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Topic: Gambusia affinis

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	Gambusia Control Homepage
		Welcome to the gambusia control homepage, dedicated to ongoing investigation of the effect of gambusia on native aquatic fauna, and exploration of potential means of control.
		Speculation that gambusia preyed on the eggs and larvae of rainbowfish (Melanotaeniidae) in the wild (Arthington and Lloyd, 1989; Arthington, 1991) was confirmed over summer 1997/98 in a field study in the upper Orara River, near Karangi, New South Wales (Ivantsoff and Aarn, 1999).
		Gambusia communities at the margin of established or recently translocated populations may be subject to environmental stress, and prone to parasitism.
	www.gambusia.net (2748 words)

	Western Mosquitofish (Site not responding. Last check: 2007-10-14)
		Gambusia affinis (western mosquitofish) has a maximum length of 56 mm, and is always found in high densities in the lower stream reaches, usually in the presence of another poeciliid fish, Poecilia mexicana.
		Gambusia affinis exhibits a wide salinity tolerance of 0 to 40 ppt, but is usually found in areas having salinities of 16 ppt or less.
		Gambusia affinis stomachs from Pearl Harbor streams were examined and found to contain various aquatic fauna such as chironomids, shrimp, and ants.
	hbs.bishopmuseum.org /good-bad/gambusia-full.html (345 words)

	Benton County Mosquito Control District - Mosquitofish
		Gambusia are known to be present in Benton and Clark counties.
		Gambusia have been located in other areas as well, but as for all the sites of this fish, it is still unknown.
		Gambusia do not provide 100% control in all types of mosquito habitats, but in certain situations, it is believed that they can help reduce mosquito populations.
	www.mosquitocontrol.org /mosquitofish.html (748 words)

	NIWA Atlas of NZ Freshwater Fishes -- Gambusia (Gambusia affinis) (Site not responding. Last check: 2007-10-14)
		In gambusia, the dorsal fin is high and rounded, whereas on sailfin molly the base of the dorsal fin is quite long.
		In gambusia, the dorsal fin begins behind the anal fin, whereas on guppies the dorsal fin is opposite the anal fin.
		Gambusia are now widespread in the northern part of the North Island, and they are spreading to parts of the lower North Island as well.
	www.niwa.cri.nz /NIWA_research/fwfishatlas/species/mosquitofish.htm (293 words)

	MOSQUITO FISH (GAMBUSIA AFFINIS) (Site not responding. Last check: 2007-10-14)
		Gambusia affinis has been introduced around the world for mosquito control, hence the common name, which it shares with at least five other fish species, including the guppy.
		Unfortunately G. affinis is not as good at eating mosquitoes as the fishes it tends to replace in those many locations.
		Gambusia affinis are aggressive fry eaters, and they may feed on the unprepared fry of their neighbors, as well as pick up a few mosquito larvae or eggs.
	www.millevolte.com /nativefish17.html (414 words)

	Gambusia affinis (Site not responding. Last check: 2007-10-14)
		The predominant color scheme of Gambusia affinis is characterized by a gray dorsal coloration fading to muddy white on the belly.
		The egg larvae, and pupa life stages of mosquitos are predated upon the small fish, Gambusia affinis, which provide a potential control of mosquito populations.
		Gambusia affinis is considered one of the most environmentally friendly control measure for mosquito populations.
	www.unk.edu /acad/biology/eichhorst/VNH/bishop/andy.html (1009 words)

	holbrook (Site not responding. Last check: 2007-10-14)
		Description :- Gambusia affinis - The head is pointed and the body slender, the general overall colour is gray fading to muddy white on the belly.
		All Gambusia species are inclined to be pugnacious and may harass or devour smaller tankmates and are not suitable for community tanks.
		Gambusia affinis often appears in amongst shipments of fish, especially of goldfish, from the far east were they have colonised the rearing ponds.
	home.clara.net /xenotoca/gaffins.htm (683 words)

