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  1. AU="Luis, Freites"
  2. AU="Blüher, Anja"
  3. AU="Sereduk, Chris"
  4. AU="do Nascimento Petter, Gustavo"
  5. AU=Rosenow E C 3rd
  6. AU="Dollfus, H"
  7. AU=Shukla Ashutosh M
  8. AU=Dowsey Andrew W AU=Dowsey Andrew W
  9. AU="Berson, Eloise" AU="Berson, Eloise"
  10. AU="Kettunen, Jere"
  11. AU="O'Larey, Timothy D"
  12. AU="Qiu, Tom"
  13. AU="Gindel, Theresa"
  14. AU="Xie, Lijian"
  15. AU=Davis Christopher S.
  16. AU="Oliver E Blacque"
  17. AU="Gontijo, Daniel Lopes"
  18. AU="Koch, P"
  19. AU="Shimul Chowdhury"
  20. AU="Hall, Peter E"
  21. AU="Obraztsov, Petr A"
  22. AU="Santacaterina, Fabio"
  23. AU="Rosales, M E"
  24. AU=Kallmes D F
  25. AU="Ge, Xiaomeng"
  26. AU="Michaloliakos, I"
  27. AU="Rayce, Signe Boe"
  28. AU="Heiman Joel"
  29. AU=Rashedi Jalil
  30. AU="Rodríguez-Tovar, Aída Verónica"

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  1. Artikel ; Online: El desgaste profesional o síndrome de estrés laboral asistencial ("Burnout") entre los profesionales de la salud de la cuidad de Córdoba

    Bernardo J Gandini / Silvia S Paulini / Marcos J Irusta / Jorge Sales / Luis Freites

    Revista de la Facultad de Ciencias Médicas de Córdoba, Vol 63, Iss

    2019  Band 1

    Abstract: Con el objeto de cuantificar lo que acontece, entre los integrantes del equipo de salud en el ámbito público y privado de la ciudad de Córdoba, se lleva a cabo la presente investigación. Diseño observacional transversal comparativo sobre muestra ... ...

    Abstract Con el objeto de cuantificar lo que acontece, entre los integrantes del equipo de salud en el ámbito público y privado de la ciudad de Córdoba, se lleva a cabo la presente investigación. Diseño observacional transversal comparativo sobre muestra estratificada de médicos y fisioterapeutas. La recolección de datos se realizó mediante encuesta de auto-reporte de "Maslach Burnout lnventory' (MBI). Fueron estudiados 479 profesionales. el 22,3%(107) eran Fisioterapeutas y Kinesiólogos y 77.7% (372) Médicos de diferentes especialidades. Se puede concluir que en el ámbito público, los valores de cansancio emocional se hallan en los rangos publicados, despersonalización y falta de realización personal son menores. Entre los hospitales no difieren significativamente. En el Hospital General del ámbito Provincial, el Burnout es similar al de otros países y superior al de los dos locales. En el ámbito privado los niveles de cansancio emocional son significativamente mayores que en el público, en el Servicio de Emergencia los valores exceden los rangos publicados. Entre los Pre-Resiclentes, los niveles de estrés son moderados y no parecen variar: el Burnout se hallaría por debajo de los niveles esperados. El estrés promedio de los fisioterapeutas y kinesióiogos se halla en niveles moderados y es menor al de médicos del ámbito público de la ciudad de Córdoba. pero comparable al de los residentes y clínicos. Los especialistas Medicina Legal del Ministerio Público Fiscal. Presentan el más alto porcentaje de síndrome de Burnout completo.
    Schlagwörter desgaste profesional ; estrés laboral ; burnout ; Medicine ; R ; Medicine (General) ; R5-920
    Sprache Englisch
    Erscheinungsdatum 2019-12-01T00:00:00Z
    Verlag Universidad Nacional de Córdoba
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  2. Artikel ; Online: Hanging culture of juveniles of the winged oyster Pteria sterna in two baskets of different design

    Luis Freites / Franklin Jara / María Gregori / Jimmy Villón / Adrián Márquez / Daniel Rodríguez Pesantes / César Lodeiros

    AquaTechnica, Vol 1, Iss 1, Pp 28-

    2019  Band 39

    Abstract: The aim of this study was to determine the growth and survival of juveniles of the winged oyster Pteria sterna, culture in two types of baskets manufactured with local materials. These were ‘one floor baskets’ (OFB) and ‘three floor baskets’ (TFB), hung ... ...

