of the book, cover limnology, phytoplankton and project had recommended the introduction of fresh- crustacean zooplankton, while the remaining eight water clupeids to ﬁll this supposed vacancy which had chapters deal with ﬁsh and ﬁsheries and thus fall somehow arisen in the lake with the largest number of within the remit of this journal. freshwater ﬁsh species in the world. The ﬁsh section starts with a chapter by Allison Thompson, using dynamic pool models, suggests et al. on identiﬁcation of the pelagic ﬁsh, which a safe, sustainable yield of around 33 000 tonnes from states that “speciﬁc identity of all ﬁsh was readily the pelagic zone. The recommended yield of Engraul- determined ...with the exception of members of the icypris is given as some 3200 t, yet there is no mention Rhamphochromis and Diplotaxodon genera”. Unfortu- that Malawian ﬁsheries statistics already indicated an nately, it is later estimated that these cichlids represent average annual yield of 7000 t from inshore areas, an estimated 81% of the ﬁsh biomass in the study and a market survey had suggested that as much as system. Although the authors have made a good effort 90% of the catch was going unrecorded in some
Reviews in Fish Biology and Fisheries – Springer Journals
Published: Sep 30, 2004
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