Pub Date : 2021-06-07DOI: 10.22370/RBMO.2021.56.1.2793
V. Montecino, N. Bahamonde, J. A. Vásquez
Alfredo Llana Garin, Profesor de Estado en Ciencias Biologicas y Quimica de la Universidad de Chile (1937), es el precursor del estudio de las algas marinas en Chile. Esta resena recuerda sus inicios, su pionera investigacion en botanica y trabajos en microalgas en aguas limnicas, su contribucion para el desarrollo de la Estacion de Biologia Marina de Montemar, Universidad de Chile y tambien por 20 anos en la Universidad de Panama. El Prof. Llana estudia, asimismo, las macroalgas marinas robusteciendo la importancia de su valor comercial. En la actualidad, Chile es reconocido como uno de lo mas importante proveedores de algas marinas para la extraccion de agar, carragenanos y alginatos, esenciales para la industria alimentaria, cosmetica, y biomedica.
{"title":"Reseña de Alfredo Hipólito Llaña Garín (1913-1971): Primer ficólogo marino chileno","authors":"V. Montecino, N. Bahamonde, J. A. Vásquez","doi":"10.22370/RBMO.2021.56.1.2793","DOIUrl":"https://doi.org/10.22370/RBMO.2021.56.1.2793","url":null,"abstract":"Alfredo Llana Garin, Profesor de Estado en Ciencias Biologicas y Quimica de la Universidad de Chile (1937), es el precursor del estudio de las algas marinas en Chile. Esta resena recuerda sus inicios, su pionera investigacion en botanica y trabajos en microalgas en aguas limnicas, su contribucion para el desarrollo de la Estacion de Biologia Marina de Montemar, Universidad de Chile y tambien por 20 anos en la Universidad de Panama. El Prof. Llana estudia, asimismo, las macroalgas marinas robusteciendo la importancia de su valor comercial. En la actualidad, Chile es reconocido como uno de lo mas importante proveedores de algas marinas para la extraccion de agar, carragenanos y alginatos, esenciales para la industria alimentaria, cosmetica, y biomedica.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47932730","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 : 2021-06-07DOI: 10.22370/RBMO.2021.56.1.2801
L. Martínez, Sebastián Silva, B. Alcorta, A. Pacheco
Although dolphins are mostly known to form single species groups of varying size, occasionally they aggregate in mixedspecies groups. The presence of mixed-species delphinid groups along the Peruvian coast is unknown. Herein, we report the presence of a single pantropical spotted dolphin (Stenella attenuata) within large groups of the long-beaked common dolphin (Delphinus delphis) at Los Organos in the northern coast of Peru. Sightings occurred on October 10th, 2016, January 7th, 2018 and September 21st, 2019. In one sighting the mixed group was feeding, while during the other two sightings the group was travelling. These records add new evidence about mixed-species delphinid groups in coastal waters of Peru.