    Abstract The aim of this study was to determine the growth and survival of juveniles of the winged oyster Pteria sterna, culture in two types of baskets manufactured with local materials. These were ‘one floor baskets’ (OFB) and ‘three floor baskets’ (TFB), hung from two ‘long lines’ in two study sites, Ayangue and Palmar, Province of Santa Elena, Ecuador, over a five months experimental culture period. Environmental variables monitored included total particulate matter and its organic and phytoplanktonic fraction (chlorophyll a), temperature, and dissolved oxygen. Individuals showed an initial length, height (dorso-ventral) and thickness (inter-valvar) shell axis of 18.7 ± 0.32; 18.2 ± 0.29 and 7.4 ± 0.18 mm, respectively; and the soft tissue mass, shell mass and total mass were: 1.03 ± 0.04; 0.11 ± 0.005; 1.14 ± 0.04 g, respectively. At the end of the period, biometric and survival parameters were recorded. The individuals cultured in Ayangue using TFB showed increments in shell, soft tissues and total mass that were significantly higher than those from the OFB. Similar results, but with lower increments, were obtained by the individuals cultivated at Palmar site. The ANOVA II showed that the site, type of basket and the interaction between the two had a significant effect on the growth of the oysters. Survival exceeded 80% at both sites and for both basket types, but no significant differences were observed between site and basket type. Considering the growth and survival obtained for both types of baskets, we recommend the TFB baskets for winged oyster cultivation in these regions.
    Schlagwörter growth ; suspended culture ; pearl oyster ; predation ; eastern tropical pacific ; crecimiento ; cultivo suspendido ; ostras perleras ; depredación ; pacifico tropical oriental ; Geography. Anthropology. Recreation ; G ; Economic biology ; QH705-705.5 ; Ecology ; QH540-549.5
    Thema/Rubrik (Code) 580
    Sprache Englisch
    Erscheinungsdatum 2019-12-01T00:00:00Z
    Verlag Universidad Técnica de Manabí
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  3. Artikel: Biometric and reproductive aspects of the pen shell Atrina seminuda (Bivalvia: Pinnidae) in northeastern Venezuela

    Rangel, Maria Salomé / Alejandro Tagliafico / Jeremy Mendoza / José Silva / Luis Freites / Natividad Garcia

    Molluscan Research. 2017 Apr. 3, v. 37, no. 2

    2017  

    Abstract: The pen shell Atrina seminuda is a target for a small artisanal Caribbean fishery; however, little is known about its biology. The length frequency distribution, biometric relations and reproduction of this species were studied in northeastern Venezuela. ...

    Abstract The pen shell Atrina seminuda is a target for a small artisanal Caribbean fishery; however, little is known about its biology. The length frequency distribution, biometric relations and reproduction of this species were studied in northeastern Venezuela. Using transects selected from among 360 stations a population was sampled monthly by SCUBA diving. An analysis of 1748 individuals showed a shell height (SH) between 4 cm and 23.6 cm, with an average of 16.7 ± 2.5 cm. For both sexes, statistical differences in mean SH were observed (analysis of variance F (1, 1113) = 69.538; P < 0.001); organisms larger than 22 cm were females, whereas those between 8 and 10 cm were males. Log-linear regressions were estimated for shell length (SL), total weight (TW) and adductor muscle weight (MW) as a function of SH . In all cases there were statistical differences between males and females, with males presenting positive allometry and females showing isometry. Mean SH at maturity for males (8.24 cm) was lower than for females (11.88 cm), and for sexes combined was estimated at 8.71 cm. Gametogenic activity was observed throughout the year, with two main peaks of spawning (April and August/September 2008). All this information is crucial for demographic modelling and stock assessment for managing this species.
    Schlagwörter allometry ; analysis of variance ; Atrina seminuda ; females ; fisheries ; frequency distribution ; gametogenesis ; gender differences ; males ; models ; muscles ; spawning ; traditional technology ; Caribbean ; Venezuela
    Sprache Englisch
    Erscheinungsverlauf 2017-0403
    Umfang p. 88-97.
    Erscheinungsort Taylor & Francis
    Dokumenttyp Artikel
    ISSN 1448-6067
    DOI 10.1080/13235818.2016.1231303
    Datenquelle NAL Katalog (AGRICOLA)

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  4. Artikel ; Online: Influence of environmental factors on the growth of the juvenile, maturing juvenile, and adult tropical scallop, Euvola ziczac (Pteroida

