Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
58
datasets available to search
ShareScore release 0.9.0
Dataset results
58 results for “African cichlids”
Facial and body colouration is linked to social rank in the African cichlid Astatotilapia burtoni
<p>These are raw data files for our publication studying animal colouration and behaviour in an African cichlid, <em>Astatotilapia burtoni</em>. </p> <p> </p> <p>Abstract<br>Animal colouration is important for social communication within conspecifics to signal threats to competitors or fitness to possible mates. Social status and animal colouration are covarying traits that are plastic in response to dynamic environments. In the African cichlid, Astatotilapia burtoni, body colouration and behaviour have been reported to vary with social rank. However, the nature of the interaction between these two traits is poorly understood. We hypothesise that colouration patterns could be linked to the behavioural repertoires underlying social status and situated across regions of interest on the cichlid body plan. To test this hypothesis, we generated Territorial and Non-territorial males and employed computer vision tools to quantify and visualise patterns/colour enrichment associated with stereotyped Territorial/Non-Territorial male behaviour. We report colour-behaviour interactions localised in specific areas of the body and face for two colour morphs, illustrating a more nuanced view of social behaviour and colouration. Since behavioural and morphological variation are key drivers of selection in the East African Great Rift Lakes, we surmise our data may be translatable to other cichlid lineages and underline the importance of trait covariance in sexual selection and male competition.</p>
Data from: Turbidity drives plasticity in the eyes and brains of an African cichlid
<p>Natural variation in environmental turbidity correlates with variation in the visual sensory system of many fishes, suggesting that turbidity may act as a strong selective agent on visual systems. Since many aquatic systems experience increased turbidity due to anthropogenic perturbations, it is important to understand the degree to which fish can respond to rapid shifts in their visual environment, and whether such responses can occur within the lifetime of an individual. We examined if developmental exposure to turbidity (Clear <5 NTU, Turbid ~9 NTU) influenced the size of morphological structures associated with vision in the African cichlid <em>Pseudocrenilabrus multicolor</em>. Parental fish were collected from two sites (clear swamp, turbid river) in western Uganda. F1 broods from each population were split and reared under clear and turbid rearing treatments until maturity. We measured morphological traits associated with the visual sensory system (eye diameter, pupil diameter, axial length, brain mass, optic tectum volume) over the course of development. Age was significant in explaining variation in visual traits even when standardized for body size, suggesting an ontogenetic shift in the relative size of eyes and brains. When age groups were analyzed separately, young fish reared in turbid water grew larger eyes than fish reared in clear conditions. Population was important in the older age category, with swamp-origin fish having relatively larger eyes and optic lobes relative to river-origin fish. Plastic responses during development of fish may be important in responding to a more variable visual environment associated with anthropogenically induced turbidity.</p>
Fig. 8 in Revision of the African cichlid fish genus <em><em>Ctenochromis</em></em> (Teleostei, Cichliformes), including a description of the new genus <em>Shuja</em> from Lake Tanganyika and the new species <em><em>Ctenochromis</em></em> <em>scatebra</em> from northern Tanzania
Fig. 8. Morphology of Ctenochromis Pfeffer, 1893, imaged using x-ray tomography micro CT. a. Ctenochomis pectoralis Pfeffer, 1893, paralectotype BMNH 1899.2.27.1 from Korogwe. b. C. pectoralis from the Ruvu River (part of BMNH 2021.7.15.1-3). c. C. scatebra Genner, Ngatunga &
