Claudia Bustamante López, M. Fernández, G. M. Lugioyo, Sandra Loza Álvarez
En los ecosistemas costeros los analisis del fitoplancton permiten pronosticar cambios del estado trofico. Este trabajo se propuso caracterizar la estructura y composicion de comunidades fitoplanctonicas como indicadoras del estado trofico y describir variaciones interanuales y espaciales del fitoplancton relacionadas con factores abioticos en las Playas del Este. Se ubicaron 11 estaciones y se determino la estructura fitoplanctonica a partir de muestras de fitoplancton de red y de botella. Los flagelados y el genero Navicula sp. mantuvieron una presencia espacio-temporal constante en la etapa muestreada. Otros generos y especies que tambien mostraron una alta frecuencia de aparicion en febrero y julio del ano 2011 y febrero y agosto del ano 2012 fueron: Scrippsiella trochoidea y Gymnodinium sp. Se detectaron organismos potencialmente nocivos como: Oscillatoria sp., S. trochoidea, Akashiwo sanguinea, Alexandrium sp. y Gambierdiscus sp., sobre todo en los meses de febrero de ambos anos. La contribucion por grupos a la comunidad fitoplanctonica en ambos anos mostro un predominio de los flagelados (mas del 50%), con un escaso aporte de diatomeas y dinoflagelados al total de la comunidad (menos del 25%). La principal afectacion al desarrollo fitoplanctonico se debe a la disponibilidad de nitrogeno y fosforo. Las estaciones Tropicoco, Tarara y Bacuranao son las de mayor densidad fitoplanctonica para ambos anos. Existio poca diferenciacion entre epocas del 2011 (R = 0.465) y 2012 (R = 0.212) y estaciones por cada periodo climatico (R = 0.324). El estado trofico de las aguas se clasifico en los anos 2011 y 2012 como oligomesotroficas.
{"title":"Comunidades fitoplanctónicas indicadoras del estado trófico en las Playas del Este, La Habana, Cuba","authors":"Claudia Bustamante López, M. Fernández, G. M. Lugioyo, Sandra Loza Álvarez","doi":"10.15359/REVMAR.8-2.5","DOIUrl":"https://doi.org/10.15359/REVMAR.8-2.5","url":null,"abstract":"En los ecosistemas costeros los analisis del fitoplancton permiten pronosticar cambios del estado trofico. Este trabajo se propuso caracterizar la estructura y composicion de comunidades fitoplanctonicas como indicadoras del estado trofico y describir variaciones interanuales y espaciales del fitoplancton relacionadas con factores abioticos en las Playas del Este. Se ubicaron 11 estaciones y se determino la estructura fitoplanctonica a partir de muestras de fitoplancton de red y de botella. Los flagelados y el genero Navicula sp. mantuvieron una presencia espacio-temporal constante en la etapa muestreada. Otros generos y especies que tambien mostraron una alta frecuencia de aparicion en febrero y julio del ano 2011 y febrero y agosto del ano 2012 fueron: Scrippsiella trochoidea y Gymnodinium sp. Se detectaron organismos potencialmente nocivos como: Oscillatoria sp., S. trochoidea, Akashiwo sanguinea, Alexandrium sp. y Gambierdiscus sp., sobre todo en los meses de febrero de ambos anos. La contribucion por grupos a la comunidad fitoplanctonica en ambos anos mostro un predominio de los flagelados (mas del 50%), con un escaso aporte de diatomeas y dinoflagelados al total de la comunidad (menos del 25%). La principal afectacion al desarrollo fitoplanctonico se debe a la disponibilidad de nitrogeno y fosforo. Las estaciones Tropicoco, Tarara y Bacuranao son las de mayor densidad fitoplanctonica para ambos anos. Existio poca diferenciacion entre epocas del 2011 (R = 0.465) y 2012 (R = 0.212) y estaciones por cada periodo climatico (R = 0.324). El estado trofico de las aguas se clasifico en los anos 2011 y 2012 como oligomesotroficas.","PeriodicalId":52058,"journal":{"name":"REVMAR-Revista Ciencias Marinas y Costeras","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2016-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.15359/REVMAR.8-2.5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66946629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Durante el desarrollo del proyecto “Caracterizacion ambiental en el area de interes dentro del bloque Guajira Offshore # 3, Caribe colombiano”, se recolectaron ejemplares de Munidopsis bermudezi Chace, 1939. Este es el primer registro de la especie para el mar Caribe colombiano, siendo esta la especie 46 de la superfamilia Galatheoidea registrada para esta region. Es una de las especies cercanas a Munidopsis teretis Baba, 2005, del mar de Tasmania. Se diferencia por la presencia de un par de espinas gastricas conspicuas, la ausencia de un proceso agudo en la region branquial y la ausencia de una carina en la mitad posterior del caparazon. Se presentan la descripcion ampliada de la especie y la informacion sobre su habitat.