    César Lodeiros / Luis Freites / Alfonso Maeda-Martínez / John H Himmelman

    Latin American Journal of Aquatic Research, Vol 40, Iss 1, Pp 53-

    Pectinidae), in suspended culture conditions Influencia de los factores ambientales en el crecimiento de juveniles, juveniles con capacidad reproductiva y adultos de la vieira tropical Euvola ziczac (Pteroida: Pectinidae) en condiciones de cultivo suspendido

    2012  Band 62

    Abstract: We carried out growth trials on three size groups of the scallop, Euvola ziczac, during two short-term (34-36 days) periods at 8, 21, and 34 m depth in Cariaco Gulf, Venezuela, in order to evaluate the effect of environmental factors on growth. Growth ... ...

    Abstract We carried out growth trials on three size groups of the scallop, Euvola ziczac, during two short-term (34-36 days) periods at 8, 21, and 34 m depth in Cariaco Gulf, Venezuela, in order to evaluate the effect of environmental factors on growth. Growth was greater in juveniles (initial size: 20-22 mm shell length) than in maturing juveniles (30-40 mm) and adults (70-75 mm). Somatic tissue growth was more than two-fold greater in juveniles than in maturing individuals. Adult scallops showed losses of tissue mass. The first period (December-January) covered the transition from a stratified water column to upwelling conditions, with initial high temperatures and low phytoplankton biomass followed by lower temperatures and greater phytoplankton biomass. The second period (February-March) consisted of upwelling, characterized by low temperatures and high phytoplankton production. The greater growth of juvenile and maturing scallops during the second period, particularly at 8 m depth, was associated with the greater availability of phytoplankton, related to coastal upwelling. The first development of gonads in maturing scallops only occurred in the second period, associated with food availability, and the degree of development was correlated with the depth. Our growth trials, which were too short to permit the negative impact of the development of fouling, showed that the growth of E. ziczac was enhanced in the presence of abundant phytoplankton biomass. Se efectuaron ensayos de crecimiento en tres grupos de tallas del pectínido Euvola ziczac, durante dos periodos de corto plazo (34-36 días) a 8, 21 y 34 m de profundidad, en el golfo de Cariaco, Venezuela, para evaluar el efecto de factores ambientales en el crecimiento. El crecimiento fue mayor en juveniles (talla inicial 20-22 mm en longitud de concha), que en individuos madurando (30-40 mm) y adultos (70-75 mm). El crecimiento del tejido somático fue más del doble en los juveniles que en los organismos en estado de maduración. Los individuos maduros mostraron ...
    Schlagwörter crecimiento ; vieira ; profundidad ; surgencia costera ; golfo de Cariaco ; Venezuela ; growth ; scallop ; depth ; coastal upwelling ; Cariaco Gulf ; Aquaculture. Fisheries. Angling ; SH1-691 ; Oceanography ; GC1-1581 ; Biology (General) ; QH301-705.5
    Sprache Englisch
    Erscheinungsdatum 2012-03-01T00:00:00Z
    Verlag Escuela de Ciencias del Mar, Facultad de Recursos Naturales, Pontificia Universidad Católica de Valparaíso
    Dokumenttyp Artikel ; Online
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  5. Artikel: Growth and survival of the winged pearl oyster Pteria sterna (Gould, 1851) in suspended culture in the tropical Eastern Pacific: Influence of environmental factors

    Lodeiros, César / Daniel Rodríguez‐Pesantes / Adrian Márquez / Jormil Revilla / Luis Freites / Carla Lodeiros‐Chacón / Stanislaus Sonnenholzner

    Aquaculture research. 2018 Feb., v. 49, no. 2

    2018  

    Abstract: The growth, survival and influence of environmental factors were analysed in two cohorts of cultured Pteria sterna in Ayangue Bay, Province of Santa Elena, Ecuador (tropical Eastern Pacific). Juveniles representing cohorts I and II (8.4 ± 0.54 and 5 ... ...

