Table of Contents

• Coverage
• Dataset Description
  • Methods & Sampling
  • Data Processing Description
• Data Files
• Supplemental Files
• Parameters
• Instruments
• Project Information
• Funding

Two HOBO temperature loggers were set and replaced annually 2012-2019 at two locations, HOBO1 (10.74373, 124.78668), HOBO2 (10.74364, 124.78665), off the coast of the West coast of Leyte, the Philippines. Loggers were recovered and swapped annually. 

The two devices took readings 15 minutes apart, and each took readings every 30 minutes, for a combined reading every 15 minutes.  The loggers are spaced 10.5 m apart in a NW orientation. They are 80m offshore and tethered to the seafloor at a depth of ~4m  (varies with tide).

Issue Report: The 2014 loggers were never recovered due to being displaced by Typhoon Yolanda.  There are no data from 2014 in this dataset. 

There are gaps in the temperature in this dataset that mark times when the loggers started and stopped, which can be seen as null values in the "Temp" column in the data table.

BCO-DMO Data Manager Processing Notes:
* Data Version 1:  individual csv files collected into file bundles and added to the datset in the "Data Files" section.  They could not be combined into one table for this dataset due to inconsistency amongst the files in temperature (C or F) and time zones.
* Dataset version 2 [2023-03-06] replaces dataset version 1. Version 2 includes a combined data table with consistent time zone and formatting across the entire dataset.  The original hobo files are still attached in addition to the combined table.

Description from NSF award abstract:
When Typhoon Haiyan hit the Philippines it had sustained winds of 305 to 315 kph and was the strongest storm ever to make landfall. Storms are one of the most important disturbances to coral reef ecosystems. Previous research has primarily emphasized that habitat recovery is important for the recovery of reef fish communities after disturbance. We understand little, however, about the role of larval dispersal in mediating species responses to disturbance. Reef fish function as metapopulations connected by larval dispersal among reefs, and larval connectivity is therefore a critical process for their dynamics. A field site directly in Typhoon Haiyan's path provides an ideal opportunity to address the role of larval dispersal during recovery. Over the course of four field seasons (2008 to 2013), nearly two thousand clownfish were surveyed along 20km of coastline. Clownfish possess the same basic life history as most reef fish (sedentary adults and pelagic larvae), but are sufficiently rare and visible that genetic parentage methods can be used to follow larval dispersal. This study site is therefore a unique location in which to understand the metapopulation impacts of a massive storm. This project will focus on three hypotheses: 1) Habitat destruction determines the short-term impacts of storms disturbance, 2) Metapopulation processes shape recolonization after disturbance, and 3) Disturbance allows rare competitors to increase in abundance. The project will address these questions with a combination of fixed and random transects to assess reef habitat and reef fish abundance and diversity, as well as detailed, spatially explicit surveys of anemones and clownfish. Genetic mark-recapture and parentage methods with yellowtail clownfish will pinpoint the origin of new recruits that recolonize the reef post-typhoon.