	Friend or Foe
		At present the mosquitofish that we have in W. is called Gambusia holbrooki, but in older texts it may be referred to as Gambusia affinis holbrooki or Gambusia affinis (Lloyd and Tomasov (1985); Wooten et al.
		Gambusia holbrooki is a live bearer, unlike most fish, and gives birth to 20 - 40 live young.
		Gambusia holbrooki was found in this study to eat reasonable numbers of midges and may help to control nuisance problems.
	www.ecu.edu.au /chs/cem/research/wetlands_research/exotic/ghfoe.html (1508 words)

	ADVERSE ASSESSMENTS OF G. AFFINIS- Henry Rupp (NANFA)
		Gambusia affinis and G. holbrookii are for their size, among the most voracious and destructive of fishes, and although no reports of damage to the young of valuable food fishes in areas into which they have been introduced have appeared, it is possible that introduction into certain places will prove to have been a mistake.
		Gambusia was destroying a large proportion of the young bass!" He also reported removing Gambusia from a pond shared with goldfish and seeing the goldfish population double and redouble in 2 years.
		Gambusia's effectiveness as a predator as well as its omnivorous feeding patterns make it a hazard to native species and any other aquatic organisms that can be eaten (Courtenay and Meffe 1989).
	www.gambusia.net /ACmosquito.html (2245 words)

	Gambusia
		Mosquitofish (Gambusia affinis) are widely used by public health and mosquito control agencies throughout the world by being introduced into waterways in which the nuisance mosquitoes breed.
		Gambusia are now foun throughout much of the North Island; both as a combination of dispersion through connected waterbodies, but predominantly as a result of deliberate amateur introductions.
		Interactions of Gambusia with our native freshwater fish species have barely been studied; but what work has been done suggests that Gambusia is likely to affect recruitment, especially when native fishes are small and vulnerable to predation as has been observed with the fry of the endangered fl mudfish (Neochanna diversus) (Barrier and Hicks, 1994).
	www.nzfreshwater.org /thumbnails/gambusia.html (1827 words)

	Death-Valley.us - Western mosquitofish - Gambusia affinis (Site not responding. Last check: 2007-10-14)
		The Gambusia affinis, more commonly known as the mosquito fish, is a native of the United States in rivers east of the Mississippi.
		The Gambusia's successs in new areas has often correllated with the decline of native populations of the areas in which it has been introduced, which must compete for the same food supply.
		The Gambusia affinis can be found throughout United states especially in the region from the eastern Mississippi to eastern Texas up to southern Missiouri.
	www.death-valley.us /modules.php?name=News&file=print&sid=110 (612 words)

	Dr. Clark Hubbs' Publications (Site not responding. Last check: 2007-10-14)
		Survival of Gambusia affinis in a hostile environment.
		Courtship preferences of Gambusia affinis associated with the sympatry of the parental populations.
		Gambusia heterochir, a new poeciliid fish from Texas, with an account of its hybridization with G.
	www.biosci.utexas.edu /IB/faculty/hubbs/pubs.htm (3891 words)

	NORTHEASTERN MOSQUITO CONTROL ASSOCIATION DECEMBER 1996
		Gambusia are an integral part of the integrated pest management strategies employed by mosquito control agencies.
		Gambusia must be stocked every year in northern climates because oxygen levels become depleted under the ice and the fish die.
		Gambusia stocked at rates approaching 1,000 fish/acre gave both immediate and long-term control for as long as the fish were present.
	www.nmca.org /paper18a.htm (2108 words)