{"title":"Presencia de Munidopsis bermudezi en el mar Caribe colombiano (Crustacea: Anomura: Munidopsidae)","authors":"William Zubiría, N. Campos, Adriana Bermúdez","doi":"10.15359/REVMAR.8-2.4","DOIUrl":"https://doi.org/10.15359/REVMAR.8-2.4","url":null,"abstract":"Durante el desarrollo del proyecto “Caracterizacion ambiental en el area de interes dentro del bloque Guajira Offshore # 3, Caribe colombiano”, se recolectaron ejemplares de Munidopsis bermudezi Chace, 1939. Este es el primer registro de la especie para el mar Caribe colombiano, siendo esta la especie 46 de la superfamilia Galatheoidea registrada para esta region. Es una de las especies cercanas a Munidopsis teretis Baba, 2005, del mar de Tasmania. Se diferencia por la presencia de un par de espinas gastricas conspicuas, la ausencia de un proceso agudo en la region branquial y la ausencia de una carina en la mitad posterior del caparazon. Se presentan la descripcion ampliada de la especie y la informacion sobre su habitat.","PeriodicalId":52058,"journal":{"name":"REVMAR-Revista Ciencias Marinas y Costeras","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2016-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66946482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marlene González-González, Vicencio De La Cruz-Francisco, Itzel Morales-Quijano, Rosa Estela Orduña-Medrano
Benthic coverage is an important attribute for the efficient management of coral reefs. However, many marine ecosystems of Veracruz still lack this information and Enmedio reef is a clear example. For this reason, the benthic diversity and benthic coverage were estimated on the front reef, back reef and reef lagoon. One m2 quadrants were used and placed every 5 m on 3 transects of 50 m long. The species richness, evenness, Simpson index, Shannon’s diversity index and true diversity were estimated with the data collected. In addition, significant differences were determined using similarity and ordination analysis. The average biotic coverage estimated for the reef was 37.3%; mainly corals stand out with the most coverage, 19.8% (±18.8). The most important species in coverage were: Orbicella annularis, Erytropodium caribaeorum, Colpophyllia natans and Pseudodiploria clivosa. Reef environments are significantly different regarding biotic composition and coverage based on similarity and ordination analysis. For instance, a greater number of species and coverage, basically massive corals, were recorded in the back reef, while several benthic areas were found in the reef flatland, with a tendency to be more equitable and with a greater number of effective species. Finally, diversity, coverage and evenness decrease in the front reef due to the predominant presence of pavement. These differences registered in Enmedio reef regarding coverage by species and reef environment seem to be normal since they have also been reported for several other reefs from the Veracruz reef system.
