— 150 
ead 
STATION & 
(52 species) 
THe 52° g.. 126° 07% W. Feb. 28, 1929 
RI ARR ANF Ro en INA GANAS Wits tomer BPE SN ier 2 VGN AUNT ah Pg ai 7. rh Cone ne Ae 
Depth “or tow, m 
Temperature, Ce. 
Salinity, o/oo 
Volume of tow, ~ 
oe ssieiiico st colcacattselat iebehadan siesabinieiie 
| Acartia danae 
Acrocalanus gracilis 
monachus 
Calanus minor 
Calocalanus pavo 
styliremis 
| Candacia bispinosa 
| norvegica 
simplex 
| truncata 
| Centropages calaninus 
Copilia quadrata 
| Corycaeus crassiusculus 
tongistylis 
speciosus: 
typicus 
'Eucalanus attenuatus 
| crassus: 
Geleeeaahchihe acuta 
marina 
'Euchirella pulcnra 
'Farranula carinata 
| curta 
gibbula 
rostrata 
| 
BOR IR ane de SECA COS Pp 
ce 
were se 
Bot tom Sic ie 3631 Me. 
NHRPHHHHREAWHA! 
FHOMHHHANHQ20 
Depth or ‘tow,. m 
Density, OtP. 
Hydrogen ion pH 
Tength of tow,.miles 
Labidocera detruncata 
| Dubbockia squillimana 
Lucicutia flavicornis 
Mecynocera clausi 
| Megacalanus longicornis 
| Miicrocalanus pusillus 
pygmaeus: 
| Microsetella rosea 
|Neocalanus robustior 
,Oithona attenuata 
| plumifera 
Similis 
‘Oncaea conifera 
| minuta 
venusta 
|Paracalanus parvus 
'Pontellina plumata 
| Pseudocalanus minutus 
|Rhinecalanus cornutus 
nasutus 
pennee tts auronitens 
metallina 
'Scolecithrix danae 
‘Temora discaudata 
\Undinula darwini 
Pe EEE tem se aan I OP RI Is SNE MR RAP LTE DER RS SAAN TOE HES 
z peccenaanl ‘ Ae eh Dak ce RE ITNT 
LEA IEA UAB A lg hE Ne cn IC Pa Aa nl A ing Oe Se OE. PNEtnnemnge eae 
MWR RHHHANAR ANH EHHOAHRPOHNSY 
| 
|Pachos dae Die ri 
7 | 
De RT, lat Uy Wak SR PP RY COI EB AN EERO @ eed a Monae 
\Undeuchaeta plumosa— 
Mi ee eit i as Ni 8A SAY AED E NINO EAS FS Lea OS, I NE ee LEON NOOSE FE, 
OER ete Pitt ee: mea 
REMARKS. Again the temperature, salinity and hydrogen ion were high and 
did not change. Twenty species were found in the surface tow and forty- 
eignt species in the 50-meter net... Thirty-six species: (70%) were present 
in one tow and not in the otner and sixteen species were found in both towse 
The 50 meter tow was four and a half times as long as the surface tow but 
nad only twice the volumes. The same genera es at Station 81 together 
with many others were confined to the deeper tow, and the same genera were 
divided between the two tows Only a single spevinen of Candacia was 
present at the surface, all the others of the four species of thes¢ CHO 
geness appearing only in the 50-meter tow- Contrary to expectation the 
Single specimen of Undeuchaeta was round at the surface rather than in the 
deeper towe 

