Overview

Comprehensive Description

Description

In both generations, the transverse ribs of the gill bar meet dorsally, narrowing sharply toward the ventral surface, so that they are far apart from one another ventrally. Solitary zooids: Test soft and smooth. Body elongate and cylindrical. Eight or 9 body muscles that extend rather far ventrally and are usually separated. MI to MIV converging, contiguous, or fused in the mid-dorsal line. A great variation is also found in the number of muscular fibers. Aggregate zooids: Body fusiform because of the presence of short anterior andposterior projections. Five body muscles, all of them meeting in the mid-dorsal region. Embryo between MIV and MV.
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© Census of Marine Zooplankton

Source: Census of Marine Zooplankton

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Distribution

Widespread in all three oceans from subtropical to tropical latitudes, 30 N to 30 S, following the 20 C isotherm.
 
Depth distribution: surface
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© Census of Marine Zooplankton

Source: Census of Marine Zooplankton

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Physical Description

Size

                                   
Size type: Total length     Stage: Solitary 
Length: 61 mm
Min length: 7 mm
Max length: 61 mm
Size type: Total length     Stage: Agregate 
Length: 17 mm
Min length: 2 mm
Max length: 17 mm
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© Census of Marine Zooplankton

Source: Census of Marine Zooplankton

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Ecology

Habitat

Depth range based on 67 specimens in 1 taxon.
Water temperature and chemistry ranges based on 41 samples.

Environmental ranges
  Depth range (m): 22 - 4791
  Temperature range (°C): 1.592 - 26.874
  Nitrate (umol/L): 0.166 - 40.577
  Salinity (PPS): 34.430 - 37.193
  Oxygen (ml/l): 1.970 - 6.211
  Phosphate (umol/l): 0.038 - 3.019
  Silicate (umol/l): 0.885 - 215.449

Graphical representation

Depth range (m): 22 - 4791

Temperature range (°C): 1.592 - 26.874

Nitrate (umol/L): 0.166 - 40.577

Salinity (PPS): 34.430 - 37.193

Oxygen (ml/l): 1.970 - 6.211

Phosphate (umol/l): 0.038 - 3.019

Silicate (umol/l): 0.885 - 215.449
 
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