endangered aquatic species in pennsylvania toni christopher limnology division of natural sciences...
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ENDANGERED AQUATIC SPECIES IN PENNSYLVANIA
Toni Christopher
Limnology
Division of Natural Sciences and Mathematics
ENDANGERED SPECIES IN PENNSYLVANIA
one fish
one plant
eight species of mussel
SHO RTNO SE STURGEON, ACIPENS ER BREVIROST RUM
Listed since 1967
Anadromous, long-lived, long generation times
Habitat loss/degradation, accidental mortality,
pollution
Recovery plan -> 2024
http://www.nmfs.noaa.gov/pr/species/fish/shortnosesturgeon.htm
NORTHEASTERN BULRUSH, SCIRPUS ANCISTROCHAETUS
Also called barbedbristle bulrush
Listed since 1991
Obligate wetland plant
habitat destruction, drawdown of the water table,
disruption of water courses, invasive species,
agricultural runoff, and natural events
http://www.fs.fed.us/wildflowers/rareplants/profiles/tep/scirpus_ancistrochaetus/index.shtml
THE MUSSELS
Eight species, same characteristics
Listed since various years
All listed due to habitat loss, degradation, siltation,
water pollution
Recovery plans in progress for all of them, only
once close to being complete
Clubshell, Pleurobema clava
Pink mucket, Lampsilis abrupta
Rough pigtoe, Pleurobema plenum
Orangefoot pimpleback, Plethobasus
cooperianus
Northern riffleshell, Epioblasma
torulosa rangiana
Ring pink, Obovaria retusa
Dwarf wedgemussel, Alasmidonta
heterodon
Cracking pearlymussel, Hemistena lata
THE MUSSELS
1993 1976 1976
19761993
1990
1989
IMAGE REFERENCES
http://www.nmfs.noaa.gov/pr/species/fish/shortnosesturgeon.htm
http://www.fs.fed.us/wildflowers/rareplants/profiles/tep/scirpus_ancistrochaetus/index.shtml
http://miendangeredspecies.blogspot.com/2007/02/clubshell.html
http://www.marietta.edu/~biol/mussels/pinkmuk.html
http://www.fws.gov/midwest/endangered/clams/rough_fc.html
http://www.fws.gov/midwest/endangered/clams/orang_fc.html
http://www.naturalheritage.state.pa.us/factsheets/12209.pdf
http://www.fws.gov/midwest/endangered/clams/ringp_fc.html
http://www.dec.ny.gov/animals/42253.html
CONTEXT REFERENCES
U.S. Fish and Wildlife Service website Species
Profile• See paper for full links
QUESTIONS?
1993 1976 1976
19761993
1990
1989
1967
1991