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53 resultados encontrados para: AUTOR: Markaida Aburto, Unai
11.
Tesis - Maestría
Hábitos alimentarios de la raya pinta (Aetobatus narinari) y caracterización de sus posibles presas en el sur del Golfo de México / Francisco Serrano Flores
Serrano Flores, Francisco (autor) ; Pérez Jiménez, Juan Carlos (Tutor) ; Méndez Loeza, Iván (Asesor) ; Markaida Aburto, Unai (Asesor) ;
Lerma, Campeche, México : El Colegio de la Frontera Sur , 2017
Clasificación: TE/597.097264 / S4
Bibliotecas: Campeche
Cerrar
SIBE Campeche
ECO040006742 (Disponible)
Disponibles para prestamo: 1
PDF
Índice | Resumen en: Español |
Resumen en español

En las pesquerías del sur del Golfo de México, Aetobatus narinari (raya pinta) es el elasmobranquio con mayor valor comercial y la segunda especie de raya más capturada, principalmente de enero a abril. Se desconoce la función que desempeña esta especie en las cadenas tróficas de la región, lo cual hace que ignoremos el impacto que tendría su probable disminución y el de sus posibles presas en el ecosistema. En este estudio fueron analizados estómagos e intestinos de un total de 154 organismos de esta especie, (68 hembras y 86 machos), y se realizaron muestreos de las presas potenciales dentro y fuera de su principal zona de pesca. Las especies-presa más importantes en la dieta de A. narinari fueron los gasterópodos, con más del 90% IIR (Índice de Importancia Relativa), y en menor medida los crustáceos con 2.8% IIR. No hubo diferencias en la dieta entre sexos; y la diferencia mínima o nula entre la dieta de las rayas menores < 100 cm (ancho de disco, AD) con las de tamaño medio (100-120 cm AD), y entre las menores con las grandes (> 120 cm AD), fue la única estadísticamente significativa (R <0.25, P <0.05). Sin embargo, el caracol oliva (Americoliva reticularis) fue la especie-presa más importante para las rayas menores para ambos sexos; las de tamaño medio consumieron más caracol lancetilla (Strombus pugilis) (rayas hembras y machos), caracol blanco (Lobatus costatus) (rayas hembras) y con menor importancia A. reticularis (rayas macho). Para las rayas hembras de mayor tamaño, las especies-presa más importantes fueron S. pugilis y cangrejo ermitaño (Petrochitus diogenes), y para los machos fueron en su mayoría S. pugilis. Las presas potenciales (vivas) más importantes (frecuencia y peso) en la zona de muestreo del bentos fueron: S. pugilis y P. diogenes, por lo cual es posible que las rayas de tamaño mediano y grande de ambos sexos se estén alimento en la zona de muestreo, y las rayas más pequeñas solo ocasionalmente.

Índice

1. Resumen
2. Introducción
3. Antecedentes
4. Justificación
5. Hipótesis
6. Objetivos
6.1. Objetivo general
6.2. Objetivos particulares
7. Área de estudio
8. Metodología
8.1 Muestreo de campo
8.1.1 Recolección de estómagos
8.1.2 Colecta de la fauna megabentónica de la zona de estudio
8.2 Trabajo de laboratorio
8.2.1 Índice de llenado (ILL) y estado de digestión de las presas del estómago e intestino
8.2.2 Identificación de las presas del contenido estomacal y de la fauna bentónica en la zona de estudio
8.3 Trabajo de gabinete
8.3.1 Estructura de tallas y sexo
8.3.2 Calidad del inventario
8.3.3 Descripción de los hábitos alimentarios de A. narinari
8.3.4 Estrategia de alimentación del depredador y los tipos de presa
8.3.5 Análisis de la repartición de recursos de A. narinari
8.3.6 Caracterización de la fauna megabentónica de la zona de estudio
8.3.7 Conocimiento Ecológico Local (CEL) de la dieta de A. narinari
8.3.8 Comparación entre la dieta de A. narinari y las posibles presas presentes en el área de estudio
9. Resultados
9.1 Generalidades de los organismos de A. narinari
9.1.1 Estructura de tallas
9.1.2 Índice de llenado (ILL) y estado de digestión
9.1.3 Calidad de inventario
9.2 Dieta
9.2.1 Dieta general
9.2.2 Descripción de la dieta de hembras y machos, y por grupos de tallas
9.3 Estrategia de alimentación del depredador y los tipos de presa
9.4 Análisis de la repartición de recursos de A. narinari de diferente talla y sexo
9.5 Características de los puntos de muestreo y de la fauna megabentónica
9.5.1 Descripción de las características de los puntos de muestreo
9.5.2 Caracterización de la fauna megabentónica de los puntos de muestro
9.6 Conocimiento Ecológico Local (CEL) de la dieta de A. narinari
9.7 Comparación entre la dieta de A. narinari y las posibles presas presentes en el área de estudio
10. Discusión

