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  • 1
    Publication Date: 2021-05-19
    Description: El pasado 27 de octubre del 2005, el tardío huracán Beta categoría 1 impactó la plataforma insular de las islas de Old Providence y Santa Catalina durante dos días de vientos fuertes y más de dos semanas de lluvias persistentes. El huracán Beta tuvo un tamaño pequeño, pero una significativa capacidad destructiva dado que permaneció estacionario o con mínima velocidad de translación. Utilizando la metodología de muestreos de observación rápida, los técnicos de la Corporación para el Desarrollo Sostenible del Archipiélago de San Andrés - CORALINA - estimaron los daños sufridos en los diferentes ecosistemas terrestres, costeros y marinos. En este trabajo sólo se reportarán los efectos ambientales observados sobre los arrecifes de coral en 11 estaciones a lo largo de la plataforma insular. En general, se encontraron los mayores daños en los parches coralinos someros de la sección norte de la plataforma, los cuales tuvieron mortalidades hasta del 20%. Sin embargo, colonias de gran tamaño sufrieron fracturas, volcamientos, blanqueamiento y otras enfermedades. Los resultados de este trabajo fueron utilizados para formular acciones posteriores de recuperación.
    Description: On October 27, 2005, the late hurricane Beta category 1 made impact on the Old Providence and Santa Catalina and Insular Platform for two days of strong winds and over two weeks of persistent rainfall. Hurricane Beta was small in size but had a significant destructive capacity due to the fact that it remained stationary or with minimal translation velocity. Using the quick observation sampling methodology, the San Andres Archipelago Sustainable Development Corporation technicians -CORALINA- estimated the damages suffered by the different shore, coastal, and marine ecosystems. In this paper only the environmental effects observed on the coral reefs at 11 stations along the insular platform will be reported. In general, the most considerable damages on the shallow coral patch north the platform, which had mortalities up to 20%. However, colonies of great size suffered fractures, overturning, whitening and other diseases. The findings of this work were used for further recovery actions.
    Description: Published
    Keywords: Mortalidad corales ; Efecto huracán ; ASFA_2015::M::Marine biology ; ASFA_2015::C::Climatic zones ; ASFA_2015::M::Meteorology
    Repository Name: AquaDocs
    Type: Journal Contribution , Not Known
    Format: pp.71-77
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  • 2
    Publication Date: 2021-05-19
    Description: La langosta espinosa es la principal pesquería del Archipiélago de San Andrés, sin embargo sus patrones de distribución especial y temporal aun se desconocen. En este trabajo se presenta una experiencia de co-manejo para localizar las principales áreas de pesca y las tendencias de abundancia de langosta en una región intensamente explotada pero con mínimo conocimiento científico. Un total de 20,870 sitios se obtuvieron de 26 bitácoras de capitanes de la pesca con nasa en un período de 12 años. Posiciones geográficas de las líneas de nasas fueron localizadas utilizando un sistema de información geográfica para generar mapas temáticos de las áreas mensuales y anuales de pesca y de sus abundancias. La sección de la plataforma Nicaragüense que pertenece a Colombia (Green Moon) fue identificada como la zona de pesca de mayor uso (68.3%), y secciones de la plataforma de Quitasueño representaron un 14%. Sorpresivamente, se encontraron zonas de pesca aisladas y no cartografiadas en las cartas náuticas que están siendo pescadas y que resultaron de gran interés, no solo por su pequeña extensión, sino también porque allí se presentaron las densidades de langostas más altas. En promedio 1,750 km2 (±SD=1,025) fueron pescados mensualmente, con cada barco usando 179 km2*mes-1 (±SD= 74). Las nasas se mueven de un área a otra dependiendo del mes, pero Green Moon es pescada todo el año. Las máximas áreas de Pesca fueron determinadas en Agosto, coincidiendo con el pico mayor de la reproducción. El área de pesca anual se extendió a 2,841 km2*year-1 (±SD=585). De los 6,227 km2 del total del área de pesca, solo el 6% (1,060 km2) fue considerada como zonas de alta densidad. La densidad de langosta disminuyó de 14.1 lobster.'lingada'-1 en 1994 a solo 2.9 lobster.'lingada' -1 en 2005. Se resalta la importancia de poder unir información de pescadores y de manejadores, compartir el conocimiento que cada grupo posee y ser capaces de manejar este recurso pesquero tan importante de una manera sostenible.
    Description: The bony lobster is the main fishing activity in the San Andres Archipelago, however detailed knowledge of its spatial and temporal distribution patterns remains unknown. This paper presents an experience of co-management in order to locate main fishing areas s well as the lobster abundance trends in a highly exploited region with minimal previous scientific information. Atotal of 20,870 geographical locations of trap line settings were obtained from 26 captain logs over a twelve- year period. Positions of fishing trap lines were plotted using a geographic information system to generate thematic maps identifying fishing areas on a monthly and yearly basis to determine lobster abundance. The section of the Nicaraguan shelf which belongs to Colombia (Green Moon) was the region supporting the most fishing effort (68.3% of trap locations) and sections of Quitasueño shelf accounted for 14% of the fishing ground. Several, isolated and uncharted locations were identified which expanded the range of known lobster habitat with high lobster densities. On average 1,750 km2 (±SD=1,025) were monthly caught, with each boat covering 179 km2*month-1 (±SD= 74). Traps were moved from one area to another depending on the month, but Green Moon is fished year round. The largest fishing areas were observed in August, coinciding with the peak in lobster reproduction. Annual fishing areas included 2,841 km2*year-1 (±SD=585). Out of the 6,227 km2 of the overall fishing area, only 6% (1,060 km2) were considered a high density of lobster zone. Lobster density decreased from 14.1 lobster per 'lingada'-1 in 1994 to 2.9 lobster per 'lingada' -1 in 2005. Lingada is the common word utilized by fishermen to estimate the number of traps in a line and it is understood as a set with 25 traps, with a line having usually four lingadas (100 traps), The importance of bringing fishermen and managers together to share the knowledge each group possesses and to be able to handle a valuable fishing resource in a sustainable way has been pointed out.
