Lincolnshire and East Yorkshire's election battleground

Image copyright PA
Image caption There are marginal seats on both sides of the Humber

The 2015 general election will see some fascinating election contests from the Humber to The Wash.

I have listed a few of the battlegrounds which could make headlines in the run-up to polling day on 7 May.

Boston and Skegness

In any "normal" election, Boston and Skegness would be seen as a safe Tory constituency.

Five years ago, Conservative Mark Simmonds - who is stepping down - won this seat with a healthy majority of 12,426.

However since 2010 the area has seen a big rise in UKIP support, which many commentators have interpreted as a protest vote against immigration in this part of Lincolnshire.

Brigg and Goole

This constituency is unique as it covers parts of East Yorkshire and Lincolnshire.

Conservative Andrew Percy won this marginal seat from Labour in 2010 with a majority of 5,147.

Labour will fight to win in Brigg and Goole, but the Tories hope to hang-on.

Cleethorpes

Another seat that could decide which party forms the next government.

Conservative Martin Vickers will defend a majority of 4,298 in this North East Lincolnshire constituency.

Labour would like to win back the seat they lost in 2010, but the strength of UKIP's vote could prove to be a decisive factor.

Great Grimsby

For 38 years, this constituency was represented by the outspoken Labour MP Austin Mitchell, who is stepping down.

In 2010, Labour held the seat with a majority of 714 over the Conservatives.

Despite finishing fourth at the last general election, UKIP is targeting Great Grimsby - where the party has performed strongly in recent local elections.

Hull North

This was a Liberal Democrat target seat in 2010, but Labour's Diana Johnson was re-elected with a majority of 641.

Hull North has a large student population, which contributed to the Lib Dem bounce five years ago.

Labour are confident of holding the seat, however local Liberal Democrats insist they are down, but not out.

Lincoln

No prime minister in more than four decades has entered Downing Street without his or her party winning Lincoln.

Lincoln is a classic "bellwether" constituency, which tends to reflect the national swing between Tory and Labour.

Conservative Karl McCartney will defend a majority of 1,058 in a seat being heavily targeted by Labour.