{"title":"Diversidad y cobertura de la comunidad bentónica del arrecife Enmedio, Sistema Arrecifal Lobos-Tuxpan, México","authors":"Marlene González-González, Vicencio De La Cruz-Francisco, Itzel Morales-Quijano, Rosa Estela Orduña-Medrano","doi":"10.15359/revmar.8-2.3","DOIUrl":"https://doi.org/10.15359/revmar.8-2.3","url":null,"abstract":"Benthic coverage is an important attribute for the efficient management of coral reefs. However, many marine ecosystems of Veracruz still lack this information and Enmedio reef is a clear example. For this reason, the benthic diversity and benthic coverage were estimated on the front reef, back reef and reef lagoon. One m2 quadrants were used and placed every 5 m on 3 transects of 50 m long. The species richness, evenness, Simpson index, Shannon’s diversity index and true diversity were estimated with the data collected. In addition, significant differences were determined using similarity and ordination analysis. The average biotic coverage estimated for the reef was 37.3%; mainly corals stand out with the most coverage, 19.8% (±18.8). The most important species in coverage were: Orbicella annularis, Erytropodium caribaeorum, Colpophyllia natans and Pseudodiploria clivosa. Reef environments are significantly different regarding biotic composition and coverage based on similarity and ordination analysis. For instance, a greater number of species and coverage, basically massive corals, were recorded in the back reef, while several benthic areas were found in the reef flatland, with a tendency to be more equitable and with a greater number of effective species. Finally, diversity, coverage and evenness decrease in the front reef due to the predominant presence of pavement. These differences registered in Enmedio reef regarding coverage by species and reef environment seem to be normal since they have also been reported for several other reefs from the Veracruz reef system.","PeriodicalId":52058,"journal":{"name":"REVMAR-Revista Ciencias Marinas y Costeras","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2016-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.15359/revmar.8-2.3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66946347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The implementation of Marine Areas for Responsible Fishing (MARF) is a tool for fisheries management; therefore, baseline studies play an important role in understanding the ecological dynamics from the bases of the food web in the MARF. The aim of this study was to identify the abundance of the phytoplankton communities associated with the MARF to determine the seasonal changes between abiotic variables and phytoplankton in the Paquera-Tambor MARF, Gulf of Nicoya, Costa Rica. Monthly sampling (September 2013 to August 2014) was performed for physical-chemical factors and phytoplankton. The data showed a temporal variation of both environmental factors and the phytoplankton community. The most representative microalgae were diatoms and dinoflagellates with a richness of 51 and 32 species, respectively, where the presence of some algal bloom forming species such as Cochlodinium catenatum was highlighted, with a concentration of 5.85x104 cells L-1. Regarding diatoms and parameters such as Secchi disk depth (r = -0.558) and the percentage of oxygen saturation (r = -0.490), a negative correlation was found due to climate variability in the area. Zooplanktonic tintinnids were identified and showed a positive correlation with diatoms (r = 0.433). A fundamental ecosystem dynamic was evident for the trophic development of the Tambor-Paquera-MARF, which underpins the importance of the fishing zone and reflects the relevance of continued biotic and abiotic monitoring for the area.
{"title":"Cambios estacionales del fitoplancton en el área marina de pesca responsable de Paquera-Tambor, Golfo de Nicoya, Costa Rica","authors":"A. García-Rojas, Hannia Vega Bolaños","doi":"10.15359/revmar.8-2.2","DOIUrl":"https://doi.org/10.15359/revmar.8-2.2","url":null,"abstract":"The implementation of Marine Areas for Responsible Fishing (MARF) is a tool for fisheries management; therefore, baseline studies play an important role in understanding the ecological dynamics from the bases of the food web in the MARF. The aim of this study was to identify the abundance of the phytoplankton communities associated with the MARF to determine the seasonal changes between abiotic variables