Pub Date : 2017-08-08DOI: 10.25268/BIMC.INVEMAR.2008.37.2.195
Damián Leonardo Arévalo Martínez, A. Herrera
In order to determine the influence of the ocean and atmospheric coupling dynamics on upwelling events, caused by Ekman's transport and by continental winds, as well as the possible fertilization effect produced by the increasing of the concentration of inorganic nutrients in coastal waters of Gaira's inlet, Magdalena department, during the minor dry season of 2006, atmospheric, oceanographic, and biological variables were measured by the implementation of the Eurelian method. A total of four samplings were carried out, among which two presented atmospheric and oceanic conditions that evidence the occurrence of upwelling events 48 hours before in response to strong winds coming from northeast (trade winds) and from the continent, whereas the other two samplings presented similar characteristics to those typical of rainy seasons. During this study, wind velocity and direction presented expected values during upwelling events caused by Ekman's transport and by continental winds (> 4.5 m/s, 26 ° y 120 °, respectively), generating enough stress levels in the sea surface layer that could move it offshore (1.2 dynes/cm2). During the days following the upwelling events, anomalies in water physical and chemical characteristics were observed, presenting low temperatures (26.1 ± 1.1 °C ), high salinity (36.0 ± 0.5) and, as a consequence, high densities (at 26.31 ± 0.50), as well as low dissolved oxygen levels (4.04 ± 0.29 mL/L) and predominant subsaturation (84.3 ± 6.1 %). Inorganic nutrient concentration showed a relatively homogeneous behavior, keeping low nitrite (0.35 ± 0.02 μM) and phosphate (0.30 ± 0.01 μM) levels during all samplings, whereas the mean ammonium concentration was relatively high (1.08 ± 0.11 μM). In contrast, nitrate levels were high during all samplings, with higher values corresponding to upwelling events (9.48 ± 0.49 μM), although variation was not statistically significative. Phytoplanktonic biomass showed a moderate response to fertilization with chlorophyll a concentrations close to 0.54 ± 0.50 mg/m3, which are lower to the obtained in samplings executed after continental luvial inluence. Nevertheless, such behavior is more evident examining chlorophyll a-phaeopigment a quotient, in which values are predominantly higher than 1, indicating the presence of young and photosynthetically active communities in upwelled waters after 48 h. In general, atmospheric, oceanographic, and phytoplanktonic biomass information suggests a moderate increase in the fertilization of Gaira's inlet coastal waters, caused by the deep waters upwelling, which belong to the Submerged Subtropical Water (SSW), allowing to classify this local upwelling event as mesotrophic instead of oligotrophic, as traditionally accepted.
{"title":"Características oceanográficas de la surgencia frente a la Ensenada de Gaira, Departamento de Magdalena, época seca menor de 2006","authors":"Damián Leonardo Arévalo Martínez, A. Herrera","doi":"10.25268/BIMC.INVEMAR.2008.37.2.195","DOIUrl":"https://doi.org/10.25268/BIMC.INVEMAR.2008.37.2.195","url":null,"abstract":"In order to determine the influence of the ocean and atmospheric coupling dynamics on upwelling events, caused by Ekman's transport and by continental winds, as well as the possible fertilization effect produced by the increasing of the concentration of inorganic nutrients in coastal waters of Gaira's inlet, Magdalena department, during the minor dry season of 2006, atmospheric, oceanographic, and biological variables were measured by the implementation of the Eurelian method. A total of four samplings were carried out, among which two presented atmospheric and oceanic conditions that evidence the occurrence of upwelling events 48 hours before in