Douglas B. Rasher

Affiliation:

Bigelow Laboratory for Ocean Sciences

Address:

60 Bigelow Drive
East Boothbay, ME
USA 04544

ORCiD:

0000-0002-0212-8070

Activities reported for Douglas B. Rasher:

Program coordination

None

Project coordination

Ocean Acidification: Century Scale Impacts to Ecosystem Structure and Function of Aleutian Kelp Forests (OA Kelp Forest Function)	Contact
RUI: Collaborative Research: Linking physiological thermal thresholds to the distribution of lobster settlers and juveniles (Lobster Thermal Thresholds)	Principal Investigator
Collaborative Research: EAGER: Solving Darwins paradox: combining emerging technologies to quantify energy fluxes on coral reefs (COREEF)	Principal Investigator
Collaborative Research: Revealing the changing trophic niches of large herbivorous fish on modern coral reefs using an interdisciplinary approach (Herbivore Niche)	Lead Principal Investigator

Deployment coordination

None

Datasets

Project: Collaborative Research: Development and application of a method using coralline algae to reconstruct past changes in pH and impacts on calcification

Dataset	Version Date	Current State
Experimental tank parameters throughout the life of Clathromorphum compactum and C. nereostratum calcification experiment from from 2015-2016 (CorallineAlgaePaleo-pH project) Co-Principal Investigator	2022-04-04	Final no updates expected
Clathromorphum compactum and C. nereostratum calcification experiment data involving multiple temperatures and pCO2 levels (CorallineAlgaePaleo-pH) Co-Principal Investigator	2022-04-04	Final no updates expected
Skeletal density for crustose coralline algae reared in natural and experimental temperature and pCO2 conditions Co-Principal Investigator	2021-01-21	Final no updates expected

Project: Ocean Acidification: Century Scale Impacts to Ecosystem Structure and Function of Aleutian Kelp Forests

Dataset	Version Date	Current State
Estimates of island-wide sea otter population density as surveyed with boats circumnavigating nine focal islands within the central and western Aleutian Islands (Alaska) from 1991-2015. Contact	2021-01-26	Final no updates expected
The density (mg CaCO3/cm^3) of the skeleton of Clathromorphum nereostratum, when assessed as function of increasing seawater temperature and pCO2 concentration Co-Principal Investigator	2019-02-13	Final no updates expected
Experimental study to estimate per capita sea urchin (Strongylocentrotus polyacanthus) grazing rates on the alga Clathromorphum nereostratum as a function of seawater temperature and pCO2 concentration Co-Principal Investigator	2019-02-13	Final no updates expected
Laboratory study of estimates of per capita sea urchin grazing rates on Clathromorphum nereostratum, evaluated as a function of sea urchin size Co-Principal Investigator	2019-02-13	Final no updates expected
Historical reconstruction of sea urchin grazing events in Aleutian Island ecosystem from grazing scars, 1965-2004 Co-Principal Investigator	2019-02-13	Final no updates expected
Sea urchin bio-erosion of Clathromorphum nereostratum skeleton at central and western Aleutian Islands, Alaska from visual surveys, July 2014 Co-Principal Investigator	2019-01-30	Final no updates expected
Kelp forest community structure studied with respect to Clathromorphum bioerosion at central and western Aleutian Islands, Alaska from visual surveys, July 2014 Co-Principal Investigator	2019-01-30	Final no updates expected
Sea urchin size and biomass with respect to Clathromorphum bioerosion at central and western Aleutian Islands, Alaska from visual surveys, July 2014 Co-Principal Investigator	2019-01-30	Final no updates expected
Sea urchin density at each site studied with respect to Clathromorphum bioerosion, at central and western Aleutian Islands, Alaska from visual surveys, July 2014 Co-Principal Investigator	2019-01-30	Final no updates expected
Kelp forest community structure at central and western Aleutian Islands, Alaska from visual surveys, July 2014 Co-Principal Investigator	2019-01-30	Final no updates expected
Sea urchin biomass at central and western Aleutian Islands, Alaska from visual surveys, July 2014 Co-Principal Investigator	2019-01-30	Final no updates expected
Sea urchin density at central and western Aleutian Islands, Alaska from visual surveys, July 2014 Co-Principal Investigator	2019-01-30	Final no updates expected

Project: Killer Seaweeds: Allelopathy against Fijian Corals

Dataset	Version Date	Current State
Palatability of Galaxaura extract on Amphiroa to herbivores in the Viti Levu, Fiji from 2011 (Killer Seaweeds project) Student	2014-01-22	Final no updates expected
Palatability of Galaxaura extract on Padina to herbivores from in the Viti Levu, Fiji from 2011 (Killer Seaweeds project) Student	2014-01-22	Final no updates expected
Palatability of Galaxaura & Sargassum to herbivores in the Viti Levu, Fiji from 2011 (Killer Seaweeds project) Student	2014-01-22	Final no updates expected
Porites PSII quantum yield after exposure to Galaxaura thalli in the Viti Levu, Fiji from May 2011 (Killer Seaweeds project) Student	2014-01-22	Final no updates expected
Porites PSII quantum yield after exposure to seaweed extracts in the Viti Levu, Fiji from May 2011 (Killer Seaweeds project) Student	2014-01-22	Final no updates expected
Seaweed growth, palatability, and chemical defense (anti-coral and anti-herbivore) following 8 days of contact with a coral competitor in the Viti Levu, Fiji from May 2011 (Killer Seaweeds project) Student, Contact	2014-01-22	Final no updates expected

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Douglas B. Rasher

Activities reported for Douglas B. Rasher: