Yesterday, March 16th (2022), a new batch of frogspawn was spotted in the office pond. This spawning has occurred a fortnight after the first frogspawn was observed. Team members at Everything Dinosaur think it is unusual for there to be such a protracted spawning season for the frogs in our area (Rana temporaria).

A new batch of frogspawn on March 16th 2022.
The newly laid frogspawn has been highlighted with a red circle. It is pleasing to note that such a large amount of frogspawn has been laid, indicating a healthy frog population.

2022 Spawning Season

The first frogspawn was observed on the morning of March 2nd, the following day much more frogspawn was laid and team members counted as many as seven frogs in the pond.

The exact amount of frogspawn is difficult to calculate as it tends to congeal into a single mass (making predation and consumption difficult). However, it was estimated on the 3rd March that perhaps seven or eight batches of spawn had been produced. The frog species is the Common frog (Rana temporaria). In 2021, frogs spawned around the 11th of March, in 2020, the spawning occurred around the 22nd of the month. Team members have kept a record of the time of spawning over the last decade or so, for example, in 2018 frogspawn was spotted on the 17th of March, whilst in 2017 spawning occurred six days earlier.

The frogspawn laid on the 16th was produced 14 days later than the first batch. We are not sure why spawning has taken place over two weeks, we have not recorded this protracted spawning previously.

More frogspawn laid in the office pond (16th March 2022).
A closer view of the newly laid frogspawn discovered on Wednesday 16th March. The first frogspawn was spotted on the morning of the 2nd of March, on the 3rd of March several more batches of eggs were laid.

It is pleasing to note that such a large amount of frogspawn has been laid. This indicates a healthy frog population in the local area.

The timing of events such as seasonal spawning can be used as an indicator of climate change, it is likely that as our planet continues to warm events such as frogs spawning will occur earlier in the spring.

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