and phytoplankton in the Paquera-Tambor MARF, Gulf of Nicoya, Costa Rica. Monthly sampling (September 2013 to August 2014) was performed for physical-chemical factors and phytoplankton. The data showed a temporal variation of both environmental factors and the phytoplankton community. The most representative microalgae were diatoms and dinoflagellates with a richness of 51 and 32 species, respectively, where the presence of some algal bloom forming species such as Cochlodinium catenatum was highlighted, with a concentration of 5.85x104 cells L-1. Regarding diatoms and parameters such as Secchi disk depth (r = -0.558) and the percentage of oxygen saturation (r = -0.490), a negative correlation was found due to climate variability in the area. Zooplanktonic tintinnids were identified and showed a positive correlation with diatoms (r = 0.433). A fundamental ecosystem dynamic was evident for the trophic development of the Tambor-Paquera-MARF, which underpins the importance of the fishing zone and reflects the relevance of continued biotic and abiotic monitoring for the area.","PeriodicalId":52058,"journal":{"name":"REVMAR-Revista Ciencias Marinas y Costeras","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2016-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.15359/revmar.8-2.2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66946263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Una de las actividades que mas se desarrolla en el Parque Nacional Jardines de la Reina (PNJR), ubicado al sur de las provincias de Sancti Spiritus, Ciego de Avila y Camaguey, es el buceo autonomo. Sobre esta base se realizo un estudio acerca de la incidencia de dicha actividad sobre los arrecifes de esta region, especificamente, sobre los corales petreos. Para ello se estudiaron 28 sitios, en 10 dias, lo que permitio comparar zonas de alta, media, baja y sin intensidad de buceo en cuanto al porcentaje de cobertura viva de los corales, mediante 220 transectos lineales y con la observacion de 51 buceadores. En los sitios con alta intensidad de buceo se identificaron 36 especies de corales, siendo las mas abundantes: S. siderea, A. agaricites, P. astreoides, M. alcicornis y O. faveolata. De los 51 buceadores observados, 48 cometieron infracciones: contactos sobre los organismos, resuspension de sedimentos, y en menor medida, danos mecanicos (rompimiento). Las gorgonias fueron los organismos mas contactados, seguidas por los corales. La cantidad de toques por buceador en el PNJR fue de 5.8 toques/min. La capacidad de carga efectiva en el PNJR vario entre 15 y 35 buceadores/sitio/dia. Se infiere que los sitios de buceo del PNJR, a pesar de la incidencia del buceo autonomo sobre ellos, no muestran deterioro. No obstante, se recomienda monitorear los organismos afectados para conocer con precision su evolucion ante las incidencias, asi como cumplir con el numero de buceadores/sitio/dia que se sugiere en este estudio.
在位于Sancti Spiritus、Ciego de Avila和Camaguey省南部的Jardines de la Reina国家公园(PNJR)，最活跃的活动之一是自主潜水。在此基础上，对这一区域的珊瑚礁，特别是石质珊瑚的影响进行了研究。这项研究是在10天内对28个地点进行的，通过220个线性样带和51名潜水员的观察，比较了高、中、低和无潜水强度的珊瑚覆盖率。在潜水强度高的地点，共鉴定出36种珊瑚，其中最丰富的有:S. siderea、A. agaricites、P. astreoides、M. alcicornis和O. faveolata。在观察到的51名潜水员中，有48人违反了规定:与生物接触、沉积物重新浮出水面，以及在较小程度上的机械损伤(破裂)。在这一组中，最常见的生物是珊瑚，其次是珊瑚。在PNJR中，每个潜水员的触碰次数为5.8次/分钟。PNJR的有效载荷能力在15 - 35名潜水员/地点/天之间变化。结果表明，尽管自主潜水的发生率很高，但PNJR潜水地点并没有显示出恶化的迹象。然而，建议监测受影响的生物，以准确了解它们在事件发生前的演变，并遵守本研究中建议的潜水员/地点/天的数量。
{"title":"Incidencia del buceo autónomo y capacidad de carga en sitios de buceo del Parque Nacional Jardines de la Reina, Cuba","authors":"Leslie Hernández Fernández, Yunier M. Olivera Espinosa, Tamara Figueredo Martín, Raúl Gómez Fernández, Leander Brizuela Pardo, Fabián Pina Amargós","doi":"10.15359/REVMAR.8-2.1","DOIUrl":"https://doi.org/10.15359/REVMAR.8-2.1","url":null,"abstract":"Una de las actividades que mas se desarrolla en el Parque Nacional Jardines de la Reina (PNJR), ubicado al sur de las provincias de Sancti Spiritus, Ciego de Avila y Camaguey, es el buceo autonomo. Sobre esta base se realizo un estudio acerca de la incidencia de dicha actividad sobre los arrecifes de esta region, especificamente, sobre los corales petreos. Para ello se estudiaron 28 sitios, en 10 dias, lo que permitio comparar zonas de alta, media, baja y sin intensidad de buceo en cuanto al porcentaje de cobertura viva de los corales, mediante 220 transectos lineales y con la observacion de 51 