Impact of two decades of shellfish farming on phytoplankton biomass, abundance and productivity of a coastal lagoon influenced by upwelling
Long-term impact of the Pacific oyster Crassostrea gigas farms on the phytoplankton biomass as chlorophyll a concentration (chl-a), abundance and productivity (PP) of the western arm of Bahía San Quintín (Falsa Bay), a coastal lagoon influenced by the California Current coastal upwelling, was evalua...
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Universidad Autónoma Metropolitana
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fthidrobiologica:oai:ojs.hidrobiologica.izt.uam.mx:article/996 2023-05-15T15:58:15+02:00 Impact of two decades of shellfish farming on phytoplankton biomass, abundance and productivity of a coastal lagoon influenced by upwelling Montes-Hugo, Martín A. Alvarez-Borrego, Saúl 2017-01-15 application/pdf https://hidrobiologica.izt.uam.mx/index.php/revHidro/article/view/996 spa spa Universidad Autónoma Metropolitana https://hidrobiologica.izt.uam.mx/index.php/revHidro/article/view/996/582 https://hidrobiologica.izt.uam.mx/index.php/revHidro/article/view/996 Derechos de autor 2017 HIDROBIOLÓGICA HIDROBIOLÓGICA; Vol. 17 Núm. 3 (2007); 213-224 2448-7333 0188-8897 Shellfish farming Crassostrea gigas phytoplankton California Current coastal lagoon info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2017 fthidrobiologica 2022-06-01T09:50:12Z Long-term impact of the Pacific oyster Crassostrea gigas farms on the phytoplankton biomass as chlorophyll a concentration (chl-a), abundance and productivity (PP) of the western arm of Bahía San Quintín (Falsa Bay), a coastal lagoon influenced by the California Current coastal upwelling, was evaluated after two decades of commercial cultures. High-resolution time series (on an hourly basis) of these variables were generated in 1999 and 2000, for locations with and without oyster cultures in Falsa Bay. Representative averages of these data were compared with data reported for 1979, when the commercial cultures were just starting. Also, data of 1979 and recent data were used separately to explore possible short-term (hourly) effects of oysters on the phytoplankton variables. The available data are scarce and do not support the hypothesis of diminished phytoplankton biomass, abundance and PP due to the oyster cultures. In general, there were no statistically significant differences between the averages of chl-a (2.5 mg m-3 ), microphytoplankton abundance (from 42·103 to 194·103 cells L-1, depending upon the location) and PP (12 mgC m-3 h-1 ) when comparing 1979, and 1999 - 2000 data. This was possibly due to the relatively low residence time of Falsa Bay waters (~8 days) and relatively low oyster density (a total of ~900 tons, with an estimated maximum carrying capacity from ~2,000 to 6,000 tons for this arm of the bay). Article in Journal/Newspaper Crassostrea gigas Pacific oyster Hidrobiológica (E-Journal) Pacific Falsa ENVELOPE(-60.366,-60.366,-62.716,-62.716) Western Arm ENVELOPE(-55.948,-55.948,49.683,49.683) |
institution |
Open Polar |
collection |
Hidrobiológica (E-Journal) |
op_collection_id |
fthidrobiologica |
language |
Spanish |
topic |
Shellfish farming Crassostrea gigas phytoplankton California Current coastal lagoon |
spellingShingle |
Shellfish farming Crassostrea gigas phytoplankton California Current coastal lagoon Montes-Hugo, Martín A. Alvarez-Borrego, Saúl Impact of two decades of shellfish farming on phytoplankton biomass, abundance and productivity of a coastal lagoon influenced by upwelling |
topic_facet |
Shellfish farming Crassostrea gigas phytoplankton California Current coastal lagoon |
description |
Long-term impact of the Pacific oyster Crassostrea gigas farms on the phytoplankton biomass as chlorophyll a concentration (chl-a), abundance and productivity (PP) of the western arm of Bahía San Quintín (Falsa Bay), a coastal lagoon influenced by the California Current coastal upwelling, was evaluated after two decades of commercial cultures. High-resolution time series (on an hourly basis) of these variables were generated in 1999 and 2000, for locations with and without oyster cultures in Falsa Bay. Representative averages of these data were compared with data reported for 1979, when the commercial cultures were just starting. Also, data of 1979 and recent data were used separately to explore possible short-term (hourly) effects of oysters on the phytoplankton variables. The available data are scarce and do not support the hypothesis of diminished phytoplankton biomass, abundance and PP due to the oyster cultures. In general, there were no statistically significant differences between the averages of chl-a (2.5 mg m-3 ), microphytoplankton abundance (from 42·103 to 194·103 cells L-1, depending upon the location) and PP (12 mgC m-3 h-1 ) when comparing 1979, and 1999 - 2000 data. This was possibly due to the relatively low residence time of Falsa Bay waters (~8 days) and relatively low oyster density (a total of ~900 tons, with an estimated maximum carrying capacity from ~2,000 to 6,000 tons for this arm of the bay). |
format |
Article in Journal/Newspaper |
author |
Montes-Hugo, Martín A. Alvarez-Borrego, Saúl |
author_facet |
Montes-Hugo, Martín A. Alvarez-Borrego, Saúl |
author_sort |
Montes-Hugo, Martín A. |
title |
Impact of two decades of shellfish farming on phytoplankton biomass, abundance and productivity of a coastal lagoon influenced by upwelling |
title_short |
Impact of two decades of shellfish farming on phytoplankton biomass, abundance and productivity of a coastal lagoon influenced by upwelling |
title_full |
Impact of two decades of shellfish farming on phytoplankton biomass, abundance and productivity of a coastal lagoon influenced by upwelling |
title_fullStr |
Impact of two decades of shellfish farming on phytoplankton biomass, abundance and productivity of a coastal lagoon influenced by upwelling |
title_full_unstemmed |
Impact of two decades of shellfish farming on phytoplankton biomass, abundance and productivity of a coastal lagoon influenced by upwelling |
title_sort |
impact of two decades of shellfish farming on phytoplankton biomass, abundance and productivity of a coastal lagoon influenced by upwelling |
publisher |
Universidad Autónoma Metropolitana |
publishDate |
2017 |
url |
https://hidrobiologica.izt.uam.mx/index.php/revHidro/article/view/996 |
long_lat |
ENVELOPE(-60.366,-60.366,-62.716,-62.716) ENVELOPE(-55.948,-55.948,49.683,49.683) |
geographic |
Pacific Falsa Western Arm |
geographic_facet |
Pacific Falsa Western Arm |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_source |
HIDROBIOLÓGICA; Vol. 17 Núm. 3 (2007); 213-224 2448-7333 0188-8897 |
op_relation |
https://hidrobiologica.izt.uam.mx/index.php/revHidro/article/view/996/582 https://hidrobiologica.izt.uam.mx/index.php/revHidro/article/view/996 |
op_rights |
Derechos de autor 2017 HIDROBIOLÓGICA |
_version_ |
1766393979929100288 |