Population structure, growth and production of the surf clam Donax hanleyanus (Bivalvia: Donacidae) from northern Argentinean beaches
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...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.690503 2023-05-15T15:42:13+02:00 Population structure, growth and production of the surf clam Donax hanleyanus (Bivalvia: Donacidae) from northern Argentinean beaches Herrmann, Marko 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 2009-04-09 application/zip, 12 datasets https://doi.pangaea.de/10.1594/PANGAEA.690503 https://doi.org/10.1594/PANGAEA.690503 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.690503 https://doi.org/10.1594/PANGAEA.690503 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Herrmann, Marko (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 Argentina Province of Buenos Aires Buenos_Aires Faro_Querandí HAND Mar_de_las_Pampas Sampling by hand Santa_Teresita SeaLevel TGS Tide gauge station Dataset 2009 ftpangaea https://doi.org/10.1594/PANGAEA.690503 2023-01-20T07:31:09Z 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. Dataset Berichte zur Polar- und Meeresforschung Reports on Polar and Marine Research PANGAEA - Data Publisher for Earth & Environmental Science Argentina ENVELOPE(-78.883300,151.000000,51.683300,-37.483333) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Argentina Province of Buenos Aires Buenos_Aires Faro_Querandí HAND Mar_de_las_Pampas Sampling by hand Santa_Teresita SeaLevel TGS Tide gauge station |
spellingShingle |
Argentina Province of Buenos Aires Buenos_Aires Faro_Querandí HAND Mar_de_las_Pampas Sampling by hand Santa_Teresita SeaLevel TGS Tide gauge station Herrmann, Marko Population structure, growth and production of the surf clam Donax hanleyanus (Bivalvia: Donacidae) from northern Argentinean beaches |
topic_facet |
Argentina Province of Buenos Aires Buenos_Aires Faro_Querandí HAND Mar_de_las_Pampas Sampling by hand Santa_Teresita SeaLevel TGS Tide gauge station |
description |
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. |
format |
Dataset |
author |
Herrmann, Marko |
author_facet |
Herrmann, Marko |
author_sort |
Herrmann, Marko |
title |
Population structure, growth and production of the surf clam Donax hanleyanus (Bivalvia: Donacidae) from northern Argentinean beaches |
title_short |
Population structure, growth and production of the surf clam Donax hanleyanus (Bivalvia: Donacidae) from northern Argentinean beaches |
title_full |
Population structure, growth and production of the surf clam Donax hanleyanus (Bivalvia: Donacidae) from northern Argentinean beaches |
title_fullStr |
Population structure, growth and production of the surf clam Donax hanleyanus (Bivalvia: Donacidae) from northern Argentinean beaches |
title_full_unstemmed |
Population structure, growth and production of the surf clam Donax hanleyanus (Bivalvia: Donacidae) from northern Argentinean beaches |
title_sort |
population structure, growth and production of the surf clam donax hanleyanus (bivalvia: donacidae) from northern argentinean beaches |
publisher |
PANGAEA |
publishDate |
2009 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.690503 https://doi.org/10.1594/PANGAEA.690503 |
op_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 |
long_lat |
ENVELOPE(-78.883300,151.000000,51.683300,-37.483333) |
geographic |
Argentina |
geographic_facet |
Argentina |
genre |
Berichte zur Polar- und Meeresforschung Reports on Polar and Marine Research |
genre_facet |
Berichte zur Polar- und Meeresforschung Reports on Polar and Marine Research |
op_source |
Supplement to: Herrmann, Marko (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 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.690503 https://doi.org/10.1594/PANGAEA.690503 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.690503 |
_version_ |
1766375191171039232 |