Dive 16: Symphony in Sea Minor
September 22, 2017
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Dive 16: Hiding in the Dark

Dive 16 was our second full day of midwater exploration. This dive has offered us an incredible opportunity to better understand fauna distributions in the water column, diversity of organisms present in the Musicians Seamounts, and morphology of delicate organisms that might be damaged by collections with nets. Video courtesy of the NOAA Office of Ocean Exploration and Research, Deep-Sea Symphony: Exploring the Musicians Seamounts. Download (mp4, 37.8 MB)

Dive 16 was our second full day of midwater exploration. This dive, as well as Dive 11, and all of the other midwater transects conducted at the end of benthic dives, have offered us an incredible opportunity to better understand fauna distributions in the water column, diversity of organisms present in the Musicians Seamounts, and morphology of delicate organisms that might be damaged by collections with nets. During today’s dive, we completed two rounds of four 25-minute transects at varying depths. Our first transect kicked off with observations of large siphonophores, jellyfish, arrow worms, and a couple unidentified swimming (or floating) organisms. Similar faunal groups were observed throughout the dive, with siphonophores, arrow worms, and bristlemouths being some of the most commonly observed fauna. Other organisms observed during transects included a diversity of ctenophores, shrimp, larvaceans, and protists. Particular highlights of the day were what appeared to be an egg mass, a black ctenophore, a piglet squid, and a pair of sea elephants interacting.