©2026 Biological and Chemical Oceanography Data Management Office.Funded by the U.S. National Science Foundation
©2026 Biological and Chemical Oceanography Data Management Office.In May 2024, the R/V Sally Ride cruises SR2407 was conducted in the Gulf of California. The MOCNESS tow nets were deployed during this cruise. This dataset presents biomass of size fractionated zooplankton samples were collected using a 1 m2 MOCNESS with 222 micrometer mesh. The biomass comes from a pair of day and night tows 0-1000 m in Guaymas Basin in the Gulf of California on May 4th and May 5th.
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In May 2024, the R/V Sally Ride cruises SR2407 was conducted in the Gulf of California. The MOCNESS tow nets were deployed during this cruise. Biomass of size fractionated zooplankton samples were collected using a 1 m2 MOCNESS with 222 micrometer mesh. The biomass comes from a pair of day and night tows 0-1000 m in Guaymas Basin in the Gulf of California on May 4th and May 5th.
Biomass of zooplankton collected by MOCNESS net tows partitioned into 5 size fractions. On board a portion of the tow (split) was size fractionated into five size classes (200-500, 500-1000, 1000-2000, 2000-5000, >5000) then dried on a pre-weighed filter, rinsed with ammonium formate and frozen at -80. Upon return to land the filter was gently blotted then weighed on a microbalance to get wet weight. Each filter was then placed in a drying oven (~55C) for a minimum of 3 days and weighed again to obtain a dry mass measurement. To calculate biomass per m3 multiply by split and divide by volume filtered.
Maas, A. E. (2026). MOCNESS Biomass data associated with R/V Sally Ride cruise SR2407 in the Gulf of California in May 2024. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2026-04-10 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/996652 [access date]
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This dataset is licensed under Creative Commons Attribution 4.0.
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