    Abstract The growth, survival and influence of environmental factors were analysed in two cohorts of cultured Pteria sterna in Ayangue Bay, Province of Santa Elena, Ecuador (tropical Eastern Pacific). Juveniles representing cohorts I and II (8.4 ± 0.54 and 5.0 ± 0.17 mm in dorso‐ventral axis) were deployed in November 2015 and February 2016, and grown in pearl nets suspended in a long line for 12 and 10 months respectively. The stocking density was monthly and bi‐monthly reduced during sampling of individuals to determine growth in dorso‐ventral shell axis, dry mass of shell, soft tissues and dry mass of fouling on shell. Water temperature, salinity, total seston and phytoplankton biomass (chlorophyll a) were determined at the culture site. Results showed that P. sterna reached ~100 mm in length during the first year of culture. Although little negative influence of environmental factors was detected, high temperatures during the reproduction period can be the most negative influential trait. The highest tissue mass (6 g), which occurred at the 10th month of cultivation, as well as a high availability of spat by artificial collectors in the coastal waters, showed that the species can be considered a good candidate for aquaculture in the tropical eastern Pacific.
    Schlagwörter Pteria sterna ; aquaculture ; biomass ; chlorophyll ; coastal water ; collectors ; environmental factors ; fouling ; juveniles ; nets (equipment) ; phytoplankton ; reproduction ; salinity ; seston ; stocking rate ; tissues ; water temperature ; Ecuador
    Sprache Englisch
    Erscheinungsverlauf 2018-02
    Umfang p. 832-838.
    Erscheinungsort John Wiley & Sons, Ltd
    Dokumenttyp Artikel
    Anmerkung JOURNAL ARTICLE
    ZDB-ID 1227359-4
    ISSN 1355-557X
    ISSN 1355-557X
    DOI 10.1111/are.13514
    Datenquelle NAL Katalog (AGRICOLA)

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  6. Artikel ; Online: Componentes bioquímicos de los tejidos de Perna perna y P. viridis (Lineo, 1758) (Bivalvia

    Vanessa Acosta / Yolimar Natera / César Lodeiros / Luis Freites / Aléikar Vásquez

    Latin American Journal of Aquatic Research, Vol 38, Iss 1, Pp 37-

    Mytilidae), en relación al crecimiento en condiciones de cultivo suspendido Biochemical components of the tissues of Perna perna and P. viridis (Lineo, 1758) (Bivalvia: Mytilidae), in relation to the growth under conditions of suspended cultivation

    2010  Band 46

    Abstract: Se evaluó los cambios ocurridos en carbohidratos, proteínas y lípidos de la glándula digestiva, músculo y lóbulos gonadales de los mejillones Perna perna y P. viridis bajo condiciones de cultivo suspendido en el Golfo de Cariaco, Venezuela. Paralelamente, ...

    Abstract Se evaluó los cambios ocurridos en carbohidratos, proteínas y lípidos de la glándula digestiva, músculo y lóbulos gonadales de los mejillones Perna perna y P. viridis bajo condiciones de cultivo suspendido en el Golfo de Cariaco, Venezuela. Paralelamente, se llevaron registros de la condición reproductiva de ambas especies y de temperatura, clorofila a y seston. Los resultados muestraron que en los tejidos analizados de ambas especies, los lóbulos gonadales presentaron las mayores variaciones de los sustratos energéticos estudiados. La variación de los sustratos energéticos se explicó en ambos mejillones mediante desarrollo gonádico y la disponibilidad de alimento, particularmente clorofila a para P. perna y seston total para P. viridis. La temperatura fue un factor que afectó negativamente a P. viridis. Los contenidos de los diferentes sustratos energéticos observados en P. perna fueron más altos que en P. viridis, a lo largo de casi todo el periodo experimental, lo que indicó que esta especie mostró una mayor capacidad para explotar de manera más eficiente los recursos alimenticios presentes en las condiciones de cultivo suspendido. In the organisms, the variations of the biochemical composition of reproductive and somatic tissues in the growth permit to infer about its adaptative to environment. In the present study, we evaluate the changes observed in carbohydrates, lipids and proteins of digestive gland, muscle and gonad tissues of Perna perna and P. viridis, growing in suspended culture at Cariaco Gulf , Venezuela. The reproductive condition of both mussels and environmental factors (temperature, chlorophyll a and of the seston) were determinate. The results show that, in both species, the gonadic lobes showed the highest variations in the biochemical component. The variations in the biochemical components were direct explained by the variations in the gonad development and the food availability, particularly chlorophyll a for P. perna and total seston for P. viridis. The temperature was a negative factor ...
    Schlagwörter mejillón ; crecimiento ; composición bioquímica ; ambiente ; Golfo de Cariaco ; Venezuela ; mussel ; growth ; biochemical composition ; environment ; Cariaco Gulf ; Aquaculture. Fisheries. Angling ; SH1-691 ; Oceanography ; GC1-1581 ; Biology (General) ; QH301-705.5
    Sprache Englisch
    Erscheinungsdatum 2010-01-01T00:00:00Z
    Verlag Escuela de Ciencias del Mar, Facultad de Recursos Naturales, Pontificia Universidad Católica de Valparaíso
    Dokumenttyp Artikel ; Online
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  7. Artikel ; Online: Densidad, crecimiento y supervivencia de juveniles de Lyropecten (Nodipecten) nodosus (Pteroida

