FB-66731 http://www.fishbase.org/summary/SpeciesSummary.php?id=66731 Animalia Chordata Teleostei Perciformes/Cottoidei Liparidae Psednos Psednos cryptocaeca Stein, 2012 Haplochromis argens Not applicable 2013-01-11 2013-01-11 Goldschmidt, T. and F. Witte0 Reproductive strategies of zooplanktivorous haplochromine cichlids (Pisces) from Lake Victoria before the Nile perch boom. OIKOS 58:356-368. (Ref. 35300) de Zeeuw, M.P., M.J.P. van Oijen and F. Witte0 Two new species of zooplanktivorous haplochromine cichlids from Lake Victoria, Tanzania. ZooKeys 256:1-34. (Ref. 92860) FB-GeneralDescr-66740 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2013-01-15 19:06:58 2024-03-14 00:00:00 Biology http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=66740 Haplochromis argens is a pelagic species from the littoral and sub-littoral zone (Ref. 92860). At night the species is virtually restricted to the two upper metres of the water column; by day, the highest densities were found at two to three metres from the surface, but individuals of this species were also caught with bottom trawls over sand and mud bottoms, and in gill nets and traps near rocks (Ref. 92860).Before the ecological changes in Lake Victoria, the diet of H. argens comprised mainly zooplankton during the day; Chaoborus larvae were important at night (Ref. 92860). The current diet is unknown, but all the studied resurgent species in the Mwanza Gulf changed their diet (Ref. 92860).Haplochromis argens is a female mouth brooder (Ref. 92860). Spawning sites are located at depths less than 9 metres (Ref. 35300). de Zeeuw, M.P., M.J.P. van Oijen and F. Witte 2013 Two new species of zooplanktivorous haplochromine cichlids from Lake Victoria, Tanzania. ZooKeys 256:1-34. (Ref. 92860) FB-DiagnosticDescr-66740 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2013-01-15 00:00:00 2013-02-01 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=66740 Diagnosis: Small sized, slender (body depth less than 31% of standard length), micrognathic zooplanktivorous Haplochromis species with slightly curved to straight dorsal head profile. Relatively long and slender, mainly bicuspid, teeth in oral jaws. Premaxillary dentigerous area extending almost to caudal end of dentigerous arm. Both males and females silvery with conspicuously ivory-white lips. Three to five, generally faint vertical stripes on flank; faint traces of a dark mid-lateral band occasionally present. Males with yellow to greenish sheen on flank (Ref. 92860). de Zeeuw, M.P., M.J.P. van Oijen and F. Witte 2013 Two new species of zooplanktivorous haplochromine cichlids from Lake Victoria, Tanzania. ZooKeys 256:1-34. (Ref. 92860) FB-Morphology-66740 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2013-01-15 00:00:00 2013-02-01 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=66740 Vertebrae: 30 - 32 de Zeeuw, M.P., M.J.P. van Oijen and F. Witte 2013 Two new species of zooplanktivorous haplochromine cichlids from Lake Victoria, Tanzania. ZooKeys 256:1-34. (Ref. 92860) FB-Distribution-66740 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2013-01-15 19:56:11 2025-11-05 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=66740 Africa: Tanzanian part of Lake Victoria (Ref. 92860). de Zeeuw, M.P., M.J.P. van Oijen and F. Witte 2013 Two new species of zooplanktivorous haplochromine cichlids from Lake Victoria, Tanzania. ZooKeys 256:1-34. (Ref. 92860) FB-LifeCycle-66740 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2013-01-15 19:06:58 2024-03-14 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org//Reproduction/FishReproSummary.php?ID=66740&StockCode=57526 Haplochromis argens is a female mouth brooder (Ref. 92860). de Zeeuw, M.P., M.J.P. van Oijen and F. Witte 2013 Two new species of zooplanktivorous haplochromine cichlids from Lake Victoria, Tanzania. ZooKeys 256:1-34. (Ref. 92860) FB-TrophicStrategy-66740 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2013-01-15 21:01:06 2013-01-15 21:01:06 http://creativecommons.org/licenses/by-nc/3.0/ argens Haplochromis argens is a pelagic species from the littoral and sub-littoral zone (Ref. 92860). At night the species is virtually restricted to the two upper metres of the water column; by day, the highest densities were found at two to three metres from the surface, but individuals of this species were also caught with bottom trawls over sand and mud bottoms, and in gill nets and traps near rocks (Ref. 92860). de Zeeuw, M.P., M.J.P. van Oijen and F. Witte 2013 Two new species of zooplanktivorous haplochromine cichlids from Lake Victoria, Tanzania. ZooKeys 256:1-34. (Ref. 92860) FB-Size-66740 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2013-01-15 19:06:58 2024-03-14 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=66740 7.6 cm SL (male/unsexed; (Ref. 92860)) de Zeeuw, M.P., M.J.P. van Oijen and F. Witte 2013 Two new species of zooplanktivorous haplochromine cichlids from Lake Victoria, Tanzania. ZooKeys 256:1-34. (Ref. 92860) FB-Threats-2 http://purl.org/dc/dcmitype/Text text/html Belen Acosta 1990-10-18 00:00:00 2024-03-07 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=2 Least Concern (LC) , IUCN Grouper and Wrasse Specialist Group IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006. FB-Habitat-66740 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2013-01-15 19:06:58 2024-03-14 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=66740 pelagic; freshwater