Colonists were collected on experimental surfaces (sandwiches) constructed from six 0.7-cm-thick Lexan plastic plates separated by 1 cm spacers, creating a lattice 10 cm on a side (Bayer et al, 2011; note in 1998 colonists were collected on basalt blocks). Sandwiches were deployed and recovered by the submersible Alvin or ROV Jason. Deployment durations were 4, 2, 11, 11, 43, 10, and 29 months respectively for the recoveries at 9, 11, 22, 33, 96, 106, and 135 months after an eruption that took place in January 2006. The thermal environment at the base of each sandwich was measured with the Alvin (or Jason) temperature probe on deployment and recovery for ca 1\u20132 min until a clear maximum value was obtained.
\nSpecies abundance was assessed on three replicate sandwiches for each treatment (e.g., from one habitat within a site at a particular recovery date). On recovery, each sandwich was placed in individual collection compartments for transport back to the ship. On board, sandwiches and their attached colonists were preserved in 80% ethanol, as were any individuals that had become detached in the compartment and were retained on a 63-\u00b5m sieve. In the laboratory, each surface was examined under a dissecting microscope and all metazoan colonists (including detached individuals >1 mm) were enumerated and identified to species if possible.\u00a0Additional identifications based on genetic barcoding are in progress using support from other sources.\u00a0 Those data will be added in future.
Counts of colonist species and morphogroups on post-eruption sandwiches (at P-vent) and pre-eruption blocks (at East Wall) near 9\u00b050'N on the East Pacific Rise (EPR). Recovery date (months since January 2006 eruption), deployment habitat zone (H=Hot, W=Warm, C=Cool), sample ID, and recovery temperature (deg C) are presented for each sample. Species and morphogroups were matched to equal or lowest level taxon in the World Register of Marine Species (WoRMS). Data were provided using Darwin Core terms to enable harvesting by the Ocean Biodiversity Information System (OBIS).
\nData are also provided in a wide format [see Data Files section] with\u00a0columns for each sample which\u00a0indicate monthsSinceEruption - Zone - samplerID - temperatureRecovered, e.g., 9-H-2-26.7 indicates nine months post-eruption, in zone hot, sampler ID 2, recovered at 26.7 deg C. Values in each of these columns indicate counts of individuals identified to that dataProviderName for that sample. Zeroes denote absence.\u00a0
\nSpatiotemporal metadata for the samples are provided in Dataset: Colonization sampler log https://www.bco-dmo.org/dataset/733210. These data are published in\u00a0Mullineaux et al (2012). doi:10.1371/journal.pone.0050015.
Data cleaning and merging with taxonomic identifiers were performed with code available on GitHub:
\nhttps://github.com/sbeaulieu/EPR-traits/blob/master/Pvent_data_cleaning_BCODMO.R
The *Laminatubus alvini group may include small Protis hydrothermica; thus, the lowest taxonomic match is at family rank.
\nBCO-DMO Processing Notes:
\n- added conventional header with dataset name, PI name, version date
\n- added latitude, longitude, and date, obtained from the sampling log dataset (Colonization sampler log,\u00a0https://www.bco-dmo.org/dataset/733210)