crustacean reproduction

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72 documents for crustacean reproduction

- Separate Parts In This Issue Part II Interior Department, Fish and Wildlife Service,
... Critical Habitat for Four Vernal Pool Crustaceans and Eleven Vernal Pool Plants in California and So... pool crustaceans have evolved short reproduction times and high reproductive rates. Most of the cru...
- FR, August 06, 2003
- Endangered and threatened species: Critical habitat designations Vernal pool crustaceans and plants in California and Oregon,
... pool crustaceans have evolved short reproduction times and high reproductive rates. Most of the cru...
- FR, August 06, 2003
- Rules
- Fish and Wildlife Service
- Evolution, Over Easy
Kerfoot and others studying resurrection ecology - a term he coined in a 1999 Limnology and Oceanography paper - find layers of increasingly older eggs buried in lake sediments, bring them back to life by subjecting them to favorable light and temperature cycles, and then study how the hatchlings compare to adults hatched from more recent eggs. The practice became an experimental science in the 1980s, when Nelson Hairston, Jr., and a colleague at Cornell University systematically hatched 3-year-old copepod eggs collected from sediments at the bottom of two Rhode Island ponds and studied how reproduction timing in modern copepods differed from that in older populations.

...The crustacean eggs that Kerfoot reanimates in his laboratory tec...
- Scientist, The
- August 24, 2009

- Endangered and threatened species: Critical habitat designations Vernal pool crustaceans, et al.,
... or shelter; sites for breeding, reproduction, and rearing (or development) of offspring; and ha...
- FR, August 11, 2005
- Rules
- Fish and Wildlife Service
- 40 CFR Appendix A to Part 132 - Great Lakes Water Quality Initiative Methodologies for Development of Aquatic Life Criteria and Values
...A planktonic crustacean (e.g., a cladoceran, copepod); e. A benthic crusta... tests in which survival, growth, or reproduction in the control treatment was unacceptably low shal...
- Code of Federal Regulations - Title 40: Protection of Environment
- Part II
... Critical Habitat for Four Vernal Pool Crustaceans and Eleven Vernal Pool Plants in California and So... or shelter; sites for breeding, reproduction, and rearing (or development) of offspring; and ha...
- FR, August 11, 2005
- Separate parts
- Interior Department, Fish and Wildlife Service
- Part III
... possibly due to their hermaphroditic reproduction increasing the chance of new colonization.'' Ident...A. Procambarus. Bastrop Crayfish. TX. Crustacean texanus. A. Holsingerius. Cave Obligate. TX. Crust...
- FR, December 16, 2009
- Separate parts
- Interior Department, Fish and Wildlife Service
- Takes of Marine Mammals Incidental to Specified Activities; Physical Oceanographic Studies in the Southwest Indian Ocean, January Through February, 2012
NMFS has received an application from the United States Navy (Navy) for an Incidental Harassment Authorization (IHA) to take marine mammals, by harassment, incidental to conducting physical oceanographic studies in the southwest Indian Ocean, January through February, 2012. Pursuant to the Marine Mammal Protection Act (MMPA), NMFS is requesting comments on its proposal to issue an IHA to the Navy to incidentally harass, by Level B harassment only, 29 species of marine mammals during the specified activity.

... capture, orientation and navigation, reproduction, etc.) are adversely affected. Little is known...Page 71953. crustaceans and cephalopods, the two taxonomic groups of inver...
- Federal Register Nbr. 76 FR 71940, November 21, 2011
- Notices
- National Oceanic and Atmospheric Administration
- Endangered and Threatened Wildlife and Plants:
... one new fish, one new snail, one new crustacean, and two new plant candidates, which we are recogn... mortality events or impairment of reproduction. Thus, the threats are moderate in magnitude. Seve...
- FR, November 10, 2010
- Proposed rules
- Fish and Wildlife Service
- Takes of Marine Mammals Incidental to Specified Activities:
... capture, orientation and navigation, reproduction, etc.) are adversely affected. Little is known abo... survey sound on species of decapod crustaceans and cephalopods, the two taxonomic groups of inver...
- FR, September 19, 2011
- Notices
- National Oceanic and Atmospheric Administration