response to strong winds coming from northeast (trade winds) and from the continent, whereas the other two samplings presented similar characteristics to those typical of rainy seasons. During this study, wind velocity and direction presented expected values during upwelling events caused by Ekman's transport and by continental winds (> 4.5 m/s, 26 ° y 120 °, respectively), generating enough stress levels in the sea surface layer that could move it offshore (1.2 dynes/cm2). During the days following the upwelling events, anomalies in water physical and chemical characteristics were observed, presenting low temperatures (26.1 ± 1.1 °C ), high salinity (36.0 ± 0.5) and, as a consequence, high densities (at 26.31 ± 0.50), as well as low dissolved oxygen levels (4.04 ± 0.29 mL/L) and predominant subsaturation (84.3 ± 6.1 %). Inorganic nutrient concentration showed a relatively homogeneous behavior, keeping low nitrite (0.35 ± 0.02 μM) and phosphate (0.30 ± 0.01 μM) levels during all samplings, whereas the mean ammonium concentration was relatively high (1.08 ± 0.11 μM). In contrast, nitrate levels were high during all samplings, with higher values corresponding to upwelling events (9.48 ± 0.49 μM), although variation was not statistically significative. Phytoplanktonic biomass showed a moderate response to fertilization with chlorophyll a concentrations close to 0.54 ± 0.50 mg/m3, which are lower to the obtained in samplings executed after continental luvial inluence. Nevertheless, such behavior is more evident examining chlorophyll a-phaeopigment a quotient, in which values are predominantly higher than 1, indicating the presence of young and photosynthetically active communities in upwelled waters after 48 h. In general, atmospheric, oceanographic, and phytoplanktonic biomass information suggests a moderate increase in the fertilization of Gaira's inlet coastal waters, caused by the deep waters upwelling, which belong to the Submerged Subtropical Water (SSW), allowing to classify this local upwelling event as mesotrophic instead of oligotrophic, as traditionally accepted.","PeriodicalId":35743,"journal":{"name":"Boletin de Investigaciones Marinas y Costeras","volume":"37 1","pages":"131-162"},"PeriodicalIF":0.0,"publicationDate":"2017-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48273167","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}
Events of wind intensification and relaxation bring changes in their components that can be favorable or not to the coastal upwelling because there is a change in the alignment of these with respect to the coast line. In order to assess the oceanographic dynamics in the bay of Santa Marta during 2014 and 2015 in response to changes in the zonal and meridional wind component, wind data were analyzed in an adjacent marine point at Santa Marta’s bay and measurements of temperature, salinity and dissolved oxygen were conducted in the water column during the months of March, May, July, and October 2014 and 2015 at a fixed station in the bay up to 18 m deep. Interannual oceanographic differences were found in March and June, which were explained by intra-seasonal variations in the wind field during 2015; in March alternating events of wind intensification and relaxation occurred with changes in both magnitude and direction, which explain the increases in temperature and water advection from La Guajira with lower oxygen values. In June 2015, an event of wind intensification, associated with changes in magnitude but no direction, was recorded, which explained the decrease in temperature, which was lower than the one in 2014. That month was characterized by strong winds and waves, but the directions were not favorable to the coastal upwelling, which explained that no low values of dissolved oxygen as expected in this type of events were found.