	Biologybase: Keeping Gambusia affinis, the Western Mosquitofish
		The western mosquitofish, Gambusia affinis, is one of the easiest to keep livebearers I have had experience with.
		Gambusia affinis is no longer considered the same species as the eastern mosquitofish, Gambusia holbrooki, which occurs east of the natural range of G.
		affinis is not as good at eating mosquitoes as the fishes it tends to replace in those new locations.
	www.interaktv.com /fishanat/Gambusiaaffinis.html (958 words)

	mosquito fish - May 2001
		affinis holbrooki was native from the New Jersey area to Central Mexico and lived in freshwater streams, ponds and brackish water along the eastern coast of the United states.
		Gambusia affinis holbrooki is about the size of a guppy, but does not in any way resemble them as far as color in concerned.
		Still another called the Western Mosquito fish, Gambusia affinis, which is native to the Gulf states, do a good job of controlling the mosquito population.
	www.brooklynaquariumsociety.org /Articles/2001-may-pg15.htm (815 words)

	BIOLOGICAL CONTROL OF MOSQUITO LARVAE IN SEWAGE WATER (Site not responding. Last check: 2007-10-14)
		Gambusia affinis holbrooki is also commonly known as mosquito fish and its larval feeding efficacy in fresh and stagnant-water is undeniable and better than any other larivore.
		Gambusia affinis holbrooki that projects their abnormal behaviour in sewage water in contrast to fresh water.
		Gambusia affinis holbrooki in fresh water was gradually decreased and it is clear that the survival rate of this fish is water quality dependent.
	www.osmania.ac.in /PG-College-Siafabad/abstract.htm (1511 words)

	THE DEVELOPMENT OF THE NEW JERSEY BIOLOGICAL CONTROL
		affinis at little or no cost to the counties, make available stockable populations at times when "native" sources were unavailable (i.e.
		County mosquito control agencies which are subject to scrutiny of their integrated control strategies, are now able to obtain an unlimited supply of a control agent and the associated expertise as another form of state-aid via the NJ State Mosquito Control Commission.
		The history of the use of Gambusia affinis (Baird and Girard) in New Jersey.
	www.nmca.org /Nmca94-16.htm (1538 words)

	Mosquito Fish
		Gambusia are highly prolific: each female will produce three to four broods of 40 to 100 young each year.
		Gambusia are ideally suited to stock ponds, ornamental ponds, golf courses, canals, creeks and lakes.
		Fall release enables the gambusia to begin controlling mosquito populations in advance of the spring breeding season, while spring release is particularly appropriate for shallow bodies of water such as ditches which may dry up by the end of summer.
	www.fattigfish.com /mosfish.htm (473 words)

	Student project report - Ichthyology - ZOO334C
		All the species of Gambusia have a characteristic dark eye stripe in both sexes, which runs from the brow through the eye to the lower edge of the operculum.
		A speciation event involving Gambusia affinis and Gambusia holbrooki might be correlated with tectonic events occurring in the region that shifted drainage patterns from a northeast-southwest direction to a north-south direction.
		Gambusia are slow-growing fish, which only become sexually mature at an age of approximately one year.
	www.sbs.utexas.edu /bio354l/Projects/1998/Timica_Patton/Gambusia_affinis.html (838 words)

	[No title] (Site not responding. Last check: 2007-10-14)
		Mosquitofish, Gambusia affinis, are one of the most widely introduced freshwater fish in the world.
		Gambusia's reputation as a mosquito control agent has been the impetus for large-scale introductions of the species.
		Development and corroboration of a Gambusia bioenergetic model is a first step to providing a tool that could be used to study resource demand and growth dynamics in mosquitofish.
	www.inhs.uiuc.edu /chf/pub/surveyreports/jan-feb99/fish.html (415 words)

	[No title] (Site not responding. Last check: 2007-10-14)
		You CAN take it with you: Colonization success and population structure of female- and pair- founded populations of Gambusia affinis.
		Female mosquitofish, Gambusia affinis, store sperm from one or more males and use that sperm to fertilize susequent broods.
		affinis into 24 experimental mesocosms, 12 receiving a single mature female and 12 male/female pairs.
	abstracts.allenpress.com /esa/web2000/abstracts/WIL-3-46-19.html (370 words)

	issg Database: Ecology of Gambusia affinis
		affinis is extremely similar to the closely related G.
		As such, their impacts and behaviour are virtually identical, and the same management techniques will work for both species.
		affinis has a near pan-global distribution and is thought to be the most widely introduced freshwater fish in the world.
	www.issg.org /database/species/ecology.asp?si=126&fr=1&sts= (721 words)

