Instrument: Refractometer

Acronym: Refractometer
External Identifier:

Description

A refractometer is a laboratory or field device for the measurement of an index of refraction (refractometry). The index of refraction is calculated from Snell's law and can be calculated from the composition of the material using the Gladstone-Dale relation.

In optics the refractive index (or index of refraction) n of a substance (optical medium) is a dimensionless number that describes how light, or any other radiation, propagates through that medium.


Dataset NamePI-Supplied DescriptionPI-Supplied Name
Squidpop consumption probability within Artificial Seagrass Units (ASU) in Back Sound, NC from October to November 2018VeeGee STX-3
Epibenthic faunal densities sampled from within Artificial Seagrass Units (ASU) in Back Sound, NC from June to October 2018VeeGee STX-3
Geochemical measurements of CTD and Alvin Niskin samples collected in the Gulf of California on RV/Atlantis AT42-05 Alvin dives, Nov. 2018To measure salinity Fisher refractometer
Hatching count and survival statistics of Atlantic silverside (Menida menidia) larvae reared under ambient or hypoxia/acidification treatments during cross-generational laboratory experiments in 2022
Morphological measurements of Atlantic silverside (Menidia menidia) larvae reared under ambient or hypoxia/acidification treatments during cross-generational laboratory experiments in 2022
Relative crab mortality (binomial) data from a tethering experiment in summer 2017 in Back Sound, North CarolinaHand-held refractometer-VEE GEE STX-3 Salinity 0-100%o VEE GEE STX-3
Bugula neritina host genotype and symbiotic status of colonies along the East Coast, USA, ranging from latitudes 38.61283 to 29.753272
Data on chorion thickness from embryos studied in an experiment on CO2 sensitivity of Northern sand lance (Ammodytes dubius) embryos conducted in 2018refractometer
CO2 × temperature specific early life survival and growth of Menidia menidia assessed by 5 factorial experimentsSalinity was measured at the time of sampling using a refractometer. refractometer
Experimental data: El Nino virus abundance from Southern California and Rhode Island coast from 2007-2013 (El Nino and virus diversity project, Cyanophage Evolutionary Ecology project)hand held, not highly accurate. Refractometer
Eelgrass disease metrics from ecological field surveys along the eastern Pacific coast in June through August of 2019, 2020, and 2021.Salinity was measured at the time of sampling using a refractometer. refractometer (?? need info on make/model from PIs)
Eelgrass shoot density measurements taken during ecological field surveys along the eastern Pacific coast in June through August of 2019, 2020, and 2021. Salinity was measured at the time of sampling using a refractometer. refractometer
Eelgrass shoot metrics from ecological field surveys in six regions along the eastern Pacific coast in June through August of 2019, 2020, and 2021. Salinity was measured at the time of sampling using a refractometer. refractometer (?? need info on make/model from PIs)
Pool-seq data from laboratory selection lines of copepods collected from Kiel Canal in Germany in 2017 and 2018Hand-held refractometer
Data from the fecundity trial in a study of CO2 and temperature-specific reproductive traits in Menidia menidiarefractometer
Egg measurements from the fecundity trial in a study of CO2 and temperature-specific reproductive traits in Menidia menidiarefractometer
Geochemical measurements of CTD and Alvin Niskin samples collected in the Gulf of California during R/V Falkor cruise FK190211 in 2019Fisher refractometer
Summary geochemistry and radiotracer rates for 30 marine sediment cores covering eight sites and four geochemical regimesCole-Parmer RSA-BR60
Hatch data from experiments on CO2 sensitivity of Northern sand lance (Ammodytes dubius) embryos conducted in 2018 and 2020refractometer
Intra-annual salinity and temperature variation in four regions across latitude (Competition and Predation across Latitude)Salinity measurements were recorded biweekly from four standardized locations at each site and averaged. Salinity Handheld Refractometer
Distribution of benthic invertebrates along the East Coast, USA, ranging from latitudes 38.61283 to 29.753272.
Morphometric data from experiments on CO2 sensitivity of Northern sand lance (Ammodytes dubius) embryos conducted in 2018 and 2020refractometer