{"title":"EVENTOS DE INTENSIFICACIÓN Y RELAJACIÓN DEL VIENTO EN LA BAHÍA DE SANTA MARTA (CARIBE COLOMBIANO): IMPLICACIONES OCEANOGRÁFICAS","authors":"Martha Lucero Bastidas Salamanca, Silvio Andrés Ordóñez Zúñiga, Constanza Ricaurte Villota","doi":"10.25268/BIMC.INVEMAR.2016.45.2.682","DOIUrl":"https://doi.org/10.25268/BIMC.INVEMAR.2016.45.2.682","url":null,"abstract":"Events of wind intensification and relaxation bring changes in their components that can be favorable or not to the coastal upwelling because there is a change in the alignment of these with respect to the coast line. In order to assess the oceanographic dynamics in the bay of Santa Marta during 2014 and 2015 in response to changes in the zonal and meridional wind component, wind data were analyzed in an adjacent marine point at Santa Marta’s bay and measurements of temperature, salinity and dissolved oxygen were conducted in the water column during the months of March, May, July, and October 2014 and 2015 at a fixed station in the bay up to 18 m deep. Interannual oceanographic differences were found in March and June, which were explained by intra-seasonal variations in the wind field during 2015; in March alternating events of wind intensification and relaxation occurred with changes in both magnitude and direction, which explain the increases in temperature and water advection from La Guajira with lower oxygen values. In June 2015, an event of wind intensification, associated with changes in magnitude but no direction, was recorded, which explained the decrease in temperature, which was lower than the one in 2014. That month was characterized by strong winds and waves, but the directions were not favorable to the coastal upwelling, which explained that no low values of dissolved oxygen as expected in this type of events were found.","PeriodicalId":35743,"journal":{"name":"Boletin de Investigaciones Marinas y Costeras","volume":"45 1","pages":"181-196"},"PeriodicalIF":0.0,"publicationDate":"2016-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69643736","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}
Pub Date : 2016-06-15DOI: 10.25268/BIMC.INVEMAR.1996.25.0.372
J. M. Diaz, J. Sánchez, Guillermo Díaz-Pulido
Based on field surveys and interpretation of aerial photography and echosounder profiles, a general description of the geomorphological features and a characterization of the coralline structures of two reefal areas off the southern-central Colombian Caribbean coast, Isla Fuerte and Bajo Bushnell, are presented. Isla Fuerte is a partially emerged Holocenic reef-complex. The insular shelf occupies an area of about 13 km2 and, besides a highstanding island, it has diverse geomorphological features such as a seaward fringing barrier reef, a peripherical reef-belt at the outer shelf margin, and shallow patch reefs, as well as large seagrass meadows on its leeward side. On the other hand, Bushnell is a dome-shaped coral bank, about 1300 m in diameter, with a minimum depth of 12 m, located near the shelf-edge. Despite the bottom communities being relatively homogeneous and their boundaries are ill-defined, at least four ecological bottom units could be distinguished at Bushnell on the basis of the presence/dominance of conspicuous sessile organisms. The zone of greater living coral coverage corresponds to the shallowest, seaward part of the shoal. A list of coral species observed in both areas is included. Like other coral banks and islands off the central part of the Colombian Caribbean coast, the origin of these high-reliefs on the continental shelf seems to be related to diapiric and tectonic activity, and subsequent colonization by hermatipic organisms since Holocene times.
