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Herrmann, Marko (2009): Population structure, growth and production of the surf clam Donax hanleyanus (Bivalvia: Donacidae) from northern Argentinean beaches [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.690503, Supplement to: Herrmann, M (2009): Population dynamics of the surf clams Donax hanleyanus and Mesodesma mactroides from open-Atlantic beaches off Argentina (Populationsdynamik der Brandungsmuscheln Donax hanleyanus und Mesodesma mactroides an offenen Atlantikstränden Argentiniens). Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 585, 235 pp, hdl:10013/epic.31939

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Abstract:
The surf clams Mesodesma mactroides Reeve, 1854 and Donax hanleyanus Philippi, 1847 are the two dominating species in macrobenthic communities of sandy beaches off northern Argentina, with the latter now surpassing M. mactroides populations in abundance and biomass. Before stock decimation caused by exploitation (during the 1940s and 1950s) and mass mortality events (1995, 1999 and 2007) M. mactroides was the prominent primary consumer in the intertidal ecosystem and an important economic resource in Argentina. Since D. hanleyanus was not commercially fished and not affected by mass mortality events, it took over as the dominant species, but did never reach the former abundance of M. mactroides. Currently abundance and biomass of both surf clams are a multiple smaller than those of forty years ago, indicating the conservation status of D. hanleyanus and M. mactroides as endangered. Therefore the aim of this study is to analyse the population dynamics (population structure, growth and reproductive biology) of D. hanleyanus and M. mactroides, and to compare the results with historical data in order to detect possible differences within surf clam populations forty years ago and at present.
Coverage:
Median Latitude: -31.180907 * Median Longitude: -48.552042 * South-bound Latitude: -37.483333 * West-bound Longitude: -78.883300 * North-bound Latitude: 51.683300 * East-bound Longitude: 151.000000
Date/Time Start: 2004-12-15T00:00:00 * Date/Time End: 2006-12-15T00:00:00
Event(s):
Buenos_Aires * Latitude: -34.666700 * Longitude: -58.500000 * Date/Time Start: 1905-01-01T00:00:00 * Date/Time End: 1961-12-31T00:00:00 * Campaign: SeaLevel * Method/Device: Tide gauge station (TGS)
Faro_Querandí * Latitude: -37.483333 * Longitude: -57.116667 * Date/Time Start: 2004-12-01T00:00:00 * Date/Time End: 2006-12-31T00:00:00 * Location: Argentina, Province of Buenos Aires * Method/Device: Sampling by hand (HAND)
Mar_de_las_Pampas * Latitude: -37.316667 * Longitude: -56.683333 * Date/Time Start: 2004-12-01T00:00:00 * Date/Time End: 2006-12-31T00:00:00 * Location: Argentina, Province of Buenos Aires * Method/Device: Sampling by hand (HAND)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
12 datasets

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Datasets listed in this publication series

  1. Herrmann, M (2009): Visiting tourists at the coast of the Province of Buenos Aires. https://doi.org/10.1594/PANGAEA.690452
  2. Herrmann, M (2009): Abundance of Donax hanleyanus at station Faro Querandí. https://doi.org/10.1594/PANGAEA.690453
  3. Herrmann, M (2009): Monthly length-frequency data of Donax hanleyanus at station Faro Querandí. https://doi.org/10.1594/PANGAEA.690471
  4. Herrmann, M (2009): Abundance of Donax hanleyanus at station Mar de las Pampas. https://doi.org/10.1594/PANGAEA.690454
  5. Herrmann, M (2009): Monthly length-frequency data of Donax hanleyanus at station Mar de las Pampas. https://doi.org/10.1594/PANGAEA.690472
  6. Herrmann, M (2009): Data from Mesodesma mactroides (Bivalvia: Mesodesmatidae) from northern Argentina. https://doi.org/10.1594/PANGAEA.692165
  7. Herrmann, M (2009): Secondary production and biomass. https://doi.org/10.1594/PANGAEA.690482
  8. Herrmann, M (2009): Mean abundance of Donax hanleyanus and Mesodesma mactroides at station Santa Teresita. https://doi.org/10.1594/PANGAEA.690484
  9. Herrmann, M (2009): Abundance of Donax hanleyanus at station Santa Teresita. https://doi.org/10.1594/PANGAEA.690455
  10. Herrmann, M (2009): Monthly length-frequency data of Donax hanleyanus at station Santa Teresita. https://doi.org/10.1594/PANGAEA.690473
  11. Herrmann, M (2009): Sea surface temperature measured at station Santa Teresita. https://doi.org/10.1594/PANGAEA.690451
  12. Herrmann, M (2009): Data sources of von Bertalanffy growth parameter of several Donax species. https://doi.org/10.1594/PANGAEA.690491