Few species i already identified till genus level but still i have a doubt, if some one identify it could be added to the checklist
Dear Perumal,
The last one is similar to Dictyurus sp. Dictyurus purpurascens is reported from cape camorin, Tuticorin, India.
The second last one is cab be Champia parvula (C.Agardh) Harvey/ species of Champia.
Fourth one is looks like Sargassum in juvenile stage as said by Dr. CRK Reddy
Second and Third ones are Halymenia sp.
First one can be Chondrus crispus.
these are my opinion on your photographs not confirmed identification. Please refer some standard seaweed monographs to check the identification..
With Regards...
Perumal...
The first one looks like Chondrus crispus.The sixth one could be a species of Champia perhaps Champia parvula (C.Agardh) Harvey 1853
Dear Mr. Kartick,
Many respondents tells the first one as Chondrus. I'm quite curious to have the chemical analysis done. Could you please send us some dry material if available and don't mind. From the chemical analysis, we can establish its identification as well as economic utility if found it is Chondrus.
thanks for all your suggestions and the sixth one still doubt, Champia parvula algae is crimson red in colour but this one pure white in color while collected as epiphytes.
Hi Karthick, The primary identification goes like this -
1. Chondrus crispus Stackhouse (need confirmation)
2. Un-known (appears thallus is broken need better image to arrive at conclusion)
3. Neurymenia fraxinifolia (Mertens ex Turner) J.Agardh
4. Sargassum sp. (thallus looks like germling need fully grown plant for confirmation)
5. Hypnea spinella (C.Agardh) Kützing
6. Coelarthrum muelleri (Sonder) Børgesen
7. Dictyurus purpurascens Bory
Keep exploring!
Vaibhav A. Mantri
thank you mantri sir, please confirm and tell me the 5th one Hypnea spinella and 6 th one Coelarthrum muelleri or Champia sp is still doubt
Karthick,
The image of Hypnea is from under water canopy, however, you may check the characters of it with H. spinella (H. spinella specimans are generallythicker, but that should not be the sloe criteria, unless you really go about its anatomy and reproductive structures). To me the other one in question is C. muelleri, but if you have doubt check with Griffithsia opuntioides J.Agardh (which but forms smaller thallus).
Let me know, if you have doubts.
Vaibhav
Dear Dr. Karthick,
The image -6 appears to be a species of Champia C. parvula or perhaps C.salicornioides
Please look for for these features(other than for the colour which could vary due to various reasons) as given in the book "Seaweeds of India :
3 – 7 cm tall, gelatinous, segmented, mostly epiphytic , thallus closely branched with decumbent and erect branches with obtuse tips, segments barrel shaped, slightly constricted near the septa, as long as broad or much longer.
Do the branches arise from the nodal region?Could you upload a close up picture with few branches.Anatomical studies and sequence analysis could confirm its identity.
Good luck!
yes sir even me too following that "seaweeds of India" book for identification and also referring some other books for confirmation. Now i finished my Ph.D on 8th of August 2016, here in Andaman's, so collecting sample again and doing molecular studies is not possible in these remote place.
Karthick, is there any possibility for us to jointly submit the proposal?
Yes. We can help you with molecular as well as biochemical studies, more particularly, for those hitherto not been reported from Indian coast or in cases where taxonomic ambiguity persists. We have excellent infrastructure and expertise for conducting above mentioned studies if desired.
It's my pleasure to submit a joint proposal if you are interested sir
Yes, you can go a head with preparation of a joint proposal. CSIR-CSMCRI will do the molecular biology and biochemical studies where as your self can contribute to the collection and identification part of the project. We have a procedure to follow for collaborative works. You please send a formal letter of interest to the Director, CSIR-CSMCRI, and thereafter they will send you the guidelines for preparation and submission of proposal. By the way, I will not be qualifying to take any new projects as I will superannuate after two years.
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