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odenkirkj has contributed to 4 posts out of 419 total posts
(0.95%) in 879 days (0.00 posts per day).
20 Most recent posts:
VDGIF Corner »
Snakehead question May 10, 2008 07:42 AM
(Total replies: 2)
Target the slow, shallow, heavily vegetated waters in the back of the tidal embayments of Dogue and Pohick Creeks. NSH are like any other top level predators such as striped or largemouth bass - they will eat anything they can fit down the pipes. The favorite food item based on gut contents of around 200 fish is banded killifish (a small soft rayed minnow). But, based on angler reports, it does not really matter what you throw at it: If it is hungry, it will hit your offering. We also see white perch, pumpkinseed sunfish and gizzard shad commonly consumed. They are more cover oriented than any other fish - they will always be under something (usually vegetation, but sometimes docks, timber, etc.), except for when they rise to the surface to gulp for air (they are obligate air breathers). They do not walk on land. They have serious teeth (do not lip one), and we have seen them to 32" and 14 lbs (our growth models suggest they may top 30 lbs).
VDGIF Corner »
Driving me crazy????? May 10, 2008 07:35 AM
(Total replies: 2)
I agree with Chip - probably gizzard shad, although carp are beginning to get pretty active - if they were large fish, I'd go with carp.
VDGIF Corner »
trout reproduction Apr 28, 2008 04:06 PM
(Total replies: 1)
Gary - hi, John here... The answer is yes - we have natural reproduction of all three trout species in VA (brook, brown and rainbow). We do not stock hatchery fish (usually) on top of wild brook trout populations. We do not hybridize salmonids, although some state agencies in the past experimented with "tiger" trout (a cross between a brown and brook). Crosses like this were a fad in fish. mgt. years back, but we pretty much got past it. Natural hybrids are very rare. The bottom line is, if the habitat is present, trout will reproduce. Most streams in NOVA do not have the habitat (too warm, too silty and/or too little oxygen among other things).
VDGIF Corner »
Potomac River Northern Snakehead (NSH) Update Apr 14, 2008 11:17 PM
(Total replies: 0)
The 2007 sampling season saw decreased time on the water for Virginia Department of Game and Inland Fisheries (VDGIF) crews in the form of boat electrofishing samples due to the presence of investigators from Virginia Tech. The Tech students and technicians were involved in a variety of intensive studies, many of which had parallel objectives. This crew made several timely discoveries, and data are still being analyzed; but look for some good future publications. Sampling that was completed by VDGIF crews during 2007 resulted in a NSH boat electrofishing mean catch rate of 2.9 fish per hour which represented a decline from 2006 (6.1 fish per hour). However, there was no significant difference between catch rates in 2006 and 2007. Catch rate in 2006 was significantly higher than in 2004 or 2005. The linear trend continued to indicate an increasing population. Reported angler catches (34) reached a third consecutive annual record despite decreased publicity. This linear trend also indicated an increasing population. Range, based on angler catches, increased substantially, and known colonized waters included approximately 50 miles of the mainstem Potomac River from Little Falls (Washington, D.C.) downstream to Aquia Creek (Stafford County, Virginia) including tributaries within Maryland, Virginia and D.C. VDGIF plans to resume bi-monthly community and NSH specific sampling April-September in an effort to document NSH population characteristics and any potential changes to the fish community. John Odenkirk, 540-899-4169 x117, john.odenkirk@dgif.virginia.gov. |
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