Changes in Seagrass-Associated Fish and Crustacean Communities on Florida Bay Mud Banks: The Effects of Recent Ecosystem Changes?

Matheson, Richard; Camp, David K.; Sogard, Susan M.; Bjorgo, Kimberly A.

doi:10.2307/1353216

Cited by 54 publications

(30 citation statements)

References 15 publications

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“…We suggest this represents a window to the historical coastal fish community and target for these wetlands when restored by CERP. Variation in salinity can be a primary factor in influencing fish distribution in estuarine systems (Day et al, 1989;Dunson & Travis, 1991;Lorenz, 1999) and studies in Florida Bay suggest that salinity plays a role in determining fish distributional patterns in seagrass (Sogard et al, 1987;Matheson et al, 1999) and mangrove habitats (Thayer et al, 1987;Ley et al, 1999;Lorenz, 1999). Browder & Moore (1981) hypothesized that estuarine fauna recruit to their preferred salinity and that some will move with the salinity zone as it changes position within the estuary.…”

Section: Discussionmentioning

confidence: 99%

Subtroprical wetland fish assemblages and changing salinity regimes: Implications for everglades restoration

Lorenz

Serafy

2006

Hydrobiologia

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During the 1960s, water management practices resulted in the conversion of the wetlands that fringe northeastern Florida Bay (USA) from freshwater/oligohaline herbaceous marshes to dwarf red mangrove forests. Coincident with this conversion were several ecological changes to Florida Bay's fauna, including reductions in the abundances of top trophic-level consumers: piscivorous fishes, alligators, crocodiles, and wading birds. Because these taxa rely on a common forage base of small demersal fishes, food stress has been implicated as playing a role in their respective declines. In the present study, we monitored the demersal fishes seasonally at six sites over an 8-year time period. During monitoring, extremely high rainfall conditions occurred over a 3.5-year period leading to salinity regimes that can be viewed as ''windows'' to the area's natural past and future restored states. In this paper, we: (1) examine the changes in fish communities over the 8-year study period and relate them to measured changes in salinity; (2) make comparisons among marine, brackish and freshwater demersal fish communities in terms of species composition, density, and biomass; and (3) discuss several implications of our findings in light of the intended and unintended water management changes that are planned or underway as part of Everglades restoration. Results suggest the reduction in freshwater flow to Florida Bay over the last several decades has reduced demersal fish populations, and thus prey availability for apex consumers in the coastal wetlands compared to the pre-drainage inferred standard. Furthermore, greater discharge of freshwater toward Florida Bay may result in the re-establishment of pre-1960s fauna, including a more robust demersal-fish community that should prompt increases in populations of several important predatory species.

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Section: Discussionmentioning

confidence: 99%

Subtroprical wetland fish assemblages and changing salinity regimes: Implications for everglades restoration

Lorenz

Serafy

2006

Hydrobiologia

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“…Studies have been conducted more commonly to determine seagrass distribution (Iverson and Bittaker, 1986;Hall et al, 1999;Zieman et al, 1999;Fourqurean et al, 2002), biomass and productivity (Dawes et al, 1985;Tomasko and Hall, 1999;Bologna and Haywick, 2002), environmental controlling factors (Livingston et al, 1998;Fletcher and Fletcher, 1995;Erskine and Koch, 2000;Koch and Erskine, 2001;Irlandi et al, 2002), and the diversity of seagrass-dependent flora and fauna (Hall and Bell, 1993;Frankovich and Zieman, 1994;Matheson et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Florida seagrass habitat evaluation: A comparative survey for chemical quality

Lewis

Dantin

Chancy

et al. 2007

Environmental Pollution

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Some anthropogenic contaminants were prevalent in seagrass and their rooted sediments but the biological significance is unknown. AbstractContaminant concentrations were determined for media associated with 13 Florida seagrass beds. Concentrations of 10 trace metals were more commonly detected in surface water, sediment and two seagrass species than PAHs, pesticides and PCBs. Concentrations of copper and arsenic in surface water exceeded Florida aquatic life criteria more frequently than other trace elements. Total organic carbon, mercury, chromium, zinc, total chlordane, total PAHs, total PCBs, DDD and DDE were significantly greater in seagrass-rooted sediments than adjacent non-vegetated sediments. Total DDT, DDD, DDE, total chlordane, arsenic, copper and nickel exceeded proposed sediment quality guidelines at six of 13 grass beds. Pesticides, PAHs, and PCBs were below detection in seagrass tissues. Mercury, cadmium, nickel, lead and silver were detected in 50% or more of the tissues for Thalassia testudinum (turtle grass) and Halodule wrightii (shoal grass). Spatial, interspecific and tissue differences were usually an order of magnitude or less.

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“…En escalas de mediano plazo existen evidencias de esa relación y generalmente se refieren al efecto de fenómenos climáticos como El Niño (López-Martínez 2000). En el caso de la población de F. duorarum al sur de la Península de Florida, al norte del Golfo de México, la disminución en las capturas desde los años 1960 hasta inicios de los 90's (Sheridan 1996, Ehrhardt y Legault 1999, se relacionó con la calidad del hábitat en los estuarios y con cambios en la estructura y función del ecosistema en un periodo de décadas (Fourqurean y Robblee 1999, Hall et al 1999, Matheson et al 1999, Thayer et al 1999.…”

Section: Discussionunclassified

Efecto de la temperatura superficial y la salinidad en el reclutamiento del camarón rosado Farfantepenaeus duorarum (Decapoda: Penaeidae), en la Sonda de Campeche, Golfo de México

Rodríguez¹,

Sánchez²,

Belda³

2006

RBT

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Changes in Seagrass-Associated Fish and Crustacean Communities on Florida Bay Mud Banks: The Effects of Recent Ecosystem Changes?

Cited by 54 publications

References 15 publications

Subtroprical wetland fish assemblages and changing salinity regimes: Implications for everglades restoration

Subtroprical wetland fish assemblages and changing salinity regimes: Implications for everglades restoration

Florida seagrass habitat evaluation: A comparative survey for chemical quality

Efecto de la temperatura superficial y la salinidad en el reclutamiento del camarón rosado Farfantepenaeus duorarum (Decapoda: Penaeidae), en la Sonda de Campeche, Golfo de México

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