Fig. 7 in Revision of the African cichlid fish genus <em><em>Ctenochromis</em></em> (Teleostei, Cichliformes), including a description of the new genus <em>Shuja</em> from Lake Tanganyika and the new species <em><em>Ctenochromis</em></em> <em>scatebra</em> from northern Tanzania
Fig. 7. Morphology of Ctenochromis Pfeffer, 1893.a, d, g. Oral teeth.b, e, h. Chest squamation illustrating scale-free patches. c, f, i. Cheek squamation illustrating the reduction in scale number towards the ventral section of the cheek. a–c. Ctenochomis pectoralis Pfeffer, 1893 from Korogwe (paralectotype BMNH 1899.2.27.1); d–f. C. pectoralis from the Ruvu River (part of BMNH 2021.7.15.1-3); g–i. C. scatebra Genner, Ngatunga & Turner sp. nov. from Chemka Springs (holotype BMNH 2021.7.15.4). Scale bars:
Fig. 6. a. Ctenochomis pectoralis Pfeffer, 1893, lectotype ZMH402 in Revision of the African cichlid fish genus <em><em>Ctenochromis</em></em> (Teleostei, Cichliformes), including a description of the new genus <em>Shuja</em> from Lake Tanganyika and the new species <em><em>Ctenochromis</em></em> <em>scatebra</em> from northern Tanzania
Fig. 6. a. Ctenochomis pectoralis Pfeffer, 1893, lectotype ZMH402 from Korogwe (imaged by Thilo Weddehage). b. C. pectoralis, paralectotype BMNH 1899.2.27.1 from Korogwe. c. C. pectoralis, ♂ from Ruvu River shortly after capture (part of BMNH 2021.7.15.1-3). d. C. pectoralis, ♂ from Ruvu River preserved state (part of BMNH 2021.7.15.1-3). e. C. scatebra Genner, Ngatunga & Turner sp. nov., ♂ from Chemka Springs shortly after capture (part of BMNH 2021.7.15.1-3). f. C. scatebra
Fig. 4 in Revision of the African cichlid fish genus <em><em>Ctenochromis</em></em> (Teleostei, Cichliformes), including a description of the new genus <em>Shuja</em> from Lake Tanganyika and the new species <em><em>Ctenochromis</em></em> <em>scatebra</em> from northern Tanzania
Fig. 4. Phylogenetic reconstructions of representatives of populations of Ctenochromis Pfeffer, 1893, as well as representatives of the Lake Malawi haplochromine radiation, and the Lake Tanganyika Tropheini Poll, 1986. a. Maximum Likelihood phylogenetic reconstruction based on 11 288 SNPs. b. Maximum Likelihood phylogenetic reconstruction based on 1047 basepairs of the entired NADH2 mtDNA gene. In both trees, numbers on branches indicate percentage bootstrap support, and branches with> 70% support are shown. The scale bars represent a measure of genetic distance. See Table 1 for sampling details. Collection localities are in parentheses. Samples from Nyumba ya Mungu have accessions
Fig. 5. Shuja horei gen. et comb. nov. a in Revision of the African cichlid fish genus <em><em>Ctenochromis</em></em> (Teleostei, Cichliformes), including a description of the new genus <em>Shuja</em> from Lake Tanganyika and the new species <em><em>Ctenochromis</em></em> <em>scatebra</em> from northern Tanzania
Fig. 5. Shuja horei gen. et comb. nov. a. Illustration from the original type specimen (Günther 1894). b. A freshly caught specimen collected in 2016 from the Malagarasi River, Ilagala (BMNH 2021.7.15.14). c. Radiographs of the type series (syntypes) from the Natural History Museum (BMNH 1889.1.30.13– 15). Note the prognathous jaw that distinguishes Shuja Genner, Ngatunga & Turner gen. nov. from other genera within the Tropheini Poll, 1986. Radiographs from the Natural History Museum, London
Fig. 3. Principal Component Axes 1 and 2 in Revision of the African cichlid fish genus <em><em>Ctenochromis</em></em> (Teleostei, Cichliformes), including a description of the new genus <em>Shuja</em> from Lake Tanganyika and the new species <em><em>Ctenochromis</em></em> <em>scatebra</em> from northern Tanzania
Fig. 3. Principal Component Axes 1 and 2 of morphological measurements of specimens of Ctenochromis pectoralis Pfeffer, 1893 of the type series from Korogwe, compared with specimens of C. pectoralis from the Ruvu River, and C. scatebra Genner, Ngatunga & Turner sp. nov. from Chemka Springs. The image of C. pectoralis from Korogwe is from the original description (Pfeffer 1893). Collection localities are in parentheses following the species names. In total, Principal Component Axes 1 and 2
