Time-series data of water level, water temperature, and salinity were collected at 10 locations along west Hawaii Island between 2010 and 2011 in nearshore coral reef settings. Conductivity-temperature-depth sensors were attached to fossil limestone, rock, or dead coral within otherwise healthy coral reef settings spanning water depths of 8 to 23 ft. Continuous measurements were made every 10 or 20 minutes.

Observations of coral species and size were documented by scuba divers along pre-determined transects and are presented here in comma-separated format.

Coral Point Count with Excel extensions (CPCe; Kohler and Gill, 2006) was used to help calculate percent of coral cover or other benthic substrates from a randomly selected subset of seafloor photographs collected on the west Hawaii Island coast.

Conductivity-Temperature-Depth (CTD) profile data were collected along transects across study areas of west and east Hawaii Island between 2010 and 2014. Measurements were made over a range of tide and weather conditions and help characterize the spatial extent and variability in estuarine conditions across the reef when grouped by 1 to 2-hour survey period or by season. Sites of cold and warm groundwater discharge along east Hawaii were characterized for comparison.

Observations of bleached coral were documented by scuba divers along pre-determined transects and are presented here in comma-separated format. Included in the table are coral species observed, colony size, size of bleached area on colony, and seawater temperature.

Time-series data of water temperature were collected at 33 locations along the west coast of the Island of Hawaii, including within Kaloko-Honokohau National Historical Park (KAHO), and Puu o Honaunau National Historical Park (PUHO) between 2010 and 2013 in nearshore coral reef and anchialine pool settings. Temperature sensors were attached to fossil limestone, rock or dead coral within otherwise healthy coral reef settings spanning water depths of 0.1 to 8.84 m (0.3 to 29.0 ft). Continuous measurements were made every 10 or 20 minutes. Due to the large amount of data, the dataset has been split into three files. WaterTempTimeSeries_KAHO-KC.csv includes data from nearshore coral reef locations within Kaloko Bay, which lies within the KAHO boundaries; WaterTempTimeSeries_KAHO.csv includes data from nearshore reef locations and two anchialine pools within the remainder of KAHO; WaterTempTimeSeries_westHawaii.csv includes data from nearshore coral reef locations along west Hawaii coastline, outside of the KAHO boundaries.

Observations of coral disease and health indicators were documented by scuba divers along pre-determined transects and are presented here in comma-separated format. Included in the table are coral species observed, colony size, types and number of indicators observed, and a size range of indicators observed.

Spatial measurements of water temperature, specific conductance, salinity, pH, dissolved oxygen, and turbidity between 0.25 and 0.50 m water depth were collected every 10-seconds along and across shore at 12 principal study areas along west and east Hawaii Island. Measurements were made between 2010 and 2013 during different seasons and tide states over the course of 1.0 to 2.5 hours to evaluate the spatial and temporal extent of water properties that influence coral reef health and coral reef habitat availability.

This dataset consists of Resource-fish surveys using timed-swims at 14 coral reef ecosystem sites off West Hawaii and 39 sites off Maui in 2005. Effective management of coral reef ecosystems depends on adequate data on the status and trends of key ecosystem components. In spite of which, previous coral reef monitoring programs in the Main Hawaiian Islands (MHI) have been fragmentary and uncoordinated, with little or no overlap among programs in terms of survey site locations or habitat. The primary goal of this project was to develop and optimize an integrated reef-scale and ecosystem-scale monitoring approach for use by the state of Hawaii's aquatic resource management agency, the Division of Aquatic Resources (DAR), within the MHI. A combination of methods already applied by DAR with new ones developed and trailed by this project now form the basis of a standard 'method toolkit' for use by DAR monitoring staff. The key output of this project, an integrated statewide coral reef monitoring scheme, has been adopted by DAR, who have committed to implementing it, beginning in 2006. Two new monitoring approaches: (i) 'Resource-Fish' surveys (targeting the large and mobile fishes which are primary targets of recreational and commercial food fisheries); and (ii) 'Benthic Characterization' (intended to be a medium-large scale survey approach capable of relatively easily generating benthic information suitable for improved understanding of fish distribution and community structure, and for detecting gross change in benthos) were developed and field trailed at sites in West Hawaii. Extended fish trials of an 'integrated monitoring' approach, comprising both existing small-scale and the newly developed medium-large scale approaches were conducted at 14 sites in West Hawaii (Big Island) (each site surveyed 4 times for fish, once for 'Benthic Characterization'). Additionally, 'Resource-Fish' surveys using the newly developed methodology were conducted at 39 sites in Maui, and data from those surveys compared with an alternative approach focusing on the same fish groups which had been previously utilized at Maui sites (but not elsewhere in the state). 'Benthic Characterization' surveys were conducted at 14 sites in West Hawaii. This dataset includes only the 'Resource-Fish' surveys. The 'Benthic Characterization' sets will be provided to the NOAA posterity archive at a later date. NCEI Accession 0002627 contains the same data in this dataset for West Hawaii. This new dataset adds the Maui 'Resource-Fish' data.