Dataset: Vent Parasite Dissection Data
Deployment: AT15-15

The accepted genus and species name if the host is identified to species or a morphogroup identifier if it is not. Morphogroup names usually include the lowest taxonomic level and a letter to indicate a distinct morphological type. “Sp.” indicates the morphogroup is a single morphologically distinct group, and “spp.” indicates multiple species were likely grouped under the morphogroup name.

Machine-readable Life Science Identifier (LSID) containing the AphiaID from World Register of Marine Species at the lowest known taxonomic level that matches the host scientific or morphogroup name. This corresponds to Darwin Core term http://rs.tdwg.org/dwc/terms/scientificNameID.

Name of the person who collected the sample. When samples were collected from an HOV, the collector is usually the primary science observer on the dive. For ROV dives, the collector is the person who retrieved, processed, and stored the sample aboard ship. Missing data identifier NR (not recorded).

Free text providing additional information on the collection event (i.e., slurp, grab, trap), deployed collection device (i.e., trap or colonization surface), or storage container on HOV Alvin or ROV Jason (i.e., forward biobox). These values may correspond with collection events recorded in dive logs (i.e., SeaLog). Missing data identifier NR (not recorded).

Name for the vent site where the specimen was collected consistent with Wu et al. (2022). If there was ambiguity in the records of collection site, all potential sites are provided separated by the pipe (|) symbol. Missing data identifier NR (not recorded).

Renav latitude in decimal degrees recorded by HOV Alvin or ROV Jason at the time when the sample collection event was logged. If there was ambiguity in the records of collection location, all potential latitudes are provided separated by the pipe (|) symbol. Missing data identifier NR (not recorded).

The depth recorded by the depth meter on HOV Alvin or ROV Jason taken from renav data at the time when the sample collection was recorded. Depth is reported to the nearest meter. If there was ambiguity in the records of collection depth, all potential depths are provided separated by the pipe (|) symbol. Missing data identifier NR (not recorded).

The date the host specimen was dissected in format “YYYY-MM-DD”. Missing data identifier NR (not recorded).

The length of the host or the closest estimate (i.e., ~10) measured along the longest axis in units of millimeters following accepted methods for each taxon. For squat lobsters and shrimp, from the tip of the rostrum to the back of the carapace (carapace length); for crabs, at the widest point of the carapace (carapace width); for snails, from the apex to the tip of the siphonal canal or aperture (height); and for fish, from the tip of the nose to the end of the tail (total length). Missing data identifier NR (not recorded).

The width of the host measured at the widest point. Missing data identifier NR (not recorded).

The sex of the host determined by observations of eggs or sperm. Specimens were labeled “Male” or “Female” if the sex assignment was confident and “Male?” or “Female?” if the sex assignment was less confident. “Indeterminant” indicates the sex could not be determined. “Immature” indicates the specimen was too young for sexual characteristics to be developed. Missing data identifier NR (not recorded).

Free text notes on the host gut contents. Missing data identifier NA (not applicable) or NR (not recorded).

The tissue or anatomical location on or in the host where the parasite was found. “Wash” indicates the parasite was found detached in the collection container or storage bag with the host. NA is used if no parasites were found on the host. Missing data identifier NA (not applicable) or NR (not recorded).

An integer count or estimate (i.e., 10-100, ~500) of parasites or other symbionts encountered in dissections. Users should be aware that counts within a host specimen are split into unique rows if they were found in different tissues, had different preservation methods, or include unique length and width measurements. Users should aggregate counts by host ID or as suits their questions. Missing data identifier NR (not recorded).

Numerical identifier from World Register of Marine Species that matches the lowest known taxonomic level of the parasite or other symbiont species name. Missing data identifier NA (not applicable).

Whether the species or lowest possible taxonomic level identification of the parasite or other symbiont was based on morphological features, genetic identification by 18S or 28S barcoding, or both. Missing data identifier NA (not applicable).

The common name used to refer to the parasite or other symbiont taxonomic group in Dykman et al. (2023). Metazoan parasite group common names include Acanthocephala, Copepoda, Nematoda, Rhizocephala, and Trematoda. Commensal and egg predator group names include Polychaeta and Nemertea. Microbial or unknown pathologies are given informal descriptive names (i.e., cyst unk, filamentous bacteria, melanized tissue). Missing data identifier NA (not applicable).

Whether the parasite uses one host (direct), or whether it must pass through two or more hosts (indirect) to complete its life cycle. Life cycle assignments were based on direct observations when possible. Otherwise, the life cycle assignment was based on the most closely-related species for which a life cycle description was available, especially when life cycle traits were known to be constrained at a high taxonomic level. For detailed rationale for life cycle assignments, see Dykman, L. (2022) Parasite taxonomic and life cycle information from literature. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2022-08-25 http://lod.bco-dmo.org/id/dataset/879253. Missing data identifier NA (not applicable).

Free text indicating whether a specimen was preserved and what preservation method was used (e.g., 95% ethanol, 10% formalin). Sometimes the number of specimens preserved in a container is noted in parentheses. “NO” indicates a parasite was found but a sample was not collected. Missing data identifier NO (no photos were taken) or NA (not applicable).

The length of the parasite or the closest estimate (i.e., ~1000) measured along the longest dimension in units of micrometers. Missing data identifier NA (not applicable) or NR (not recorded).