Pesquería artesanal de la medusa Stomolophus meleagris en el estuario interno del Golfo de Guayaquil 2014

La pesca de la medusa Stomolophus meleagris, se desarrolla en el estuario interior del Golfo de Guayaquil donde se encuentran una diversidad de comunidades biológicas, los pescadores de Puerto Salinas, El Conchal, Isla Puná y El Morro en la provincia del Guayas y en El Oro: Puerto Bolívar, Bajo Alto, La Puntilla y Tendales se dedican a esta actividad .Como objetivo general de este trabajo es describir la pesquería artesanal de la medusa Stomolophus meleagris en el estuario interno del Golfo de Guayaquil durante el 2014, para lo cual se obtuvo la información pesquera a través de un sistema de entrevista dirigida a los pescadores,. Se caracterizó 357 redes tipo bolso con alas siendo Puerto Salinas la más representativa con 132 redes, mientras que la red tipo bolso sin alas se caracterizaron 141, siendo Puná el más representativo con 129 redes, se georreferencio las principales zonas de captura, y obtuvo 3727 individuos de medusa, los cuales se midieron: la longitud total, diámetro de la umbrela y peso de cada individuo, presentaron una amplia distribución en los intervalos tallas, con un predominio de individuos con tallas de 6 a 10 cm. La talla media de captura fue de 8.1 cm. En el análisis de regresión presento un alto coeficiente de correlación (r=0,85), el desembarque total fue de ca., 68922,5 (T), de la captura analizada el 95% correspondió al recurso medusa y el 5% a peces y crustáceos, en cuanto a la caracterización socioeconómica a través de los resultados se pudo determinar que esta actividad beneficia a las comunidades asentadas dentro del estuario del Golfo de Guayaquil, generando empleo a unos 239 pescadores. Esta investigación está enfocada en brindar herramientas básicas para el buen manejo del recurso, bajo los principios de pesca responsable.The jellyfish Stomolophus meleagris is developed in the interior estuary of the Gulf of Guayaquil where a diversity of biological communities are found, the fishermen of Puerto Salinas, El Conchal, Isla Puná and El Morro in the province of Guayas and in El Oro : Puerto Bolívar, Bajo Alto, La Puntilla and Tendales are dedicated to this activity. As a general objective of this work is to describe the artisanal fishery of the Stomolophus meleagris jellyfish in the internal estuary of the Gulf of Guayaquil during 2014, for which it was obtained Fishery information through an interview system directed at fishermen; It was characterized 357 bag-like networks with wings being the most representative of Puerto Salinas with 132 networks, while the bagless type network was characterized 141, being Puná the most representative with 129 networks, georeferencing the main catch zones, and obtained 3727 Individuals of medusa, which were measured: the total length, diameter of the umbrela and weight of each individual, presented a wide distribution in the intervals sizes, with a predominance of individuals with sizes of 6 to 10 cm. The mean catch size was 8.1 cm. In the regression analysis, we presented a high correlation coefficient (r = 0.85), the total landing was ca., 68922.5 (T), of the catch analyzed, 95% corresponded to the jellyfish resource and 5% to Fish and crustaceans, as far as the socioeconomic characterization through the results could be determined that this activity benefits the communities settled within the estuary of the Gulf of Guayaquil, generating employment to about 239 fishermen. This research is focused on providing basic tools for the proper management of the resource, under the principles of responsible fishing

Análisis de la captura de Merluccius gayi en Ecuador durante el 2019

El objetivo del presente trabajo es analizar las capturas de la merluza (Merluccius gayi) en la costa ecuatoriana durante el 2019 con base en los reportes y bitácoras de pesca. Entre los principales resultados se determinó que, la temporada de pesca industrial de merluza se desarrolla de enero a agosto, realizando 18071 viajes, con una captura total de 2,133,985.4 toneladas, donde el puerto que registró el mayor número de desembarques fue Santa Rosa. Adicionalmente, la operatividad máxima de la flota merlucera se observó entre febrero y abril, meses donde se registraron los valores más altos de captura por unidad de esfuerzo (CPUE), siendo febrero donde se obtuvo la máxima captura (46,73 %). La estructura de tallas de los individuos capturados osciló entre 19 a 75 cm de Lt, donde la mayor incidencia se dio en los rangos 33 – 38 cm Lt (50.86 %) y 27 – 32 cm Lt (29.17 %). Cabe destacar que, únicamente el 2.96 % de la captura total se encontró en tallas superiores a los 51 cm. Se evidenció, además, variaciones en la estructura de tallas en función de la profundidad, donde la talla promedio de 36.00 cm fue capturada, principalmente, a profundidades entre 50 - 100 y 150 – 200 metros; sin embargo, con relación a la profundidad de arrastre, las mayores capturas se realizaron en profundidades menores o iguales a 100 metros durante la franja horaria de 12:00 a 16:0

