Biological measurements and metadata associated with fish caught in the field

Source: R/data.R

A dataset containing variables collected from field measurements of fish collected by the Juvenile Salmon Program

fish_field_data

Format

An object of class tbl_df (inherits from tbl, data.frame) with 14090 rows and 14 columns.

Details

ufn

The alphanumeric string that uniquely identifies a fish. Primary key to: fish_lab_data, sealice_field, and sealice_lab_motiles.

• Joining to fish_lab_data by UFN will filter out fish that haven't been dissected, because un-dissected fish that were caught in 2015 and 2016 do not have a UFN. To retain un-dissected fish when joining to fish_lab_data use semsp_id.

semsp_id

A unique ID for every fish retained that was a concatenation of survey_date, site_id, species, and order the fish was pulled out of the net. In 2017 this was method was abandonded, and instead we assigned seine IDs and UFNs to uniquely identify seines and fish

seine_id

A unique ID assigned to each seine conducted within a survey. Foreign key to seine_data.

species

The species of fish collected. SO = Sockeye, PI = Pink, CU = Chum, CO = Coho, HE = Herring, CK = Chinook

package_id

An alphanumeric code used to identify the package (aka. "bundle") that a fish was grouped with in the field, and then subsequently stored with in the freezer until it was dissected. Foreign key to package_data

fish_time_out

Time that the fish was euthanized after being taken out of the seine. In conjunction with fish_time_dewar you can calculate the handling time of the fish before being flash frozen in liquid nitrogen. Format: hh:mm:ss

fish_dewar

Time that the fish was put into the liquid nitrogen dry shipper. In conjunction with fish_time_dewar you can calculate the handling time of the fish before being flash frozen in liquid nitrogen. Format: hh:mm:ss

fork_length_field

The fork length of the fish measured while in the field using a 15 cm flexible ruler. Units: millimetres

height_field

The height of the fish measured perpendicular to the lateral line from the anterior insertion of the dorsal fin to the ventral side of the fish. Units: millimetres

weight_field

The weight of the fish measured in the field using a spring scale. Units: grams. Precision is +/- 1 g

analysis_planned

The type of analysis the fish is to undergo (or has underwent). Field loused only = fish are not retained, and therefore have no SEMSP ID or package ID for inventory.

dissection_status

Whether or not the fish had been dissected at the time the data package was released