Pub Date : 2020-08-14DOI: 10.22370/rbmo.2020.55.1.2351
Nurenskaya Vélez-Arellano, F. García-Domínguez, O. Holguín-Quiñones, Maclovio Obeso-Nieblas
This study analyzed the reproductive cycle of Chiton virgulatus and its relationship with air temperature (AT) sea and surface temperature (SST), photoperiod, and tidal cycle (TC) in Bahia de La Paz, in the coast of the Gulf of California. Monthly samples were collected from September 2008 to September 2009. The parameters recorded included total length, total weight, and gonad weight of each organism; the gonad was processed using a histological technique, and the gonadal index and length at first maturity (L50) were estimated. C. virgulatus displays partial spawning with a reproductive peak in summer and autumn (July to December). The frequency of ripe organisms was associated with rises in SST (30.6 oC), AT (29.9 oC), and TC (68 cm, high tidal), while photoperiod (longer days) regulated the frequency of developing organisms. The length at first maturity was 29.7 mm. Chiton virgulatus is a polyplacophoran species in which high temperatures and high tides influence reproductive timing, while an increase in daylight boosts gonad development.
本研究分析了加利福尼亚湾沿岸巴伊亚德拉巴斯(Bahia de La Paz)奇特鱼(Chiton virgulatus)的繁殖周期及其与气温(AT)、海温和地温(SST)、光周期和潮汐周期(TC)的关系。2008年9月至2009年9月每月采集样本。记录各生物的总长度、总重量、性腺重量等参数;用组织学技术处理性腺，估计性腺指数和初成熟长度(L50)。黄颡鱼部分产卵，夏秋两季(7 ~ 12月)为繁殖高峰。成熟生物的频率与海温(30.6 oC)、温度(29.9 oC)和温度(68 cm，高潮)的升高有关，而光周期(较长的日照)调节发育生物的频率。初熟时长度为29.7 mm。virgulatus是一种多placophoran物种，高温和涨潮影响生殖时间，而日光的增加促进性腺的发育。
{"title":"Reproductive aspects of Chiton virgulatus in Bahía de La Paz, Gulf of California, Mexico","authors":"Nurenskaya Vélez-Arellano, F. García-Domínguez, O. Holguín-Quiñones, Maclovio Obeso-Nieblas","doi":"10.22370/rbmo.2020.55.1.2351","DOIUrl":"https://doi.org/10.22370/rbmo.2020.55.1.2351","url":null,"abstract":"This study analyzed the reproductive cycle of Chiton virgulatus and its relationship with air temperature (AT) sea and surface temperature (SST), photoperiod, and tidal cycle (TC) in Bahia de La Paz, in the coast of the Gulf of California. Monthly samples were collected from September 2008 to September 2009. The parameters recorded included total length, total weight, and gonad weight of each organism; the gonad was processed using a histological technique, and the gonadal index and length at first maturity (L50) were estimated. C. virgulatus displays partial spawning with a reproductive peak in summer and autumn (July to December). The frequency of ripe organisms was associated with rises in SST (30.6 oC), AT (29.9 oC), and TC (68 cm, high tidal), while photoperiod (longer days) regulated the frequency of developing organisms. The length at first maturity was 29.7 mm. Chiton virgulatus is a polyplacophoran species in which high temperatures and high tides influence reproductive timing, while an increase in daylight boosts gonad development.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44737055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-14DOI: 10.22370/rbmo.2020.55.1.2393
Gilberto G Ortega-Lizárraga, G. Rodríguez-Domínguez, Raúl Pérez-González, E. A. Aragón-Noriega, J. E. Mendívil-Mendoza
En el sureste del golfo de California, en el estado de Sinaloa, la pesqueria de las jaibas Callinectes arcuatus y C. bellicosus es la segunda mas importante para los pescadores riberenos, despues de la pesqueria del camaron. Su captura se realiza durante casi todo el ano, solo se suspende en los meses de su veda y al inicio de la temporada de pesca del camaron. La pesqueria se realiza en diferentes zonas del estado y representa una gran fuente de ingresos en el sector de pesca riberena, por ello la estimacion de parametros como la biomasa en el maximo rendimiento sostenible (BMRS) y el maximo rendimiento sostenible (MRS) son fundamentales para su manejo sustentable. En la presente investigacion, se utilizo la serie de captura oficial de 1993-2012 para 7 zonas de Sinaloa, Mexico, con la finalidad de detectar posibles problemas de sobre-explotacion del recurso. Los valores de tasa de incremento poblacional (r) calculados por el metodo de captura-MRS variaron entre 0,89 y 1,4, con una capacidad de carga (k) entre 390 y 14.814 t y un MRS de 131 a 3.302 t para las diversas zonas analizadas, mientras que en el analisis para todo el estado se estimo una r de 0,97, k de 32.550 t y un MRS de 7.895 t. En dos de las siete zonas y en la evaluacion global, la biomasa estimada se calculo por debajo de la BMRS, por lo que se recomienda la reduccion de la captura por debajo del limite inferior calculado al 95%, con el objetivo de que el stock pueda regenerarse.