11. Conclusión
12. Literatura citada
13. Anexos


12.
- Artículo con arbitraje
*Solicítelo con su bibliotecario/a
Seasonal and spatial trends of Mayan octopus, Octopus maya, population dynamics from Campeche, Mexico
Markaida Aburto, Unai ; Méndez Loeza, Iván (coaut.) ; Rosales Raya, Martha Laura (coaut.) ;
Contenido en: Journal of the Marine Biological Association of the United Kingdom Vol. 97, no. 8 (December 2017), p. 1663-1673 ISSN: 0025-3154
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

High plasticity in cephalopod populations shows dramatic changes in their biological traits. Commercial catches of Mayan octopus (Octopus maya) in six localities of the state of Campeche, Mexico, were sampled monthly for five consecutive fishing seasons (2005–2009) in order to describe variations in population structure and maturation. Octopus maya grows and matures during the fishing season, from August to December. Spent individuals predominate in January and February, revealing a year-long life cycle. However, the presence of a few spent females in all months sampled suggests that a small part of the population shows an extended spawning period. Overall sex ratios did not significantly shift from the expected 1:1 in most samples. Males are mostly mature while the majority of females are immature during the season. Use of illegal fishing gears (spear diving or pots) in central localities accounts for a larger share in mature females. Octopus size showed large interannual and geographic differences. Females mature at a larger size (1024 g body weight, BW; 124 mm mantle length, ML) than males (484 g BW; 91 mm ML). Size at maturity in both sexes varies more between seasons than between localities. Female ML at maturity is larger than the current minimum legal size and implications for current octopus fishing regulations are discussed.


13.
- Artículo con arbitraje
Cephalopods of Pacific Latin America
Markaida Aburto, Unai ; Gilly, William F. (coaut.) ;
Contenido en: Fisheries Research Vol. 173, Part2 (January 2016), p. 113–121 ISSN: 0165-7836
Resumen en: Inglés |
Resumen en inglés

Cephalopod fisheries have experienced outstanding growth in Latin America during the last quartercentury, increasing from 0.5% to 7% of total Latin American landings since 1990. Its waters account todayfor a third of world cephalopod catches, with about two-thirds of this total being landed by Latin American countries and the remainder by East Asian countries. The ommastrephid squids Dosidicus gigas and Illexargentinus have led catches worldwide, while Doryteuthis gahi is the most important loliginid. Mexico,Peru, Chile, Argentina and the Falkland Islands (Malvinas) account for 98% of landings in the region.Pacific waters account for 60% of cephalopod landings in Latin America. Mexico, Peru and Chile accountfor virtually all landings from the Pacific. This has been largely achieved through switching the targets ofnational fishing fleets to squid. There are a variety of directed fisheries for octopus, some of which raiseconcerns about sustainability. Most landings are exported to East Asia and Europe, but local cephalopodsupply has increased. Aquaculture research on octopus in Chile is experiencing a mayor advance with international impact. Cephalopod research in Latin America is progressing in response developments in the fishing industry, especially in Mexico, Peru, and Chile. Nevertheless, cephalopod consumption is still relatively low andfisheries in these countries all depend strongly on foreign markets. In the smaller countries of Central America, as well as Colombia and Ecuador, cephalopods remain negligible as a marine resource.


