Dataset

SWFSC Marine Mammal Survey, SWAPS 1997, Cruise 1607

OBIS-SEAMAP Open in mapper Explore occurrences

Original provider: NOAA Southwest Fisheries Science Center (SWFSC) Dataset credits: Marine Mammal and Turtle Division, Southwest Fisheries Science Center, NMFS, NOAA Abstract: The 1997 Sperm Whale Abundance and Population Structures (SWAPS) line-transect survey was designed to census sperm whales near the end of their breeding season in the North Pacific Ocean from the west coast of the U.S. out to 158 degrees west longitude. This survey was conducted by the NOAA Southwest Fisheries Science Center aboard the NOAA ship McArthur for a total of approximately 12,000 kilometers surveyed from early March to early June 1997. This dataset provides the time-date and geographical coordinates, by species/stock, of all cetaceans detected during the survey, as well as the daily and intra-daily start and end points of the line-transect survey.

Citation: Archer, E. and D. Weller. 2023. SWFSC Marine Mammal Survey, SWAPS 1997, Cruise 1607. Version 1.0.0. Dataset published in OBIS-SEAMAP. https://doi.org/10.82144/f7ddc9c7.

Published: October 08, 2025 at 01:09

URL: http://ipt.env.duke.edu/resource?r=zd_1028

Eric Archer
NOAA Southwest Fisheries Science Center

Dave Weller
NOAA Southwest Fisheries Science Center

228
occurrence records
29
taxa
22
species

Taxa

Missing and invalid fields

Field Missing Invalid
maximumDepthInMeters 228
100.0%
minimumDepthInMeters 228
100.0%

Quality flags

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

Flag Dropped Records
NO_DEPTH 228
100.0%

Measurement types

DNA derived data