{"title":"Análisis de la pesquería de jaiba en la región sureste del golfo de California, México","authors":"Gilberto G Ortega-Lizárraga, G. Rodríguez-Domínguez, Raúl Pérez-González, E. A. Aragón-Noriega, J. E. Mendívil-Mendoza","doi":"10.22370/rbmo.2020.55.1.2393","DOIUrl":"https://doi.org/10.22370/rbmo.2020.55.1.2393","url":null,"abstract":"En el sureste del golfo de California, en el estado de Sinaloa, la pesqueria de las jaibas Callinectes arcuatus y C. bellicosus es la segunda mas importante para los pescadores riberenos, despues de la pesqueria del camaron. Su captura se realiza durante casi todo el ano, solo se suspende en los meses de su veda y al inicio de la temporada de pesca del camaron. La pesqueria se realiza en diferentes zonas del estado y representa una gran fuente de ingresos en el sector de pesca riberena, por ello la estimacion de parametros como la biomasa en el maximo rendimiento sostenible (BMRS) y el maximo rendimiento sostenible (MRS) son fundamentales para su manejo sustentable. En la presente investigacion, se utilizo la serie de captura oficial de 1993-2012 para 7 zonas de Sinaloa, Mexico, con la finalidad de detectar posibles problemas de sobre-explotacion del recurso. Los valores de tasa de incremento poblacional (r) calculados por el metodo de captura-MRS variaron entre 0,89 y 1,4, con una capacidad de carga (k) entre 390 y 14.814 t y un MRS de 131 a 3.302 t para las diversas zonas analizadas, mientras que en el analisis para todo el estado se estimo una r de 0,97, k de 32.550 t y un MRS de 7.895 t. En dos de las siete zonas y en la evaluacion global, la biomasa estimada se calculo por debajo de la BMRS, por lo que se recomienda la reduccion de la captura por debajo del limite inferior calculado al 95%, con el objetivo de que el stock pueda regenerarse.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43898202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-14DOI: 10.22370/rbmo.2020.55.1.2372
María José Alderete-Macal, J. Caraveo-Patiño, E. M. Hoyos-Padilla
Carcharodon carcharias is a protected species occupying the apex of most marine foodwebs where they are present. Aggregation areas, such as Guadalupe Island, Mexico, that have been related to feeding events, are of special interest for this species conservation. The aim of this study was to describe the fatty acid profile of C. carcharias ' muscle for the first time on Guadalupe Island, using non-lethal biopsy methods to determine ontogenetic and sex differences in relation to diet and habitat use. Fatty acid profiles and biomarkers from different individuals are explored as a source of integrated information of their diet. Analysis of the fatty acid composition of individuals with varying total lengths (2.3-5.0 m) suggested a dietary shift between juveniles and adults occurring at aproximately 3 m. Fatty acid biomarkers indicated a higher degree of carnivorism in adults than in juveniles. Additionally, these ecological tracers suggested that juveniles feed in shallow waters close to the coast, while adults feed in deep waters along inshore and offshore areas. This study represents a first step towards using fatty acid composition as a relevant tool for further understanding dietary shifts and habitat use throughout the ontogeny of C. carcharias . However, to corroborate this, further studies with larger sample sizes are required.
