Asa White

5 Questions 3 Answers 0 Followers

Questions related from Asa White

Statistical analysis of fish densities between contiguous river reaches?

I have fish density data (n per 100m sq) for fish populations in three river systems. Each river has a site immediately above a effluent discharge, a site immediately below it, and two further...

01 July 2019 4,605 8 View

Ordinating site, species density and environmental variables?

I have a dataset from 12 river sites which contains n/100m sq of several fish species and many environmental variables relating to habitat and water quality. I'm able to ordinate site identity...

12 June 2019 6,500 4 View

Analysis of non-parametric behaviour data?

Hi I have a dataset that I have recently analysed, and am concerned that my analysis may not pass muster. I have run a trial looking at the locomotory response of fish to a light stimulus...

25 October 2018 5,418 2 View

Does anyone recognise this aquatic coleoptera?

I have about 100 taken from a 3 minute kick sample from a chalk stream in Hampshire, UK in Oct 2016. They all measure c. 4 mmIncluded in the images is a photo of the hind leg, and photos of them...

01 August 2017 591 5 View

What ratio of phenethyl isothiocyanate to alcohol should be used in ecotoxicology experiments?

I wish to expose fish embryos to phenethyl isothiocyanate (PEITC). As an oil, I assume that I should first dissolve it in alcohol before making up assays. Does anyone know if this is the case, and...

04 May 2016 7,315 3 View