14.
Artículo
Genetic evidence of the presence of Octopus mimus in the artisanal fisheries of octopus in Santa Elena Peninsula, Ecuador
Pliego Cárdenas, Ricardo ; Flores, Luis (coaut.) ; Markaida Aburto, Unai (coaut.) ; Barriga Sosa, Irene de los Ángeles (coaut.) ; Mora, Elba (coaut.) ; Arias, Evelyn (coaut.) ;
Contenido en: American Malacological Bulletin Vol. 34, no. 1 (June 2016), p. 51-55 ISSN: 2162-2698
Resumen en: Inglés |
Resumen en inglés

The geographic distribution of Octopus mimus Gould, 1852 is unclear, as most records are restricted to coastal localities of Peru and Chile, and some references have mentioned its presence off Central America. It is unknown whether this octopus is found off Ecuador as two previous unpublished records have suggested. The aim of the present study is to identify genetically the main octopus captured in a marine protected area known as Reserva de Produccion Faunistica Marino-Costera Puntilla de Santa Elena (REMACOPSE) off the Santa Elena peninsula, Ecuador. Samples collected from the local fishery were used to test the presence of this species based on the sequences of three mitochondrial markers and using a Bayesian approach. The phylogenetic analysis confirms that O. mimus inhabits the REMACOPSE. The results also indicate that the octopus specimens captured in the fishery from this marine protected area, are more closely related to O. mimus specimens from Central America than those from South America. The genetic identification of two groups of O. mimus could be associated with the different marine environmental conditions of the two biogeographic provinces. The finding in this study represents an important step for posterior research on the biology and fishery of octopus in Ecuador.


15.
- Artículo con arbitraje
Prolonged decline of jumbo squid (Dosidicus gigas) landings in the Gulf of California is associated with chronically low wind stress and decreased chlorophyll a after El Niño 2009–2010
Robinson, Carlos J. ; Gómez Gutiérrez, Jaime (coaut.) ; Markaida Aburto, Unai (coaut.) ; Gilly, William F. (coaut.) ;
Contenido en: Fisheries Research Vol. 173, Part 2 (January 2016), p. 128–138 ISSN: 0165-7836
Resumen en: Inglés |
Resumen en inglés

Dosidicus gigas (jumbo or Humboldt squid) is an ecologically relevant predator in the Gulf of California, Mexico, where it supports an economically valuable fishery. The commercial jumbo squid fishery in the Gulf declined steeply after an El Niño event in 2009–2010, and subsequent landings have remained at historically low levels in the relevant squid fishing centers (Guaymas, Sonora, and Santa Rosalía, Baja California Sur). In this paper, we examined wind speed and chlorophyll a concentrations on the jumbo squid fishing grounds as factors that would be expected to be relevant to this prolonged period of low landings. Analysis from local weather stations, remote sensing, and fishery data showed that low jumbo squid landings from 2010 to 2015 occurred during a period of abnormally weak winter/spring winds and extremely low chlorophyll a concentrations off the East Guaymas Basin. Results indicate that the squid fishing area in the Guaymas region has been chronically impoverished during this period, and that this area may no longer be a productive habitat for jumbo squid. In response to this decreased productivity, size-at-maturity of jumbo squid showed a drastic decrease over the same period. Results are compared with the effect of El Niño 1997–1998 on the jumbo squid fishery and size-at-maturity of this species in the Gulf of California. The key difference between the recovery phases for El Niño 1997–1998 versus El Niño 2009–2010 was the anomalously low wind intensity as measured in the Guaymas fishing area after 2009.