buceadores. En los sitios con alta intensidad de buceo se identificaron 36 especies de corales, siendo las mas abundantes: S. siderea, A. agaricites, P. astreoides, M. alcicornis y O. faveolata. De los 51 buceadores observados, 48 cometieron infracciones: contactos sobre los organismos, resuspension de sedimentos, y en menor medida, danos mecanicos (rompimiento). Las gorgonias fueron los organismos mas contactados, seguidas por los corales. La cantidad de toques por buceador en el PNJR fue de 5.8 toques/min. La capacidad de carga efectiva en el PNJR vario entre 15 y 35 buceadores/sitio/dia. Se infiere que los sitios de buceo del PNJR, a pesar de la incidencia del buceo autonomo sobre ellos, no muestran deterioro. No obstante, se recomienda monitorear los organismos afectados para conocer con precision su evolucion ante las incidencias, asi como cumplir con el numero de buceadores/sitio/dia que se sugiere en este estudio.","PeriodicalId":52058,"journal":{"name":"REVMAR-Revista Ciencias Marinas y Costeras","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2016-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66946222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Adrián Fagundo Mollineda, María I. Rodríguez García, Kethia L. González García, O. V. Iglesias, Yasnay Hernández Rivera, Á. Alfonso, Odalys Valdés Martínez
Previous studies with the aqueous-ethanol extracts obtained from the marine angiosperms T. testudinum and S. filiforme have shown their high polyphenolic content and marked antioxidant capacity. This study describes the effects of the topical application of the aqueous-ethanol extracts of T. testudinum and S. filiforme leaves against acute UVB-induced damage. The phanerogams used were collected 3-4m deep in La Habana’s northwestern coast. Five experimental groups were created for the administration of the treatment. The effect was evaluated in in vivo assays, radiating the skin of the dorsal region of albino mice with UVB (dose: 1.21x103 Jxcm2) for six minutes. Before or after UVB irradiation, animals received topical treatment with the extracts at doses of both angiosperms 500μg x cm2 on their skin. Significant differences were observed (P ≤ 0.05) between groups: T. testudinum, S. filiforme, irradiated subjects, and “placebo”. T. testudinum and S. filiforme extracts reduce macroscopic damage caused by UVB radiation in irradiated skins on preventive and photodamage models. In addition, these extracts show protective and repair effects against UVB radiation damage, which could be related to their antioxidant action.
对海洋被子植物龙须草(T. testudinum)和丝状海棠(S. filformme)的水乙醇提取物的研究表明，它们具有较高的多酚含量和显著的抗氧化能力。本研究描述了水乙醇提取物局部应用于虎尾草和丝状叶对急性uvb损伤的影响。所使用的照片是在哈瓦那西北海岸3-4米深的地方收集的。创建了五个实验组来进行治疗。在体内试验中，用UVB(剂量:1.21x103 jxxm2)照射白化小鼠背部皮肤6分钟，评估了这种效果。在UVB照射前后，动物接受两种被子植物提取物500μg x cm2剂量的局部皮肤治疗。小鼠弓形虫组、丝状弓形虫组、放疗组和安慰剂组间差异有统计学意义(P≤0.05)。在预防和光损伤模型上，鼠毛霉和丝状霉提取物可降低UVB辐射对皮肤造成的宏观损伤。此外，这些提取物对UVB辐射损伤具有保护和修复作用，这可能与其抗氧化作用有关。
{"title":"Actividad fotoprotectora y fotorreparadora de los extractos de las angiospermas marinas, Thalassia testudinum Banks ex König (Hyrocharitacea) y Syringodium filiforme Kützing (Cymodoceaceae)","authors":"Adrián Fagundo Mollineda, María I. Rodríguez García, Kethia L. González García, O. V. Iglesias, Yasnay Hernández Rivera, Á. Alfonso, Odalys Valdés Martínez","doi":"10.15359/REVMAR.8-1.4","DOIUrl":"https://doi.org/10.15359/REVMAR.8-1.4","url":null,"abstract":"Previous studies with the aqueous-ethanol extracts obtained from the marine angiosperms T. testudinum and S. filiforme have shown their high polyphenolic content and marked antioxidant capacity. This study describes the effects of the topical application of the aqueous-ethanol extracts of T. testudinum and S. filiforme leaves against acute UVB-induced damage. The phanerogams used were collected 3-4m deep in La Habana’s northwestern coast. Five experimental groups were created for the administration of the treatment. The effect was evaluated in in vivo assays, radiating the skin of the dorsal region of albino mice with UVB (dose: 1.21x103 Jxcm2) for six minutes. Before or after UVB irradiation, animals received topical treatment with the extracts at doses of both angiosperms 500μg x cm2 on their skin. Significant differences were observed (P ≤ 0.05) between groups: T. testudinum, S. filiforme, irradiated subjects, and “placebo”. T. testudinum and S. filiforme extracts reduce macroscopic damage caused by UVB radiation in irradiated