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Lowder, Kaitlyn; deVries, Maya S; Hattingh, Ruan; Day, James M D; Andersson, Andreas J; Zerofski, Phillip; Taylor, Jennifer (2022): Cuticle thickness of juvenile California spiny lobsters (Panulirus interruptus) in response to ocean acidification [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.945356, In: Lowder, K et al. (2022): Exoskeletal predator defenses of juvenile California spiny lobsters (Panulirus interruptus) are affected by fluctuating ocean acidification [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.945362

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Abstract:
We examined the response of multiple structures used for predator defense in the California spiny lobster, Panulirus interruptus, to a series of ocean acidification-like conditions. Lobsters were collected by modified commercial traps offshore La Jolla, CA (in the area around 32.8534193, -117.2687516) in October 2016 and held at ambient conditions (pH 7.97, 16.5°C) before exposure to stable or diurnally fluctuating reduced pH conditions established by bubbling CO2 and as measured using best practices (ambient pH/stable, 7.97, 16.5°C; reduced pH/stable 7.67, 16.6°C; reduced pH with low fluctuations, 7.67 ± 0.05, 16.4°C; reduced pH with high fluctuations, 7.67 ± 0.10, 16.4°C). After three months, we examined cuticle layer thickness (µm) using a scanning electron microscope (SEM) equipped with electron-dispersive x-ray spectroscopy (EDX). Each cuticle sample was rinsed with deionized water and allowed to air dry. Samples were then freeze-fractured with liquid nitrogen and critical-point dried (AutoSamdri 815 Series A, Tousimis, Rockville, MD, USA) before being mounted on a 90-degree SEM tip and sputter-coated with iridium. Cross-sections of these cuticle samples were examined with ultra-high-resolution scanning electron microscopy under high vacuum (XL30 SFEG with Sirion column and Apreo LoVac, FEI, Hillsboro, OR, USA with Oxford X-MAX 80 EDS detector, Concord, MA, USA) at 10 or 20 kV. One to two samples each of the carapace spine and antenna from individual lobsters were imaged and measured for the total cuticle thickness (epicuticle, exocuticle, and endocuticle), as well as thickness of the individual exo- and endocuticle layers.
Keyword(s):
California Current Ecosystem; crustacean; Laboratory experiment; Ocean acidification
Supplement to:
Lowder, Kaitlyn; deVries, Maya S; Hattingh, Ruan; Day, James M D; Andersson, Andreas J; Zerofski, Phillip; Taylor, Jennifer (2022): Exoskeletal predator defenses of juvenile California spiny lobsters (Panulirus interruptus) are affected by fluctuating ocean acidification-like conditions. Frontiers in Marine Science, 9, 909017, https://doi.org/10.3389/fmars.2022.909017
Related to:
Lowder, Kaitlyn (2022): kblowder/Spiny-lobster-exoskeleton-OA: code only. Zenodo, https://doi.org/10.5281/zenodo.6596558
Coverage:
Latitude: 32.853419 * Longitude: -117.268752
Date/Time Start: 2016-10-01T00:00:00 * Date/Time End: 2016-10-01T00:00:00
Event(s):
La_Jolla_trap_2016 * Latitude: 32.853419 * Longitude: -117.268752 * Date/Time: 2016-10-01T00:00:00 * Location: off Southern California * Method/Device: Trap, baited (TRAPB)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Type of studyStudy typeLowder, Kaitlyn
2Species, unique identificationSpecies UIDLowder, Kaitlyn
3Species, unique identification (URI)Species UID (URI)Lowder, Kaitlyn
4Species, unique identification (Semantic URI)Species UID (Semantic URI)Lowder, Kaitlyn
5Specimen identificationSpec IDLowder, Kaitlyn
6StatusStatusLowder, Kaitlynmolted?
7Body regionBody regionLowder, Kaitlyn
8Cuticle layerCuticle layerLowder, Kaitlyn
9IdentificationIDLowder, Kaitlyntreatment
10TreatmentTreatLowder, Kaitlyn
11Treatment: pHT:pHLowder, Kaitlyn
12pH, standard deviationpH std dev±Lowder, Kaitlyn
13Treatment: temperatureT:temp°CLowder, Kaitlyn
14DistanceDistanceµmLowder, KaitlynScanning electron microscope (SEM) equipped with electron-dispersive x-ray spectroscopy (EDX)
15Validation flag/commentFlag commLowder, Kaitlyn
16Quality controlQCLowder, Kaitlyn
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
48882 data points

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