{"title":"First records of the pantropical spotted dolphin Stenella attenuata, within groups of common dolphins Delphinus delphis in northern Peru","authors":"L. Martínez, Sebastián Silva, B. Alcorta, A. Pacheco","doi":"10.22370/RBMO.2021.56.1.2801","DOIUrl":"https://doi.org/10.22370/RBMO.2021.56.1.2801","url":null,"abstract":"Although dolphins are mostly known to form single species groups of varying size, occasionally they aggregate in mixedspecies groups. The presence of mixed-species delphinid groups along the Peruvian coast is unknown. Herein, we report the presence of a single pantropical spotted dolphin (Stenella attenuata) within large groups of the long-beaked common dolphin (Delphinus delphis) at Los Organos in the northern coast of Peru. Sightings occurred on October 10th, 2016, January 7th, 2018 and September 21st, 2019. In one sighting the mixed group was feeding, while during the other two sightings the group was travelling. These records add new evidence about mixed-species delphinid groups in coastal waters of Peru.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48809232","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 : 2021-06-07DOI: 10.22370/RBMO.2021.56.1.2794
S. Cházaro-Olvera, M. Ortiz, I. Winfield, Brizeida Viveros-Villaseñor
Se analizó la estructura de la población, el crecimiento, la fecundidad y la supervivencia de Nototropis minikoi y Ampithoe longimana en Isla Contoy e Isla Mujeres del caribe mexicano. Se midieron la temperatura, salinidad y oxígeno disuelto in situ. Se recolectaron un total de 2.815 anfípodos de ambas especies: 1.407 de Nototropis minikoi y 1.408 de Ampithoe longimana. La temperatura presentó valores de 26 a 27 °C, salinidad de 35 a 36 unidades y oxígeno disuelto de 6 a 9 mg L-1. Los juveniles representaron el mayor porcentaje con 55 a 73% en N. minikoi y del 57 a 67% en A. longimana. Con el método de Bhattacharya se encontraron de 4 a 5 clases modales. Con el modelo de von Bertalanffy se encontró que las hembras presentaron la mayor longitud máxima con 10,88 mm (k= 0,35) y 14,54 mm (k= 0,24) en N. minikoi y A. longimana, respectivamente. El promedio de huevos fue de 6,83 ± 4,50 a 8,55 ± 5,22 en N. minikoi y 7,55 ± 4,82 a 8,33 ± 3,79 en A. longimana. La supervivencia fue de 13,70 y 36,63% para N. minikoi y de 13,31 y 28,11% para A. longimana, lo cual corresponde a especies con estrategia “r”. Los resultados evidenciaron una relación costo-beneficio entre los parámetros poblacionales, dado que a una tasa de crecimiento lenta y un mayor número de clases modales se alcanzan tamaños máximos mayores.
{"title":"Parámetros poblacionales de Nototropis minikoi y Ampithoe longimana (Crustacea: Amphipoda) en dos Islas del Mar Caribe mexicano","authors":"S. Cházaro-Olvera, M. Ortiz, I. Winfield, Brizeida Viveros-Villaseñor","doi":"10.22370/RBMO.2021.56.1.2794","DOIUrl":"https://doi.org/10.22370/RBMO.2021.56.1.2794","url":null,"abstract":"Se analizó la estructura de la población, el crecimiento, la fecundidad y la supervivencia de Nototropis minikoi y Ampithoe longimana en Isla Contoy e Isla Mujeres del caribe mexicano. Se midieron la temperatura, salinidad y oxígeno disuelto in situ. Se recolectaron un total de 2.815 anfípodos de ambas especies: 1.407 de Nototropis minikoi y 1.408 de Ampithoe longimana. La temperatura presentó valores de 26 a 27 °C, salinidad de 35 a 36 unidades y oxígeno disuelto de 6 a 9 mg L-1. Los juveniles representaron el mayor porcentaje con 55 a 73% en N. minikoi y del 57 a 67% en A. longimana. Con el método de Bhattacharya se encontraron de 4 a 5 clases modales. Con el modelo de von Bertalanffy se encontró que las hembras presentaron la mayor longitud máxima con 10,88 mm (k= 0,35) y 14,54 mm (k= 0,24) en N. minikoi y A. longimana, respectivamente. El promedio de huevos fue de 6,83 ± 4,50 a 8,55 ± 5,22 en N. minikoi y 7,55 ± 4,82 a 8,33 ± 3,79 en A. longimana. La supervivencia fue de 13,70 y 36,63% para N. minikoi y de 13,31 y 28,11% para A. longimana, lo cual corresponde a especies con estrategia “r”. Los resultados evidenciaron una relación costo-beneficio entre los parámetros poblacionales, dado que a una tasa de crecimiento lenta y un mayor número de clases modales se alcanzan tamaños máximos mayores.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42904214","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 : 2021-06-07DOI: 10.22370/RBMO.2021.56.1.2795