{"title":"Ontogenetic differences in muscle fatty acid profile of white sharks Carcharodon carcharias off Guadalupe Island, México","authors":"María José Alderete-Macal, J. Caraveo-Patiño, E. M. Hoyos-Padilla","doi":"10.22370/rbmo.2020.55.1.2372","DOIUrl":"https://doi.org/10.22370/rbmo.2020.55.1.2372","url":null,"abstract":"Carcharodon carcharias is a protected species occupying the apex of most marine foodwebs where they are present. Aggregation areas, such as Guadalupe Island, Mexico, that have been related to feeding events, are of special interest for this species conservation. The aim of this study was to describe the fatty acid profile of C. carcharias ' muscle for the first time on Guadalupe Island, using non-lethal biopsy methods to determine ontogenetic and sex differences in relation to diet and habitat use. Fatty acid profiles and biomarkers from different individuals are explored as a source of integrated information of their diet. Analysis of the fatty acid composition of individuals with varying total lengths (2.3-5.0 m) suggested a dietary shift between juveniles and adults occurring at aproximately 3 m. Fatty acid biomarkers indicated a higher degree of carnivorism in adults than in juveniles. Additionally, these ecological tracers suggested that juveniles feed in shallow waters close to the coast, while adults feed in deep waters along inshore and offshore areas. This study represents a first step towards using fatty acid composition as a relevant tool for further understanding dietary shifts and habitat use throughout the ontogeny of C. carcharias . However, to corroborate this, further studies with larger sample sizes are required.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44824445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-17DOI: 10.22370/rbmo.2019.54.3.2010
M. D. L. Fuente, V. Faúndez
El cultivo de moluscos bivalvos en sistemas controlados requiere un adecuado control de mortalidades en estados larvales debido a infecciones bacterianas. En este trabajo se investigo la actividad de bacterias marinas provenientes de zonas costeras de la provincia de Arauco, Chile para ser usadas como potencial biocontrolador en sistemas artificiales de cultivo. Se realizo el muestreo de diferentes matrices comunmente asociadas a moluscos bivalvos en su estado natural y se procedio al aislamiento de bacterias marinas. Se evaluo la capacidad de estas bacterias para inhibir 3 bacterias patogenas asociadas normalmente al cultivo de moluscos bivalvos, Vibrio anguillarum , Vibrio splendidus y Vibrio parahaemolyticus . Ademas, se realizo una caracterizacion fenotipica de las cepas con actividad inhibitoria, considerando sus propiedades de inocuidad y crecimiento, para la utilizacion practica de estas cepas en sistemas de cultivo. De las 70 bacterias aisladas, 3 cepas fueron capaces de inhibir al menos un patogeno bacteriano, logrando crecer en agua marina. La caracterizacion fenotipica de estas 3 cepas permitio catalogarlas como pertenecientes a los generos Vibrio y Pseudomonas. Una cepa marina fue totalmente inocua segun las caracteristicas evaluadas in vitro . Por tanto, es factible seleccionar bacterias con propiedades inhibitorias y de inocuidad para un potencial biocontrol en cultivos de moluscos bivalvos en la provincia de Arauco.