    Description: Published
    Keywords: Abundancia langosta ; Panulirus argus. ; Langosta espinosa. ; Participación pescadores. ; ASFA_2015::M::Marine biology
    Repository Name: AquaDocs
    Type: Journal Contribution , Not Known
    Format: pp.156-166
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  • 3
    Publication Date: 2021-05-19
    Description: El caracol pala, Strombus gigas, endémico del Caribe es una especie con poblaciones diezmadas por lo que es objeto de protección internacional desde 2002. Los patrones de dispersión de sus larvas pueden ser una alternativa de recuperación considerando las limitaciones de movilidad de sus adultos. Sin embargo, muy poco es lo que se conoce sobre la abundancia y desplazamiento de sus larvas en los atolones de la Reserva de Biósfera (RB) Seaflower, una de las pocas regiones que aun tiene poblaciones abundantes. En este estudio se modeló la dinámica de dispersión larvas de caracol pala entre 78,5º y 83,5º longitud W y 10º y 17º latitud N. Las corrientes fueron calculadas con datos satelitales de las anomalías del nivel del mar, y corregidas para integrar efectos de la capa de Ekman. Datos diarios del estado de tiempo (clima en escala sinóptica) entre 2007-2009, fueron así mismo incluidos. Los resultados mostraron que en escalas de 10´s km (mesoescala) los campos hidrodinámicos dependen del estado del tiempo oceánico y forman remolinos de turbulencia cuasi-geostrófica, siendo procesos no lineales. El transporte de larvas, por lo tanto, tuvo que simularse para condiciones “instantáneas” diarias, originándose teóricamente en 28 sitios de 10 atolones durante el periodo reproductivo que sucede entre abril y octubre, e ilustrados como totales mensuales.
    Description: Published
    Keywords: Caracol para Strombus gigas. ; Dinámica de larvas. ; Caribe occidental colombiano. ; ASFA_2015::M::Marine biology ; ASFA_2015::D::Dynamical oceanography
    Repository Name: AquaDocs
    Type: Journal Contribution , Not Known
    Format: pp.8-24
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  • 4
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    In:  http://aquaticcommons.org/id/eprint/13376 | 9596 | 2014-02-04 12:45:00 | 13376 | Gulf and Caribbean Fisheries Institute
    Publication Date: 2021-06-28
    Keywords: Fisheries ; GCFI
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 492-497
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  • 5
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    In:  http://aquaticcommons.org/id/eprint/13023 | 9596 | 2014-02-19 20:17:38 | 13023 | Gulf and Caribbean Fisheries Institute
    Publication Date: 2021-07-07
    Description: Page range is taken from table of contents for Proceedings volume (page numbers in deposited article are incorrect due to publishing error).
    Keywords: Fisheries ; GCFI
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 351-356
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  • 6
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    NOAA | Seattle, WA
    In:  http://aquaticcommons.org/id/eprint/2489 | 403 | 2011-09-29 18:56:59 | 2489 | United States National Marine Fisheries Service
    Publication Date: 2021-07-13
    Description: As part of a multibeam and side scan sonar (SSS) benthic survey of the Marine Conservation District (MCD) south of St. Thomas, USVI and the seasonal closed areas in St. Croix—Lang Bank (LB) for red hind (Epinephelus guttatus) and the Mutton Snapper (MS) (Lutjanus analis) area—we extracted signals from water column targets that represent individualand aggregated fish over various benthic habitats encountered in the SSS imagery. The survey covered a total of 18 km2 throughout the federal jurisdiction fishery management areas. The complementary set of 28 habitat classification digital maps covered a total of 5,462.3 ha;MCDW (West) accounted for 45% of that area, and MCDE (East) 26%, LB 17%, and MS the remaining 13%. With the exceptionof MS, corals and gorgonians on consolidated habitats were significantly more abundant than submerged aquatic vegetation (SAV) on unconsolidated sediments or unconsolidated sediments. Continuous coral habitat was the most abundant consolidated habitat for both MCDW and MCDE (41% and 43% respectively). Consolidated habitats in LB and MS predominantly consisted of gorgonian plain habitat with 95% and 83% respectively. Coral limestone habitat was more abundant than coral patch habitat; it was found near the shelf break in MS, MCDW, and MCDE. Coral limestone and coral patch habitats only covered LB minimally. The high spatial resolution (0.15 m) of the acquired imagery allowed the detection of differing fish aggregation (FA) types. Thelargest FA densities were located at MCDW and MCDE over coral communities that occupy up to 70% of the bottom cover.Counts of unidentified swimming objects (USOs), likely representing individual fish, were similar among locations and occurred primarily over sand and shelf edge areas. Fish aggregation school sizes were significantly smaller at MS than the other three locations (MCDW, MCDE, and LB). This study shows the advantages of utilizing SSS in determining fish distributions and density.
    Keywords: Ecology ; Management ; Fisheries
    Repository Name: AquaDocs
    Type: book_section , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 88-104
    Format: 124
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