A renowned oceanographer told me how a plankton sampling cruise in the Western Approaches in the 1970s owed a lot to the conflicting needs of those on board.
Sampling of a summer plankton bloom was underway when the skipper announced that they were returning to port on account of having run out of bacon and milk. Having steamed east through the bloom, the scientists on board said they would do without bacon and milk and would the skipper turn west again for another pass through the bloom. Once this was accomplished, the need for a cup of tea and a bacon sandwich resurfaced and the skipper once more turned to port. Later, with another set of samples under their belts, and putting the pursuit of knowledge in front of sustenance, the scientists felt another pass was necessary and asked to turn west again.
In this way, the RV Sarsia zig-zagged through the bloom, recording maximum surface values of ~100 mgm-3 chlorophyll a
Summer bloom survey (using in situ continuous measurement of chlorophyll a fluorescence) or brown water (Karenia mikimotoi) survey in the Western English Channel and Celtic Sea (26th -30th July 1975, RV Sarsia, Pingree et al., 1976). The summer dinoflagellate bloom (calibrated chlorophyll a mgm-3, with maximum surface samples reaching values of ~100 mgm-3) is positioned to the stratified side of the Ushant and Lands End Tidal Fronts and extends to a depth of ~10 m.