16.
Libro
Implementación de señuelos artificiales en la pesca de pulpo al garete / Unai Markaida, Iván Méndez Loeza y Almendra Rodríguez Domínguez
Markaida Aburto, Unai ; Méndez Loeza, Iván (coaut.) ; Rodríguez Domínguez, Almendra (coaut.) ;
Campeche, Campeche, México : El Colegio de la Frontera Sur :: Fundación Produce Campeche , 2015
Clasificación: EE/594.56097264 / M3
Cerrar
SIBE Campeche
ECO040006687 (Disponible) , ECO040006686 (Disponible)
Disponibles para prestamo: 2
Cerrar
SIBE Chetumal
ECO030008665 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE San Cristóbal
ECO010019201 (Disponible) , ECO010019040 (Disponible)
Disponibles para prestamo: 2
Cerrar
SIBE Villahermosa
ECO050006280 (Disponible)
Disponibles para prestamo: 1
PDF
Índice

El pulpo Octopus maya
Historia de (a pesquería de pulpo en Campeche
Pesca de pulpo con señuelos
Pesca de pulpo al garete en Campeche
Unidad de pesca
El arte de pesca
La camada en la pesca de pulpo
Justificación
Señuelos artificiales
Conclusiones
Agradecimientos
Referencias bibliográficas


17.
Tesis - Maestría
Unidades domésticas y pesquerías en Isla Arena, Campeche / Monserrat García Sámano
García Sámano, Monserrat (autora) ; Gurri García, Francisco D. (director) ; Molina Rosales, Dolores Ofelia (asesora) ; Markaida Aburto, Unai (asesor) ;
Lerma, Campeche, México : El Colegio de la Frontera Sur , 2015
Disponible en línea
Clasificación: TE/333.956097264 / G3
Cerrar
SIBE Campeche
56318-60 (Disponible) , ECO040006189 (Disponible)
Disponibles para prestamo: 2
Cerrar
SIBE Chetumal
ECO030008450 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE San Cristóbal
ECO010005980 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Tapachula
ECO020013425 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Villahermosa
ECO050006003 (Disponible)
Disponibles para prestamo: 1
PDF
Índice

Capítulo I
Introducción
Antecedentes
Campeche e Isla Arena
Isla Arena
El Ciclo de Actividades en Isla Arena
Justificación
Pregunta de Investigación
Objetivo General
Objetivos Particulares
Metodología
Capítulo II
Resumen
Introducción
Materiales y Métodos
Resultados
Discusión
Referencias
Capítulo III
Conclusiones
Literatura citada
Anexos
Anexo 1
Anexo 2


18.
- Artículo con arbitraje
PDF PDF
Resumen en: Inglés |
Resumen en inglés

Two hundred sixty-one octopuses were obtained from August 2006 to June 2007 in Bahía de Los Angeles, BC, Mexico. Sizes ranged from 58–190 mm in mantle length. Diet was determined from 3 sources: the digestive tract analysis (hard rests), accumulations of hard prey remaining in refuges, and live prey present during capture. Ripe females had the greatest fullness weight index (FWI) whereas spawning/spent females had the lowest. During the spring, female and male octopuses showed the greatest FWI, whereas in summer they showed the lowest, coinciding with the spawning/spent stage. A total of 76 prey items from 8 phyla were found, with Mollusca being the most important phylum and xanthid crabs the most important prey year-round. During autumn and winter, more bivalves were consumed, whereas more crabs were consumed in spring. Males fed mainly on crabs during all gonad development stages, but spent males fed mostly on molluscs. In contrast, females fed mostly on molluscs, except ripe females, which included more crabs in their diet. The octopus Octopus bimaculatus appears to be a specialist consumer, and this selectivity could be a consequence of different energetic demands of each sex during the gonad ripening process.