    Vanessa Acosta / Luis Freites / César Lodeiros

    Revista de Biología Tropical, Vol 48, Iss 4, Pp 799-

    Pectinidae) en cultivo suspendido en el Golfo de Cariaco, Venezuela

    2000  Band 806

    Abstract: El efecto de la densidad sobre el crecimiento y la supervivencia de juveniles del pectínido Lyropecten nodosus se estudió en condiciones de cultivo intermedio en el Golfo de Cariaco, Estado Sucre, Venezuela (diciembre 93 - julio 94). Se evaluaron seis ... ...

    Abstract El efecto de la densidad sobre el crecimiento y la supervivencia de juveniles del pectínido Lyropecten nodosus se estudió en condiciones de cultivo intermedio en el Golfo de Cariaco, Estado Sucre, Venezuela (diciembre 93 - julio 94). Se evaluaron seis densidades de siembra (7, 15, 30, 60, 125 y 250 ejemplares/cesta) con una longitud y una masa seca inicial de 9.4 + 0.18 mm y 0.007 + 0.0026 g, respectivamente. Los juveniles fueron colocados en cestas japonesas "pearl nets" y posteriormente suspendidas en un "long line" a 8 m de profundidad. Los patrones de crecimiento en cada uno de los compartimientos del soma fueron similares, pero con magnitudes diferentes e inversamente proporcionales a la densidades de cultivo; sin embargo, la supervivencia no fue afectada significativamente, sugiriendo que la competencia intraespecífica de los organismos en cultivo provocó un estrés notable, aunque insuficiente para causar mortalidad. Los resultados y estrategias proyectadas para el cultivo intermedio de L. nodosus sugieren un procedimiento de disminución de la densidad de organismos a través de desdobles sucesivos en un período de cultivo de seis meses obteniendo tallas cercanas a los 50 mm para comenzar el cultivo de engorde. The effect of culture density on growth and survival of juveniles was studied in the scallop Lyropecten nodosus with intermediate hanging cultures in Golfo de Cariaco, Sucre state, Venezuela, from December 1993 to July 1994. Six spat-densities (7, 15, 30, 60, 125 and 250 scallops/nets) were evaluated. The initial shell height and dry mass tissue were 9.4 + 0.18 mm and 0.007 + 0.0026 g, respectively. The specimens were placed into pearl nets and suspended in a long line at 8 m depth. Growth patterns of somatic tissue were similar, but with different magnitudes and inverse proportionality to culture density. No effect of density was observed on survival. These results suggest that intraspecific competition of cultivated scallops cause stress, which affects growth but not survival. We suggest as ...
    Schlagwörter Golfo de Cariaco ; Venezuela ; scallop ; culture density ; hanging culture ; Lyropecten (Nodipecten) nodosus ; Biology (General) ; QH301-705.5
    Sprache Englisch
    Erscheinungsdatum 2000-12-01T00:00:00Z
    Verlag Vicerractoría Investigación
    Dokumenttyp Artikel ; Online
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  8. Artikel: El desgaste profesional o síndrome de estrés laboral asistencial ("burnout") entre los profesionales de la salud de la ciudad de Córdoba.

    Gandini, Bernardo J / Paulini, Silvia S / Marcos, Irusta J / Jorge, Sales / Luis, Freites

    Revista de la Facultad de Ciencias Medicas (Cordoba, Argentina)

    2006  Band 63, Heft 1, Seite(n) 18–25

    Abstract: With the intention of quantifying what occurs, between the members of the equipment of health in the public and deprived scope of the city of Cordoba, the present investigation is carried out. Comparative cross-sectional design observacional on ... ...

