Collection point · Lake Malawi · Malawi

South East Arm

SOWTH EEST ARM (approx.)

The atlas records 60 collection-point forms from South East Arm, across 14 genera.

14.2919°S 35.1925°E

South East Arm is a trade label for fish from Lake Malawi's south-eastern arm, one of the two southern lobes of the lake either side of the Nankumba Peninsula; malawi.si plots the label about 6 km north-east of Nkopola.

Where it is

South East Arm is at the southern end of Lake Malawi, 333 mi south of the lake's northern tip.

Nearest collection points: Crocodile Rocks 3.1 mi west · Nkopola 3.5 mi south-west · Chemwezi Rocks 3.8 mi 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: Monkey Bay (south basin) (~42 km) — Visibility (Secchi) 12.5 m

Surface temperature here

Across Mar–Nov, monthly means run 73 °F to 81 °F — coolest in Jul. Measured by satellite 1995–2023: the daily median of clear readings within 10 km of the site (1608 clear days). The rainy-season months are usually too cloudy to measure and are left blank.

71°75°79°83°Jan: too few clear satellite days (1)–JFeb: too few clear satellite days (2)–FMar: 80 °F mean (77 °F–83 °F), 11 clear satellite daysMApr: 78 °F mean (75 °F–80 °F), 58 clear satellite daysAMay: 76 °F mean (75 °F–78 °F), 189 clear satellite daysMJun: 75 °F mean (73 °F–77 °F), 239 clear satellite daysJJul: 73 °F mean (72 °F–74 °F), 246 clear satellite daysJAug: 74 °F mean (72 °F–75 °F), 305 clear satellite daysASep: 76 °F mean (74 °F–78 °F), 300 clear satellite daysSOct: 79 °F mean (76 °F–81 °F), 176 clear satellite daysONov: 81 °F mean (78 °F–83 °F), 72 clear satellite daysNDec: too few clear satellite days (9)–D
Surface temperature by month near South East Arm — 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

The label covers a stretch of lake rather than a single reef, and the forms exported under it are mostly sand- and open-water haplochromines such as Lethrinops and Placidochromis rather than rock-dwelling mbuna.

Sources
  1. malawi.si — Lake Malawi interactive locations map: South East Arm
  2. Konings, A. (2016). Malawi Cichlids in their Natural Habitat, 5th Edition. Cichlid Press, El Paso.

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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