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Citizen scientists needed to help shed light on the sex life of the lugworm

Love is in the air along our coastlines and the Institute of Marine Sciences needs your help to keep an eye out for signs of passion in the lugworm population.

The lugworm, Arenicola marina, is a vital source of food for wader birds and fish as well as playing a key role in fisheries as a source of bait.lugworms1

Volunteers are being asking to keep an eye out for any signs of love within the lugworm population on sandy shores around the UK.

This species spends its life in a burrow in the sediment so opportunities to meet a mate are limited. Instead, the males release sperm which collects in “puddles” on the surface of the beach. When the tide comes in, the sperm is washed down into the burrows of the females and fertilises her eggs.

Little is known about the process, only that specific environmental conditions are needed to trigger the release of the sperm and the egg at the same time. So scientists are calling on members of the public to join them as “citizen scientists” to help fill in the knowledge gaps.

Zoe Morrall, Capturing Our Coast Project Officer, said: “Not a lot is known about lugworm reproduction and it is fascinating how the entire population of a species spawn, just for a few days every year, only when the environmental conditions are perfect.

“By continuing last year’s study, and adding temperature data loggers to some sites it means we can better understand which conditions are important for a spawning event. We will also be able to understand how climate change may affect these events. By going out for a walk on any sandy beach across the UK, members of the public can get involved and help us answer these questions.”

The study starts on the 13th October and runs until 1st December 2017 and people are asked to collect data every three days from one of 12 different sites around the UK. It should take around 45 minutes and it is an ideal way to take part in ‘hands-on’ science whilst just walking along a beach – all you have to do is download an instruction book from  and get recording.

The Spermwatch project is part of a wider conservation project called Capturing Our Coast funded by the Heritage Lottery Fund. It is a partnership led by Newcastle University and includes the universities of Portsmouth, Bangor and Hull, the Marine Conservation Society, the Marine Biological Association, the Scottish Association of Marine Sciences and Earthwatch Europe.

The South East CoCoast Team will be doing walkover survey at the following times and locations.

16th October – Stand at Blue Reef Aquarium, Portsmouth  from 10:30 – 4pm.

17th October – Hill Head (by the beach huts PO14 3QS) at 15:15

18th October – South Parade Pier, Southsea (PO4 0SW) at 16:15

19th October – South Parade Pier, Southsea (PO14 3QS) at 17:00

20th October – Hill Head (by the beach huts PO14 3QS) at 17:30

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