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 Rhithrogena germanica - Marchbrown - Martovka

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Mixmaster
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Rhithrogena germanica - Marchbrown - Martovka Empty
PočaljiNaslov: Rhithrogena germanica - Marchbrown - Martovka   Rhithrogena germanica - Marchbrown - Martovka EmptyČet 21 Jan 2010, 14:12



Martovka
( Marchbrown)


(Rhithrogena germanica )


Ime ovog insekta je vrlo dobro poznato svim mušičarima. Ovo je najpoznatji predstavnik grupe jednodnevki koja, po ponašanju nimfi, nosi naziv "Stone Clingers". Njihove nimfe se ćvrsto drže ispod krupnog kamenja, obično u brzoj vodi planinskih reka. Martovka je veoma krupan predstavnik ove grupe, koja uglavnom pripada familiji Heptageniidae. Osobina jednodnevki iz roda Rhithrogena da se presvlače u subimago na otvorenoj vodi, čini da mušičarima budu najzanimljivije od svih srodnika....








Nastaviće se...


Poslednji put izmenio Mixmaster dana Ned 10 Maj 2015, 08:34, izmenio ukupno 4 puta
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Madjoni
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Rhithrogena germanica - Marchbrown - Martovka Empty
PočaljiNaslov: Re: Rhithrogena germanica - Marchbrown - Martovka   Rhithrogena germanica - Marchbrown - Martovka EmptyPet 22 Jan 2010, 10:40

Fantastična slika Mixe....oće li taj nastavak scratch lol!
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PočaljiNaslov: Re: Rhithrogena germanica - Marchbrown - Martovka   Rhithrogena germanica - Marchbrown - Martovka EmptyPet 22 Jan 2010, 11:09

Hoće, ali sačekaću neko vreme da još neko napiše nešto o iskustvima i susretu sa najčešće pominjanom
jednodnevkom na domaćim forumima. Možda ju je neko i fotografisao. Njen subimago izgleda ovako
(slika sa Interneta):

Rhithrogena germanica - Marchbrown - Martovka Rhithrogena_germanica_subimago_on_Equisetum_hyemale--mayfly-486x600
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Rhithrogena germanica - Marchbrown - Martovka Empty
PočaljiNaslov: Re: Rhithrogena germanica - Marchbrown - Martovka   Rhithrogena germanica - Marchbrown - Martovka EmptyPet 22 Jan 2010, 21:00

Evo i od mene par slika sa Sanice...

Rhithrogena germanica - Marchbrown - Martovka RSCN9920

Rhithrogena germanica - Marchbrown - Martovka Baja
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Rhithrogena germanica - Marchbrown - Martovka Empty
PočaljiNaslov: Re: Rhithrogena germanica - Marchbrown - Martovka   Rhithrogena germanica - Marchbrown - Martovka EmptySub 23 Jan 2010, 08:50

The post about Rhithrogena Germanica is not translating very well.

Are the posts saying the photographs show the nymph of R.germanica?

I am 100% sure the attached photograph shows the nymph of R.germanica - in most years we have it in large numbers on my home river .
Prevod:ne mogu da prevedem lijepo post o Rhithrogena Germanica.
Dali poruke iznad kažu da fotografije prikazuju nimfu R. germanica?
100% sam siguran da moja priložena fotografija prikazuje nimfu R.germanice-u većini godina mi ih imamo veliki broj na mojoj domaćoj rijeci.

Rhithrogena germanica - Marchbrown - Martovka 24c6zk6

In the UK and on my home river there are two species of Rithrogena - R.germanica and R.semicolorata.

