Update

Today, another talk of the series "Perspectives in Oceanography" about Living light in the darknes by Dr. Michael Latz. Enjoy the lecture.



Below some additional papers to update our PhD. Students. The first is about grazing in the Arctic. Very, very interesting. Look at the detailed description of the dilution method. For those who are revising grazing values in the ocean, give a look to this data. Values are not so high as the data given by Calbet and Landry.

For those working in grazing and metabolism of polar mesozooplankton, the paper by Campbell et al. is of interest.



Finally, those working in the Oxygen Minimum Zone have to read this paper by Dr. Escribano from Chile.

More and more papers

Two more interesting papers (AOR). The first one is related to the vertical migration of sonic scattering layers. Interesting to see that Uda in 1956 also observed the effect of moonlight on the vertical position of the deep dwellers. The second is an interesting experiment about the effect of nutrients on picoplankton. This is an important paper to those working on the annual cycle of micro- nano- and picoplankton.

Interesting paper

Today, a very interesting paper about the vertical migration of zooplankton and micronekton. Exploring the literature, I found a paper describing the movements of the deep scattering layers (DSLs)in relation to illumination. The interesting thing was the observation made by the author, Hilary Moore, about the effect of the lunar illumination on the vertical distribution of the DSLs. She found that at full moon the DSLs move downward because of the increase in light at the surface layers. The most impresive is that this paper was published in 1950!! So, now, almost 60 years after, we are starting to understand the consequences of this migration. Compulsory for those interested in the lunar cycles (AOR).