{"title":"GEOMORFOLOGÍA Y FORMACIONES ARRECIFALES RECIENTES DE ISLA FUERTE Y BAJO BUSHNELL, PLATAFORMA CONTINENTAL DEL CARIBE COLOMBIANO","authors":"J. M. Diaz, J. Sánchez, Guillermo Díaz-Pulido","doi":"10.25268/BIMC.INVEMAR.1996.25.0.372","DOIUrl":"https://doi.org/10.25268/BIMC.INVEMAR.1996.25.0.372","url":null,"abstract":"Based on field surveys and interpretation of aerial photography and echosounder profiles, a general description of the geomorphological features and a characterization of the coralline structures of two reefal areas off the southern-central Colombian Caribbean coast, Isla Fuerte and Bajo Bushnell, are presented. Isla Fuerte is a partially emerged Holocenic reef-complex. The insular shelf occupies an area of about 13 km2 and, besides a highstanding island, it has diverse geomorphological features such as a seaward fringing barrier reef, a peripherical reef-belt at the outer shelf margin, and shallow patch reefs, as well as large seagrass meadows on its leeward side. On the other hand, Bushnell is a dome-shaped coral bank, about 1300 m in diameter, with a minimum depth of 12 m, located near the shelf-edge. Despite the bottom communities being relatively homogeneous and their boundaries are ill-defined, at least four ecological bottom units could be distinguished at Bushnell on the basis of the presence/dominance of conspicuous sessile organisms. The zone of greater living coral coverage corresponds to the shallowest, seaward part of the shoal. A list of coral species observed in both areas is included. Like other coral banks and islands off the central part of the Colombian Caribbean coast, the origin of these high-reliefs on the continental shelf seems to be related to diapiric and tectonic activity, and subsequent colonization by hermatipic organisms since Holocene times.","PeriodicalId":35743,"journal":{"name":"Boletin de Investigaciones Marinas y Costeras","volume":"25 1","pages":"87-105"},"PeriodicalIF":0.0,"publicationDate":"2016-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69639958","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}
Pub Date : 2016-06-01DOI: 10.25268/BIMC.INVEMAR.2007.36.0.208
Paola Flórez-Romero, Erika Montoya-Cadavid, Javier Reyes-Forero, Nadiezhda Santodomingo
El orden Cheilostomatida es el grupo de briozoos marinos vivientes mas diverso de la actualidad, siendo comun encontrar sus especies en todos los ecosistemas marinos del mundo. Sin embargo, la informacion del grupo en Colombia es escasa y se restringe a pocas localidades. Con la iniciativa de explorar la biodiversidad de los fondos blandos y complementar los inventarios de fauna marina en Colombia, se llevo a cabo la campana INVEMAR-Macrofauna II, realizada en marzo de 2001, en la cual se recolectaron muestras a lo largo del Caribe colombiano sobre la plataforma continental y el talud superior entre 20 y 500 m de profundidad. Durante la expedicion se encontraron 62 especies de cheilostomados pertenecientes a 39 familias, de las cuales 36 fueron primeros registros para el Caribe colombiano, cuatro para el Gran Caribe y una para el Atlantico Occidental Tropical, ademas se amplio la distribucion batimetrica y geografica de 13 especies. En esta revision se consignan las fichas taxonomicas e imagenes de las cinco especies que constituyen primeros registros para el Gran Caribe y el Atlantico Occidental Tropical. Asi mismo, se realizan anotaciones generales sobre la distribucion, sustratos y tipos de crecimiento de los cheilostomados
唇口目是当今最多样化的海洋苔藓动物，在世界各地的海洋生态系统中都很常见。然而，该组织在哥伦比亚的信息很少，而且仅限于几个地区。倡议湿润勘探深海海底生物多样性和海洋动物在哥伦比亚清单加以补充,执行了贝尔INVEMAR-Macrofauna II, 2001年3月,在采集样本沿着哥伦比亚加勒比关于大陆架和坡深度大于20至500米。在考察过程中，共发现39科62种唇口动物，其中36种首次出现在哥伦比亚加勒比地区，4种出现在大加勒比地区，1种出现在热带西大西洋地区，并扩大了13种的水深和地理分布。本综述的目的是对大加勒比和西大西洋热带地区五个物种的分类表和图像进行综述。此外，还对唇口动物的分布、基质和生长类型进行了一般注释。
