical indicators. Two samplings were conducted in contrasting seasons, November 2015 (winter) and April 2017 (summer), where 13 water samples were taken (five on the ridges and eight on the front reefs). The most vulnerable reefs to environmental deterioration in both seasons, taking into consideration the microbiological and chemical indicators, were Southeast of Cayo Diego Pérez 2 (SE-Cy.DP2), Southeast of Cayo Diego Pérez 1 (SE-Cy.DP1), and South of Cazones Cove (S-EC) (Nirvana), since they had high concentrations of heterotrophic and sulphate-reducing bacteria, vibrio, and organic matter (COD). Based on the heterotrophic bacteria concentration, the trophic state of the waters ranged from mesotrophic to meso-eutrophic and the most deteriorated site resides at the West of the Cazones cove (O-EC), followed by the East of the Cazones cove (E- EC) and South of the Cazones cove (S-EC). This indicates that the waters surrounding these reefs are enriched with organic matter, both on the ridges and on the frontal reefs. The results obtained should serve as a warning because conditions exist for the gradual deterioration of these coral reefs.</p> Gladys Margarita Lugioyo Daymarlen González Ileana García ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-sa/4.0 2020-02-21 2020-02-21 9 26 10.15359/revmar.12-1.1 Abundance, biomass, and structure of demersal ichthyofauna in the Pacific Ocean of Central America, based on fishery prospecting conducted on board the R/V Miguel Oliver https://www.revistas.una.ac.cr/index.php/revmar/article/view/13445 <p>In order to expand knowledge about the structure and composition of demersal ichthyofauna on the Pacific of Central America, we analyzed samples collected from 98 sampling points on board the R/V Miguel Oliver from November 10 to December 16, 2010. Using a Lofoten net, trawl surveys were conducted for 30 minutes at each sampling point at different stratums and depths (1600 m maximum). The total sample (17507 specimens) was represented by cartilaginous fish and bony fish divided into 77 families and 158 species. <em>Dicrolene filamentosa</em> (12.27%) showed the highest abundance; <em>Peprilus medius</em> (35.67%) and <em>Peprilus snyderi</em> (12.49%) reported the most representative biomass along with <em>Rhinoptera steindachneri</em> (9.45%); in addition, <em>Peristedion barbiger</em> and <em>Stomias atriventer</em> were the most frequent species (both 2.71%). The coast between Costa Rica and Panama showed the highest diversity (H':3), while evenness showed uniform values along the studied area. In order to determine fish assemblages in response to depth, a spatial ordering was used showing a 3-set grouping (PERMANOVA, R = 0.54, P&gt; 0.05). Furthermore, a canonical correspondence analysis shows enough evidence that the species distribution was influenced by salinity and temperature. Findings are ecologically significant indicating that ichthyofauna responds to particular environmental conditions and events. In addition, the paper highlights the importance of assemblages to assess how fish populations change as a result of the characteristics exhibited by water bodies</p> Rosario Benavides-Morera Fernando Campos-Calderón José Mauro Vargas-Hernández ##submission.copyrightStatement## 2020-02-21 2020-02-21 24 74 10.15359/revmar.12-1.2 Synchronized sexual reproduction of the seagrass Syringodium filiforme (Cymodoceaceae) in a tropical reef lagoon on the Caribbean coast of Costa Rica https://www.revistas.una.ac.cr/index.php/revmar/article/view/13720 <p>There has been an increasing effort to understand the mechanisms of sexual reproduction in seagrasses, which is usually synchronized. Synchronization is caused by environmental cues, such as temperature and light availability, and most likely occurs to maximize pollination success. At higher latitudes where seagrass reproductive seasons are clearly marked, intraannual variability of environmental triggers is significant. Our aim was to identify the period and frequency of sexual reproduction for the manatee grass <em>Syringodium filiforme</em> in a tropical coral reef lagoon, where the above-mentioned environmental triggers are homogenous all year round. The reproductive