Great question but I’m afraid we don’t how many there are of us exactly. We are one of a very small number of species found all over the world so there are likely very, very many of us indeed! We also live too deep to be caught by the majority of fishing boats so luckily we aren’t affected too much by the effects of fishing.
We are also very good at living in the difficult conditions of the deep sea and that allows us to live almost anywhere in the deep sea we want. Having our genome sequenced would be an amazing way at looking how we live in the deep sea. We can take this information to better understand how animals react to climate change and this will be very important for us to be able to protect the animals in the oceans.