Skip to Main Content
Environmental conditions of 2 river drainages into the Northern Gulf of Mexico during successful hatching of Alabama shad (Alosa alabamae)Author(s): Paul F. Mickle; Jacob F. Schaefer; Susan B. Adams; Brian R. Kreiser; Wiliam T. Slack
Source: Fishery Bulletin
Publication Series: Scientific Journal (JRNL)
Station: Southern Research Station
View PDF (1.0 MB)
DescriptionIn recent years, the Alabama shad (Alosa alabamae) has experienced dramatic declines and extirpations from portions of its native range. Habitat degradation and barriers to migration are considered contributing factors to contraction in the distributional range this species. To identify conditions during successful spawning, river temperatures and discharges in 2 drainages of the northern Gulf of Mexico (the Apalachicola and Pascagoula rivers) were characterized during successful hatching “windows.” Sampling during 2005–2009 yielded 400 juvenile Alabama shad of which 261 were aged from counts of rings on sagittal otoliths. Results from logistic regression revealed that successful spawning coincided with increases in temperature within a specific range (9.4–21.5°C) and with an average drainage-dependent discharge volume (625.6 m³/s in the Apalachicola River and >400.7 m³/s in the Pascagoula River). Timing of successful hatching windows differed between drainages but not between years within each drainage. Documenting and identifying the river conditions during successful reproduction provide important information on how to manage rivers to aid in the recovery of this species of conservation concern.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationMickle, Paul F.;Schaefer, Jacob F.; Adams, Susan B.; Kreiser, Brian R.; Slack, Wiliam T. 2016. Environmental conditions of 2 river drainages into the Northern Gulf of Mexico during successful hatching of Alabama shad (Alosa alabamae). Fishery Bulletin, 114(4): 503-512. 10 p. doi: 10.7755/FB.114.4.11
- Diet of juvenile Alabama shad (Alosa alabamae) in two northern Gulf of Mexico drainages
- Habitat use of age 0 Alabama shad in the Pascagoula River drainage, USA
- Threatened fishes of the world: Alosa alabamae (Jordan and Evermann, 1896) (Clupeidae)
XML: View XML