RRS Discovery D21
Cruise summary report
|Ship name (ship code)||RRS Discovery (74E3)|
|Cruise period||1968-01-14 — 1968-04-01|
|Port of departure||Plymouth, United Kingdom|
|Port of return||Plymouth, United Kingdom|
1. Continue investigations into the vertical distribution of zooplankton by a programme of day and night sampling with depth monitored opening/closing nets at a position far enough south to examine a fauna quite distinct from that examined at the Fuerteventura position.
2. Make observations at the Fuerteventura position at a different season of the year.
3. Try to discover the 'whereabouts of the faunal boundary between the 'southern' fauna and that found at Fuerteventura.
4. Make a preliminary survey of the upwelling regions of the NW African continental shelf to compare the vertical distribution of plankton in upwelling and nonupwelling areas.
|Chief scientist||Peter M David (National Institute of Oceanography)|
|Cruise report||(1.34 MB)|
|General||North East Atlantic Ocean (limit 40W)|
|Specific||Northwest African continental shelf|
|Track charts||(0.04 MB)|
|Data held at BODC|
|2 CTD/STD cast|
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column