skins on preventive and photodamage models. In addition, these extracts show protective and repair effects against UVB radiation damage, which could be related to their antioxidant action.","PeriodicalId":52058,"journal":{"name":"REVMAR-Revista Ciencias Marinas y Costeras","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2016-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66945744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A Mw 8.3 earthquake took place in Chile on September 16th, 2015 causing a local tsunami. As a consequence, this earthquake prompted the National Tsunami Monitoring System (SINAMOT) in Costa Rica to conduct a tsunami hazard assessment in order to provide the National Emergency Committee (CNE) with recommendations on how to respond locally to the tsunami. This event represented an exercise to implement SINAMOT Standard Operating Procedures (SOPs) and to use local forecast tools for tsunami heights and currents for the first time, which produced successful results. This paper describes the forecast conducted by SINAMOT, the tools used for the hazard assessment, and the tsunami records in Costa Rica. Along Costa Rica’s continental shores, the tsunami was recorded only by tide gauge instruments, as predicted by SINAMOT. This paper has an operative approach and shows the results in the same format as they are used for decision making processes during the event.
{"title":"Evaluación de la peligrosidad del tsunami de Chile del 16 de setiembre del 2015 para Costa Rica","authors":"Silvia E. Chacón Barrantes","doi":"10.15359/REVMAR.8-1.8","DOIUrl":"https://doi.org/10.15359/REVMAR.8-1.8","url":null,"abstract":"A Mw 8.3 earthquake took place in Chile on September 16th, 2015 causing a local tsunami. As a consequence, this earthquake prompted the National Tsunami Monitoring System (SINAMOT) in Costa Rica to conduct a tsunami hazard assessment in order to provide the National Emergency Committee (CNE) with recommendations on how to respond locally to the tsunami. This event represented an exercise to implement SINAMOT Standard Operating Procedures (SOPs) and to use local forecast tools for tsunami heights and currents for the first time, which produced successful results. This paper describes the forecast conducted by SINAMOT, the tools used for the hazard assessment, and the tsunami records in Costa Rica. Along Costa Rica’s continental shores, the tsunami was recorded only by tide gauge instruments, as predicted by SINAMOT. This paper has an operative approach and shows the results in the same format as they are used for decision making processes during the event.","PeriodicalId":52058,"journal":{"name":"REVMAR-Revista Ciencias Marinas y Costeras","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2016-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.15359/REVMAR.8-1.8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66945970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Harmful Algal Blooms (HABs) events were analyzed in this study at four monitoring stations in the Gulf of Nicoya between January 2008 and December 2010. Water samples were collected at 1 and 5 m deep during each HAB event. Furthermore, the following physicochemical parameters were measured in situ: Secchi disk depth, temperature, salinity, dissolved oxygen, and saturation percentage of oxygen in water. Radiation and precipitation data was provided by the National Meteorological Institute of Costa Rica. The concentration of dominant microalgae and associated species was determined. A total of 11 events were recorded, 72.7% during rainy season and 27.3% during dry season, most of them during the La Nina atmospheric phenomenon. Dominant species included the following dinoflagellates; Alexandrium monilatum, Levanderina fissa, Cochlodinium polykrikoides and Prorocentrum minimum, as well as diatom Skeletonema costatum and cyanobacterium Trichodesmium erythraeum. The most frequent associated species were dinoflagellates Dinophysis caudata, Prorocentrum micans, Tripos fusus, Tripos furca and Protoperidinium conicum. HABs in the Gulf of Nicoya were more frequent during the rainy season, probably due to the contributions of the Tempisque, Barranca and Grande de Tarcoles rivers to the estuarine system. This seasonality, together with the alterations caused by El Nino and La Nina atmospheric phenomena, determined the development of HABs in the Gulf of Nicoya during the study period.