PDF PDF
Resumen en: Inglés |
Resumen en inglés

Squid of the genus Lolliguncula Steenstrup, 1881 are small bodied, coastal species capable of tolerating low salinity. Lolliguncula sp. are found exclusively in the New World, although only one of the four recognized species (Lolliguncula brevis) occurs in the Atlantic Ocean. Preliminary morphological analyses suggest that Lolliguncula brevis populations in the North and South Atlantic may represent distinct species. The principal objective of the present study was to verify the phylogenetic relationships within the genus and test for the presence of possible cryptic species. Both gene and species tree topologies indicated that Lolliguncula brevis specimens from the North and South Atlantic represent distinct phylogenetic clades. In contrast with previous studies, L. panamensis was identified as the basal species of the genus. Our results provide important insights into the phylogenetic relationships among the Lolliguncula specimens analyzed, and confirm the genetic separation of Lolliguncula brevis populations of the North and South Atlantic at the level of sister species.


20.
- Capítulo de libro con arbitraje
*Solicítelo con su bibliotecario/a
Dosidicus gigas, humboldt squid
Rui, Rosa ; Yamashiro, Carmen (coaut.) ; Markaida Aburto, Unai (coaut.) ; Rodhouse, Paul G. K. (coaut.) ; Waluda, Claire M. (coaut.) ; Salinas Zavala, César Augusto (coaut.) ; Keyl, Friedemann (coaut.) ; O´Dor, Ron (coaut.) ; Stewart, Julia S. (coaut.) ; Gilly, William F. (coaut.) ;
Contenido en: Advances in squid biology, ecology and fisheries: myopsid squids New York : Nova Science Publishers, 2013 p. 169-206 ISBN:1-62808331X, 978-1628083316
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

Dosidicus gigas (Humboldt or jumbo squid) (Orbigny, 1835) is the largest ommastrephid squid, reaching up to 1.2m mantle length and 65kg in weight. This pelagic squid is endemic to the eastern Pacific Ocean and is particularly abundant in the highly productive waters of the California and Humboldt Current systems, and the Costa Rica Dome upwelling region. The intra-specific population structure of D. gigas is complex, since this species quickly responds to environmental variability driven by El Niño and LaNiña events in both current systems by rapidly changing its biological characteristics, such as somatic and reproductive investment. Oocyte development is asynchronous and the potential fecundity averages around 18–21 million oocytes; the maximum value estimated (32 million oocytes) is the largest ever recorded for any cephalopod so far. Hatching occurs between 6 to 9 days after fertilization at 18°C, but temperatures below 15°C and above 25°C do not allow complete embryonic development. D. gigas passes through a posthatching paralarval stage called the rhynchoteuthion and during this stage the two tentacles are fused into a well-developed proboscis. During the paralarval and subsequent juvenile stages Humboldt squid have a monthly growth rate of up to 80 mm in mantle length, and grow up 60 mm per month in the later stages. This is the highest growth rate reported for any cephalopod species, and enables this species to reach the reported maximum mantle lengths in a short lifespan (12 to 24 months). Although the lack of population structure across its large range suggests a high level of gene flow and substantial horizontal migration, specific migratory pathways in the Pacific Ocean have not yet been demonstrated. Long-distance migration is an important element in the lifehistory of Humboldt squid and may be associated with differential growth rates and size and at full maturity.

The recent poleward range expansion of D. gigasis likely associated with warmer periods following El Niño/La Niña events, an ongoing expansion of the oxygen minimum zone (OMZ) in the Eastern Pacific, and changing ecosystem interactions including food availability, competition and predation. Humboldt squid feed primarily on small mesopelagic (midwater) fishes, crustaceans, and cephalopods as well as commercially important coastal fishes and squid in the recently expanded range. Typical daily behavior involves vertical migrations from near-surface waters at nighttime to mesopelagic depths above or within the OMZ during the daytime. Whereas the OMZ restricts the depth distribution of many competing vertebrate predators to the upper surface layers due to limited hypoxia tolerance, D. gigas circumvents similar restrictions via metabolic suppression. In addition to its critical role both as prey and predator in the eastern Pacific, D. gigas is an economically important species and the target of what has recently become the world’s largest invertebrate fishery.