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The profundal fauna of Llyn Tegid, North Wales
Author(s) -
Hunt P. C.,
Jones J. W.
Publication year - 1972
Publication title -
journal of zoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.915
H-Index - 96
eISSN - 1469-7998
pISSN - 0952-8369
DOI - 10.1111/j.1469-7998.1972.tb01337.x
Subject(s) - profundal zone , fauna , benthic zone , abundance (ecology) , biology , invertebrate , ecology
Benthic fauna samples were quantitatively collected each month from the 6 to 40 m depth zone of Llyn Tegid for a period of one year. The seasonal distribution, abundance and life cycles of the invertebrate species are discussed in addition to a general description of the physical and chemical environment in which they live. The abundance and composition of the profundal fauna is compared with that of a similar survey carried out by D. R. Dunn in 1951/2 and shows a fourfold increase in total numbers of animals. The contribution to the increased profundal fauna of all animals recorded in 1951/2 and of those that have colonized this zone since that time are discussed.