Weekly surface water quality measurements in Narragansett Bay from 1959-2019Surface water salinity was determined using a calibrated refractometer (American Optical) from 1959 to 2008. Calibrated refractometer (American Optical)
Water characteristics measured in Narragansett Bay over two years, from March 2021 to March 2023Used to measure salinity; Portable Refractometer: Model RHS-10ATC. Portable Refractometer
Environmental and physical data associated with ocean acidification microbe adaptation from 2012-2014Used to sample salinity Atago PAL-06S Digital Refractometer
Calcification and linear extension rates for Oculina arbuscula corals grown under different pCO2 levels; from the Cohen lab at WHOI in Woods Hole, MA (OA Nutrition and Coral Calcification project)Salinity was determined using an Autosal conductivity meter in the WHOI Hydrographic Laboratory and/or using a refractometer calibrated with simultaneous measurements of conductivity (precision = +/- 0.3%; accuracy = +/- 0.4%). Refractometer
Physical data (sal, temp, wind, wave height) collected from January-March of 2014, 2015, and 2016 at the OIMB pier located in the Coos Bay entrance of the Oregon Coastrefractometer
Phytoplankton abudance and physical environmental data from niskin bottles off the coast of Juneau, Alaska from 2015-2016 (SEAK-AHAB project)Measured sea surface salinity Refractometer
Phytoplankton abudance and physical environmental data from off the coast of Juneau, Alaska from 2015-2016 (SEAK-AHAB project)Measured sea surface salinity Refractometer
Pooled sequencing data of field-collected Eurytemora affinis copepods from nine locations in North America collected October 2012 to March 2014Salinity measurements from each sampling site were collected using a handheld refractometer.  handheld refractometer
O2 consumption of pteropods held for 1-14 days in three CO2 treatments with pteropods collected with a Reeve net during R/V Tioga cruises in the Gulf of Maine from 2013 to 2014Hannah refractometer.
Shell quality of pteropods held for 1-14 days in three CO2 treatments with pteropods collected with a Reeve net during R/V Tioga cruises in the Gulf of Maine from 2014 to 2015Hannah refractometer
Temperature, salinity, and fluorescence of seawater collected from Alamitos Bay, Long Beach, CA during 2017-2019refractometer
Salinity measurements from Niskin bottle samples at the PICO time-series station (34.7181 deg N, 76.6707 deg W) from 2010-2012 (PICO project)Salinity was measured using a calibrated handheld digital refractometer (Atago PAL-06S) or using a refractometer (Vista A366ATC). Refractometer
Temperature and salinity from 4 field sites in Bogue Sound, North Carolina from 2014 to 2015.Used to measure salinity Refractometer
Pore water and solid phase iron geochemical data from a coastal Maine intertidal mudflat from November 2015 to November 2016Handheld salinity refractometer with temperature compensation (Marine Depot)
Southern California sites surveyed for Ficopomatus enigmaticus in Orange and Los Angeles Counties, California, USA, from August to October 2015At each site, salinity was measured with a calibrated refractometer. refractometer
Data from the spawning trial in a study of CO2 and temperature-specific reproductive traits in Menidia menidiarefractometer
Data on egg production resulting from the spawning trial in a study of CO2 and temperature-specific reproductive traits in Menidia menidiarefractometer
Relative depredation (binomial) data from a squidpop tethering experiment in summer 2017 in Back Sound, North CarolinaHand-held refractometer-VEE GEE STX-3 Salinity 0-100%o VEE GEE STX-3
Time series observations: hydrography, nutrients, and microbial, phytoplankton and zooplankton communities from the Skidaway River Estuary on the southeastern Atlantic coast of Georgia from 1986-2011 (SRiMP project)American Optical Refractometer; +- 0.2 psu or ppt American Optical Refractometer
Data on hatching frequency and success from an experiment on CO2 sensitivity of Northern sand lance (Ammodytes dubius) embryos conducted in 2020refractometer
Data on unhatched embryos from an experiment on CO2 sensitivity of Northern sand lance (Ammodytes dubius) embryos conducted in 2018refractometer
Temperature and salinity measured at the UConn dock in Groton, CT, USA, associated with DNA collectiontemperature-corrected salinity refractometer
Abiotic and biotic data from Zostera Experimental Network (ZEN) 2014 surveys (ZEN 2 project)Used to measure salinity
Biomass and diversity measurements in eelgrass (Zostera marina) habitat from 16 sites across the Northern Hemisphere, 2011 (ZEN project)Used to measure salinity