{"title":"BRIOZOOS CHEILOSTOMADOS DEL CARIBE COLOMBIANO","authors":"Paola Flórez-Romero, Erika Montoya-Cadavid, Javier Reyes-Forero, Nadiezhda Santodomingo","doi":"10.25268/BIMC.INVEMAR.2007.36.0.208","DOIUrl":"https://doi.org/10.25268/BIMC.INVEMAR.2007.36.0.208","url":null,"abstract":"El orden Cheilostomatida es el grupo de briozoos marinos vivientes mas diverso de la actualidad, siendo comun encontrar sus especies en todos los ecosistemas marinos del mundo. Sin embargo, la informacion del grupo en Colombia es escasa y se restringe a pocas localidades. Con la iniciativa de explorar la biodiversidad de los fondos blandos y complementar los inventarios de fauna marina en Colombia, se llevo a cabo la campana INVEMAR-Macrofauna II, realizada en marzo de 2001, en la cual se recolectaron muestras a lo largo del Caribe colombiano sobre la plataforma continental y el talud superior entre 20 y 500 m de profundidad. Durante la expedicion se encontraron 62 especies de cheilostomados pertenecientes a 39 familias, de las cuales 36 fueron primeros registros para el Caribe colombiano, cuatro para el Gran Caribe y una para el Atlantico Occidental Tropical, ademas se amplio la distribucion batimetrica y geografica de 13 especies. En esta revision se consignan las fichas taxonomicas e imagenes de las cinco especies que constituyen primeros registros para el Gran Caribe y el Atlantico Occidental Tropical. Asi mismo, se realizan anotaciones generales sobre la distribucion, sustratos y tipos de crecimiento de los cheilostomados","PeriodicalId":35743,"journal":{"name":"Boletin de Investigaciones Marinas y Costeras","volume":"36 1","pages":"229-250"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69642415","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}
Pub Date : 2016-01-01DOI: 10.25268/BIMC.INVEMAR.2004.33.0.280
Giomar Helena Borrero Pérez, Milena Benavides Serrato
{"title":"PRIMER REGISTRO DE CLYPEASTER RAVENELII Y CENTROSTEPHANUS LONGISPINUS RUBICINGULUS (ECHINODERMATA: ECHINOIDEA) PARA EL CARIBE COLOMBIANO","authors":"Giomar Helena Borrero Pérez, Milena Benavides Serrato","doi":"10.25268/BIMC.INVEMAR.2004.33.0.280","DOIUrl":"https://doi.org/10.25268/BIMC.INVEMAR.2004.33.0.280","url":null,"abstract":"","PeriodicalId":35743,"journal":{"name":"Boletin de Investigaciones Marinas y Costeras","volume":"33 1","pages":"279-284"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69641747","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}
Pub Date : 2016-01-01DOI: 10.25268/BIMC.INVEMAR.2003.32.0.266
R. Navas, T. Bermúdez, C. Cruz, C. Campos
Galatheids (Decapoda, Anomura, Galatheidae) from Colombian Caribbean, including twelve new records. During the INVEMAR - MACROFAUNA I expedition (1998-1999), specimens of 16 species of crustacean decapods of the Galatheidae family, belonging to three genera, were collected. In this paper the distictive characteristics of 12 of the species, registered for the first time for the Colombian Caribbean, are presented. This paper also includes taxonomic keys, species images, bathymetric and geographic data and comments of their morphological variations. Additionally, the holdings of the family, collected in Colombian localities and deposited in biological collections, according to the reviewed bibliographical references, are listed. The species are: Agononida longipes (A. Milne-Edwards, 1880); Munida constricta A. Milne-Edwards, 1880; M. evermanni Benedict, 1901; M. flinti Benedict, 1902; M. forceps A. Milne-Edwards, 1880; Munidopsis alaminos Pequegnat and Pequegnat, 1970; M. brevimanus (A. Milne-Edwards, 1880); M. erinaceus (A. Milne-Edwards, 1880); M. longimanus (A. Milne-Edwards, 1880); M. platirostris (A. Milne-Edwards and Bouvier, 1894); M. polita (Smith, 1883); and M. ramahtaylorae Pequegnat and Pequegnat, 1971.