Roberto Ramos, Sebastián Gallardo
The removal capacity of dissolved nutrients and growth of the red macroalgae Agarophyton chilense and Mazzaella canaliculata and the green Ulva lactuca were evaluated using the effluents from the Seriola lalandi culture. The three macroalgae species reached high nitrite and phosphate removal values between 84 and 87.5%, respectively. On the other hand, in the removal of ammonia the best results were achieved by U. lactuca and A. chilense, both with 46.4%. In nitrate removal, A. chilense and M. canaliculata achieve efficiencies of 40 and 50%, respectively. In relation to the growth achieved by algae, they show that the daily growth rate of M. canaliculata registered a loss of biomass quantified at 0.29%, while U. lactuca showed an increase of 0.78% and A. chilense reached the best performance with 2.8%. Based on the results obtained, it is possible to conclude on the feasibility of using macroalgae in the removal of nutrients, especially A. chilense, which, also, from the perspective of increasing biomass, the cultivation of A. chilense opens expectations to obtain secondary productions from Seriola lalandi fish farming in an integrated
{"title":"Capacidad de biofiltración de nutrientes y crecimiento de macroalgas utilizando efluentes generados en el cultivo del pez dorado Seriola lalandi (Perciformes: Carangidae)","authors":"Roberto Ramos, Sebastián Gallardo","doi":"10.22370/RBMO.2021.56.1.2795","DOIUrl":"https://doi.org/10.22370/RBMO.2021.56.1.2795","url":null,"abstract":"The removal capacity of dissolved nutrients and growth of the red macroalgae Agarophyton chilense and Mazzaella canaliculata and the green Ulva lactuca were evaluated using the effluents from the Seriola lalandi culture. The three macroalgae species reached high nitrite and phosphate removal values between 84 and 87.5%, respectively. On the other hand, in the removal of ammonia the best results were achieved by U. lactuca and A. chilense, both with 46.4%. In nitrate removal, A. chilense and M. canaliculata achieve efficiencies of 40 and 50%, respectively. In relation to the growth achieved by algae, they show that the daily growth rate of M. canaliculata registered a loss of biomass quantified at 0.29%, while U. lactuca showed an increase of 0.78% and A. chilense reached the best performance with 2.8%. Based on the results obtained, it is possible to conclude on the feasibility of using macroalgae in the removal of nutrients, especially A. chilense, which, also, from the perspective of increasing biomass, the cultivation of A. chilense opens expectations to obtain secondary productions from Seriola lalandi fish farming in an integrated","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44919710","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 : 2021-06-07DOI: 10.22370/RBMO.2021.56.1.2797
Mauricio Salas-Maldonado, E. Espino-Barr, Emigdio Marín-Enríquez, Alberto Bartoleño-Sánchez, Leonardo Daniel Valdez-Carrazco
The selectivity of two types of commercial fishing gear (crab hoop/traditional gear and rigid rectangular cage traps) targeting blue crabs (Callinectes arcuatus) in Cuyutlan Lagoon, Mexico, was assessed. The effect of soak time on crab catches versus the retention and escape rate of organisms was also evaluated. Results suggested that traps captured larger individuals than hoops. The carapace width of crabs was significantly different between the fishing gears used: 63.9% of crabs caught with hoops were < 95 mm (sizes ranged from 40 to 113 mm) and 40.7% of crabs caught with traps were < 95 mm (range: 49 to 120 mm). Results also showed that catch rates were high during the first two hours and decreased after the third hour. The crabs tended to escape after several hours of soak time. The study found that the traps captured larger crabs than the hoops, suggesting that traps are a suitable fishing gear for catching blue swimming crabs in Cuyutlan Lagoon.