Jellyfish fisheries in the Americas: origin, state of the art, and perspectives on new fishing grounds

Jellyfish (primarily scyphomedusae) fisheries have a long history in Asia, where jellyfish have been caught and processed as food for centuries. More recently, jellyfish fisheries have expanded to the Western Hemisphere, often driven by demand from Asian buyers and collapses of more traditional local fish stocks. Jellyfish fisheries have been attempted in numerous countries in North, Central, and South America, with varying degrees of success. Here, we chronicle the arrival of jellyfish fisheries in the Americas and summarize relevant information on jellyfish fishing, processing, and management. Processing technology for edible jellyfish has not advanced, and presents major concerns for environmental and human health. The development of alternative processing technologies would help to eliminate these concerns and may open up new opportunities for markets and species. We also examine the biodiversity of jellyfish species that are targeted for fisheries in the Americas. Establishment of new jellyfish fisheries appears possible, but requires a specific combination of factors including high abundances of particular species, processing knowledge dictated by the target market, and either inexpensive labor or industrialized processing facilities. More often than not, these factors are not altogether evaluated prior to attempting a new jellyfish fishery. As such, jellyfish fisheries are currently expanding much more rapidly than research on the subject, thereby putting ecosystems and stakeholders’ livelihoods at risk.Fil: Brotz, Lucas. University of British Columbia; CanadáFil: Schiariti, Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; ArgentinaFil: López Martínez, Juana. Centro de Investigaciones Biológicas del Noroeste; MéxicoFil: Álvarez Tello, Javier. Centro de Investigaciones Biológicas del Noroeste; MéxicoFil: Peggy Hsieh, Y.-H.. Florida State University; Estados UnidosFil: Jones, Robert P.. Southeastern Fisheries Association; Estados UnidosFil: Quiñones, Javier. Instituto del Mar del Perú; PerúFil: Dong, Zhijun. Chinese Academy of Sciences; República de ChinaFil: Morandini, André C.. Universidade de Sao Paulo; BrasilFil: Preciado, Mercy. Instituto Nacional de Pesca; EcuadorFil: Laaz, Enrique. Instituto Nacional de Pesca; EcuadorFil: Mianzan, Hermes Walter. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentin

Jellyfish fisheries in the Americas: origin, state of the art, and perspectives on new fishing grounds

Jellyfish (primarily scyphomedusae) fisheries have a long history in Asia, where jellyfish have been caught and processed as food for centuries. More recently, jellyfish fisheries have expanded to the Western Hemisphere, often driven by demand from Asian buyers and collapses of more traditional local fish stocks. Jellyfish fisheries have been attempted in numerous countries in North, Central, and South America, with varying degrees of success. Here, we chronicle the arrival of jellyfish fisheries in the Americas and summarize relevant information on jellyfish fishing, processing, and management. Processing technology for edible jellyfish has not advanced, and presents major concerns for environmental and human health. The development of alternative processing technologies would help to eliminate these concerns and may open up new opportunities for markets and species. We also examine the biodiversity of jellyfish species that are targeted for fisheries in the Americas. Establishment of new jellyfish fisheries appears possible, but requires a specific combination of factors including high abundances of particular species, processing knowledge dictated by the target market, and either inexpensive labor or industrialized processing facilities. More often than not, these factors are not altogether evaluated prior to attempting a new jellyfish fishery. As such, jellyfish fisheries are currently expanding much more rapidly than research on the subject, thereby putting ecosystems and stakeholders' livelihoods at risk