Hippocampus
Bildarchiv(2)
Frants Lehmann (1 stamp) Karl-Heinz
Dau (1 stamp) Ben
Lee (1) Jiku
Ngando (1) Mark Towers (1)
ScotCat
Sources:
Other
Sources:
Relevant
Information:
Habitat: Inhabits
lakes, swamps and rivers. Widespread in both shallow
and deep water. Probably associated with rocky bottoms/coarse
substrates. Mostly active during the night and the
twilight hours. Juveniles may frequent exposed rocky
shores. Moderately important as a food species in
Lake Victoria, but becoming rare with the appearance
of Nile perch. Catches decreased strongly in Lake
Victoria after the lates upsurge. Predation
by lates and competition with lates
(for haplochromines) may have played a role in the
decline. A notably recovery in waters between 3m and
6m depth in Lake Victoria has been reported. Second
most important food species in Lake Edward, Congo.
Diet: Feeds on insects, crustaceans,
mollusks and fish. Some debris and vegetable matter
may also be ingested. Etymology:
The genus name Bagrus:
latinisation of bagre, which, according to
Marcgrave (1648), is a Portuguese word for catfish
used in Brazil (possibly first applied to the marine
ariid Bagre bagre). The
specific name docmak:
local name for this catfish along the Lower Nile river
delta, Egypt (also spelled dogmak and docmac).
Remarks:
The penultimate thumbnail image specimen was captured
by the image contributor in Lake Chad.
Common
Name:
Semutundu
Synonyms:
Bagrus
domac, B. docmac docmac, Silurus docmak, S. docmac,
Porcus docmac, P. docmac docmac, P. docmac niger,
Bagrus docmac, B. koenigi, B. docmac niger
Family:
Bagridae
Distribution:
Africa:
Benin, Burkina Faso, Chad, Congo Dem Rep, Egypt, Ethiopia,
Ghana, Guinea, Kenya, Mali, Niger, Nigeria, Senegal,
Sudan, Tanzania, Uganda. Type locality:
In Nilo inferiori ad Deltam.
If you would like to contribute to the monthly
factsheets with an article, information or photos, please e-mail
me. You will of course be credited for your work.
If you would like to donate any denomination
of monies to the site just click the above link button. All proceeds
will go to running the site and hopefully to keep it going for a few
years yet.