Cruise inventory

RRS John Biscoe JB11

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS John Biscoe (74JB)
Cruise identifierJB11
Cruise period1991-01-11 — 1991-02-17
StatusCompleted
Port of departureStanley, Falkland Islands (Malvinas)
Port of returnStanley, Falkland Islands (Malvinas)
PurposeResearch
ObjectivesA multi-disciplinary cruise covering a wide range of multi-facet projects. The principal objectives were:
1) Studies of the vertical distribution of squid and zooplankton
2) Development of acoustic techniques to identify animals in the water column
3) To determine the growth rates and swarm characteristics of krill
4) Studies of the distribution of fish larvae and the role of fish in the pelagic community
5) Continuation of the ongoing studies of marine chemistry.
Chief scientistJonathan L Watkins (British Antarctic Survey)
ProjectMarine Biology - South Georgia
Coordinating bodyBAS
Cruise reportRRS John Biscoe JB11 cruise report john_biscoe11.pdf — access key 'C' (0.27 MB) 
Ocean/sea areas 
GeneralSouth Atlantic Ocean
SpecificSouth Georgia
Measurements 
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Description: A number of zooplankton and pigment samples were collected during the cruise. No. of samples not noted.
ZooplanktonDescription: A number of zooplankton and pigment samples were collected during the cruise. No. of samples not noted.
SestonDescription: A number of juvenile cephalopods were sampled during the cruise. No. of samples not noted.
CrustaceansQuantity: number of samples = 1
Description: A number of krill samples were caught to determine growth rates, distribution of krill and photogrammertric studies on krill swams.
Geology and geophysics 
Bottom photographyQuantity: number of samples = 1
Description: A number of krill samples were caught to determine growth rates, distribution of krill and photogrammertric studies on krill swams.