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Salt Marsh
   
Reitan marsh restoration, Galveston Bay
Lycium carolinianum
Carolina wolfberry
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Uca spp. (fiddler crab) burrows and discarded pellets of sediment illustrate bioturbation in a salt marsh.
Installing fences for an experiment, Galveston Bay
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Measuring cordgrass in an impacted marsh, Galveston Bay
Littorina littorea (periwinkle) on Spartina alterniflora (smooth cordgrass)
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Mudflats
Egretta thula
Snowy egret
Pachygrapsus crassipes
Lined shore crab
Cerithidea californica
California horn snail
.
Catoptrophorus semipalmatus
Willet
Cyanobacterial mat
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Cerithidea californica
California horn snail
Ulva spp.
Green macroalgae
 
Bird guano enrichment of cyanobacterial mats
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Mangroves
   
 
Rhizophora mangle
Red mangrove
Puerto Rico
  
Avicennia germinans
Black mangrove, dwarf form
Galveston, TX
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Seagrasses
   
 
Surveying fish
Florida Keys
 
Snapper and grunts on a patch reef
Florida Keys
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Nutrient enrichment and herbivore exclusion experiment, Florida Keys
 
Measuring seagrass morphometrics to assess herbivory pressure
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Monitoring an experiment, Florida Keys
 
Hippocampus zosterae (dwarf seahorse) on artificial seagrass in Florida Bay
     
Brackish marsh
    
 
Newly constructed mound planted with Spartina alterniflora
Constructed mound, about one year after planting Spartina alterniflora
     
 
Plugs of planted Spartina alterniflora
  
Herbivory damage from nutria, an introduced mammal
     
 
Spartina alterniflora mound surrounded by Eurasian milfoil (Myriophyllum spicatum), an non-native, invasive aquatic plant
  
Deploying a throw trap to monitor aquatic animal densities
     
 

Federico Alvarez 2009 - Texas A&M University at Galveston - Galveston, Texas 77553