{"title":"Size selectivity and optimal soaking time of hoops and traps targeting the blue swimming crab Callinectes arcuatus in Cuyutlan Lagoon, Mexico","authors":"Mauricio Salas-Maldonado, E. Espino-Barr, Emigdio Marín-Enríquez, Alberto Bartoleño-Sánchez, Leonardo Daniel Valdez-Carrazco","doi":"10.22370/RBMO.2021.56.1.2797","DOIUrl":"https://doi.org/10.22370/RBMO.2021.56.1.2797","url":null,"abstract":"The selectivity of two types of commercial fishing gear (crab hoop/traditional gear and rigid rectangular cage traps) targeting blue crabs (Callinectes arcuatus) in Cuyutlan Lagoon, Mexico, was assessed. The effect of soak time on crab catches versus the retention and escape rate of organisms was also evaluated. Results suggested that traps captured larger individuals than hoops. The carapace width of crabs was significantly different between the fishing gears used: 63.9% of crabs caught with hoops were < 95 mm (sizes ranged from 40 to 113 mm) and 40.7% of crabs caught with traps were < 95 mm (range: 49 to 120 mm). Results also showed that catch rates were high during the first two hours and decreased after the third hour. The crabs tended to escape after several hours of soak time. The study found that the traps captured larger crabs than the hoops, suggesting that traps are a suitable fishing gear for catching blue swimming crabs in Cuyutlan Lagoon.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42490299","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 : 2021-06-07DOI: 10.22370/RBMO.2021.56.1.2799
C. S. Ruz, Vladimir Garmendia, Rodrigo H Muñoz-Cordovez, E. Wieters, A. Pérez‐Matus
The spawning sites, embryonic development, and initial larval stages were described for the Chilean kelpfish, Myxodes viridis. Six different egg clutches were found attached by an elastic filament to the fronds of the subtidal kelp, Lessonia trabeculata, at shallow depths (0-7 m). All egg clutches were cared for by one large (>15 cm TL) male, and egg color varied depending on the developmental stage. Embryonic development until hatching was categorized into 7 stages, which were completed within about 18 days in the laboratory. Recently hatched larvae presented fully pigmented eyes, a well-developed mouth with major shape changes in the head during the first week suggesting their ability to feed on plankton early in their larval development.
{"title":"Observations on the early development of the kelpfish Myxodes viridis (Clinidae) with the first description of their spawning habitat in subtidal kelp forests (Lessonia trabeculata)","authors":"C. S. Ruz, Vladimir Garmendia, Rodrigo H Muñoz-Cordovez, E. Wieters, A. Pérez‐Matus","doi":"10.22370/RBMO.2021.56.1.2799","DOIUrl":"https://doi.org/10.22370/RBMO.2021.56.1.2799","url":null,"abstract":"The spawning sites, embryonic development, and initial larval stages were described for the Chilean kelpfish, Myxodes viridis. Six different egg clutches were found attached by an elastic filament to the fronds of the subtidal kelp, Lessonia trabeculata, at shallow depths (0-7 m). All egg clutches were cared for by one large (>15 cm TL) male, and egg color varied depending on the developmental stage. Embryonic development until hatching was categorized into 7 stages, which were completed within about 18 days in the laboratory. Recently hatched larvae presented fully pigmented eyes, a well-developed mouth with major shape changes in the head during the first week suggesting their ability to feed on plankton early in their larval development.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44648126","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 : 2021-06-07DOI: 10.22370/RBMO.2021.56.1.2802
A. Wakida-Kusunoki, J. L. Cruz-Sánchez, N. A. López-Téllez
This work shows an update of the sightings and reports of tiger shrimp Penaeus monodon on the Mexican coast of the Gulf of Mexico recorded from 2012 to 2019 and reports the smallest specimen found in the western Atlantic. The results show an increase of almost 300% in sightings and reports since the first report. The zone with most sightings and reports was the coast of Campeche and Yucatán. The wide range of size and distribution of the captured specimens, including the smallest specimen found in the western Atlantic and the presence of females at an advanced stage of gonadal maturity, indicates that P. monodon has established itself in the area. The possible negative effects of such establishment make necessary the proposal of measures based on scientific evidence.