	Sex differences in endogenous retinoid release in the post-embryonic spinal cord of the western mosquitofish, Gambusia ... (Site not responding. Last check: 2007-10-14)
		Sex differences in endogenous retinoid release in the post-embryonic spinal cord of the western mosquitofish, Gambusia affinis affinis.
		In this study we have shown sex differences in endogenous retinoic acid synthesis and retinaldehyde dehydrogenase activity in the post-embryonic spinal cords of immature female and male G.
		Currently under investigation is the question of what role the endogenous enzyme(s) responsible for the synthesis of retinoic acid plays either alone or in concert with androgen in organizing hormone-dependent sexually dimorphic areas in the teleost body plan.
	www.arclab.org /medlineupdates/abstract_9059611.html (308 words)

	Journal of the Alabama Academy of Science : Gambusia affinis. @ HighBeam Research (Site not responding. Last check: 2007-10-14)
		Start / J / Journal of the Alabama Academy of Science / January 01, 2000 / Gambusia affinis.
		reported populations of masculinized eastern mosquitofish (Gambusia holbrooki), inhabiting streams receiving effluent from paper mills, in which the females showed modifications of the anal fins into normally male-associated gonopodium-like structures.
		We are currently investigating the reproductive effects resulting from exposure to androgens, as well as the mechanisms through which androgens exert their effects.
	static.highbeam.com /j/journalofthealabamaacademyofscience/january012000/gambusiaaffinis/index.html (189 words)

	Gambusia affinis
		Queste due specie sono state a lungo considerate come sottospecie di Gambusia affinis, e solo recentemente sono state riconosciute come specie distinte G.affinis e G.holbrooki.
		Gambusia ha colonizzato varie altre parti del mondo, essendo tuttora presente in tutti i continenti dove è stata introdotta per combattere biologicamente le zanzare del genere
		Gambusia abbondante sulla riva del lago, altre specie presenti Lepomis Gibbosus (Persico del Sole), Perca fluviatilis (Pesce Persico), Carpe e Alburnus alburnus alborella (Alborella).
	www.afae.it /pages/tematica/poecilidi/schedepoecilidi/gambusia_affinis.htm (788 words)

	Gambusia effectiveness in NJ
		Gambusia have been stocked for mosquito control purposes in NJ since 1905.
		GAMBUSIA EFFECTIVENESS IN In a 3-yr study of brackish swamps in Monmouth County, areas slated for stocking never retained enough water for initial stocking to occur.
		In 2 out of the 3 yr of the study, the mine pit was dry by the beginning of August which resulted in a loss of the fish.
	www.rci.rutgers.edu /~insects/gamb2.htm (2143 words)

	Encyclopedia: Gambusia affinis (Site not responding. Last check: 2007-10-14)
		The mosquitofish, Gambusia affinis (Baird and Girard, 1853), is a species of freshwater fish.
		The mosquitofish is also commonly known simply by its generic name, Gambusia, although such usage is, to say the least, ambiguous.
		It is sometimes called the western mosquitofish, to distinguish it from the eastern mosquitofish (G.
	www.nationmaster.com /encyclopedia/Gambusia-affinis (456 words)

	the Perch Farm - Gambusia (Site not responding. Last check: 2007-10-14)
		The Gambusia affinis is a native of southern North America.
		Gambusia affinis Snobelt, a cold tolerant hybrid strain of G.affinis,
		For habitat, the gambusia prefer shallow, grass and weed filled water along the edges of lakes and ponds
	www.perchfarm.com /gambusia.html (342 words)

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