Fig. 1 in Revision of the African cichlid fish genus <em><em>Ctenochromis</em></em> (Teleostei, Cichliformes), including a description of the new genus <em>Shuja</em> from Lake Tanganyika and the new species <em><em>Ctenochromis</em></em> <em>scatebra</em> from northern Tanzania
Fig. 1. The type locality of Ctenochromis pectoralis Pfeffer, 1893 is Korogwe, in the lower section of the Pangani River system. Collection sites of specimens of Ctenochromis for this study were Chemka Springs and the Ruvu River (which flows between Lake Jipe to the east, and Nyumba ya Mungu Reservoir to the west). A further population of Ctenochromis has been reported from Mzima Springs, in
Fig. 6. a. Ctenochomis pectoralis Pfeffer, 1893, lectotype ZMH402 in Revision of the African cichlid fish genus Ctenochromis (Teleostei, Cichliformes), including a description of the new genus Shuja from Lake Tanganyika and the new species Ctenochromis scatebra from northern Tanzania
Fig. 6. a. Ctenochomis pectoralis Pfeffer, 1893, lectotype ZMH402 from Korogwe (imaged by Thilo Weddehage). b. C. pectoralis, paralectotype BMNH 1899.2.27.1 from Korogwe. c. C. pectoralis, ♂ from Ruvu River shortly after capture (part of BMNH 2021.7.15.1-3). d. C. pectoralis, ♂ from Ruvu River preserved state (part of BMNH 2021.7.15.1-3). e. C. scatebra Genner, Ngatunga & Turner sp. nov., ♂ from Chemka Springs shortly after capture (part of BMNH 2021.7.15.1-3). f. C. scatebra sp. nov. holotype BMNH 2021.7.15.4. Scale bars: 10 mm.
Fig. 4 in Revision of the African cichlid fish genus Ctenochromis (Teleostei, Cichliformes), including a description of the new genus Shuja from Lake Tanganyika and the new species Ctenochromis scatebra from northern Tanzania
Fig. 4. Phylogenetic reconstructions of representatives of populations of Ctenochromis Pfeffer, 1893, as well as representatives of the Lake Malawi haplochromine radiation, and the Lake Tanganyika Tropheini Poll, 1986. a. Maximum Likelihood phylogenetic reconstruction based on 11 288 SNPs. b. Maximum Likelihood phylogenetic reconstruction based on 1047 basepairs of the entired NADH2 mtDNA gene. In both trees, numbers on branches indicate percentage bootstrap support, and branches with> 70% support are shown. The scale bars represent a measure of genetic distance. See Table 1 for sampling details. Collection localities are in parentheses. Samples from Nyumba ya Mungu have accessions EU753938 and EU753939 and are from Koblmüller et al. (2008).
Fig. 1 in Revision of the African cichlid fish genus Ctenochromis (Teleostei, Cichliformes), including a description of the new genus Shuja from Lake Tanganyika and the new species Ctenochromis scatebra from northern Tanzania
Fig. 1. The type locality of Ctenochromis pectoralis Pfeffer, 1893 is Korogwe, in the lower section of the Pangani River system. Collection sites of specimens of Ctenochromis for this study were Chemka Springs and the Ruvu River (which flows between Lake Jipe to the east, and Nyumba ya Mungu Reservoir to the west). A further population of Ctenochromis has been reported from Mzima Springs, in the Tsavo River system of Kenya.
Fig. 5. Shuja horei gen. et comb. nov. a in Revision of the African cichlid fish genus Ctenochromis (Teleostei, Cichliformes), including a description of the new genus Shuja from Lake Tanganyika and the new species Ctenochromis scatebra from northern Tanzania
Fig. 5. Shuja horei gen. et comb. nov. a. Illustration from the original type specimen (Günther 1894). b. A freshly caught specimen collected in 2016 from the Malagarasi River, Ilagala (BMNH 2021.7.15.14). c. Radiographs of the type series (syntypes) from the Natural History Museum (BMNH 1889.1.30.13– 15). Note the prognathous jaw that distinguishes Shuja Genner, Ngatunga & Turner gen. nov. from other genera within the Tropheini Poll, 1986. Radiographs from the Natural History Museum, London (Creative Commons Attribution License (CC BY 4.0)). Scale bars: 10 mm.