{"title":"Evaluación in vitro de bacterias marinas para potencial biocontrol en cultivo de moluscos bivalvos","authors":"M. D. L. Fuente, V. Faúndez","doi":"10.22370/rbmo.2019.54.3.2010","DOIUrl":"https://doi.org/10.22370/rbmo.2019.54.3.2010","url":null,"abstract":"El cultivo de moluscos bivalvos en sistemas controlados requiere un adecuado control de mortalidades en estados larvales debido a infecciones bacterianas. En este trabajo se investigo la actividad de bacterias marinas provenientes de zonas costeras de la provincia de Arauco, Chile para ser usadas como potencial biocontrolador en sistemas artificiales de cultivo. Se realizo el muestreo de diferentes matrices comunmente asociadas a moluscos bivalvos en su estado natural y se procedio al aislamiento de bacterias marinas. Se evaluo la capacidad de estas bacterias para inhibir 3 bacterias patogenas asociadas normalmente al cultivo de moluscos bivalvos, Vibrio anguillarum , Vibrio splendidus y Vibrio parahaemolyticus . Ademas, se realizo una caracterizacion fenotipica de las cepas con actividad inhibitoria, considerando sus propiedades de inocuidad y crecimiento, para la utilizacion practica de estas cepas en sistemas de cultivo. De las 70 bacterias aisladas, 3 cepas fueron capaces de inhibir al menos un patogeno bacteriano, logrando crecer en agua marina. La caracterizacion fenotipica de estas 3 cepas permitio catalogarlas como pertenecientes a los generos Vibrio y Pseudomonas. Una cepa marina fue totalmente inocua segun las caracteristicas evaluadas in vitro . Por tanto, es factible seleccionar bacterias con propiedades inhibitorias y de inocuidad para un potencial biocontrol en cultivos de moluscos bivalvos en la provincia de Arauco.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42483626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-17DOI: 10.22370/rbmo.2019.54.3.2009
Carlos González-Gándara, José de Jesús Salas-Pérez
Se caracteriza el sustrato bentonico del arrecife Tuxpan, Veracruz, Mexico con enfasis en la comunidad de corales escleractinios para definir el patron de riqueza y cobertura coralina de las formaciones tipo plataforma de Veracruz.117 fototransectos, fueron distribuidos en 4 zonas y 16 ambientes arrecifales durante 2015. Se tomaron un total de 2.920 fotografias sobre transectos de 25 m para estimar la cobertura con el programa Coral Point Count. La riqueza y cobertura coralina fueron comparadas para determinar su semejanza entre zonas y ambientes arrecifales, a partir de los grupos morfo funcionales (GMF), usando pruebas estadisticas o ecologicas. 36 especies componen la comunidad de corales escleractinios y la riqueza coralina mostro diferencias entre zonas, siendo mayor en las pendientes. De acuerdo con el analisis de escalamiento multidimensional no metrico (NMDS) y ANOSIM, los GMF y la cobertura especifica de corales caracterizaron 4 zonas arrecifales: planicie, cresta, pendiente de barlovento y pendiente de sotavento. La cobertura coralina en sotavento, es inversamente proporcional a la profundidad, donde los valores mas altos fueron observados entre 3 y 15 m. En barlovento, no se evidencio una relacion de la cobertura coralina con la profundidad y los valores mas altos se registraron entre 10 y 20 m. La caracterizacion de las zonas del arrecife Tuxpan puede servir como modelo de los arrecifes tipo plataforma de Veracruz asi como para los planes de manejo de esta Area Natural Protegida, especialmente en las actividades de esnorquel y buceo.
{"title":"Caracterización del sustrato bentónico del arrecife Tuxpan, Veracruz, México, con énfasis en la comunidad de corales escleractinios","authors":"Carlos González-Gándara, José de Jesús Salas-Pérez","doi":"10.22370/rbmo.2019.54.3.2009","DOIUrl":"https://doi.org/10.22370/rbmo.2019.54.3.2009","url":null,"abstract":"Se caracteriza el sustrato bentonico del arrecife Tuxpan, Veracruz, Mexico con enfasis en la comunidad de corales escleractinios para definir el patron de riqueza y cobertura coralina de las formaciones tipo plataforma de Veracruz.117 fototransectos, fueron distribuidos en 4 zonas y 16 ambientes arrecifales durante 2015. Se tomaron un total de 2.920 fotografias sobre transectos de 25 m para estimar la cobertura con el programa Coral Point Count. La riqueza y cobertura coralina fueron comparadas para determinar su semejanza entre zonas y ambientes arrecifales, a partir de los grupos morfo funcionales (GMF), usando pruebas estadisticas o ecologicas. 36 especies componen la comunidad de corales escleractinios y la riqueza coralina mostro diferencias entre zonas, siendo mayor en las pendientes. De acuerdo con el analisis de escalamiento multidimensional no metrico (NMDS) y ANOSIM, los GMF y la cobertura especifica de corales caracterizaron 4 zonas arrecifales: planicie, cresta, pendiente de barlovento y pendiente de sotavento. La cobertura coralina en sotavento, es inversamente proporcional a la profundidad, donde los valores mas altos fueron observados entre 3 y 15 m. En barlovento, no se evidencio una relacion de la cobertura coralina con la profundidad y los valores mas altos se registraron entre 10 y 20 m. La caracterizacion de las zonas del arrecife Tuxpan puede servir como modelo de los arrecifes tipo plataforma de Veracruz asi como para los planes de manejo de esta Area Natural Protegida, especialmente en las actividades de esnorquel y buceo.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44181492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-17DOI: 10.22370/rbmo.2019.54.3.2031
Erik Coria-Monter, M. A. Monreal‐Gómez, D. S. Leon, Elizabeth Durán-Campos
Information on selected bio-optical properties and primary production values of the waters of the Bay of La Paz, southern Gulf of California, is reported during June 2004, a region characterized to have very rich biodiversity, including endemic and endangered species, with high ecological relevance. In-situ measurements of natural fluorescence and photosynthetically available radiation (PAR) enabled the subsequent calculation of the incident irradiance ( E 0 ), the light extinction coefficient ( k ), compensation depth ( Z c ) and critical depth ( Z cr ). The results suggest the presence of light propitious conditions for phytoplankton community growth and net primary production, which are highly significant for the potential development of models of light penetration, ocean color, primary productivity, and analyses of organic carbon energy flow.
