Field temperatures from Tegula Intertidal marine snail habitats in San Diego, California
Data files
Mar 24, 2025 version files 1.52 MB
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2190990_2014-9-18_06_14_24_BadDataRemoved_11.7.14.xlsx
222.97 KB
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21909984_2024-10-17_15_28_35_PDT_(Data_PDT).xlsx
322 KB
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21909985_2024-10-17_15_34_25_PDT_(Data_PDT).xlsx
327.37 KB
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21909988_2024-10-18_15_26_06_PDT_(Data_PDT).xlsx
317.61 KB
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21909990_2024-10-18_16_02_09_PDT_(Data_PDT).xlsx
325.41 KB
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README.md
4.87 KB
Abstract
Climate change-induced population declines of highly abundant intertidal invertebrates will affect ecosystem function and stability, but it is not fully understood which species are most vulnerable to these declines. Rocky intertidal Tegula snails live at different tidal heights and exhibit variability in heat tolerance, but the temperatures these different species experience in the field, and thus which species are most susceptible to climate change, remains unknown. Here, we use HOBO data loggers to record field temperatures in the unique thermal habitats of Tegula eiseni, Tegula funebralis, and Tegula gallina in San Diego, California. Determining the maximum temperatures each Tegula species is exposed to in the field will ultimately inform conservation efforts by identifying which Tegula species are most threatened by heat stress.
https://doi.org/10.5061/dryad.wwpzgmsw2
Description of the data and file structure
This dataset contains field temperature data collected from the habitats utilized by three different species of Tegula intertidal marine snails (Tegula eiseni, Tegula funebralis, and Tegula gallina) to investigate their exposure to heat stress in their natural intertidal height ranges at two sites in San Diego, California: Dike Rock (32° 52’ N, 117° 15’ W) and Bird Rock (32° 48’ N, 117° 15’ W). We utilized HOBO Pendant MX Water Temperature Data Loggers set to record temperature every 10 minutes to monitor and record temperatures in the snails’ unique microhabitats for 12.5 weeks from July to October 2024, aiming to assess the maximum and range of temperatures these species experience during the hottest time of the year. This data provides critical insights into the heat stress levels each species of snails is exposed to, helping us to contextualize their physiological limits and thermal thresholds amidst changing environmental conditions.
Files and variables
File: 2190990_2014-9-18_06_14_24_BadDataRemoved_11.7.14.xlsx
Description: HOBO logger 90 contains a subset of temperature values for T. funebralis at Bird Rock in San Diego, California (32° 48’ N, 117° 15’ W). Logger was placed +0.76 m above mean lower low water (MLLW). Data past 9/18/2024 omitted due to field malfunction when logger got turned upside down in a tide pool, preventing it from being exposed to air.
Variables
- The Excel file contains three tabs: Data (raw recordings), Events (HOBOlogger connections), and Details (device information and configuration). In the Data tab, the “#” column indicates the recording number, Date-Time (PDT) records the collection time in Pacific Daylight Time at 10-minute intervals, and Temperature shows the recorded values in degrees Celsius.
File: 21909985_2024-10-17_15_34_25_PDT_(Data_PDT).xlsx
Description: HOBO logger 85 recorded temperature data for T. gallina at Dike Rock in La Jolla, San Diego, California (32° 52’ N, 117° 15’ W). Logger was placed +1.0 m above MLLW.
Variables
- The Excel file contains three tabs: Data (raw recordings), Events (HOBOlogger connections), and Details (device information and configuration). In the Data tab, the “#” column indicates the recording number, Date-Time (PDT) records the collection time in Pacific Daylight Time at 10-minute intervals, and Temperature shows the recorded values in degrees Celsius.
File: 21909988_2024-10-18_15_26_06_PDT_(Data_PDT).xlsx
Description: HOBO logger 88 recorded temperature data for T. eiseni at Bird Rock in San Diego, California (32° 48’ N, 117° 15’ W). Logger was placed +0.12 m above MLLW.
Variables
- The Excel file contains three tabs: Data (raw recordings), Events (HOBOlogger connections), and Details (device information and configuration). In the Data tab, the “#” column indicates the recording number, Date-Time (PDT) records the collection time in Pacific Daylight Time at 10-minute intervals, and Temperature shows the recorded values in degrees Celsius.
File: 21909984_2024-10-17_15_28_35_PDT_(Data_PDT).xlsx
Description: HOBO logger 84 recorded temperature data for T. gallina at Dike Rock in La Jolla, San Diego, California (32° 52’ N, 117° 15’ W). Logger was placed +0.5 m above MLLW.
Variables
- The Excel file contains three tabs: Data (raw recordings), Events (HOBOlogger connections), and Details (device information and configuration). In the Data tab, the “#” column indicates the recording number, Date-Time (PDT) records the collection time in Pacific Daylight Time at 10-minute intervals, and Temperature shows the recorded values in degrees Celsius.
File: 21909990_2024-10-18_16_02_09_PDT_(Data_PDT).xlsx
Description: HOBO logger 90 recorded temperature data for T. funebralis at Bird Rock in San Diego, California (32° 48’ N, 117° 15’ W). Logger was placed +0.76m above MLLW.
Variables
- The Excel file contains three tabs: Data (raw recordings), Events (HOBOlogger connections), and Details (device information and configuration). In the Data tab, the “#” column indicates the recording number, Date-Time (PDT) records the collection time in Pacific Daylight Time at 10-minute intervals, and Temperature shows the recorded values in degrees Celsius.
Code/software
Data may be viewed using Microsoft Excel or Google Sheets.
Access information
Other publicly accessible locations of the data:
- Not applicable
Data was derived from the following sources:
- Not applicable
HOBO Pendant MX Water Temperature Data Loggers (Onset) set to record temperature every 10 minutes were deployed at two different study sites in San Diego, CA: La Jolla (LJ; 32°52’N, 117°15’W) and Bird Rock (BR; 32°48’N, 117°15’W) for 12.5 weeks. At La Jolla, only Tegula gallina were abundant, so two loggers were deployed to assess field temperatures experienced by this species. At Bird Rock, all three Tegula species (Tegula eiseni, Tegula funebralis, and Tegula gallina) were abundant, so six total loggers were deployed with two set to assess field temperatures experienced by each species. Loggers were attached to the horizontal surface of rocks next to live individuals of each respective species in the intertidal using Z-spar epoxy (A-788 Splash Zone Compound; Lima & Wethey 2009). This placement ensured temperatures were recorded from habitat the Tegula individuals utilize.
Loggers were deployed for 12.5 weeks from July to October 2024. Bird Rock suffered high loss of instrumentation, losing one T. eiseni logger, one T. funebralis logger, and both T. gallina loggers. T. gallina data presented here are from the La Jolla loggers placed ~ +0.5 m and ~ +1.0 m above mean lower low water (MLLW). The T. funebralis and T. eiseni data are from Bird Rock loggers, placed at ~+0.76 m and ~+0.12 m, respectively. During deployment, the T. funebralis logger at Bird Rock was turned upside down and submerged in a tidepool which prevented it from logging air temperatures. To estimate when this occurred, we used the temperature data, in conjunction with the high and low tide times and predictions of temperature fluctuations that would occur if the logger was exposed to air, and thus removed any data after September 18, 2024.