{"title":"GALATÉIDEOS (DECAPODA, ANOMURA, GALATHEIDAE) DEL CARIBE COLOMBIANO, INCLUYENDO DOCE PRIMEROS REGISTROS","authors":"R. Navas, T. Bermúdez, C. Cruz, C. Campos","doi":"10.25268/BIMC.INVEMAR.2003.32.0.266","DOIUrl":"https://doi.org/10.25268/BIMC.INVEMAR.2003.32.0.266","url":null,"abstract":"Galatheids (Decapoda, Anomura, Galatheidae) from Colombian Caribbean, including twelve new records. During the INVEMAR - MACROFAUNA I expedition (1998-1999), specimens of 16 species of crustacean decapods of the Galatheidae family, belonging to three genera, were collected. In this paper the distictive characteristics of 12 of the species, registered for the first time for the Colombian Caribbean, are presented. This paper also includes taxonomic keys, species images, bathymetric and geographic data and comments of their morphological variations. Additionally, the holdings of the family, collected in Colombian localities and deposited in biological collections, according to the reviewed bibliographical references, are listed. The species are: Agononida longipes (A. Milne-Edwards, 1880); Munida constricta A. Milne-Edwards, 1880; M. evermanni Benedict, 1901; M. flinti Benedict, 1902; M. forceps A. Milne-Edwards, 1880; Munidopsis alaminos Pequegnat and Pequegnat, 1970; M. brevimanus (A. Milne-Edwards, 1880); M. erinaceus (A. Milne-Edwards, 1880); M. longimanus (A. Milne-Edwards, 1880); M. platirostris (A. Milne-Edwards and Bouvier, 1894); M. polita (Smith, 1883); and M. ramahtaylorae Pequegnat and Pequegnat, 1971.","PeriodicalId":35743,"journal":{"name":"Boletin de Investigaciones Marinas y Costeras","volume":"32 1","pages":"183-218"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69641770","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}
Pub Date : 2016-01-01DOI: 10.25268/BIMC.INVEMAR.2009.38.1.164
J. Selvaraj, Maya Rajasekharan, A. I. G. Alvis
Geographic Information System (GIS) and Remote Sensing (RS) techniques have been used increasingly for marine fisheries development and management over the last years. However, its applications continue to be scarce in Colombia. This paper briefly reviews use of spatial tools in marine fisheries management, both retrospectively and predictively. Case studies of RS and GIS in fisheries research in Colombia and challenges for future use for management measures are discussed. In order to harness the potential of GIS and RS tools in marine fisheries research and management, priority should be given for training fisheries scientists in RS and GIS, increasing collaboration among institutions, departments, standardize data collection, and development of a common platform for data sharing.
{"title":"APLICACIONES DE LOS SISTEMAS DE INFORMACIÓN GEOGRÁFICA Y SENSORES REMOTOS AL MANEJO DE PESQUERÍAS MARINAS Y DESAFÍOS PARA SU DESARROLLO EN COLOMBIA","authors":"J. Selvaraj, Maya Rajasekharan, A. I. G. Alvis","doi":"10.25268/BIMC.INVEMAR.2009.38.1.164","DOIUrl":"https://doi.org/10.25268/BIMC.INVEMAR.2009.38.1.164","url":null,"abstract":"Geographic Information System (GIS) and Remote Sensing (RS) techniques have been used increasingly for marine fisheries development and management over the last years. However, its applications continue to be scarce in Colombia. This paper briefly reviews use of spatial tools in marine fisheries management, both retrospectively and predictively. Case studies of RS and GIS in fisheries research in Colombia and challenges for future use for management measures are discussed. In order to harness the potential of GIS and RS tools in marine fisheries research and management, priority should be given for training fisheries scientists in RS and GIS, increasing collaboration among institutions, departments, standardize data collection, and development of a common platform for data sharing.","PeriodicalId":35743,"journal":{"name":"Boletin de Investigaciones Marinas y Costeras","volume":"38 1","pages":"105-120"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69643030","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}
Pub Date : 2016-01-01DOI: 10.25268/BIMC.INVEMAR.2007.36.0.200
Rocío Tíjaro Rojas, Hugo Salgado Cabrera
Chilean Pacific jack mackerel (Nichols, 1920) fishery yields about 90% of the Eastern South Pacific catch. The Southern Central region is the one that concentrates the major abundance of this resource. The objective of this study is to test which of the regulation fishery systems is the most efficient for this fishery from a bioeconomic approach. Based on catch and effort data, the behaviour of the T. murphy stock and the fishing fleet was simulated over time under three regulatory scenarios: open access, total allowable catch and individual transferable quotas. The behaviour of the fish stock, and the dynamics of fishing vessels coming in and going out over time from the fishery, were represented by equations of the model. The results indicate that when the fishery operates in open access, the biomass and economics benefit diminished, whereas the number of fishing vessels increased (mostly small and middle-sized ones). Upon imposing the total allowable catch, biomass increased and maintained over time, while the size fleet decreased (middle-sized and large vessels). Within the individual transferable quotas view, the fish stock behaves in a similar way to the total allowable catch measure. However, significant differences in terms of fleet size (reduction of only 10% of the initial size), as well as structure (remaining only large vessels in operation) and economic profits obtained (maximum in this regulation), arise from this framework modelling. In conclusion, from the fishery bioecomic point of view the individual transferable quotas was the best management scenario for the Southern Pacific Jack Mackerel.
