GLORIA

GEOMAR Library Ocean Research Information Access

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 60 (2002), S. 0 
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Logistical ogives gave an estimated LT50 value (i.e. the total length at which 50% individuals are sexually mature) of 635 mm for female and 650 mm for male Sympterygia bonapartii. Mature individuals of both sexes had significantly larger livers than immature ones and females had a significantly heavier liver than males. Clasper elongation was the first step in male maturation, followed by clasper calcification and the development of alar thorns. In mature females, the right ovary was larger than the left, which was apparently due to differences in stroma tissue. Gonadosomatic index and diameter of ovarian follicles of mature females peaked in late spring and was at a minimum from late summer and through the winter. Juvenile S. bonapartii were more abundant near estuarine areas during winter, and adults appeared in estuaries by late spring and summer. Females carrying egg-cases were found near the shore in late spring and egg-cases were found in benthic samples only in shallow waters suggesting that S. bonapartii deposits egg-cases in shallow waters during late spring-summer and that nursery areas are in outer estuarine zones. In the southern part (38°–42° S) of the study area S. bonapartii showed a strong movement to shallow waters in late spring and summer, spreading over the entire coastal area in winter. These movements are discussed in relation to water temperature and trophic interactions.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 2
    facet.materialart.
    Unknown
    In:  EPIC3Archive of fishery and marine research, 48, pp. 295-303
    Publication Date: 2019-07-16
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 3
    facet.materialart.
    Unknown
    Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero
    Publication Date: 2021-05-19
    Description: The bibliography and the registries of fish caught in the Buenos Aires (Argentina) and Uruguay coastal littoral area during 33 research cruises were analyzed to elaborate the first ichthyic inventory of the region. A total of 147 species belonging to 71 families was registered. The figure represents 48% of the specimens reported for the Argentine-Uruguayan Common Fishing Zone and 37% of the marine species mentioned for the SW Atlantic. The list of coastal marine fishes of Uruguay and north of Argentina is the first attempt to provide basic information to evaluate possible temporal changes of the ichthyic composition in the area. The lists or inventories constitute an essential tool for fisheries management, the generation of statistic data and gathering of information useful for resource assessment.
    Description: Se analizó la bibliografía y los registros de peces capturados en el área litoral costera bonaerense (Argentina) y uruguaya durante 33 campañas de investigación para elaborar el primer inventario de peces de la región. Se registró un total de 147 especies pertenecientes a 71 familias que representan el 48% de los peces reportados para la Zona Común de Pesca Argentino-Uruguaya y el 37% de las especies marinas citadas para el Atlántico Sudoccidental. La lista de peces costeros marinos de Uruguay y norte de Argentina es el primer esfuerzo que se realiza para proporcionar información básica que permita evaluar posibles cambios temporales en la composición de la fauna de peces en el área. Dichas listas o inventarios constituyen una herramienta esencial para la administración de pesquerías, la generación de datos estadísticos y recopilación de información útiles para la evaluación de recursos.
    Description: Published
    Description: lista de especies, inventarios, ZEE, zona económica exclusiva, zona litoral, peces marinos, ambiente marino
    Keywords: Inventories ; Marine environment ; Check lists ; Inventories ; Exclusive economic zone ; Littoral zone ; Marine fish ; Marine environment
    Repository Name: AquaDocs
    Type: Journal Contribution
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...