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          Institute: MPI für Evolutionsbiologie     Collection: Ecophysiology     Display Documents

ID: 119365.0, MPI für Evolutionsbiologie / Ecophysiology
Paleogenetic evidence for a past invasion of Onondaga Lake, New York, by exotic Daphnia curvirostris using mtDNA from dormant eggs.
Authors:Duffy, Meghan A.; Perry, Linda J.; Kearns, Colleen M.; Weider, Lawrence J.; Hairston Jr., Nelson G.
Date of Publication (YYYY-MM-DD):2000-09
Title of Journal:Limnology and Oceanography
Journal Abbrev.:Limnol. Oceanogr.
Issue / Number:6
Start Page:1409
End Page:1414
Copyright:Jahrbuch 2001, Copyright MPG 2001
Review Status:not specified
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:Cladocerans possess traits such as resistant diapausing eggs and rapid parthenogenetic reproduction that make them efficient invaders of new habitats. Nearly all known invasions have been successful, perhaps because failed invasions are difficult to detect. It is possible, however, to identify past failed invasions, by studying the diapausing egg bank. Daphnia ephippia were found in the sediments of Onondaga Lake, New York that could neither be hatched nor identified using egg-case morphology. Instead, we used sequences of the 12S ribosomal ribonucleic acid (rRNA) gene of mitochondrial deoxyribonucleic acid (mtDNA) extracted from diapausing eggs to identify the unknown Daphnia. We compared these DNA sequences with those generated from morphologically identified Daphnia species collected in Onondaga Lake, and with published sequences for other North American Daphnia species. The invader was identified as Daphnia curvirostris, a Eurasian species that has been only reported once before from North America, in extreme northwestern Canada. The discovery of it in Onondaga Lake signifies a greater than 4,500-km range extension for this species. On the basis of the sediment ephippial data, D. curvirostris first appeared in the lake about 1952, reached maximum abundance during the period of peak pollution (1950s-1980s), and then essentially disappeared after 1983 when lake water quality improved. As with the finding of another exotic cladoceran, D. exilis, in Onondaga Lake (Hairston et al. 1999a), it is likely that chemical industry activities on the lakeshores were the original source of invading D. curvirostris, that pollution allowed this species to become established in the lake, and that the reduction in pollution ultimately led to its disappearance from the water column.
External Publication Status:published
Document Type:Article
Affiliations:MPI für Evolutionsbiologie/Abt. Ökophysiologie
External Affiliations:Cornell Univ, Dept Ecol & Evolut Biol, Ithaca, NY 14853 USA
Identifiers:ISSN:0024-3590 [ID-No:1]
LOCALID:1918/S 37577 [Listen-Nummer/S-Nummer]
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