{"title":"Floraciones algales nocivas durante el periodo 2008-2010 en el Golfo de Nicoya, Costa Rica","authors":"E. C. Vargas, Karen Berrocal Artavia, J. Abarca","doi":"10.15359/REVMAR.8-1.9","DOIUrl":"https://doi.org/10.15359/REVMAR.8-1.9","url":null,"abstract":"Harmful Algal Blooms (HABs) events were analyzed in this study at four monitoring stations in the Gulf of Nicoya between January 2008 and December 2010. Water samples were collected at 1 and 5 m deep during each HAB event. Furthermore, the following physicochemical parameters were measured in situ: Secchi disk depth, temperature, salinity, dissolved oxygen, and saturation percentage of oxygen in water. Radiation and precipitation data was provided by the National Meteorological Institute of Costa Rica. The concentration of dominant microalgae and associated species was determined. A total of 11 events were recorded, 72.7% during rainy season and 27.3% during dry season, most of them during the La Nina atmospheric phenomenon. Dominant species included the following dinoflagellates; Alexandrium monilatum, Levanderina fissa, Cochlodinium polykrikoides and Prorocentrum minimum, as well as diatom Skeletonema costatum and cyanobacterium Trichodesmium erythraeum. The most frequent associated species were dinoflagellates Dinophysis caudata, Prorocentrum micans, Tripos fusus, Tripos furca and Protoperidinium conicum. HABs in the Gulf of Nicoya were more frequent during the rainy season, probably due to the contributions of the Tempisque, Barranca and Grande de Tarcoles rivers to the estuarine system. This seasonality, together with the alterations caused by El Nino and La Nina atmospheric phenomena, determined the development of HABs in the Gulf of Nicoya during the study period.","PeriodicalId":52058,"journal":{"name":"REVMAR-Revista Ciencias Marinas y Costeras","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2016-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.15359/REVMAR.8-1.9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66946524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Daril de la Nuez Hernández, Lourdes Pastor Gutiérrez, A. Angulo, Yuliet Piloto Cubero, R. C. Wong
Fish populations of the Syngnathidae family, including the charismatic seahorse, have significantly declined worldwide during the last decades. Up to now, these populations have been poorly researched in their habitat in Cuba. The objective of this study was to determinate site fidelity and home range of the longsnout seahorse (Hippocampus reidi Ginsburg, 1933), which has been poorly studied and has been classified as a Data Deficient (DD) species by the IUCN. Sampling was conducted between April 2009 and August 2010 in two stations located at the dock of Varadero, an artificial channel located northwest of Cuba. Visual census were conducted on 17 transects (20 x 1 m) at each station, and a total of 68 seahorses were identified and tagged with fluorescent elastomers. H. reidi showed site fidelity, with 48.5% of the marked individuals being recaptured close to or on the same transect where they were located the first time. The home range was 70.6 ± 60.1 m (mean ± SD), and no significant differences were found in this variable between both stations or between males and females. These results increase our current knowledge on this seahorse species and show the vulnerability of these populations to potential damages of their restricted habitat.
在过去的几十年里，包括极具魅力的海马在内的Syngnathidae家族的鱼类数量在世界范围内显著下降。到目前为止，对这些种群在古巴的栖息地的研究很少。本研究的目的是确定长鼻海马的地点保真度和栖息地范围(Hippocampus reidi Ginsburg, 1933)，对长鼻海马的研究很少，被世界自然保护联盟(IUCN)归类为数据不足(DD)物种。2009年4月至2010年8月期间，在位于古巴西北部一条人工水道巴拉德罗码头的两个站点进行了抽样。在每个站点对17个样带(20 x 1 m)进行了目测普查，共鉴定了68只海马，并用荧光弹性体进行了标记。reidi具有较高的站点保真度，48.5%的被标记个体被再次捕获时接近或位于它们首次定位的同一样带上。家距为70.6±60.1 m (mean±SD)，两站间、男女间无显著差异。这些结果增加了我们目前对这种海马物种的了解，并显示了这些种群对其有限栖息地的潜在破坏的脆弱性。
{"title":"Fidelidad al sitio y rango de hogar del caballito de mar narizón Hippocampus reidi (Teleostei: Syngnathidae) en la dársena de Varadero, noroeste de Cuba","authors":"Daril de la Nuez Hernández, Lourdes Pastor Gutiérrez, A. Angulo, Yuliet Piloto Cubero, R. C. Wong","doi":"10.15359/REVMAR.8-1.7","DOIUrl":"https://doi.org/10.15359/REVMAR.8-1.7","url":null,"abstract":"Fish populations of the Syngnathidae family, including the charismatic seahorse, have significantly declined worldwide during the last decades. Up to now, these populations have been poorly researched in their habitat in Cuba. The objective of this study was to determinate site fidelity and home range of the longsnout seahorse (Hippocampus reidi Ginsburg, 1933), which has been poorly studied and has been classified as a Data Deficient (DD) species by the IUCN. Sampling was conducted between April 2009 and August 2010 in two stations located at the dock of Varadero, an artificial channel