{"title":"A review of recent sightings and reports of the giant tiger shrimp Penaeus monodon (Decapoda: Penaeidae) on the Mexican coast of the Gulf of Mexico (2012-2019)","authors":"A. Wakida-Kusunoki, J. L. Cruz-Sánchez, N. A. López-Téllez","doi":"10.22370/RBMO.2021.56.1.2802","DOIUrl":"https://doi.org/10.22370/RBMO.2021.56.1.2802","url":null,"abstract":"This work shows an update of the sightings and reports of tiger shrimp Penaeus monodon on the Mexican coast of the Gulf of Mexico recorded from 2012 to 2019 and reports the smallest specimen found in the western Atlantic. The results show an increase of almost 300% in sightings and reports since the first report. The zone with most sightings and reports was the coast of Campeche and Yucatán. The wide range of size and distribution of the captured specimens, including the smallest specimen found in the western Atlantic and the presence of females at an advanced stage of gonadal maturity, indicates that P. monodon has established itself in the area. The possible negative effects of such establishment make necessary the proposal of measures based on scientific evidence.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48130459","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 : 2021-06-07DOI: 10.22370/RBMO.2021.56.1.2800
F. Zavala-Muñoz, M. Landaeta, Valentina Bernal-Durán, C. Bustos, B. Dyer
The abundance of early stages of the surf silverside Notocheirus hubbsi in nearshore waters of central Chile, collected in samplings set up to assess the lunar cycle during austral spring and summer is reported. A total of 19 specimens were collected with light traps, 16 larvae (7.89-16.20 mm SL) in austral spring and 3 juveniles (30.70-34.60 mm SL) in summer. Capture per unit effort (CPUE) varied from 0.33 to 2.00 ind. light trap -1 night -1 during the entire study period (September 2015-February 2016, and September 2016-February 2017). N. hubbsi catches recorded maximum abundance during the new moon and no catches during full moon.
{"title":"Abundance of early life stages of the surf silverside Notocheirus hubbsi (Teleostei, Atheriniformes) in the coastal nearshore of central Chile","authors":"F. Zavala-Muñoz, M. Landaeta, Valentina Bernal-Durán, C. Bustos, B. Dyer","doi":"10.22370/RBMO.2021.56.1.2800","DOIUrl":"https://doi.org/10.22370/RBMO.2021.56.1.2800","url":null,"abstract":"The abundance of early stages of the surf silverside Notocheirus hubbsi in nearshore waters of central Chile, collected in samplings set up to assess the lunar cycle during austral spring and summer is reported. A total of 19 specimens were collected with light traps, 16 larvae (7.89-16.20 mm SL) in austral spring and 3 juveniles (30.70-34.60 mm SL) in summer. Capture per unit effort (CPUE) varied from 0.33 to 2.00 ind. light trap -1 night -1 during the entire study period (September 2015-February 2016, and September 2016-February 2017). N. hubbsi catches recorded maximum abundance during the new moon and no catches during full moon.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45872136","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 : 2021-06-07DOI: 10.22370/RBMO.2021.56.1.2798
L. Salgado-Cruz, C. Quiñonez-Velázquez, F. García-Domínguez, Carlos Iván Pérez-Quiñonez, Valeria Aguilar-Camacho
The white mullet Mugil curema is one of the main species that exploits the artisanal fishery on the Mexican Pacific coast. Addressing the reproductive aspects of species by fishing area will reduce bias in evaluating the status of their populations. The objective of the present study was to describe the reproductive cycle and estimate some biological parameters of the white mullet in two fishing sites on the coast of Baja California Sur. Monthly, samples from the catch were obtained in Bahía de La Paz (BLP) and Bahía Magdalena (BM), during 2010-2013. Gonadal maturation process was histologically analyzed and the reproductive cycle was described. Gonadosomatic index (GSI), condition factor (CF), hepatosomatic index (HSI), the weight-length relationship and average length of sexual maturity (L50%) were estimated. The size of the fish varied between 244 and 455 mm in total length (LT). Females were more abundant (> 70%), large and heavy than males at both fishing sites. A reproductive pattern was identified with two annual peaks in BLP (March-June and October-November) and one in BM (April-August). A similar pattern of GSI, CF and HSI by sex was identified at both sites. The white mullet showed negative growth allometry, features of total spawning, synchronous gonadal development by groups and an L50% higher in females than males. It is recommended to readjust the closure period by fishing site and based on the L50% be cautious in the mesh size of the fishing nets.