The single dark mark that is shown on each femur in my photograph is one of the key factors for the ID of Rhithrogena. This mark is also presant in the dun (sub-imago) and spinner (imago).
Prevod:U UK i u mojoj rijeci postoje dvije vrste Ritrogenije-germanica i semicolorata.
Jedan(jedinstveni) tamni znak na svakom femuru(gornji dio noge,što se jasno vidi na slici) na mojim fotkama je jedan od klučnih faktora za identifikaciju Ritrogena.
Znak se takođe nalazi na imagu ili subimagu.
Ray
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Rhithrogena germanica - Marchbrown - Martovka Empty
PočaljiNaslov: Re: Rhithrogena germanica - Marchbrown - Martovka   Rhithrogena germanica - Marchbrown - Martovka EmptySub 23 Jan 2010, 09:39

Aha momci Čika Rej je u igri Laughing
Čini mi se da se ne slaže sa vašim fotkama nešto baš Laughing


Translation:uncle Ray is on this,beware Laughing
I think that he dont approve your photos Laughing
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Rhithrogena germanica - Marchbrown - Martovka Empty
PočaljiNaslov: Re: Rhithrogena germanica - Marchbrown - Martovka   Rhithrogena germanica - Marchbrown - Martovka EmptySub 23 Jan 2010, 09:51

Madjoni
Thanks for the warming up the debate Rolling Eyes Rolling Eyes Rolling Eyes

Ray
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Rhithrogena germanica - Marchbrown - Martovka Empty
PočaljiNaslov: Re: Rhithrogena germanica - Marchbrown - Martovka   Rhithrogena germanica - Marchbrown - Martovka EmptySub 23 Jan 2010, 09:59

Ray Lockyer ::
Madjoni
Thanks for the warming up the debate Rolling Eyes Rolling Eyes Rolling Eyes

Ray
Dont happy be vory Laughing Laughing Laughing
I am just joking.....dont vory mate,You are our very good friend and forum is all about debate.
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Rhithrogena germanica - Marchbrown - Martovka Empty
PočaljiNaslov: Re: Rhithrogena germanica - Marchbrown - Martovka   Rhithrogena germanica - Marchbrown - Martovka EmptySub 23 Jan 2010, 10:20

Meni se čini da uvažena gospoda Ado i Ray nisu postavili slike samo vrste Rhithrogena germanica.
Na Adovoj drugoj slici je jednodnevka iz veoma sličnog i rasprostranjenijeg roda Ecdyonurus, čije prestavnike većina balkanskih mušičara naziva martovkama. To nije čudno, jer su ti insekti izgledom veoma slični i imitiraju se istim muvama. Postoji jedan drugi, veoma važan razlog da ih ipak razlikujemo, ali o tome ćemo tek da pišemo...
Ray je pogrešio. Na njegovoj slici je nimfa najrasprostranjenije vrste roda Rhithrogena - semicolorata - Olive Upright. Vrlo ju je lako razlikovati od R. germanica - martovka izgleda kao džin pored nje.

For Ray:Mr.Ray, you are bit wrong .Your fly is Rhitrogenia - semicolorata - Olive Upright. It is easy to distinguish germanica and semicolorata.Germanica is like the giant next to semicolorata.
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Rhithrogena germanica - Marchbrown - Martovka Empty
PočaljiNaslov: Re: Rhithrogena germanica - Marchbrown - Martovka   Rhithrogena germanica - Marchbrown - Martovka EmptySub 23 Jan 2010, 18:21

Hi Mr. Mixmaster
The automatic translator is not working very well on this post, so I apologies if my understanding of what you have written is not correct.

