Organismal responses to deteriorating water quality during the historic 2020 red tide off Southern California
| Type | : | ACL |
|---|---|---|
| Nature | : | Production scientifique |
| Au bénéfice du Laboratoire | : | Oui |
| Statut de publication | : | Publié |
| Année de publication | : | 2024 |
| Auteurs (34) | : | SKELTON Zachary,r MCCORMICK Lillian,r KWAN Garfield,t LONTHAIR Joshua NEIRA Carlos CLEMENTS Samantha,m MARTZ Todd,r BRESNAHAN Philip,j SEND U GIDDINGS Sarah,n SEVADJIAN Jeffrey,c JAEGER Stephanie FEIT Adriano FRABLE Benjamin,w ZEROFSKI Phillip,j TORRES Melissa CROOKS Jeffrey,a MCCULLOUGH Justin CARTER M,l TERNON Eva MILLER Luke,p KALBACH Gabriella,m WHEELER Duncan,c ED PARNELL P SWINEY Katherine,m SEIBERT Garrett MINICH Jeremiah,j HYDE John,r HASTINGS Philip,a SMITH J,e KOMOROSKE Lisa,m TRESGUERRES Martin LEVIN Lisa,a WEGNER Nicholas,c |
| Revue scientifique | : | Elementa: Science of the Anthropocene |
| Volume | : | 12 |
| Fascicule | : | 1 |
| Pages | : | |
| DOI | : | 10.1525/elementa.2023.00067 |
| URL | : | https://doi.org/10.1525/elementa.2023.00067 |
| Abstract | : | In April and May of 2020, a large phytoplankton bloom composed primarily of the dinoflagellate Lingulodinium polyedra reached historic levels in geographic expanse, duration, and density along the coast of southern California, United States, and Baja California Norte, Mexico. Here, we report the water quality parameters of dissolved oxygen and pH over the course of the red tide, as measured by multiple sensors deployed in various locations along San Diego County, and document the extent of mass organism mortality using field surveys and community science observations. We found that dissolved oxygen and pH corresponded with bloom dynamics, with extreme hypoxic and hyperoxic conditions occurring at multiple locations along the coast, most notably within select estuaries where dissolved oxygen reached 0 mg L−1 and hypoxia occurred for up to 254 consecutive hours, as well as along the inner shelf of the open coast where dissolved oxygen dropped as low as 0.05 mg L−1. Similarly, pH ranged widely (6.90–8.79) across the bloom over both space and time, largely corresponding with dissolved oxygen level. Extreme changes in dissolved oxygen and pH, in addition to changes to other water parameters that affect organismal health, ultimately led to documented mortalities of thousands of demersal and benthic fishes and invertebrates (primarily within estuarine and inner-shelf environments), and long-term surveys within one lagoon showed protracted changes to benthic infaunal density and species composition. In addition to field observations, we also quantified water quality parameters and organism mortalities from four local aquarium facilities, with varying levels of filtration and artificial oxygenation, and documented the morphological changes in the gills of captive-held Pacific sardine in response to the red tide. We show that multiple factors contributed to organismal stress, with hypoxia likely being the most widespread, but not the only, cause of mortality. |
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| Commentaire | : | - |
| Tags | : | - |
| Fichier attaché | : | - |
| Citation | : |
Skelton ZR, McCormick LR, Kwan GT, Lonthair J, Neira C, Clements SM, Martz TR, Bresnahan PJ, Send U, Giddings SN, Sevadjian JC, Jaeger S, Feit A, Frable BW, Zerofski PJ, Torres M, Crooks JA, McCullough J, Carter ML, Ternon E, Miller LP, Kalbach GM, Wheeler DC, Ed Parnell P, Swiney KM, Seibert G, Minich JJ, Hyde JR, Hastings PA, Smith JE, Komoroske LM, Tresguerres M, Levin LA, Wegner NC (2024) Organismal responses to deteriorating water quality during the historic 2020 red tide off Southern California. Elementa: Science of the Anthropocene 12 | doi: 10.1525/elementa.2023.00067
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