Fig. 7 in Revision of the African cichlid fish genus Ctenochromis (Teleostei, Cichliformes), including a description of the new genus Shuja from Lake Tanganyika and the new species Ctenochromis scatebra from northern Tanzania
Fig. 7. Morphology of Ctenochromis Pfeffer, 1893.a, d, g. Oral teeth.b, e, h. Chest squamation illustrating scale-free patches. c, f, i. Cheek squamation illustrating the reduction in scale number towards the ventral section of the cheek. a–c. Ctenochomis pectoralis Pfeffer, 1893 from Korogwe (paralectotype BMNH 1899.2.27.1); d–f. C. pectoralis from the Ruvu River (part of BMNH 2021.7.15.1-3); g–i. C. scatebra Genner, Ngatunga & Turner sp. nov. from Chemka Springs (holotype BMNH 2021.7.15.4). Scale bars: 1 mm.
Fig. 2. a in Revision of the African cichlid fish genus Ctenochromis (Teleostei, Cichliformes), including a description of the new genus Shuja from Lake Tanganyika and the new species Ctenochromis scatebra from northern Tanzania
Fig. 2. a. Ruvu River where specimens of Ctenochromis pectoralis Pfeffer, 1893 were collected. b. Chemka Springs where specimens of C. scatebra Genner, Ngatunga & Turner sp. nov. were collected. See Table 1 for collection details.
Fig. 8 in Revision of the African cichlid fish genus Ctenochromis (Teleostei, Cichliformes), including a description of the new genus Shuja from Lake Tanganyika and the new species Ctenochromis scatebra from northern Tanzania
Fig. 8. Morphology of Ctenochromis Pfeffer, 1893, imaged using x-ray tomography micro CT. a. Ctenochomis pectoralis Pfeffer, 1893, paralectotype BMNH 1899.2.27.1 from Korogwe. b. C. pectoralis from the Ruvu River (part of BMNH 2021.7.15.1-3). c. C. scatebra Genner, Ngatunga & Turner sp. nov., holotype BMNH 2021.7.15.4. Scale bars: 10 mm.
Fig. 3. Principal Component Axes 1 and 2 in Revision of the African cichlid fish genus Ctenochromis (Teleostei, Cichliformes), including a description of the new genus Shuja from Lake Tanganyika and the new species Ctenochromis scatebra from northern Tanzania
Fig. 3. Principal Component Axes 1 and 2 of morphological measurements of specimens of Ctenochromis pectoralis Pfeffer, 1893 of the type series from Korogwe, compared with specimens of C. pectoralis from the Ruvu River, and C. scatebra Genner, Ngatunga & Turner sp. nov. from Chemka Springs. The image of C. pectoralis from Korogwe is from the original description (Pfeffer 1893). Collection localities are in parentheses following the species names. In total, Principal Component Axes 1 and 2 captured 74.5% of the observed morphological variation.
Multiple stressors lead to complex responses in reproductive behaviors in an African cichlid
<p>Exposure to multiple environmental stressors is a common occurrence that can affect organisms in predictable or unpredictable ways. Hypoxia and turbidity in aquatic environments are two stressors that can affect reproductive behaviors by altering energy availability and the visual environment, respectively. Here we examine the relative effects of population and the rearing environment (oxygen concentration and turbidity) on reproductive behaviors. We reared cichlid fish (the Egyptian mouthbrooder, Pseudocrenilabrus multicolor) from two populations (a swamp and river) until sexual maturity, in a full factorial design (hypoxic/normoxic x clear/turbid) and then quantified male competitive and courtship behaviors and female preference under their respective rearing conditions. Overall, we found that the rearing environment was more important than population for determining behavior, indicating there were few heritable differences in reproductive behavior between the two populations. Unexpectedly, males in the hypoxic rearing treatment performed more competitive and courtship behaviors. Under turbid conditions males performed fewer competitive and courtship behaviors. We predicted that females would prefer males from their own population. However, under the hypoxic and turbid combination females from both populations preferred males from the other population. Our results suggest that reproductive behaviors are affected by interactions between male traits, female preference, and environmental conditions.</p>
Alteration of reproductive behaviors by aromatase inhibition is population-dependent in an African cichlid fish
Open the record for dataset details and reuse information.
Data from: Possible involvement of ghost introgressions in the striking diversity of Vomeronasal type 1 receptor genes in East African cichlids
Open the record for dataset details and reuse information.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.