located northwest of Cuba. Visual census were conducted on 17 transects (20 x 1 m) at each station, and a total of 68 seahorses were identified and tagged with fluorescent elastomers. H. reidi showed site fidelity, with 48.5% of the marked individuals being recaptured close to or on the same transect where they were located the first time. The home range was 70.6 ± 60.1 m (mean ± SD), and no significant differences were found in this variable between both stations or between males and females. These results increase our current knowledge on this seahorse species and show the vulnerability of these populations to potential damages of their restricted habitat.","PeriodicalId":52058,"journal":{"name":"REVMAR-Revista Ciencias Marinas y Costeras","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2016-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.15359/REVMAR.8-1.7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66945917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
José A. Villarroel-Moreno, Vanessa Acosta-Balbás, Miguel A. Guevara-Acosta
The analysis of biochemical components in marine species for human consumption is of great importance because it allows knowing the nutritional and energy properties of the organism. The biochemical profile of Arca zebra tissues was evaluated in this research in relation to environmental factors, with the purpose of using this information as an indicator of the reproductive dynamics and fattening periods of this important fishery resource. A total of 20 organisms were analyzed per month between July 2010 and July 2011. Total length (TL) was determined in each organism, and tissues were separated using spectrophotometry, leaving them at a constant weight for biochemical analyzes. TL differences were established monthly, with an annual average of 69.61 mm, staying above commercial size. Differences were detected for carbohydrates and proteins between months, with maximum values in March and July 2011, being the muscle the part with the highest content of both energy substrates, related to high levels of chlorophyll a. An inverse relationship was observed between carbohydrates and proteins in the three tissues in regards to the gonadal mass, suggesting a possible transfer during the reproductive process of A. zebra. The greatest lipid content without monthly variation was recorded in gonads due to the species reproductive synchrony. A. zebra shows its best nutritional condition during the periods from September to December and March to June. Commercialization and consumption is recommended during those months.
{"title":"Movilización y utilización de los sustratos energéticos de Arca zebra (Bivalvia: Arcidae) en relación con el ambiente","authors":"José A. Villarroel-Moreno, Vanessa Acosta-Balbás, Miguel A. Guevara-Acosta","doi":"10.15359/revmar.8-1.5","DOIUrl":"https://doi.org/10.15359/revmar.8-1.5","url":null,"abstract":"The analysis of biochemical components in marine species for human consumption is of great importance because it allows knowing the nutritional and energy properties of the organism. The biochemical profile of Arca zebra tissues was evaluated in this research in relation to environmental factors, with the purpose of using this information as an indicator of the reproductive dynamics and fattening periods of this important fishery resource. A total of 20 organisms were analyzed per month between July 2010 and July 2011. Total length (TL) was determined in each organism, and tissues were separated using spectrophotometry, leaving them at a constant weight for biochemical analyzes. TL differences were established monthly, with an annual average of 69.61 mm, staying above commercial size. Differences were detected for carbohydrates and proteins between months, with maximum values in March and July 2011, being the muscle the part with the highest content of both energy substrates, related to high levels of chlorophyll a. An inverse relationship was observed between carbohydrates and proteins in the three tissues in regards to the gonadal mass, suggesting a possible transfer during the reproductive process of A. zebra. The greatest lipid content without monthly variation was recorded in gonads due to the species reproductive synchrony. A. zebra shows its best nutritional condition during the periods from September to December and March to June. Commercialization and consumption is recommended during those months.","PeriodicalId":52058,"journal":{"name":"REVMAR-Revista Ciencias Marinas y Costeras","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2016-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.15359/revmar.8-1.5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66945809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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