Potamodromy and Reproduction of Colorado Squawfish in the Green River Basin, Colorado and Utah

Influence of Skipped Spawning and Misspecified Reproductive Schedules on Biological Reference Points in Sustainable Fisheries

“…The gray box delineates sturgeon data. Species include European chub Leuciscus cephalus (Fredrich et al 2003); striped bass (Carmichael 1995;Hewitt 2003); white sucker (Trippel and Harvey 1989); Colorado pikeminnow Ptychocheilus lucius (Tyus 1990); burbot Lota lota (Pulliainen and Korhonen 1990); Atlantic cod (Schwalme and Chouinard 1999); hoki Macruronus novaezelandiae (Livingston et al 1997); Atlantic salmon Salmo salar (Schaffer and Elson 1975); orange roughy Hoplostethus atlanticus (Bell et al 1992); lake trout Salvelinus namaycush and lake whitefish Coregonus clupeaformis (Kennedy 1953(Kennedy , 1954; Atlantic herring Clupea harengus (Engelhard and Heino 2005); stellate sturgeon Acipenser stellatus, Russian sturgeon Acipenser gueldenstaedtii, and beluga sturgeon Huso huso (Secor et al 2000); yellowfin bream Acanthopagrus australis (Pollock 1984); European perch Perca fluviatilis (Holmgren 2003); shortnose sturgeon Acipenser brevirostrum, white sturgeon, and Atlantic sturgeon (Gross et al 2002); and lake sturgeon (Roussow 1957).…”

First evidence of potadromy and partial migration in black basses: shoal bass Micropterus cataractae (Actinopterygii, Centrarchidae) in the Upper Flint River, USA

“…Potamodromous fishes often form spawning aggregations for short durations during the spawning season (Tyus, 1990;Bunt & Cooke, 2001;Jaeger et al, 2005); however, until recently this had not been demonstrated for any black bass species. Shoal bass in the lower 119-km undammed stretch of the Flint River below Albany, Georgia, have been observed to form large spawning aggregations in selected shoals (Ingram et al, 2013;Ingram & Kilpatrick, 2015).…”

“…Potamodromy, migration for reproduction within freshwater systems, is widely practiced among fishes. Fish found in large river systems are particularly prone to this life history strategy, typically moving distances[100 km to reach preferred spawning sites (Hesse et al, 1982;Tyus, 1990;Mallen-Cooper & Stuart, 2003). Patterns of migration and homing are usually assumed to be related to selection of habitats that are appropriate for the development and survival of young (Diana, 1995).…”

“…Movement patterns are less understood for regionally endemic black bass species, but have generally been considered to exhibit behaviors similar to their more-studied congeneric species. However, obligate lotic species often develop specific life-history strategies that enable them to maximize evolutionary fitness (Diana, 1995), which may be highly divergent from those practiced by more cosmopolitan species (Tyus, 1990;Northcote, 1997).…”

Potential effects of four Flaming Gorge Dam hydropower operational scenarios on the fishes of the Green River, Utah and Colorado

“…In the lower Yampa River, spawning is believed to occur over gravel, cobble, and boulder bars (Tyus 1990) that are cleared of accumulated sediments during spring floods ( p u s and Karp 1991). Breeding adults concentrate in low-velocity pools and eddies adjacent to the spawning bars, move onto bars to spawn, and then return to pools and eddies.…”