state and frequency and shoot length of <em>S. filiforme</em> were measured non-destructively in a monospecific patch on the tropical Caribbean coast of Costa Rica. The meadow was surveyed at 1 to 4-month intervals between May 2010 and May 2012. Water turbidity, temperature, and salinity were measured in situ. During the surveyed period, sexual reproduction of<em> S. filiforme</em> was detected in February and May, while seagrass shoot length showed no variation. The moment of seagrass sexual reproduction was not fully explained by the environmental parameters studied. Regardless of the limited environmental variability compared to previous studies at higher latitudes, synchronization of seagrass sexual reproduction at this tropical location is interesting and requires further studies on mechanisms and its possible adaptive advantage.</p> Jimena Samper-Villarreal Margarita Loría-Naranjo Brigitta Ine van Tussenbroek Jorge Cortés ##submission.copyrightStatement## 2020-02-21 2020-02-21 49 68 10.15359/revmar.12-1.3 Updated list of marine benthic flora from five coral reefs in northern Veracruz, Mexico https://www.revistas.una.ac.cr/index.php/revmar/article/view/13767 <p>Marine macrophytobenthos plays an important role in coral reefs; however, it is one of the least studied biological groups in the Lobos-Tuxpan Reef System (SALT) in Veracruz, Mexico. Theobjective of the present study was to update the taxonomic list of the algae and phanerogamspecies present in the Tuxpan, Enmedio, Tanhuijo, Lobos, and Oro Verde reefs. During the2014-2018 period, 38 surveys were conducted in the reef lagoon and the deep slopes of the reefs by errant dives. Algae and marine phanerogams were surveyed on five types of substrates: sand, pebbles, coral rocks, seagrasses, and live coral area. In addition, the taxonomic list was complemented with records of species previously reported for SALT. The updated taxonomic list includes 130 species: 2 being Cyanobacteria, 55 Rhodophyta, 23 Ochrophyta, 48 Chlorophyta, and 2 Tracheophyta, represented by <em>Halophila decipiens</em> and <em>Thalassia testudinum</em>. Of the total species, 28 taxa are cited for the first time for the study area. Additionally, <em>Sphorochnus pedunculatus</em> constitutes a new record for the southwest of the Gulf of Mexico. The substrates with the highest algae richness were coral rocks and pebbles. The Lobos, Enmedio, and Tuxpan emerging reefs presented greater floristic wealth. This information represents a good advance in the knowledge of marine flora and can be useful for effective management decision-making, especially for phanerogams, which are in a risk status.</p> Vicencio de la Cruz-Francisco Rosa Estela Orduña-Medrano Marlene González-González ##submission.copyrightStatement## 2020-02-21 2020-02-21 69 97 10.15359/revmar.12-1.4 Nerocila acuminata (Isopoda: Cymothoidae) as an egg capsule parasite of Rostroraja texana: list of known hosts https://www.revistas.una.ac.cr/index.php/revmar/article/view/13795 <p>Isopods of the Cymothoidae family are characterized for being ectoparasites of a wide variety of marine species including the shark and ray group. However, little is known of their interaction with this group. Consequently, this paper is aimed to present the first record of the association of four female <em>N. acuminata</em> isopods (20-28 mm total length, 15-18 mm wide) with two egg capsules of <em>R. texana</em>, found in the stomach of a <em>S. lewini</em> common hammerhead shark. The shark was captured on February 17, 2019 using artisanal fishing in Salinas Punta Roca Partida, southern Veracruz, Mexico. A list of 67 nominal host fish species as well as some unidentified fish is presented including 36 families, 19 orders, and two classes, registered for <em>N. acuminata</em>, which is characteristic of the western Atlantic, and its eastern Pacific counterpart, <em>N. californica</em>. This demonstrates that both isopod species have several host fish; however, a preference for demersal species is observed, highlighting the Sciaenidae family.</p> Luis Fernando Del Moral-Flores Luis Alfredo Sotelo-Sánchez Manuel Ortíz ##submission.copyrightStatement## 2020-02-21 2020-02-21 99 115 10.15359/revmar.12-1.5