{"title":"Bio-optical characterization of the waters of the Bay of La Paz, southern Gulf of California, during late spring 2004","authors":"Erik Coria-Monter, M. A. Monreal‐Gómez, D. S. Leon, Elizabeth Durán-Campos","doi":"10.22370/rbmo.2019.54.3.2031","DOIUrl":"https://doi.org/10.22370/rbmo.2019.54.3.2031","url":null,"abstract":"Information on selected bio-optical properties and primary production values of the waters of the Bay of La Paz, southern Gulf of California, is reported during June 2004, a region characterized to have very rich biodiversity, including endemic and endangered species, with high ecological relevance. In-situ measurements of natural fluorescence and photosynthetically available radiation (PAR) enabled the subsequent calculation of the incident irradiance ( E 0 ), the light extinction coefficient ( k ), compensation depth ( Z c ) and critical depth ( Z cr ). The results suggest the presence of light propitious conditions for phytoplankton community growth and net primary production, which are highly significant for the potential development of models of light penetration, ocean color, primary productivity, and analyses of organic carbon energy flow.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45192748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-17DOI: 10.22370/rbmo.2019.54.3.2024
A. Betanzos-Vega, N. Capetillo-Piñar, Alexander Lopeztegui-Castillo, Y. Garcés-Rodríguez, Arturo Tripp-Quezada
El golfo de Batabano (GB), es la region de la plataforma marina cubana de mayor extension e importancia pesquera. Afectaciones al habitat de especies marinas han sido senaladas como consecuencia de factores naturales y antropicos. El objetivo fue determinar variaciones espacio-temporales significativas en la hidrologia del GB en diferentes periodos y situaciones ambientales. Para ello se analizo la variabilidad de la lluvia y la temperatura del aire en 1975-1995 y 1996-2015 periodos de baja y alta actividad ciclonica, las caracteristicas termohalinas del GB anterior (1959-1970) y posterior (2006-2016) al represamiento fluvial, y el efecto de dos huracanes casi simultaneaos en 2008 (“Gustav” e “Ike”). Diferencias significativas en la variabilidad interanual de parametros meteorologicos entre el norte y el sur del GB respondieron a caracteristicas locales, y ocurrieron cambios en la distribucion de los meses de maximas precipitaciones. El represamiento fluvial, sumado a deficits de precipitacion en primavera, verano e invierno, provocaron aumentos termohalinos en 2006-2016, con incremento de 0,7 °C en la temperatura del agua y de 2,3 en la salinidad promedio del GB, respecto a 1959-1970. La salinidad mostro una ampliacion en la distribucion de valores hipersalinos, y media > 36 en meses de altas precipitaciones, con promedio general de 35,4 en 1959-1970 y 37,7 en 2006-2016, esto sugiere que el represamiento ha sido un factor principal en las variaciones de salinidad. El impacto termohalino en el GB de dos huracanes en 2008, se restablecio en corto plazo, con mayor inercia en la turbidez.
