Dataset

CalCOFI Fish Larvae & Egg Tows

OBIS USA MeasurementOrFact Open in mapper Explore occurrences

Fish larvae counts and standardized counts for eggs captured in CalCOFI ichthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets], and surface tows [Manta nets]). Surface tows are normally standardized to count per 1,000 m^3 strained. Oblique tows are normally standardized to count per 10 m^2 of surface sampled.

Published: March 10, 2026 at 01:22

License: The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, ERD, NOAA, nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information. To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0)

URL: https://ipt-obis.gbif.us/resource?r=calcofi_ichthyo

Contacts:

Ed Weber
NOAA SWFSC

Benjamin Best
Ocean Metrics LLC

463,655
occurrence records
610,816
measurements and facts
874
taxa
539
species

Taxa

Missing and invalid fields

Field Missing Invalid
maximumDepthInMeters 463,655
100.0%
minimumDepthInMeters 463,655
100.0%

Quality flags

The OBIS data quality flags are documented at https://github.com/iobis/obis-qc.

Flag Dropped Records
NO_DEPTH 463,655
100.0%
ON_LAND 145
0.0%

Measurement types

DNA derived data