Results 1 - 10 of 329 for length at first maturity within all areas of the EPA. Only web pages are included. Search all document formats.

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Final Report | Framework for Predicting the Effects of Environmental Change on Populations
Individuals in isolation were typically first observed with eggs at lengths of around 1.4 mm, but in populations, this threshold was ...
http://cfpub.epa.gov/ncer_abstracts/index.cfm/fuseaction/display.abstr... (HTML)
Contaminated Sediments | Great Lakes | US EPA03-20-2009
At least two test organisms, comprising at least three measured responses (i.e., survival, growth, or reproduction ... However, chronic endpoints of length and sexual maturation were highly discriminatory for a minimum of one AOC survey ...
http://www.epa.gov/greatlakes/arcs/EPA-905-B94-002/B94002-ch6.html (HTML)
Page Title | About the Gulf Ecology Division | US EPA11-23-2009
Juvenile mysids released by exposed adults and reared through maturation without further exposure produced fewer young and had altered sex ratios (lower percentages of males) at lower parental-exposure concentrations than directly affected parental reproduction ...
http://www.epa.gov/ged/publica/cabanc37.htm (HTML)
Great Lakes Ecosystem: '95 Midwest Oak Savanna and Woodland Ecosystems Conferences03-09-2006
... shown a preference for this species in early winter and at first bud stage... and phonological preference will be monitored beginning November 1995. At first, the task of replacing native species for standard exotic species ...
http://www.epa.gov/ecopage/upland/oak/oak95/abstracts.html (HTML)
Page Title | About the Gulf Ecology Division | US EPA11-23-2009
... hatched fish are 3.9 µg/L and both weight and length at 2.2 µg/L; no effects were detected at 0.56 µg/L ...
http://www.epa.gov/ged/publica/cabanc27.htm (HTML)
Page Title | About the Gulf Ecology Division | US EPA11-23-2009
Larval total length at emergence was 2.3 mm; at 96 hr post-emergence, 2.7 mm; and at 120 hr post-emergence, 2.5 mm ...
http://www.epa.gov/ged/publica/cabprj5.htm (HTML)
TRAC Transcript of Meeting April 27-28, 199910-30-2009
... be the same question to you, in that you're looking at -- at -- at 60 calendar days, which is only 40 work days ...
http://www.epa.gov/ocem/nacept/datrac/script4-99.htm (HTML)
Federal Register: April 7, 2005 | Mid Atlantic Cleanup | US EPA01-26-2010
A low-dose-linear model approximates a straight line only at very low doses; at higher doses near the observed data, a low-dose-linear ...
http://www.epa.gov/reg3hscd/fr/2005/04/07b.htm (HTML)
Page Title | About the Gulf Ecology Division | US EPA11-23-2009
No fish died at 10 o/oo salinity during the first 24 days after hatching and no mortalities occurred as salinity ...
http://www.epa.gov/ged/publica/cabanc38.htm (HTML)
EDSP Archive | Endocrine Disruptor Screening Program | US EPA10-09-2007
Can also measure age at first estrus, onset of cyclicity and if cycles are absent... Tests for endocrine disruption will encompass at least one generation including effects on fertility and mating, in ...
http://www.epa.gov/endo/pubs/edsparchive/2ndinter.htm (HTML)

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