{"title":"Parámetros meteorológicos, represamiento fluvial y huracanes. Variaciones en la hidrología del golfo de Batabanó, Cuba","authors":"A. Betanzos-Vega, N. Capetillo-Piñar, Alexander Lopeztegui-Castillo, Y. Garcés-Rodríguez, Arturo Tripp-Quezada","doi":"10.22370/rbmo.2019.54.3.2024","DOIUrl":"https://doi.org/10.22370/rbmo.2019.54.3.2024","url":null,"abstract":"El golfo de Batabano (GB), es la region de la plataforma marina cubana de mayor extension e importancia pesquera. Afectaciones al habitat de especies marinas han sido senaladas como consecuencia de factores naturales y antropicos. El objetivo fue determinar variaciones espacio-temporales significativas en la hidrologia del GB en diferentes periodos y situaciones ambientales. Para ello se analizo la variabilidad de la lluvia y la temperatura del aire en 1975-1995 y 1996-2015 periodos de baja y alta actividad ciclonica, las caracteristicas termohalinas del GB anterior (1959-1970) y posterior (2006-2016) al represamiento fluvial, y el efecto de dos huracanes casi simultaneaos en 2008 (“Gustav” e “Ike”). Diferencias significativas en la variabilidad interanual de parametros meteorologicos entre el norte y el sur del GB respondieron a caracteristicas locales, y ocurrieron cambios en la distribucion de los meses de maximas precipitaciones. El represamiento fluvial, sumado a deficits de precipitacion en primavera, verano e invierno, provocaron aumentos termohalinos en 2006-2016, con incremento de 0,7 °C en la temperatura del agua y de 2,3 en la salinidad promedio del GB, respecto a 1959-1970. La salinidad mostro una ampliacion en la distribucion de valores hipersalinos, y media > 36 en meses de altas precipitaciones, con promedio general de 35,4 en 1959-1970 y 37,7 en 2006-2016, esto sugiere que el represamiento ha sido un factor principal en las variaciones de salinidad. El impacto termohalino en el GB de dos huracanes en 2008, se restablecio en corto plazo, con mayor inercia en la turbidez.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42411452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-17DOI: 10.22370/rbmo.2019.54.3.2029
Andrés Reátegui-Quispe, D. Pariona-Velarde
Blue shark Prionace glauca is one of the most important elasmobranch species landed and consumed in Peru. Due to its importance as fishery resource, were evaluated lead (Pb), cadmium (Cd), mercury (Hg) and Total Volatile Base Nitrogen (TVBN) in the muscle tissue of 25 specimens, captured in the southern zone of Peruvian sea. These analytes were compared with current regulations and were determined its relationship with sex and total length (TL). We obtained ranges between 0.04-0.25, 0.01-0.04 and 0.09-0.50 mg kg -1 for Pb, Cd and Hg, respectively. TVBN values were between 38.50-94.60 mg TVBN 100 g -1 . Analytes did not have differences with TL and gender. Pb was positive correlation with TL, while the Cd, Hg and TVBN did not. This study provides sanitary information of blue shark muscle from Peruvian waters.
{"title":"Determinación de plomo, cadmio, mercurio y Bases Volátiles Nitrogenadas Totales (NBVT) en el músculo de tiburón azul Prionace glauca procedente de la zona sur del Perú","authors":"Andrés Reátegui-Quispe, D. Pariona-Velarde","doi":"10.22370/rbmo.2019.54.3.2029","DOIUrl":"https://doi.org/10.22370/rbmo.2019.54.3.2029","url":null,"abstract":"Blue shark Prionace glauca is one of the most important elasmobranch species landed and consumed in Peru. Due to its importance as fishery resource, were evaluated lead (Pb), cadmium (Cd), mercury (Hg) and Total Volatile Base Nitrogen (TVBN) in the muscle tissue of 25 specimens, captured in the southern zone of Peruvian sea. These analytes were compared with current regulations and were determined its relationship with sex and total length (TL). We obtained ranges between 0.04-0.25, 0.01-0.04 and 0.09-0.50 mg kg -1 for Pb, Cd and Hg, respectively. TVBN values were between 38.50-94.60 mg TVBN 100 g -1 . Analytes did not have differences with TL and gender. Pb was positive correlation with TL, while the Cd, Hg and TVBN did not. This study provides sanitary information of blue shark muscle from Peruvian waters.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44950151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-17DOI: 10.22370/rbmo.2019.54.3.2025
Jesús Rodríguez-Romero, J. López-Martínez, Mario Díaz, Eloisa Herrera-Valdivia
This study provides information on feeding habits of the lizardfish Synodus scituliceps , one of the most abundant and frequent species in shrimp by-catch in the demersal area in the eastern coast of the Gulf of California, Mexico. Stomach content analyses were performed on 114 organisms caught from August 2004 to March 2005, and Levin's index was applied. The most important prey species were benthic fishes: Eucinostomus currani, Opisthonema libertate, Synodus lucioceps and Paralichthys californicus. According to the Levin’s index ( B i = 0.39), S. scituliceps is a piscivorous specialist predator in soft bottoms, with similar diet in juveniles and adults.