{"title":"Aspectos reproductivos de Mugil curema (Perciformes: Mugilidae) en dos zonas de Baja California Sur, México","authors":"L. Salgado-Cruz, C. Quiñonez-Velázquez, F. García-Domínguez, Carlos Iván Pérez-Quiñonez, Valeria Aguilar-Camacho","doi":"10.22370/RBMO.2021.56.1.2798","DOIUrl":"https://doi.org/10.22370/RBMO.2021.56.1.2798","url":null,"abstract":"The white mullet Mugil curema is one of the main species that exploits the artisanal fishery on the Mexican Pacific coast. Addressing the reproductive aspects of species by fishing area will reduce bias in evaluating the status of their populations. The objective of the present study was to describe the reproductive cycle and estimate some biological parameters of the white mullet in two fishing sites on the coast of Baja California Sur. Monthly, samples from the catch were obtained in Bahía de La Paz (BLP) and Bahía Magdalena (BM), during 2010-2013. Gonadal maturation process was histologically analyzed and the reproductive cycle was described. Gonadosomatic index (GSI), condition factor (CF), hepatosomatic index (HSI), the weight-length relationship and average length of sexual maturity (L50%) were estimated. The size of the fish varied between 244 and 455 mm in total length (LT). Females were more abundant (> 70%), large and heavy than males at both fishing sites. A reproductive pattern was identified with two annual peaks in BLP (March-June and October-November) and one in BM (April-August). A similar pattern of GSI, CF and HSI by sex was identified at both sites. The white mullet showed negative growth allometry, features of total spawning, synchronous gonadal development by groups and an L50% higher in females than males. It is recommended to readjust the closure period by fishing site and based on the L50% be cautious in the mesh size of the fishing nets.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47002653","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 : 2021-01-09DOI: 10.22370/RBMO.2020.55.3.2623
B. Campos, Fernando Balbontín
Una gran tristeza nos embargo al saber del fallecimiento de nuestro amigo y colega Luis Ramorino Meschi, para sus cercanos Luigi o Lucho, ocurrido el 26 de mayo de 2020, despues de haber mantenido bajo control por mucho tiempo una enfermedad que finalmente gano la batalla. Se desempeno por mas de 40 anos en la academia, iniciando su carrera academica en el Instituto Pedagogico de la Universidad de Chile, para posteriormente incorporarse como Ayudante de Laboratorio a la Estacion de Biologia Marina de Montemar, actual Facultad de Ciencias del Mar y de Recursos Naturales de la Universidad de Valparaiso. Se desempeno en diversos cargos, hasta alcanzar el de Director de esta institucion.
2020年5月26日，我们的朋友兼同事路易斯·拉莫里诺·梅斯基(Luis Ramorino Meschi)去世，他的亲密朋友路易吉·卢乔(Luigi o Lucho)去世，他长期控制着一种最终赢得战斗的疾病，我们感到非常悲伤。在学院的desempeno长达40年,学院开始他的职业生涯academica Pedagogico智利大学的实验室,为后来纳入作为助理Montemar海洋Biologia车站,目前海洋科学学院和Valparaiso大学自然资源。他担任过各种职务，直到成为该机构的主任。
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