NDLI: Alternative Reproductive Tactics in the Shell-Brooding Lake Tanganyika Cichlid Neolamprologus brevis

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Alternative Reproductive Tactics in the Shell-Brooding Lake Tanganyika Cichlid Neolamprologus brevis

Content Provider	Semantic Scholar
Author	Ota, Kazutaka Aibara, Mitsuto Morita, Masaya Awata, Satoshi Hori, Michio Kohda, Masanori
Copyright Year	2012
Abstract	Alternative reproductive tactics (ARTs) are found in several Lake Tanganyika shell-brooding cichlids. Field studies were conducted in the Wonzye population to examine reproductive ecology and ARTs in the Lake Tanganyika shell-brooding cichlid Neolamprologus brevis. We discovered that this fish occurred in both rocky- and sandy-bottom habitats, but in rocky habitats, brood-caring females exclusively occurred in shell-patches that another cichlid species created. All N. brevis of both sexes in the patches were sexually mature, whereas immature males and females with unripe eggs were found frequently in sandy-bottom habitats. Males in sandy-bottom habitats were smaller, but fed more frequently and were in better somatic condition than males in the patches. Similar tendency was found in females. This indicates that N. brevis uses different habitats depending on the stage of its life history, with migration from sandy-bottom habitats to the shell-patches for reproduction. Males in the patches exhibited different behavior patterns: floating above the patches and lying in the patches. The former was larger, more aggressive, and invested less in gonads (relative to body size) than the latter. These results accord with those of other shell-brooding Lake Tanganyika cichlids with ARTs, and they therefore suggest the presence of ARTs in N. brevis.
File Format	PDF HTM / HTML
DOI	10.1155/2012/193235
PubMed reference number	22888463
Journal	Medline
Volume Number	2012
Alternate Webpage(s)	http://www.morita.lab.u-ryukyu.ac.jp/publication/wp-content/uploads/2013/08/Ota-et-al.-2014_Nbrevis.pdf
Alternate Webpage(s)	http://ftp.ncbi.nlm.nih.gov/pub/pmc/ce/6c/IJEB2012-193235.PMC3408672.pdf
Alternate Webpage(s)	https://doi.org/10.1155/2012%2F193235
Journal	International journal of evolutionary biology
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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