Collection point · Lake Malawi · Tanzania

Ngkuyo Island

n-GKOO-yoh EYE-land (approx.)

The atlas records 11 collection-point forms from Ngkuyo Island, across 7 genera.

11.3175°S 34.7670°E

Ngkuyo Island, also known as Mbamba Island, is an island off the Tanzanian shore, about 1 km east-south-east of Mara (Ngkuyo) Reef.

Where it is

Ngkuyo Island is on the eastern shore of Lake Malawi, in its central third (127 mi south of the lake's northern tip).

Nearest collection points: Chuwa 1.6 mi east · Higga Reef 1.6 mi north-west · Sambia Reef 2.2 mi north-east

Shore, third and distances are measured from the coordinates above against the lake’s mapped outline.

The water

Lake-wide measured chemistry of Lake Malawi — collection points share their lake's water; site-specific figures are shown only where the literature records them.

Temperature75.2–84.2 °F24–29 °C
pH8.2–8.6alkaline
Hardnessmoderately soft, alkaline, well-buffered79 ppm
Conductivity≈250–260 µS/cmmeasured range

Nearest measured station: Salima (south-east shore) (~273 km) — Conductivity 235 µS/cm

Surface temperature here

Across May–Nov, monthly means run 76 °F to 82 °F — coolest in Aug. Measured by satellite 1995–2023: the daily median of clear readings within 10 km of the site (962 clear days). The rainy-season months are usually too cloudy to measure and are left blank.

75°78°81°84°Jan: too few clear satellite days (0)–JFeb: too few clear satellite days (1)–FMar: too few clear satellite days (1)–MApr: too few clear satellite days (7)–AMay: 80 °F mean (79 °F–81 °F), 64 clear satellite daysMJun: 78 °F mean (77 °F–80 °F), 117 clear satellite daysJJul: 76 °F mean (75 °F–78 °F), 159 clear satellite daysJAug: 76 °F mean (75 °F–78 °F), 214 clear satellite daysASep: 78 °F mean (76 °F–79 °F), 220 clear satellite daysSOct: 80 °F mean (79 °F–82 °F), 125 clear satellite daysONov: 82 °F mean (81 °F–84 °F), 51 clear satellite daysNDec: too few clear satellite days (3)–D
Surface temperature by month near Ngkuyo Island — dot = mean, bar = typical range (10th–90th percentile), “–” = too cloudy to measure.

Temperature: ESA Climate Change Initiative, Lakes_cci v3.0 (Asfour et al. 2026; doi:10.5285/a56dba09df8a42ec9fba8b8c7a5e1f69). Chemistry on this page remains the lake's own.

The site

Site photographs record the boat Poseidon Pioneer, built at a fish station on Lake Tanganyika and transported overland to Lake Malawi in 1994, photographed in 1997 at a small cove on the island's western side.

Sources
  1. malawi.si — Ngkuyo (Mbamba) Island, Lake Malawi, Tanzania: location page and photo gallery (captions by African Diving Ltd)

Each entry below is the population of that species recorded here — the form aquarists keep and breed as a distinct, provenance-labelled line. Crossing forms from different collection points is considered hybridisation in the hobby.

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