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Triclads (Turbellaria: Tricladida) as predators of lake‐dwelling stonefly and mayfly nymphs
Author(s) -
REYNOLDSON T. B.,
BELLAMY PATRICIA
Publication year - 1975
Publication title -
freshwater biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.297
H-Index - 156
eISSN - 1365-2427
pISSN - 0046-5070
DOI - 10.1111/j.1365-2427.1975.tb01757.x
Subject(s) - mayfly , nymph , turbellaria , fauna , biology , predation , invertebrate , littoral zone , ecology
Summary It has been demonstrated by using a serological technique that Polycelis nigra (Müller) and P. tennis (Tjima) feed on mayfly and stonefly nymphs in unproductive lakes. Such feeding is less in productive lakes where these insects form a smaller proportion of the invertebrate fauna of the stony littoral zone. These nymphs form a significantly larger part of the diet of P. nigra than of P. tenuis ; both triclad species feed more on stoneflies than mayflies.