Relationship of Eastern Gulf of Mexico Reef-Fish Communities to the Species Equilibrium Theory of Insular Biogeography

Smith, Greg

doi:10.2307/3038151

Cited by 34 publications

(46 citation statements)

References 29 publications

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“…Our study differed from those of Smith (1975Smith ( , 1979 and Warlen et al (1998) in a number of ways. Smith (1975Smith ( , 1979 studied the communities on patch reefs in the Gulf of Mexico, offshore from our study area.…”

Section: Discussioncontrasting

confidence: 91%

“…Smith (1975Smith ( , 1979 studied the communities on patch reefs in the Gulf of Mexico, offshore from our study area. He recorded the presence and absence of fish species at each study site using visual (SCUBA) surveys, but did not quantify density or abundance.…”

Section: Discussionmentioning

confidence: 99%

“…K. brevis produces brevetoxins (PbTx), a suite of neurotoxins that cause acute neurological symptoms including death in fishes (Baden & Mende 1982, reviewed by Landsberg 2002, Naar et al 2007. K. brevis blooms can also increase biochemical oxygen demand, resulting in hypoxia or anoxia (Smith 1975, 1979, Hu et al 2006. Severe K. brevis red tides, therefore, result in episodes of high mortality among vertebrates, most notably fishes (Gunter et al 1948, Smith 1975, 1979, reviewed by Landsberg 2002.…”

Section: Introductionmentioning

confidence: 99%

“…K. brevis blooms can also increase biochemical oxygen demand, resulting in hypoxia or anoxia (Smith 1975, 1979, Hu et al 2006. Severe K. brevis red tides, therefore, result in episodes of high mortality among vertebrates, most notably fishes (Gunter et al 1948, Smith 1975, 1979, reviewed by Landsberg 2002.…”

Section: Introductionmentioning

confidence: 99%

“…Recruitment during the red-tide event was not particularly low, although 2 of the 9 species investigated experienced their 8 yr minima during this period (Warlen et al 1998). Smith (1975Smith ( , 1979 documented the extirpation and subsequent recolonization of the ecological communities on offshore patch reefs in the Gulf of Mexico off central Florida following a severe red-tide event, and hypothesized that red tide was one of the major factors regulating the structure of reef communities in the Gulf. To our knowledge, the Smith papers (1975Smith papers ( , 1979 are the only published works on the ecological effects of Florida red tides on post-larval fish communities.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Karenia brevis harmful algal blooms on nearshore fish communities in southwest Florida

Gannon¹,

McCabe²,

Camilleri³

et al. 2009

Mar. Ecol. Prog. Ser.

100

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Blooms of the toxic alga Karenia brevis, commonly referred to as 'Florida red tides,' occur along Florida's west coast on a near-annual basis, causing massive fish kills. However, few quantitative data on the ecological effects of red tides on fish communities exist. We surveyed fish communities in 5 habitats within Sarasota Bay and the adjacent Gulf of Mexico during the summers of 2004 to 2007 using a purse seine. We collected contemporaneous data on fish densities, fish species composition, K. brevis cell densities, water temperature, salinity, dissolved oxygen, and turbidity. Fish density (catch per unit effort [CPUE]) and species richness were significantly lower in all habitats during red tides. Shannon-Wiener diversity indices were significantly lower in 4 of 5 habitats during red tides. Classification and regression tree analysis showed significant negative relationships between K. brevis density and non-clupeid CPUE, and between K. brevis density and species richness. Fish community structure differed significantly between red tide and non-red tide conditions. Canonical correspondence analysis showed that of all the environmental factors investigated, K. brevis density had the greatest influence on community structure. Most trophic guilds were negatively associated with K. brevis density, whereas the guild that included clupeids was positively associated with K. brevis density. Florida's fish kill database showed that 96% of local fish kills during 2003 to 2007 occurred during red tides. We concluded that red tides caused the observed changes in fish abundance and community structure. Harmful algal blooms occur throughout the world and may play an important, yet little understood, role in regulating fish communities.

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