First I think we both are saying that the photo by Aldo is an Ecdyonurus of species, pointing the rear projections are very clear on the pronotum (last segment on thorax) - these are present in Ecdyonurus and not in Rhithrogena.
Second I think we both agree that my photo is of a Rithrogena species.
Third I think we are agreeing that Rithrogena Germanica nymphs are larger (longer) than Rhithrogena semicolorata.
So at least we agree on somethings. : lol:
Both R.germanica and R.semicolorata are found in my home river (they are the only 2 species of Rhithrogena present in the UK)
The scientific key I use to identify the nymphs states that it is not possible to visually separate the two species - R.germanica and R.semicolorata appear anatomically identical.My experience is that at any time in the year, R.germanica nymphs are much bigger and darker in color than those of R.semicolorata.
In the UK typical size of the adult R.germanica is 12 to 16 mm and river on my 13 - 15mm and main hatch is between end of March and end of April (and occasionally May).In both the UK and my river typical size of the adult R.semicolorata is 10 - 12 mm. and main hatch is between mid May and end of June.
My photograph of theR.germanica nymph was taken on 17 March 2009, it already was 13 mm long and very mature, almost ready to hatch, and already
bigger (longer) than the maximum size of R.semicolorata. On the same day I also collected a nymph of R.semicolorata (photo below) and you can see that it
is only 6 mm long and not very mature.

This is the basis of my conclusion that the first photo is of R.germanica and my second is R.semicolorata - I hope it convinces you also.

Ray

Rhithrogena germanica - Marchbrown - Martovka 1041euv


Poslednji izmenio Ray Lockyer dana Ned 24 Jan 2010, 08:45, izmenjeno ukupno 1 puta
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Rhithrogena germanica - Marchbrown - Martovka Empty
PočaljiNaslov: Re: Rhithrogena germanica - Marchbrown - Martovka   Rhithrogena germanica - Marchbrown - Martovka EmptySub 23 Jan 2010, 22:29

Izvini Ray - ti si u pravu! Na mojoj prvoj slici nije Rhithrogena germanica.
Napravio sam glupu grešku, iako u svojoj entomološkoj riznici imam dovoljno slika nimfi iz roda Rhithrogena.

Rhithrogena germanica - Marchbrown - Martovka Rhithrogena

Sorry Ray - you're right! On my first picture isn't Rhithrogena germanica. I made stupid mistake, athough
in my entomological treasury i have enough pictures of Rhithrogenas.
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Rhithrogena germanica - Marchbrown - Martovka Empty
PočaljiNaslov: Re: Rhithrogena germanica - Marchbrown - Martovka   Rhithrogena germanica - Marchbrown - Martovka EmptySub 23 Jan 2010, 22:47

Hi Mixmaster
There is no need to be sorry - between us we have now got it right.

I have a lot to learn from you.

Ray

Prevod:pozdrav Mix
nema potrebe da ti bude žao-između nas smo usaglasili kako treba.
Mnogo sam naučio od tebe.
Rej
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Rhithrogena germanica - Marchbrown - Martovka Empty
PočaljiNaslov: Re: Rhithrogena germanica - Marchbrown - Martovka   Rhithrogena germanica - Marchbrown - Martovka EmptyČet 18 Mar 2010, 22:55

Last year the March Brown (Rhithrogena Germanica) appeared on the 5th March on my home river, this year I have not seen any yet -
probably due to the very cold winter we have had in the UK. Plenty of nymphs can be found so they will come. In some years they do
not appear until the middle of April.

Here is a photograph of a small dun (sub image) from 2008 - hope you like it.

Ray

Rhithrogena germanica - Marchbrown - Martovka 715u2x
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Rhithrogena germanica - Marchbrown - Martovka Empty
PočaljiNaslov: Re: Rhithrogena germanica - Marchbrown - Martovka   Rhithrogena germanica - Marchbrown - Martovka EmptyČet 08 Apr 2010, 00:00

Čistokrvna Rhithrogena germanica sa Stare planine:

Rhithrogena germanica - Marchbrown - Martovka 4501253830_8513080275
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Rhithrogena germanica - Marchbrown - Martovka Empty
PočaljiNaslov: Re: Rhithrogena germanica - Marchbrown - Martovka   Rhithrogena germanica - Marchbrown - Martovka EmptyPon 02 Maj 2011, 09:26

Slatkiši:

Rhithrogena germanica - Marchbrown - Martovka 5678684481_58b13c2255_b
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