Name: Raw seawater temperature data from the long-term monitoring of the microhabitats of intertidal invertebrates in Sea Point, South Africa, 21 September to 12 November 2020
License: https://creativecommons.org/licenses/by-sa/4.0/

DOI: 10.15493/dea.mims.26052357

Title	Raw seawater temperature data from the long-term monitoring of the microhabitats of intertidal invertebrates in Sea Point, South Africa, 21 September to 12 November 2020
Project	Conservation Physiology Programme
Authors	Tanya Haupt Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE) Production Scientist 2nd Floor, Foretrust Building, 1 Martin Hammerschlag Way, Cape Town, South Africa, THaupt-Schuter@environment.gov.za Laurenne Snyders Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE) Technician 2nd Floor, Foretrust Building, 1 Martin Hammerschlag Way, Cape Town, South Africa, LSnyders@environment.gov.za Lutz Auerswald Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE) Specialist Scientist 5th Floor, Foretrust Building, 1 Martin Hammerschlag Way, Cape Town, South Africa, lutz.auerswald@gmail.com
Publisher	Department of Forestry, Fisheries and the Environment (2020)
Contributors	Contact Person: Tanya Haupt Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE); role: Production Scientist; contact details: email: THaupt@dffe.gov.za
Abstract	To better understand the physiological effects of marine invertebrates to changing environmental conditions, long-term monitoring which captures the natural variability of environmental parameters is required. In this way, experimental findings can be related back to field conditions, and better predictions can be made as to how marine invertebrates, particularly in the harsh intertidal, will fair with rising temperature. In May 2020, Cape Sea Urchins, Parechinus angulosus, were collected from intertidal rock pools at Sea Point, which is situated along the southwest coast of South Africa. After chronic incubation in low pH conditions at the Department of Environment, Forestry and Fisheries' (DEFF) Sea Point Research Aquarium, their response to thermal stress was investigated in recent experimental trials. To calculate the thermal window for these marine invertebrates, both habitat temperatures, as well as their threshold temperatures are required. The latter was obtained by examining the Critical Thermal Maximum temperatures (CTmax), i.e. the temperatures at which organisms respond with uncoordinated mobility, whereas habitat temperatures are available through the deployment of temperature loggers in the intertidal pools inhabited by these organisms.Three prominent rockpools were chosen in Sea Point, Cape Town (>5 m apart) to install HOBO TidbiT temperature loggers. Two loggers were placed in each pool. Here we present the raw temperature measurements from Pool 1: 33.920317 S, 18.379417 E, logger 10687237 and 20195550; Pool 2: 33.920267 S, 18.379417 E, logger 10687240 and 20195554; Pool 3: 33.920167 S, 18.379717 E, logger 20195539 and 20195574, from 21 September to 12 November 2020.
Methods	The details of each pool are captured in the "README" file. The loggers were set to record temperature every 5 minutes.The current design is attaching loggers via cable ties to I-bolts drilled into the substrate. All loggers were positioned facing the sea. Data were extracted from the loggers using HOBOware Pro software and exported into Excel files. Times are GMT+2. The data available are the raw files (all temperatures even outside of the rockpools).
Data	Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) Cite 10.15493/dea.mims.26052357 Style Terms of use These data are made available with the express understanding that any such use will properly acknowledge the originator(s) and publisher and cite the accession numbers and/or associated Digital Object Identifiers. Anyone wishing to use these data should properly cite and attribute the data providers listed as authors in the metadata provided with each dataset. It is expected that all the conditions of the data license will be strictly honoured. Use of any material herein should be properly cited using the dataset’s persistent identifiers such as accession numbers and DOIs. I agree to the terms of use
Temporal extent	21 Sep 2020 – 12 Nov 2020
Geographic extent	Sea Point, Western Cape, South Africa North: -33.920167 South: -33.920317 West: 18.379417 East: 18.379717
Vertical extent	Max: -0.068 m Min: -0.21 m
Keywords	Intertidal, logger, Rockpools, Sea Point, SOUTH ATLANTIC OCEAN, Temperature
Related resources	This digital object continues Raw seawater temperature data from the long-term monitoring of the microhabitats of intertidal invertebrates in Sea Point, South Africa, 13 November 2019 to 12 April 2020 (10.15493/dea.mims.26052351) This digital object is part of Long-term monitoring of seawater temperature in the microhabitats of intertidal marine invertebrates in Sea Point, South Africa (10.15493/dea.mims.26052350)

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