Results 231 to 240 of about 27,182 (274)

Status and Habitat Use of Scaphirhynchus Sturgeons in an Important Fluvial Corridor: Implications for River Habitat Enhancement

, 2016
In the central United States, recovery efforts for populations of the federally endangered Pallid Sturgeon Scaphirhynchus albus have been ongoing since its listing in 1990. Its congener, the Shovelnose Sturgeon S.
W. Hintz, D. C. Glover, J. Garvey, K. Killgore, D. Herzog, T. Spier, R. Colombo, R. Hrabik   +7 more
semanticscholar   +1 more source

Duration and drift of larval lake sturgeon in the Sturgeon River, Michigan

Journal of Applied Ichthyology, 2002
Summary Recovery of lake sturgeon populations in the Great Lakes basin is now a focus of binational,federal,provincial,state and tribal management agencies; however,efforts to restore and rehabilitate stocks will be ineffective until early life history strategies are understood.
Nancy A. Auer, Edward A. Baker
openaire   +2 more sources

Technical note: Production of tetraploid sturgeons.

Journal of Animal Science, 2015
Studies and practical application of androgenesis and gynogenesis in sturgeon are significantly hindered by strong influence of ploidy restoration treatment on survivability of progeny; therefore, developed method of production of tetraploid broodstock ...
I. Lebeda, M. Flajšhans
semanticscholar   +1 more source

Chromosome banding in sturgeons

Journal of Applied Ichthyology, 1999
Summary The article reviews the present knowledge of chromosome banding in sturgeons and summarizes recent findings obtained by both classical banding techniques (C-banding, fluorescent and silver staining) and molecular methods, such as fluorescent in situ hybridization (FISH).
FONTANA, Francesco, ROSSI, Remigio, LANFREDI M, ARLATI G, BRONZI P.   +4 more
openaire   +3 more sources

Habitats for the Atlantic sturgeons in Russia

, 2017
The critically endangered Atlantic sturgeon, Acipenser sturio, inhabited the Russian section of the Baltic Sea basin until recent times. Eight rivers were indicated as their habitats in local literature. The Atlantic surgeon disappeared in Russia because
I. Popov
semanticscholar   +1 more source

Reply to Sturgeon

Ethics, 1985
Can I interchange the phrases 'it is rational to' and 'it makes sense to,' as I have been doing? It is primarily talk of what it "makes sense" to do, to feel, and to believe that concerns me here. Indeed for my purposes, I could drop talk of "rationality" altogether and speak only of its "making sense" to do and to feel certain things.
openaire   +2 more sources

Critical Swimming Speed and Behavior of Juvenile Shovelnose Sturgeon and Pallid Sturgeon

Transactions of the American Fisheries Society, 2003
Abstract The swimming performance of hatchery-reared, juvenile shovelnose sturgeon Scaphirhynchus platorynchus and pallid sturgeon S. albus was studied in a laboratory swim tunnel at 20°C and 10°C. The mean 30-min critical swimming speed was not significantly different between species at either temperature (36.9 cm/s for shovelnose sturgeon and 35.9 cm/
Adams, S R, Adams, G L, Parsons, G R
openaire   +2 more sources

Fin healing and regeneration in sturgeon

Journal of Fish Biology, 2018
Pectoral fin healing in fin spines and rays were examined in juvenile Atlantic sturgeon Acipenser oxyrinchus oxyrinchus following three different sampling techniques (n = 8–9 fish per treatment): entire leading fin spine removed, a 1–2 cm portion removed near the point of articulation, or a 1–2 cm portion removed from a secondary fin ray.
Peter J. Allen, Wes Baumgartner, Erin Brinkman, Robert J. DeVries, Heather A. Stewart, Daniel L. Aboagye, Shane W. Ramee, Michael A. Ciaramella, Charlie M. Culpepper, Lora Petrie‐Hanson   +9 more
openaire   +3 more sources

Critical thermal maximum (CTmax) and hematology of shortnose sturgeons (Acipenser brevirostrum) acclimated to three temperatures

, 2014
Quantifying a species thermal tolerance is critical to assessing biological impacts of anticipated increases in temperature (e.g., climate change). Although many studies have documented the critical thermal maximum (CTmax) of fish, there is a paucity of ...
Yueyang Zhang, J. Kieffer
semanticscholar   +1 more source

Extensive genome duplications in sturgeons: new evidence from microsatellite data

, 2013
Summary Genome duplications and polyploidization events are thought to have played relevant roles in the early stages of vertebrate evolution, in particular near the time of divergence of the lamprey lineage.
M. Havelka, M. Hulák, D. Bailie, P. Prodöhl, M. Flajšhans   +4 more
semanticscholar   +1 more source