Analysis Service / Contact Information

Description of Service

• Carbon and nitrogen isotopic composition of solid samples (sediment, soil, nutrient filters, tissues). EA-IRMS.
• Carbon and oxygen isotopic composition of carbonates. Gasbench-IRMS.
• Oxygen and hydrogen isotopic composition of water. Gasbench-IRMS.
• Carbon isotopic composition of dissolved inorganic carbon. Gasbench-IRMS.
• Compound specific carbon and nitrogen isotopic compositions of fatty acids, alkanes, alcohols, amino acids. GC-C-IRMS.

Elemental and Nutrient Analysis
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(361) 749-3099

• Carbon, hydrogen and nitrogen abundance measurements in solid samples (sediment, soil, nutrient filters, tissues). 
• Total organic carbon and total dissolved nitrogen abundance measurements in aqueous samples (seawater, river water, groundwater).
• Quantify nutrients (ammonium, nitrate, silicate, phosphate) in aqueous samples (seawater, river water, groundwater).

LC-Ion-Mobility-Quadrupole-Time-of-Flight-Mass-Spectrometry
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(361) 749-3099

• Provide accurate mass detection, molecular discovery and quantification of analytes, including but not limited to, proteins, metabolites, lipids and carbohydrates. Agilent 6560 LC/MS IM-QTOF.

• Current meter measurements: acquisition and reduction only
• Current meter measurements: acquisition, reduction and analysis
• Tides: acquisition and reduction of data from instrumentation
• Conductivity/Temperature/Depth: reduction and analysis of CTD profiler data
• Weather: acquisition and reduction only of data from meteorological system instrumentation
• Data for DODS System

• Segmented Flow Analysis: Inorganic nutrients (no sample collection included)
• Segmented Flow Analysis: Organic nutrients and Urea (no sample collection included)
• Flow injection Analysis: Sample Collection
• Manual methods: Chlorophyll a by fluorometry, non-acidification technique
• Manual methods: Chlorophyll a, b, c by dual beam spectrophotometry
• Manual methods: Sample Collection
• Microalgal Taxonomy: Inverted Microscopy
• Pam Fluorometry
• Particulate Phosphate Measurement

• Photosynthetic Chamber: Spectrometric analysis - Class I Sediment Ammonium
• Photosynthetic Chamber: Spectrometric analysis - Class II Nitrate + Nitrite
• Tissue Constituent Analysis: Class I - Red Algae Chlorophyll a and carotenoids
• Tissue Constituent Analysis: Class II - Green Algae Chlorophyll a and b
• Tissue Constituent Analysis: Class III - Brown Algae Chlorophyll a only with wavelength scan
• Tissue Constituent Analysis: Class III - Brown Algae Chlorophyll a only without wavelength scan
• Tissue Constituent Analysis: Class III - Brown Algae Chlorophyll a, c, carotenoids, fucoxanthin
• Tissue Constituent Analysis: Class IV-Photo plankton Chlorophyll a, spectrophotometric or fluorometric
• Tissue Constituent Analysis: Class V - Vascular Plants Chlorophyll a and b
• Tissue Constituent Analysis: Class V - Vascular Plants Soluble carbohydrates
• Tissue Constituent Analysis: Class V - Vascular Plants Biomass, density and percent coverage
• Tissue Constituent Analysis: Class V - Vascular Plants Sediment grain size
• Par Measurement:L1-1000 Datalogger measurement of photo syntheitcally active radiation (PAR) 

• Benthic Sediment Sample Collection: Smith McIntyre grab & hydrographic data
• Benthic Sediment Sample Collection: Three cores by diver and hydrographic data
• Benthic Invertebrate Sample Analysis: Smith McIntyre Grab (0.1 m2)
• Benthic Invertebrate Sample Analysis: Core Sample (6.7 cm I.D., 35.3 cm2, 10 cm depth, mud or sand)
• Benthic Invertebrate Sample Analysis:  Core Sample (6.7 cm I.D., 35.3 cm2, 10 cm depth, seagrass)
• Sediment Analysis: Sediment Sand-Silt-Clay Content
• Sediment Analysis: Sediment Grain size distribution
• Sediment Analysis: Carbon and Nitrogen
• Sediment Analysis: Total Organic Carbon, Carbon and Nitrogen, acidified sample
• Epibenthos/Necktonic Analysis: Trawl
• Chlorophyll Analysis: Chlorophyll a by fluorometry, non-acidification technique

• Steroid Hormones by RIA-Radioimmunoassy of Estradiol
• Steroid Hormones by RIA-Secretory capacity of gonads
• Vitellogenin Measurements-By RIA for Sciaenid Species
• Vitellogenin Measurements-By Measurement of Protein-bound Phosphorus for Other Species
• Gonadotropic & Thyroid Hormones by RIA
• Hormonal Control of Fish-egg Maturation
• Hormonal Induction of Spawning Testing
• Estogen Receptor Assay
• Secretory Capacity of Pituitary and Response to LHRH
• Estrogen Receptor Competition Assay with PCB and DDTs
• Assessment of Spawning Readiness

• Measurement of Zooplankton Grazing: Gut Pigment Technique
• Enumeration of Plankton Samples: Phytoplankton &/or Microzooplankton Samples, Utermohl's Technique
• Enumeration of Zooplankton Samples
• Fluorometric analysis of chlorophyll a
• Cuturing of marine protozoa
• Collection of wild zooplankton

Fish Ecology and Behavior
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(361) 749-6775

• Fish Behavior: Fish Rearing-Laboratory Hatchery
• Fish Behavior: Video Tape Recording and Analysis
• Fish Behavior: Video Measurement
• Fish Behavior: Quantitative/Statistical Analysis