Isotopic evidence for dead fish maintenance of Florida red tides, with implications for coastal fisheries over both source regions of the West Florida shelf and within downstream waters of the South Atlantic Bight

Walsh, John J.; Weisberg, Robert H.; Lenes, Jason M.; Chen, F.R.; Dieterle, Dwight A.; Zheng, Lianyuan; Carder, Kendall L.; Vargo, Gabriel A.; Havens, Julie Ann; Peebles, Ernst B.; Hollander, David J.; He, Ruoying; Heil, Cynthia A.; Mahmoudi, Behzad; Landsberg, Jan H.

doi:10.1016/j.pocean.2008.12.005

Cited by 48 publications

(41 citation statements)

References 85 publications

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“…The production of bioactive or toxic products by algae during HABs, including Karenia brevis, is considered primarily a defense strategy, with allelopathy a common interspecific strategy, particularly in harmful phytoplankton species, for avoiding predation (Kubanek et al 2005, Prince et al 2008. It has also been postulated that the production of an ichthyotoxin by K. brevis is an opportunistic strategy used to maintain the bloom because of increased nutrient availability from recycling of decomposing fish (Walsh et al 2009). Some HABs, e.g.…”

Section: Discussionmentioning

confidence: 99%

Effects of Karenia brevis red tide on the spatial distribution of spawning aggregations of sand seatrout Cynoscion arenarius in Tampa Bay, Florida

Walters¹,

Lowerre‐Barbieri²,

Tustison³

et al. 2013

Mar. Ecol. Prog. Ser.

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A passive acoustic survey using a random stratified design detected spawning aggregations of sand seatrout Cynoscion arenarius over 2 sequential spawning seasons (2004 and 2005) in Tampa Bay, Florida. In 2005, an intense Karenia brevis red tide at ichthyotoxic concentrations entered Tampa Bay 3 mo after the spawning season began. The bloom persisted through the end of the spawning season and was temporally associated with significant changes in the spatial distribution of spawning aggregations. Red tide was most prevalent and concentrated within the lower portion of Tampa Bay and extended to a lesser degree into the middle bay, but remained absent from the upper bay. While the percentage of sand seatrout aggregations in the middle bay zone did not significantly change from 2004 to 2005, aggregations in the non-impacted area of the upper bay increased, and the red tide-exposed lower bay experienced a significant and pronounced decline. These significant bay-wide changes in the sand seatrout spawning population coincided with the red tide event, most notably the considerable decline in the lower bay, but the broad spatial distribution of the aggregations in concert with certain reproductive and life history characteristics may buffer the population from long-term effects. Typically, it is difficult to assess the effect of disturbances on marine fish populations due to complexities in measuring the extent of the perturbation and the magnitude of the loss to the population. Our spatially explicit sampling design further enabled us to demonstrate the widespread effects of red tide on fisheries and provides an important tool for assessing the extent of loss to a spawning fish population.

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Section: Discussionmentioning

confidence: 99%

Effects of Karenia brevis red tide on the spatial distribution of spawning aggregations of sand seatrout Cynoscion arenarius in Tampa Bay, Florida

Walters¹,

Lowerre‐Barbieri²,

Tustison³

et al. 2013

Mar. Ecol. Prog. Ser.

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show abstract

“…The respective recruitment periods of some of the other fishes did not correspond with the major red tide event. The importance of clupeid fishes such as Spanish sardines, thread herrings, and Atlantic shad in the understanding of fish kills has been recognized by Walsh et al (2009).…”

Section: Red Tides Karenia Brevismentioning

confidence: 99%

“…The Center for Prediction of Red Tides (CPR) in Florida (Walsh et al 2009) has developed models to assess and predict red tides based on nitrogen isotope ratios in portions of the food web that maintain K. brevis. The food web associated with K. brevis has shown to be extremely complicated and differs somewhat in different areas based on currents and winds.…”

Section: Red Tides Karenia Brevismentioning

confidence: 99%

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Diseases and Mortalities of Fishes and Other Animals in The Gulf of Mexico

Overstreet

Hawkins

2017

Habitats and Biota of the Gulf of Mexico: Before the Deepwater Horizon Oil Spill

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“…32 Historical documentation suggested that K. brevis was also a part of the natural floral community of the Gulf of Mexico. Historical records reported observations of K. brevis blooms in the Gulf of Mexico before the 1950s 33,34 and it was still unclear if K. brevis blooms have increased in frequency or biomass. 35 In addition, it was possible that not all K. brevis blooms were detected and flagged.…”

Section: Karenia Brevis Bloom Eventsmentioning

confidence: 99%

Approach to developing numeric water quality criteria for coastal waters: transition from SeaWiFS to MODIS and MERIS satellites

Schaeffer

Hagy

Stumpf

2013

J. Appl. Remote Sens

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Abstract. States can adopt numeric water quality criteria into their water quality standards to protect the designated uses of their coastal waters from eutrophication impacts. The first objective of this study was to provide an approach for developing numeric water quality criteria for coastal waters based on archived SeaWiFS ocean color satellite data. The second objective was to develop an approach for transferring water quality criteria assessments to newer ocean color satellites, such as MODIS and MERIS. Measures of SeaWiFS, MODIS, and MERIS chlorophyll-a (Chl RS -a, mgm −3 ) were resolved across Florida's coastal waters between 1998 and 2009. Annual geometric means of SeaWiFS Chl RS -a were evaluated to determine a quantitative reference baseline from the 90th percentile of the annual geometric means. A method for transferring to multiple ocean color sensors was implemented with SeaWiFS as the reference instrument. The Chl RS -a annual geometric means for each coastal segment from MODIS and MERIS were regressed against SeaWiFS to provide a similar response among all three satellites. Standardization factors for each coastal segment were calculated based on the differences between 90th percentile from SeaWiFS to MODIS and SeaWiFS to MERIS. This transfer approach was allowed for future assessments, typically with <7% difference in the calculated criteria.

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Isotopic evidence for dead fish maintenance of Florida red tides, with implications for coastal fisheries over both source regions of the West Florida shelf and within downstream waters of the South Atlantic Bight

Cited by 48 publications

References 85 publications

Effects of Karenia brevis red tide on the spatial distribution of spawning aggregations of sand seatrout Cynoscion arenarius in Tampa Bay, Florida

Effects of Karenia brevis red tide on the spatial distribution of spawning aggregations of sand seatrout Cynoscion arenarius in Tampa Bay, Florida

Diseases and Mortalities of Fishes and Other Animals in The Gulf of Mexico

Approach to developing numeric water quality criteria for coastal waters: transition from SeaWiFS to MODIS and MERIS satellites

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