Mature sturgeon Agent move from the Gulf in early spring to spawn and migrate back to saltwater in the autumn or early winter. [ Endangered_Species_Mississipi_Packet 0 NP MCLH 21/06/2017 ]

The number of winter-run Chinook salmon Agent returning to spawn in the Sacramento River Location was dangerously low. [ Citizens_Guide_Esa 0 NP MCLH 21/06/2017 ]

With the river finally free, it became possible for federally endangered Atlantic salmon and all migratory fish bound for the ocean Agent to pass the site where the dam once stood and swim upstream to spawn. [ CBD_10_PLACES_SAVED_ESA 0 NP 15/06/2017 ]

Gulf sturgeon , like salmon Agent , appear to return as adults to spawn in the same river in which they hatched Location . [ Endangered_Species_Mississipi_Packet 0 NP MCLH 21/06/2017 ]

These fish Agent spawn in June and July Time when the water temperatures have warmed to about 66 degrees F Time . [ Endangered_and_Threatened_Species_of_Utah 0 NP MCLH 21/06/2017 ]

Shortnose sturgeon Agent are born in freshwater rivers and streams, migrate out to the ocean where they spend most of the year, and return upstream to spawn several times throughout their lives Frequency . [ ESA_30yrs 0 NP MCLH 21/06/2017 ]

The fish Agent move relatively short distances to spawn, and the breeding process takes place at cobble or gravel bars in the river. [ Endangered_and_Threatened_Species_of_Utah 0 NP MCLH 21/06/2017 ]

Individuals Agent typically spawn in very swift, rubble-bottomed riffles among areas with vegetation, boulders or sand Location . [ Endangered_Species_Mississipi_Packet 0 NP 15/06/2017 ]

Females Agent may produce 500-2000 mature eggs per season but may spawn several times during a single season Frequency . [ Endangered_Species_Mississipi_Packet 0 NP 15/06/2017 ]

Woundfin Agent spawn in April Time when water temperatures reach 58 degrees F Time . [ Endangered_and_Threatened_Species_of_Utah 0 NP MCLH 21/06/2017 ]

June sucker Agent do not spawn in sand, silt, or calm backwater areas Location . [ Endangered_and_Threatened_Species_of_Utah 0 NP MCLH 21/06/2017 ]

Females Agent are thought to spawn at least twice per breeding season Frequency and may produce as many as 80 eggs during each spawning season. [ Endangered_Species_Mississipi_Packet 0 NP 15/06/2017 ]

The Leon Springs pupfish Agent spawns throughout the year Frequency , with females laying up to 10 eggs per day. [ Endangered_and_Threatened_Animals_Texas 0 NP MCLH 21/06/2017 ]

It Agent [ the pallid sturgeon ] spawns in June and July Time and feeds on aquatic insects and small fish. [ According to Endangered_Species_Mississipi_Packet 0 NP 15/06/2017 ]

Neosho madtoms Agent spawn in nests constructed under large objects Location . [ USFWS_ES_BULLETIN 0 NP 15/06/2017 ]

Results from histology and their telemetry data supported the hypothesis that male Gulf sturgeon Agent may spawn annually Frequency , whereas females require more than 1 yr between spawning events. [ COOKE_BIOTELEMETRY 0 NP 15/06/2017 ]

Some younger fish Agent do survive and spawn, but their young continue to be eaten by the introduced fish. [ USFWS_ES_BULLETIN 0 NP 15/06/2017 ]

These fish Agent spawn in late winter Time ; so, before the wild larvae can be eaten by predators Time , volunteers venture out onto Lake Mohave with lights and small aquarium dip nets to capture them. [ USFWS_ES_BULLETIN 0 NP MCLH 21/06/2017 ]

However, a number of telemetered individuals Agent spawned at the same site Location for more than 1 yr after migrating from both upstream and downstream areas Duration , indicating potential for subpopulations. [ COOKE_BIOTELEMETRY 0 NP 15/06/2017 ]

Fish and Wildlife Service biologist Chuck Minckley (now retired) discovered that both bonytails and razorback suckers Agent spawned and produced young in an off-channel pond at Cibola National Wildlife Refuge, near Blythe, Arizona. [ USFWS_ES_BULLETIN 0 NP 15/06/2017 ]

This intensive effort identified likely locations and timing of pallid sturgeon Agent spawning in the Lower Missouri River mainstem Location . [ USFWS_ES_BULLETIN 0 NP 20/06/2017 ]