{"title":"EFECTOS DE LARGO PLAZO DE INSTRUMENTOS DE REGULACIÓN PESQUERA: CASO DE LA PESQUERÍA DEL JUREL TRACHURUS MURPHYI (NICHOLS, 1920) EN LA ZONA CENTRO SUR DE CHILE","authors":"Rocío Tíjaro Rojas, Hugo Salgado Cabrera","doi":"10.25268/BIMC.INVEMAR.2007.36.0.200","DOIUrl":"https://doi.org/10.25268/BIMC.INVEMAR.2007.36.0.200","url":null,"abstract":"Chilean Pacific jack mackerel (Nichols, 1920) fishery yields about 90% of the Eastern South Pacific catch. The Southern Central region is the one that concentrates the major abundance of this resource. The objective of this study is to test which of the regulation fishery systems is the most efficient for this fishery from a bioeconomic approach. Based on catch and effort data, the behaviour of the T. murphy stock and the fishing fleet was simulated over time under three regulatory scenarios: open access, total allowable catch and individual transferable quotas. The behaviour of the fish stock, and the dynamics of fishing vessels coming in and going out over time from the fishery, were represented by equations of the model. The results indicate that when the fishery operates in open access, the biomass and economics benefit diminished, whereas the number of fishing vessels increased (mostly small and middle-sized ones). Upon imposing the total allowable catch, biomass increased and maintained over time, while the size fleet decreased (middle-sized and large vessels). Within the individual transferable quotas view, the fish stock behaves in a similar way to the total allowable catch measure. However, significant differences in terms of fleet size (reduction of only 10% of the initial size), as well as structure (remaining only large vessels in operation) and economic profits obtained (maximum in this regulation), arise from this framework modelling. In conclusion, from the fishery bioecomic point of view the individual transferable quotas was the best management scenario for the Southern Pacific Jack Mackerel.","PeriodicalId":35743,"journal":{"name":"Boletin de Investigaciones Marinas y Costeras","volume":"36 1","pages":"49-62"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69642178","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}
Pub Date : 2016-01-01DOI: 10.25268/BIMC.INVEMAR.2007.36.0.205
J. M. Cristancho, Sven Zea, M. Acevedo, F. N. Umbreit
La determinacion de actividad antimitotica de extractos de organismos marinos genera expectativas para la obtencion de sustancias con potencial anticancerigeno a partir de fuentes alternativas. Se evaluo la actividad antimitotica in vitro de extractos organicos crudos de 15 esponjas de la costa Caribe colombiana, en embriones del erizo de mar Lytechinus variegatus. El 80% de las especies (Spirastrella coccinea, Myrmekioderma rea, Iotrochota imminuta, Halichondria sp., Petromica ciocalyptoides, Cinachyrella kuekenthali, Biemna cribaria, Oceanapia peltata, Xestospongia proxima, Oceanapia bartschi, Polymastia tenax y Dragmacidon reticulata) mostro un nivel de actividad fuerte inhibiendo la divisiones mitoticas desde el primer estadio celular durante la division de los huevos fertilizados de este erizo. Los extractos de Halichondria sp., P. ciocalyptoides y X. proxima desintegraron los nucleos celulares instantaneamente. El extracto de Cribrochalina infundibulum resulto medianamente activo; mientras que los extractos de las esponjas Desmapsamma anchorata y Myrmekioderma gyroderma no mostraron actividad
