Dataset

Roundhay Freshwater Watch

Dataset by Roundhay Environmental Action Project and Friends of Roundhay Park

Dataset summary

Observations

  • 28 May 2025

    Upper Lake West by Susan Tuffin

    Nitrates and phosphates both 0. Much less algae than in April. small isolated patches. Freshwater mussels visible on bed No fountains playing. Swans, mallards, coots and seagulls.

  • 28 May 2025

    Upper Lake East by Susan Tuffin

    Nitrate and Phosphate both 0. Much less algae than April. No snails. Some water moving over waterfall after recent rain ended long dry spell. Some floating weed with the algae. Swan family with seven cygnets swimming round the lake

  • 26 May 2025

    Waterloo Lake : Concrete Ramp by the dam outlet by Mary Clayton

  • 26 May 2025

    Waterloo Lake : Landing stage by cafe by Mary Clayton

  • 26 May 2025

    Fox Wood Beck 3 by Jane Stanbury

    There was foam at the CSO outlet

  • 26 May 2025

    Great Head Becks 1 in Addyman Woods by Jane Stanbury

  • 25 May 2025

    Wyke Beck 2 by Hilary Asoko

    Fallen branches and a car tyre in the beck upstream of the sampling site.

  • 25 May 2025

    Waterloo Lake East by Christopher Holmes

    no activity in immediate area except for 1 swan.

  • 25 May 2025

    Waterloo Lake: NW Corner by Christopher Holmes

    no sign of wildlife nearby, lots of insect life in sample cup - some kind of flea or larvae moving actively.

  • 30 April 2025

    Upper Lake West by Susan Tuffin

    Nitrates less than 0.2 - Reading was 0 on Hanna meter. Lots of algae on this side. No fountains, only 2 swans and a few mallards. Lots of flying insects hovering over the water. Couldn't see any snails on this side of lake, Water a bit cloudier than usual.

  • 30 April 2025

    Upper Lake East by Susan Tuffin

    Nitrates very low - no observable colour - less than 0.2. Ammonia measured using Hanna meter - reading 0.05. Water moving slowly against flow. Only a trickle of water moving over the waterfall. Isolated patches of algae on eastern side of lake, much more on western side. First time we observed this this year. Snails and lots of hovering insects. Only two swans and some mallards. Fountains not working at all

  • 30 April 2025

    Great Head Becks 1 in Addyman Woods by Mark Baxby

  • 29 April 2025

    Waterloo Lake East by Christopher Holmes

    re phosphates - using a new brand of test for the first time - colour seemed more yellow than anything else which didn't really match anything on the scale. recorded a 0. First time ever seeming water fleas in the sample cup. midges flying low over water, no pond skaters at this location. tree litter on surface, possibly from nearby sycamore. Lots of people out fishing - also motor boat and a kayak class nearby. Ducks and swan in water.

  • 29 April 2025

    Waterloo Lake: NW Corner by Christopher Holmes

    re phosphates - using a new brand of test for the first time - colour seemed more yellow than anything else which didn't really match anything on the scale. recorded a 0. First time ever seeming water fleas in the sample cup. pond had very active insect life - many pond skaters, midges flying low over water. Lots of people out fishing - some local kids were at the test spot and reported seeing a dead fish away near the boathouse (same body of water but maybe 800 meters away). I've never seen a fish in the water.

  • 28 April 2025

    Wyke Beck 2 by Hilary Asoko

    Lots of wild garlic. Clouds of small insects above the water surface.