Davidson Seamount 2015: Characterization of Mammals, Birds, and Midwater Fishes Above and Adjacent to Davidson Seamount
- Andrew DeVogelaere
Monterey Bay National Marine Sanctuary
End Date: May 13, 2015
This multi-disciplined and complex research mission accomplished most of the research goals for areas within the Davidson Seamount Management Zone and other Sanctuary Ecologically Significant Areas (SESAs). The NOAA fishing survey vessel, "Bell M. Shimada" was used as the operational platform. Individual projects completed included the recording of marine mammal and ocean noise with hydrophones, oceanographic data and water sampling with a CTD, collection of water samples for Fukushima isotope analysis (with a CTD), collection of water samples for environmental DNA analysis (with a CTD), mesopelagic fish surveys (with a tucker trawl), marine mammal and seabird surveys were conducted above and adjacent to Davidson Seamount (although most of the surveys occurred in a Beaufort state 6 or above, making the data incomprable), and filming for video production of NOAA research and collaborative Marine Biodiversity Observatory Network (MBON) was completed. Additional proposed research that could not be completed due to ocean conditions included Puma drone surveys to observe marine mammals at DSMZ. Media Day was held off the wharf in Santa Cruz.
"Exploring the Davidson Seamount," a video summarizing work accomplished during the first half of this cruise
- No trends until project data are analyzed and summarized.
DiscussionNo discussion until project data are analyzed and summarized.
- Habitat association
- Dissolved oxygen
- Non-indigenous species
- Migration/movement patterns
Study MethodsSummary of Methods:
Map depicting F/V Shimada's tracklines and scientific events such as Tucker trawl deployment and retrieval, CTD, hydrophone deployment and recovery and marine mammal survey (on and off effort)
1.Segment 1 (May 5 – May 8)
a. Marine mammal and seabird survey above and adjacent to Davidson Seamount Management Zone (DSMZ; daytime)
b. Soundscape survey above and adjacent to DSMZ (daytime): Deploy and retrieve hydrophone to record marine mammal and ocean noise
c. Collection of oceanographic data and water samples (CTD) above and adjacent to DSMZ (nighttime); water samples for environmental DNA (Stanford)
d. Filming for video production on NOAA research and collaborative Marine Biodiversity Observatory Network (MBON)
2. Segment 2 (May 9): Media Day and Transfer of Scientific Party, Santa Cruz, CA
a. Media day (morning) to promote MBNMS research, NOAA’s largest visitor center on the West Coast (Sanctuary Exploration Center), and NOAA ship operations; held on the ship anchored off Santa Cruz (harbor or wharf), CA
b. Unload Segment 1 Science party; Load Segment 3 Science party; ship anchored off Santa Cruz (harbor or wharf), CA
3. Segment 3 (May 10 – May 13)
a. Mesopelagic fishes survey above and adjacent to DSMZ, and within Sanctuary Ecologically Significant Areas (SESAs) during transit to/from DSMZ (daytime/nighttime; Tucker trawl).
b. Collection of oceanographic data and water samples (CTD) above and adjacent to DSMZ (daytime/nighttime); water samples for environmental DNA analysis (Stanford)
Figures and Images
Photo of the FSV Bell M. Shimada, the operating platform for this research cruise.
Map of F/V Bell M. Shimada tracklines and expedition events
Marine mammal and seabird observers aboard the flying bridge of the FSV Bell M. Shimada
Photos of birds taken on survey May 8, 2015. Photos a-d are of Black-footed albatross. Photos e and f are of a Cook’s petrel. (photos by Chad King)
A fin whale’s blowhole (top) and characteristic dorsal fin. (photo by Chad King)
A viperfish (Chauliodus sp) pulled up in one of the trawls over the Davidson Seamount. (photo by Chad King)
Erica Burton, MBNMS Research Specialist, scoops a gelatinous soup of contents from the midwater trawl into trays for sorting. (photo by Chad King)
An infographic detailing how various ocean observing instruments will form a network of marine biodiversity observatories within National Marine Sanctuaries.