{"title":"CAPACIDAD ANTIMITOTICA DE EXTRACTOS DE ESPONJAS MARINAS DEL CARIBE COLOMBIANO","authors":"J. M. Cristancho, Sven Zea, M. Acevedo, F. N. Umbreit","doi":"10.25268/BIMC.INVEMAR.2007.36.0.205","DOIUrl":"https://doi.org/10.25268/BIMC.INVEMAR.2007.36.0.205","url":null,"abstract":"La determinacion de actividad antimitotica de extractos de organismos marinos genera expectativas para la obtencion de sustancias con potencial anticancerigeno a partir de fuentes alternativas. Se evaluo la actividad antimitotica in vitro de extractos organicos crudos de 15 esponjas de la costa Caribe colombiana, en embriones del erizo de mar Lytechinus variegatus. El 80% de las especies (Spirastrella coccinea, Myrmekioderma rea, Iotrochota imminuta, Halichondria sp., Petromica ciocalyptoides, Cinachyrella kuekenthali, Biemna cribaria, Oceanapia peltata, Xestospongia proxima, Oceanapia bartschi, Polymastia tenax y Dragmacidon reticulata) mostro un nivel de actividad fuerte inhibiendo la divisiones mitoticas desde el primer estadio celular durante la division de los huevos fertilizados de este erizo. Los extractos de Halichondria sp., P. ciocalyptoides y X. proxima desintegraron los nucleos celulares instantaneamente. El extracto de Cribrochalina infundibulum resulto medianamente activo; mientras que los extractos de las esponjas Desmapsamma anchorata y Myrmekioderma gyroderma no mostraron actividad","PeriodicalId":35743,"journal":{"name":"Boletin de Investigaciones Marinas y Costeras","volume":"36 1","pages":"167-179"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69642214","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}
Pub Date : 2016-01-01DOI: 10.25268/BIMC.INVEMAR.2008.37.1.187
P. Ariza, N. Campos, Adriana Bermúdez
New records and range extensions are documented for 19 species of brachyuran crabs collected during INVEMAR-Macrofauna II expeditions between 20 and 150 m depth along the Caribbean coast of Colombia. A summary of morphological characteristics of the species and genera, their distribution, and remarks based on a study of the specimens collected and available published information is included. The new records involve species of the families Calappidae, Epialtidae, Goneplacidae, Inachidae, Inachoididae, Leucosiidae, Mithracidae, Palicidae and Xanthidae. The presence of Persephona crinita, Podochela lamelligera, Aepinus septemspinosus and Collodes inermis represent geographic and in some cases bathymetric range extensions within the Caribbean Sea.
{"title":"NUEVOS REGISTROS Y AMPLIACIÓN DE ÁMBITOS BATIMÉTRICOS DE CANGREJOS (CRUSTACEA: DECAPODA: BRACHYURA) PARA EL MAR CARIBE COLOMBIANO","authors":"P. Ariza, N. Campos, Adriana Bermúdez","doi":"10.25268/BIMC.INVEMAR.2008.37.1.187","DOIUrl":"https://doi.org/10.25268/BIMC.INVEMAR.2008.37.1.187","url":null,"abstract":"New records and range extensions are documented for 19 species of brachyuran crabs collected during INVEMAR-Macrofauna II expeditions between 20 and 150 m depth along the Caribbean coast of Colombia. A summary of morphological characteristics of the species and genera, their distribution, and remarks based on a study of the specimens collected and available published information is included. The new records involve species of the families Calappidae, Epialtidae, Goneplacidae, Inachidae, Inachoididae, Leucosiidae, Mithracidae, Palicidae and Xanthidae. The presence of Persephona crinita, Podochela lamelligera, Aepinus septemspinosus and Collodes inermis represent geographic and in some cases bathymetric range extensions within the Caribbean Sea.","PeriodicalId":35743,"journal":{"name":"Boletin de Investigaciones Marinas y Costeras","volume":"37 1","pages":"155-188"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69642386","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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