Dr Stefan Theisen

University of Rostock · Professorship for Aquaculture and Sea-Ranching (AQ)

Dear colleagues,

when describing and naming a new species, many authors make a mistake, they postulate a malformed suffix.

E.g., the species Pseudempleurosoma guanabarense Carvalho & Luque, 2012 was originally named Pseudempleurosoma guanabarensis in its species description.

But because of the latin or greek grammar, the "-sis" is not correctly fitting to "-soma". Therefore, the scientific community declared the originally chosen name a malformed suffix, says the name is unaccepted, and changed the species name to the grammatically correct "-se" (without a publication by the way).

So the question is: When describing and naming a new species, what are the correct grammatical rules for either latin or greek names? Probably it is just the declination? But how can I know if a genus name is either a, o, u or another declination type? Are common rules applicable? Do I need a latin and a greek dictionary to check the declination and the sex/gender masculinum, femininum, neutrum?

I used to learn latin in school, however, it's still difficult for me.

Thank you, Yours,

Stefan

Dear colleagues,

German libraries, universities and the internet seem not to be able to provide following two Indian/Pakistani papers, both Bilqees et al., 2003 & 2005 (and Indian/Pakistani universities do not respond to mails):

Bilqees, F. M., Hadi, R., Khatoon, N., Muti-ur-Rahman, & Perveen, S. (2009).

Qadriana otolithi n.sp., (Hemuridae: Dinurinae Looss, 1907) from the fish Otolithus argenteus (Sciaenidae) of Karachi coast, Pakistan. International Journal of Biology and Biotechnology, 6, 109-111.

Bilqees, F. M., Khatoon, N., & Hadi, R. (2005).

A new species of the genus Stromaturus Bilqees & Khatoon, 2003 from a fish, Otolithus argenteus of Karachi coast. Journal of Experimental Zoology India, 8, 435-439.

Dear colleagues,

can anybody provide the email address for Deepa Sahai and/or H.D. Srivastava? They (used to) work at University of Allahabad, India. I have a scientific question on Indian fish parasitic Digenea, but cannot find their contact data.

Thank you very much,

Yours,

Stefan Theisen

Keywords: Digenea, trematoda, teleost fish, India

Dear colleagues,

it is impossible for me to find her email adress contact data, can anybody provide it to me please?

Regards from Germany,

Yours,

Stefan

Hello,

I want to organize a plate reader and the colometric chemicals for water analysis.

Can you recommend methods for water analysis of ammonium, nitrite, nitrate, phosphate, salinity, turbidity, conductivity, as well as for micro - and macro-nutrients in plant nutrition, such as potassium, calcium, magnesium, sulfur, chlorine, iron, manganese, zinc, copper, boron, molybdenum? What are the methods for nutrient analysis of e.g. raw protein, various amino acids, crude fat, various fatty acids (E.g. n-3, n-6), carbohydrates, NFE, ash etc?

 

In particular the preparation of the samples (comes from aquaculture, aquaponic and fish body analysis) is of our interest.

Especially what calibration curves should be created and which reagents must be used (company?).

We would also like to know the reagents' prices to do a cost planning.

Thank you very much,

Stefan Theisen