Description
The morphometric characteristics that separate white marlin Kajikia albidus from roundscale spearfish Tetrapturus georgii can be difficult for non-experts to distinguish, particularly when the animals are in the water. Using the measurements of the lower jaw tip to the longest branchiostegal ray (LJBR) and the opercle (LJOP), a discriminant function is presented that will help field observers separate the two species. The function DR-W LJBR (3.31861) LJOP (-2.84856) 6.37198 classified specimens as roundscale spearfish when DR-W was 0 and as white marlin when DR-W 0 with a 95 correct classification rate overall. Since only the head of a specimen needs to be closely observed, the method has particular utility for tournament anglers during the hook removal process.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| Global Change Master Directory (GCMD) Keywords | Unknown | The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. | Open resource |
| Full Metadata Record | Unknown | View the complete metadata record on InPort for more information about this dataset. | Open resource |
| Full Metadata Record | Unknown | View the complete metadata record on InPort for more information about this dataset. | Open resource |
| NOAA Data Management Plan (DMP) | NOAA Data Management Plan for this record on InPort. | Open resource |