本研究提供了墨西哥加利福尼亚湾东岸底栖区虾副渔获物中最丰富和最常见的一种蜥蜴鱼(Synodus scituliceps)的食性信息。对2004年8月至2005年3月捕获的114种生物进行胃内容物分析，采用莱文指数。最重要的猎物种类是底栖鱼类:阔尾鳞鱼(Eucinostomus currani)、自由鳞鱼(Opisthonema libertate)、露头鳞鱼(Synodus lucioceps)和加州副鱼(parichthys californicus)。根据莱文指数(bi = 0.39)， S. scituliceps是一种专门捕食软底鱼的鱼食性捕食者，幼鱼和成年鱼的饮食相似。
{"title":"Dieta del pez chile lucio Synodus scituliceps (Aulopiformes: Synodontidae) en la Costa Este del Golfo de California, México","authors":"Jesús Rodríguez-Romero, J. López-Martínez, Mario Díaz, Eloisa Herrera-Valdivia","doi":"10.22370/rbmo.2019.54.3.2025","DOIUrl":"https://doi.org/10.22370/rbmo.2019.54.3.2025","url":null,"abstract":"This study provides information on feeding habits of the lizardfish Synodus scituliceps , one of the most abundant and frequent species in shrimp by-catch in the demersal area in the eastern coast of the Gulf of California, Mexico. Stomach content analyses were performed on 114 organisms caught from August 2004 to March 2005, and Levin's index was applied. The most important prey species were benthic fishes: Eucinostomus currani, Opisthonema libertate, Synodus lucioceps and Paralichthys californicus. According to the Levin’s index ( B i = 0.39), S. scituliceps is a piscivorous specialist predator in soft bottoms, with similar diet in juveniles and adults.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47479703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-17DOI: 10.22370/rbmo.2019.54.3.2027
L. E. Rodríguez-Ibarra, M. I. Parra, Leonardo Ibarra-Castro, J. M. Martínez-Brown, Gabriela Velasco-Blanco, Gabriela Aguilar-Zárate
Osteological development of the vertebral column, caudal complex and median fins in larvae of the bullseye puffer fish, Sphoeroides annulatus , were studied using specimens cleared and double stained for bone and cartilage. The first cartilaginous structures appeared 10 days (4.2 mm NL) after hatching and by day 28 (14.9 mm TL) most of the bone elements had already formed. Sphoeroides annulatus exhibited fusion of bone elements, the same as other Tetradontiformes, one of the most evolved teleosts.
{"title":"Desarrollo osteológico de la columna vertebral, complejo caudal y aletas medias del botete diana Sphoeroides annulatus (Tetraodontiformes: Tetraodontidae)","authors":"L. E. Rodríguez-Ibarra, M. I. Parra, Leonardo Ibarra-Castro, J. M. Martínez-Brown, Gabriela Velasco-Blanco, Gabriela Aguilar-Zárate","doi":"10.22370/rbmo.2019.54.3.2027","DOIUrl":"https://doi.org/10.22370/rbmo.2019.54.3.2027","url":null,"abstract":"Osteological development of the vertebral column, caudal complex and median fins in larvae of the bullseye puffer fish, Sphoeroides annulatus , were studied using specimens cleared and double stained for bone and cartilage. The first cartilaginous structures appeared 10 days (4.2 mm NL) after hatching and by day 28 (14.9 mm TL) most of the bone elements had already formed. Sphoeroides annulatus exhibited fusion of bone elements, the same as other Tetradontiformes, one of the most evolved teleosts.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43062884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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