Please could someone help to create a style for this journal? The closest match is Freshwater Biology (http://www.zotero.org/styles/freshwater-biology)

Here is a reference in the Freshwater Biology format:

(Austnes et al. 2009)

Austnes K., Evans C.D., Eliot-Laize C., Naden P.S. & Old G.H. (2009) Effects of storm events on mobilisation and in-stream processing of dissolved organic matter (DOM) in a Welsh peatland catchment. Biogeochemistry 99, 157–173.

but I need the following changes to be made:

1. The et al. of the citation to be in italics.

and in the bibliography:

2. The brackets around the year to be removed.
3. A full stop after the year.
4. The comma after the journal volume number replaced with a colon.

So the reference should look like this:

Austnes K., Evans C.D., Eliot-Laize C., Naden P.S. & Old G.H. 2009. Effects of storm events on mobilisation and in-stream processing of dissolved organic matter (DOM) in a Welsh peatland catchment. Biogeochemistry 99: 157–173.

Although not shown in the example above the journal name should stay in italics as it is for the Freshwater Biology format.

Many thanks!