All aspects of fish biology | Contact experts in Ichthyology to get answers
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Questions related to Ichthyology
Recently I took some photos of this catfish in a cave in the northern Peruvian Andes. Can anyone identify the Species, Genus or Family? Thank you very much ! Stefan
10 October 2016 4,999 5 View
An article stated this:Addition of a little amount of NaCl in the ambient medium especially in the case of tilapias, might be of advantage, but the system has to be sufficiently modified since...
10 October 2016 2,564 3 View
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10 October 2016 764 4 View
Can anyone help to identify the attached otolith, fish scale ( may same species) sorted from oceanic squid stomach ?
23 September 2016 5,304 3 View
In the area around the Isthmus of Santa Catalina Island Rock Wrasse (Halichoeres semicinctus) has been observed as a cleaner fish. There are not a lot of Senoritas here at this moment and the Rock...
21 September 2016 3,679 7 View
Analysis which won't kill fish, to be clearer. For example: gastric lavage to study feeding habits or electrofishing to collect individuals.
09 September 2016 6,385 3 View
It has layers like an onion and in the center its a small hard pearl-like structure.
09 September 2016 9,358 12 View
I am working on fish bacteriology band presently facing problems in analysis of SEM photographs
09 September 2016 7,610 2 View
This fish died and I dissected it to do a post mortem. However, i'm not sure what is wrong with this fish. The gills looks kind of like being infected by something. Does the internal organs looks...
24 August 2016 9,052 4 View
I have a historical collection of otoliths mounted in both 1,2-dichloroethane and cytoseal which I'd like to remove for detailed shape analysis. I've seen toluene recommended online but can't find...
23 August 2016 9,572 3 View
08 August 2016 5,836 2 View
This specimen was caught near Pondycherry coast which has hind legs. It came in the local news paper and the local curious to know what species it is? I have attached photos of the fish and the...
08 August 2016 4,286 8 View
Dear all,I am currently working on the gut content of diverse fish species and found this larvae in a Ameiurus melas stomach. I know so far about the following fish species in the pond:Ameiurus...
08 August 2016 8,411 7 View
Caught in Flemish Cap, Northwest Atlantic. Many thanks and best regards.
08 August 2016 2,621 17 View
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08 August 2016 5,413 12 View
04 August 2016 8,376 16 View
Sea Animals: Zoology: Fishes. Systematic Taxonomy
28 July 2016 6,962 10 View
Looking for information on the relationship of fish eviscerated weight to whole fish weight?
08 July 2016 3,192 3 View
The migratory patterns of Rhincodon typus is very interesting to me and I have read that satellite tagging is the method typically used when tracking their movements. However, I would like to know...
08 July 2016 3,656 2 View
07 July 2016 903 11 View
Does anyone recognize this species? It was caught in a lagoon of northern Italy. Unfortunately we have not the specimen. thank so much Nicola
07 July 2016 6,758 4 View
07 July 2016 3,660 3 View
07 July 2016 8,741 2 View
In particular, I am interested in those cases in which two (or more) morphologically distinct morphotypes (with no intermediate forms known to date) are not reciprocally monophiletic
07 July 2016 2,810 2 View