How can I measure the stoichiometric parameters for zooplankton’s mortality in RWQM1?

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How to prevent an algal culture in liquide media from deshydratation?

While conducting an arthrospira plantensis' culture in the laboratory for thirty days, in small culrure vessels of one liter each, using light intensity of 203 µmol.m-2.s-1 we noticed an...

06 November 2019 1,327 2 View

Concrete database - Concrete experimental data ?

Hello, Does anybody have any experimental datas or concretes/mortars mix database to share. I am conducting an experimental study on concrete performances. Your help will be highly...

04 November 2019 2,730 3 View

What is the best BOD/N/P ratio for heterotrophic baterial's growth?

Stoichiometric limitation is well known in bacterial growth systems and must be taken into account while characterising an industrial effluent. I'm looking for papers that are related to that...

22 November 2018 7,768 4 View

Is there an admissible value for phytoplankton chla-carbon ratio?

In order to perform a simulation test, I first need to convert the values of algal biomass expressed as micrograms of chlorophyll a per liter found in the literature, in algae dry weight and...

09 August 2014 1,812 8 View

Is there a best practice for estimating the construction cost of waste water treatment ponds?

The soil I’m dealing with is sandy and ponds' surfaces are quite enormous 10 hectares so that, etancheification cost will be important. In this kind of situation what is the best way to estimate...

10 July 2014 7,194 2 View

Can anybody tell me how to get a tutorial about the software called Worldwide Engine for Simulation and Training (WEST)?

I'd like to train myself on the use the software called "WEST" and I've been looking for a tutorial about that software on internet but I up to now I haven't found it.

28 June 2014 8,304 2 View

What is the best way to collect zooplankton in a lagoon for valorization purposes in fish production systems? What is its cost?

Barnabas (1980) proposed a system for collecting zooplankton in lagoons using autonomous and stationary devices, for which I tried to estimate the cost of installation, but would there be another...

11 June 2014 5,996 1 View

Are stoichiometric coefficients determined on a unit mass (1g) or unit COD (1g COD) basis for their presentation in the petersen matrix?

By calculating the stoichiometric coefficients of a given process using the law of atoms and charges conservation, I found high values (323) for some stoichiometric coefficients while I...

27 April 2014 354 1 View

How can I write a sum kinetic model with interaction parameter (SKIP) associating monod type kinetic model and Edwards type kinetic model?

While studying the microbial biodegradation kinetic on a mixture of two substrates, I found that the first substrate biodegradation kinetic is well described with the Monod-type kinetic model and...

07 April 2014 8,454 2 View

How can I distinctly measure the biomass (g dry weight/liter) of cyanobacteria and algae?

I'm trying to develop a mathematical model of biochemical conversion in which I would like to estimate relative contributions of algae and cyanobacteria biomasses (g dry weight / liter weight) in...

04 March 2014 4,194 2 View

Is this a facetotecta nauplius?

This larva was captured using a plankton net in the Persian Gulf during the summer. I believe it may be a Facetotecta nauplius.

08 August 2024 3,746 4 View

What are the modern approaches to the organization and sustainable management of greenery in urbanized cities?

What are the modern approaches to the organization and sustainable management of greenery in urbanized cities? How can ecological and recreational functions be introduced into the landscape and...

23 July 2024 7,292 4 View

Is it possible to estimate population using animal footprint?

I'm trying to use cassowary footprint to estimate their population since their footprints are distinguishable from other animal on the field. is it really possible to do that? since it's really...

18 July 2024 3,729 7 View

How to count and standarize plankton on a chamber kolkwitz?

How use this chamber and standarize the data

17 July 2024 1,844 2 View

Interested in a Marine Plankton identification and discussion group ?

I have a number of unidentified microplankton organisms from nets or other marine collection efforts and would like to create a group (or join) where people can share their expertise and ask one...

30 June 2024 3,421 4 View

Using Kruskal-Wallis-Test when analyzing abundance and diversity indices?

I'm analyzing abundances from various ecological surveys. So data was collected across multiple independent years from three sites within each year. The years fall under two temperature...

26 June 2024 2,798 2 View

What are these aggregates in activated sludge flocs?

I've been working with activated sludge samples and have encountered a challenge in identifying certain structures/organisms that appear abundantly within the flocs during optical microscopy...

23 June 2024 9,584 1 View

How are Shannon Wiener values used in the Wilcoxon rank sum test?

Is it very literally subbing in shannon wiener index values instead of species abundances?

16 June 2024 4,533 5 View

How can I statistically compare shannon index values between two years?

I have six ecosystems in two substrate categories (Triplicates essentially). I have determined shannon wiener index values for each ecosystem and also for the two categories separately. I have...

16 June 2024 6,841 7 View

What Remote Sensing Software Is User-Friendly for Urban Ecology Research?

Hello everyone, Our lab is currently looking to purchase user-friendly remote sensing software, particularly for individuals without a background in remote sensing or coding. Ideally, we are...

05 June 2024 2,940 6 View