All aspects of fish biology | Contact experts in Ichthyology to get answers
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Questions related to Ichthyology
I am looking for a model describing how the predation pressure exerted by visual predators (i.e., mainly larval fish) on a small calanoid copepod changes throughout the year. The system is a...
09 September 2014 422 4 View
The callionymid fish genus Protogrammus is represented by two closely related species living on soft bottoms at 70-300 m, with extremely restricted, but disjunct distributions: Protogrammus sousai...
09 September 2014 7,656 7 View
01 September 2014 4,603 3 View
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08 August 2014 7,009 0 View
I am particularly interested in looking at market specimens of the genus Neotrygon.
23 June 2014 10,099 2 View
Fish have various ways of depositing fat as energy reserves. Some ("fatty") species have a lot of fat deposited in their muscle tissue whereas others ("lean") species may have large liver as their...
17 June 2014 4,305 5 View
To investigate the adulteration of meat.
06 June 2014 4,995 5 View
06 June 2014 2,030 3 View
I need a key for identification of cestoda and digenean fish parasites.
06 June 2014 9,508 5 View
I think this species is Amphiprion polymnus, but I'm not sure.
06 June 2014 2,792 6 View
We are trying to find out where the young-of-the-year Aspius of lake Mälaren (Sweden) stay during their first month after hatching in the tributaries. The eggs can usually be found from around the...
06 June 2014 4,542 4 View
Could somebody recommend references for bioenergetics of zooplanktivorous and benthivorous fish? Caloric and protein-richness of food (zooplankton and benthos) is more or less equal in fish under...
06 June 2014 8,864 4 View
06 June 2014 767 6 View
So, as many of you are probably aware, there are several living groups of fish which are able to use electroreception to some degree to either passively sense the world around them or, in some...
06 June 2014 5,082 2 View
In our experience electrofishing in Greek, Cypriot and Turkish rivers, we find many very-polluted sites that are fishless; yet it seems difficult to use fish as indicators of specific pollution...
06 June 2014 3,927 4 View
What is your oppinion on the - eventually remote - possibility of finding Latimeria in the extreme SE Atlantic? After the famous story of Latimeria chalumnae and the recent discovery of L....
06 May 2014 8,654 4 View
I have been studying the numerous similiarities that the catfish and sharks have in common. I have studied the writings of Dr. D. Whitehead of Australia as he compared the Ampullae of Lorenzini...
05 May 2014 5,385 8 View
I have fish data collected with bottom trawl on a narrow continental shelf, covered with patches of mud, sand and gravel, extension more tham 100 km. The slope begins about the depth of 40-50 m....
05 May 2014 7,014 9 View
Quite recently, a rare (occasional bycatch captures only) specimen of Alepisaurus ferox was landed in Terceira Island, Azores (NE Atlantic) by a vessel from the local commercial fleet. The...
05 May 2014 7,663 0 View
I need some information on weights for marine investigations. Can you inform me - what types of weights do you use aboard research vessels at the sea? Are there any weights with resolution 0.1 g...
05 May 2014 1,559 8 View
I wonder if this species has been described in the Mediterranean lagoons or coastal areas.
05 May 2014 4,203 3 View
I am planing to assay innate immune response in common carp larvae (30 days post-fertilization).
05 May 2014 6,184 5 View
I need information about this genus, more exactly about Synchiropus splendidus, everything related to that fish; ecology, phylogeny, anatomy. I'm trying to make a description. I'll be glad if...
05 May 2014 3,251 1 View
05 May 2014 3,667 5 View