Some handy advice from oxford university on fonts used in Poster making...

Font Sizes for Academic Posters

Posted on October 21, 2009 by David Baker

Question

What font size should I use when I am creating an academic poster?

Answer

There are two criteria for text on a poster:

• Text on the poster must be readable from a distance of a metre or so
• Restrict your word count to only a few hundred words. I recommend 600-800

Taking those together, I suggest the following font sizes are a good starting point:

Titles 72+
Sub-titles 54+
Text 30+
Sub-text 20+

Obviously the actual font used can effect this. I tend to keep to a standard sans-serif font such as Arial or Helvetica (or my favourite Trebuchet). The values are, as I say, a starting point and will need to be changed (usually increased) to suit the design of the poster.

Original post:
https://blogs.it.ox.ac.uk/itlp/2009/10/21/font-sizes-for-academic-posters/

Study area

NE Atlantic Semount depths

Important information for working out which oceanogrphic factors might influence larval transport. Depths are measures in metres below sealevel:

Feature	Summit (m)	Base (m)
Anton Dohrn Seamount	521	2100
Bill Bailey Bank	90	1000
Faeroe Bank	70	1000 a couple of 1500 basins
George Bligh Bank	80	1000 RH Basin 1500 RT
Hatton Bank	500	1000 RH Basin 2500 N side
Hebrides Terrace Seamount	100	1500 E side, 2200 W side
Lousy Bank	70	1350
Rockall Bank	0	1000 ledge, 2500 RT deepest, 1000 RH Basin
Rosemary Bank	321	1550 + moat

Oceanography glossary

Baroclinic - a stratified fluid where the gradients of pressure and density are misalligned. Instability of broclinicity results in vorticity (eddies).

Barotropic -a stratified fluid where the gradients of pressure and density are alligned ( isobaric surfaces are also isopycnal and isothermal, baroclinic vector is zero and motions of fluid are strongly constrained)

Geostrophy -currents flowing parallel to isobars as a result of the coriolis force balancing the pressure gradient force. A geostrophic flow may be barotropic or baroclinic.

Halocline - the boundary (area of steepest gradient) separating two watermasses of different salinity in a stratified fluid

Internal waves - gravity waves occuring along pycnoclines. Can vary vastly in amplitude and frquency. Can be heightened by the lower water mass interfacing with rough topography.

Kelvin-Helmholtz instability - breaking internal waves, these occur when the Richardson number (the ratio of potential to kinetic energy) of a pycnocline drops below 0.25 (i.e. where the kinetic energy is high enough to break surface tension)

Pycnocline - the boundary (area of steepest gradient) separating two water masses of different density in a stratified fluid (may also be a halocline and/or thermocline)

Permanent Pycnocline - the boundary (area of steepest stable density gradient) which separates the upper waters where surface mixing occurs, and lower waters. This can restrict transport of nutrients between upper and lower layers and can inhibit the vertical migration of plankton. This can be diffused by shear produced turbulence, creating areas of upwelling.

Thermocline - the boundary (area of steepest gradient) separating two water masses of different temperatures in a stratified fluid

Seamounts - Online Resources

Might be worth noting, in case a source of data or a suppository for data post PhD

SeamountsOnline
http://seamounts.sdsc.edu/#

Adata portal for species record locations on seamounts workd wide. In UK/Irish waters they have data for:
Anton Dohrn
Rosemary bank
Hatton Bank
George Bligh Bank
Lousy Bank
Bill Bailey's Bank
All species record seem to be Lophelia pertusa or fish. Some unknow scleractinians. Most records taken from the literature, and many from the 18th centuary. Needs updating!


SeamountCatalogue
http://earthref.org/SC/#top

A flash map of the worlds seas with physical data including multibeam compiled for 1800 seamounts.
Records in this region:
Anton Dohrn - no multibeam
Hebrides Terrace - no multibeam
George Bligh Bank -1 multibeam file 2002
Bill Bailey's Bank - 2 multibeam files 1990, 2002
Lousy Bank - 2 multibeam files 1990, 2002
Faeroe Bank - 3 multibeam files 1990, 2002, 2002
Rosemary bank - 32 multibeam files 2003 (1x 2002)
(All in .mb format)

Connectivity definitions

This is skimmed straight from the WHOI benthic ecology and nearshore oceanography lab website and is rather helpful for straightening out definitions of phrases, thanks to them:

Larval transport

"Larval transport is defined as the horizontal translocation of a larva between points x1,y1 and x2,y2, where x and y are
horizontal axes, say, perpendicular and parallel to the coastline. In larval transport, only the spatial dimensions matter.
Although this definition ignores the vertical axis (z) for simplicity, this dimension is critical for larval transport"

(See Pineda, Hare and Sponaugle, 2007)

Larval dispersal

"Larval dispersal refers to the spread of larvae from a spawning source to a settlement site. This definition is consistent with the terrestrial literature (natal dispersal in Clobert et al., 2001; Begon et al., 2006) that describes seed dispersal as the probability density function of the number of seeds versus distance from the adult source (i.e., the dispersal kernel) (Nathan and Muller-Landau, 2000; see Gerrodette, 1981, for a rare marine example)."

(See Scheltema, 1986 and Pineda, Hare and Sponaugle, 2007)

Population connectivity

"Population connectivity has been defined as the exchange of individuals among geographically separated subpopulations...By this definition, if the exchange is measured at the time of settlement, connectivity is essentially larval dispersal from one population to another"

(See Cowen et al., 2007, Oceanography, and Pineda, Hare and Sponaugle, 2007)

Reproductive population connectivity

The dispersal of individuals among subpopulations that survive to reproduce (see Pineda, Hare and Sponaugle, 2007)