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| Lake Niassa (Lake Malawi), Mozambique | 1981 - 1982 | females | gillnets | absolute number measured | |||
| Lake Niassa (Lake Malawi), Mozambique | 1981 - 1982 | males | gillnets | absolute number measured | |||
| Lake Niassa (Lake Malawi), Mozambique | 1981 - 1982 | unsexed/mixed | gillnets | absolute number measured | |||