<div><p><strong>Sample Collection:</strong><br />
Samples were collected using a 71-cm diameter Bongo net with 505-micron-mesh nets with calibrated flow meter. Tow speed was generally 0.5-1 m sec<sup>-1</sup>. Wire angle and wire out were used to conduct oblique tows from the surface to 100m to the surface.</p></div>
BONGO net tow zooplankton abundance estimates
<div><p>The abundance (# m<sup>-3</sup>, ppm) for selected taxa in each analyzed BONGO deployment.</p>
<p><strong>Related reference:</strong><br />
Dagg, M.J., G.A. Jackson, and D.M. Checkley, Jr. (in press). The distribution and vertical flux of fecal pellets from large zooplankton in Monterey Bay and coastal California." <em>Deep-Sea Research Part I.</em></p></div>
BONGO - Zooplankton
<div><p><strong>Sample Analysis:</strong><br />
Samples were split multiple times using a Folsom splitter. Specific taxa were identified and enumerated in one or more splits using a dissecting microscope. Equivalent spherical diameter (ESD) was estimated from length and width and assuming a geometric shape for discretely sized taxa (<em>Calanus pacificus</em> adult females, adult males, and fifth copepodites: C.pac AF, AM, C5; <em>Metridia pacifica</em> adult females: M.pac AF; <em>Euclanus californicus</em> adult males, adult females, and fourth and fifth copepodites: E.cal AF, AM, C4,C5). For other taxa (other large cops, euphausiids, and small zooplankton), mean ESD was calculated when present. Mean volume was calculated from mean ESD for each taxon using the equation ⅙π (mean ESD)<sup>3</sup>. Abundance of each taxon was calculated by multiplying counts by their corresponding split factors and dividing by the sum volume filtered. Mean volume was multiplied by abundance for each taxon to calculate volume in cm<sup>3</sup>m<sup>-3</sup> or ppm. Number of individuals measured and counted in each taxonomic group was retained to display where low counts produce uncertainty in calculations.</p>
<p><strong>BCO-DMO Processing Notes</strong><br />
- Generated from original file: "NH1008_BG_zoop_16sept13_jfb_no_header.xlsx" contributed by David Checkley<br />
- Parameter names edited to conform to BCO-DMO naming convention found at <a href="http://usjgofs.whoi.edu/naming-guidelines.html" target="_blank">Choosing Parameter Name</a><br />
- "BONGO_" pre-pended to Tow Id for consistency with BONGO stations tow ids<br />
- Date/Time and Lat/Lon deployed added to each record from BONGO stations to enable use in MapServer</p>
<p> </p></div>
540939
BONGO - Zooplankton
2014-11-25T10:37:38-05:00
2014-11-25T10:37:38-05:00
2023-07-07T16:10:26-04:00
urn:bcodmo:dataset:540939
BONGO net tow zooplankton abundance estimates from R/V New Horizon cruise NH1008 in Monterey Bay, near MBARI buoy M1 (36.747?N, 122.022?W); 2010 (GATEKEEPERS project)
false
Checkley, D. M., Jackson, G. A., Dagg, M. (2014) BONGO net tow zooplankton abundance estimates from R/V New Horizon cruise NH1008 in Monterey Bay, near MBARI buoy M1 (36.747?N, 122.022?W); 2010 (GATEKEEPERS project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 24 November 2014) Version Date 2014-11-24 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/540939 [access date]
false
24 November 2014
false
2014-11-24
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