    Titelübersetzung The professional wearing down or syndrome of welfare labor stress ("burnout") among health professionals in the city of Cordoba.
    Abstract With the intention of quantifying what occurs, between the members of the equipment of health in the public and deprived scope of the city of Cordoba, the present investigation is carried out. Comparative cross-sectional design observacional on stratified sample of doctors and fisioterapeutas. The data collection was made by means of survey of car-reports of "Maslach Burnout Inventory" (MBI). 479 professionals were studied, 22.3% (107) they were Fisioterapeutas and Kinesiólogos and 77.7% (372) Doctors of different specialties. It is possible to be concluded that in the public scope, the values of emotional fatigue are in the published ranks, despersonalizaci6n and lack of personal accomplishment is smaller. Between the hospitals they do not differ significantly. In the General Hospital of the Provincial scope, the Burnout is similar to the one of other countries and superior to the one of both local. In the private scope the levels of emotional fatigue are significantly greater than in the public, in the Service of Emergency the values exceed the published ranks. Between Pre-Residentes, the stress levels are moderate and they do not seem to vary; the Burnout would be below the awaited levels. Stress average of fisioterapeutas and kinesiólogos is in moderate levels and is smaller to the one of doctors of the public scope of the city of Cordova, but comparable to the one of the clinical residents and. The specialists Legal Medicine of the Fiscal Public Ministry, present/display the highest percentage of syndrome of complete Burnout.
    Mesh-Begriff(e) Adult ; Aged ; Argentina/epidemiology ; Burnout, Professional/epidemiology ; Burnout, Professional/psychology ; Cross-Sectional Studies ; Emotions ; Female ; Health Personnel/psychology ; Health Personnel/statistics & numerical data ; Humans ; Internship and Residency/statistics & numerical data ; Male ; Medical Staff/psychology ; Middle Aged ; Occupational Health/statistics & numerical data ; Private Sector ; Public Sector ; Sex Factors ; Surveys and Questionnaires ; Syndrome ; Workload
    Sprache Spanisch
    Erscheinungsdatum 2006
    Erscheinungsland Argentina
    Dokumenttyp English Abstract ; Journal Article
    ZDB-ID 390127-0
    ISSN 1853-0605 ; 0014-6722 ; 0301-7281
    ISSN (online) 1853-0605
    ISSN 0014-6722 ; 0301-7281
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  9. Artikel ; Online: Contribution of food availability to the more rapid growth of the scallop, Euvola ziczac (Pteroida, Pectinidae) in bottom than in suspended culture

    Patrick Hunauld / Anibal Vélez / Noris Jordan / John H Himmelman / Francisco Morales / Luis Freites / César J Lodeiros

    Revista de Biología Tropical, Vol 53, Iss 3-4, Pp 455-

    2005  Band 461

    Abstract: We conducted a 5-month experiment at Turpialito in the Golfo de Cariaco, Venezuela, to examine whether the previously reported more rapid growth of scallop Euvola ziczac in bottom compared to suspended culture can be attributed to more abundant or higher ...

    Abstract We conducted a 5-month experiment at Turpialito in the Golfo de Cariaco, Venezuela, to examine whether the previously reported more rapid growth of scallop Euvola ziczac in bottom compared to suspended culture can be attributed to more abundant or higher quality food resources near the sediment/water interface. The various body components (shell, muscle, digestive gland, gonad and remaining tissues) increased in size at a much greater rate for scallops maintained on the bottom, in partly buried cages at 5 m in depth, than in cages suspended at the same depth in the water column. Furthermore, survival was greater on the bottom. Food abundance and quality were examined by analyzing the seston collected in sediment traps at the sediment/water interface in the vicinity of the bottom cages and next to the suspended cages. Phytoplankton abundance (chlorophyll a) and the proportion of various fatty acids in the lipid fraction of the seston were similar on the bottom and in suspension. However, sestonic protein, lipid and carbohydrate levels, and the estimated energetic content of the seston, were higher on the bottom than in suspension, and probably contributed to the greater growth on the bottom. As the increase in the energetic content of the seston on the bottom compared to in suspension was less than the increase in growth (biomass) on the bottom compared to in suspension, and the evidence showed in previous studies above the negative influence of fouling and wave action in suspended culture, we conclude that the more rapid growth of Euvola ziczac in bottom than suspended culture is principally due to stress relative to suspended culture system. Rev. Biol. Trop. 53(3-4): 455-461. Epub 2005 Oct 3.
    Schlagwörter Scallop ; Euvola ziczac ; growth ; suspended culture ; bottom culture ; Venezuela ; Biology (General) ; QH301-705.5
    Thema/Rubrik (Code) 551
    Sprache Englisch
    Erscheinungsdatum 2005-09-01T00:00:00Z
    Verlag Vicerractoría Investigación
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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