Tanner, Richelle L: Nudibranch habitat preference in Southern California tidepools - experimental setup [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.987811 (dataset in review)
Abstract:
Nudibranchs, sea slugs belonging to the Mollusca phylum, reside in rocky intertidal ecosystems worldwide. These intertidal ecosystems are facing significant impacts of climate change, including, in the Eastern Pacific Ocean, an increase in the frequency and severity of El Niño Southern Oscillation (ENSO) weather events. While most organisms are negatively affected by the warm waters that accompany ENSOs, nudibranchs have documented population booms. They are also highly tolerant of thermal extremes, positioning them as important indicators of tidepool health. To address biotic and abiotic conditions that impact nudibranch presence, we investigated ecological factors that affect the microhabitat selection of nudibranchs in tidepools across Southern California in June 2022-January 2023 (ranging across 35.2589°N, 120.8975°W to 32.7269°N, 117.2562°W). We evaluated the environmental and habitat characteristics of 28 tidepools from each of ten field sites each during summer and winter. We also collected species richness data and measured the thermal inertia of seaweeds. Tidepool depth and bottom substrate were significantly correlated with nudibranch presence but not temperature. Nudibranchs were more likely to occur near seaweeds that had high, rather than low, thermal inertia and in tidepools without, rather than with, sea anemones. Here, we present the first documentation of multivariate abiotic and biotic interactions that influence nudibranch presence.
Coverage:
Median Latitude: 33.905610 * Median Longitude: -118.607090 * South-bound Latitude: 32.726900 * West-bound Longitude: -120.897500 * North-bound Latitude: 35.258900 * East-bound Longitude: -117.256200
Date/Time Start: 2022-06-30T00:00:00 * Date/Time End: 2023-01-23T00:00:00
Event(s):
Nudibranchs_AVB (Avila Beach) * Latitude: 35.173400 * Longitude: -120.755900 * Date/Time Start: 2022-07-14T00:00:00 * Date/Time End: 2023-01-04T00:00:00 * Campaign: Nudibranchs_SoCalBight * Method/Device: Sampling by hand (HAND)
Nudibranchs_CAB (Cabrillo) * Latitude: 33.709000 * Longitude: -118.284000 * Date/Time Start: 2022-07-01T00:00:00 * Date/Time End: 2023-01-23T00:00:00 * Campaign: Nudibranchs_SoCalBight * Method/Device: Sampling by hand (HAND)
Nudibranchs_CTC (Christmas Tree Cove) * Latitude: 33.762200 * Longitude: -118.417600 * Date/Time Start: 2022-07-02T00:00:00 * Date/Time End: 2023-01-20T00:00:00 * Campaign: Nudibranchs_SoCalBight * Method/Device: Sampling by hand (HAND)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Tanner, Richelle L | |||
| 2 | Type of study | Study type | Tanner, Richelle L | |||
| 3 | Date/time start, experiment | Date/time start exp | Tanner, Richelle L | |||
| 4 | Date/time end, experiment | Date/time end exp | Tanner, Richelle L | |||
| 5 | Location | Location | Tanner, Richelle L | |||
| 6 | Data collection date | DC date | Tanner, Richelle L | |||
| 7 | Season | Season | Tanner, Richelle L | winter or summer | ||
| 8 | Identification | ID | Tanner, Richelle L | unique within collection sites/dates | ||
| 9 | Species | Species | Tanner, Richelle L | Visual identification (VID) | done to genus level | |
| 10 | Treatment: temperature | T:temp | °C | Tanner, Richelle L | Thermocouple probe [0.1°C accuracy] | measured at 0 minutes |
| 11 | Treatment: temperature | T:temp | °C | Tanner, Richelle L | Thermocouple probe [0.1°C accuracy] | measured at 30 minutes |
| 12 | Thermal inertia | Th inertia | Tanner, Richelle L | measured as change in temperature over time under a heating unit proportional to change in air temperature, as a function of mass | ||
| 13 | Nudibranchia | Nudibranchia | # | Tanner, Richelle L |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
3550 data points
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