Results 171 to 180 of about 24,876 (221)
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The American Midland Naturalist, 2000
Abstract Spawning behaviors were filmed and observed in the nest-building minnows, the bluehead chub, Nocomis leptocephalus, and river chub, N. micropogon. Analysis of videotapes exposed previously unreported behaviors (e.g., female retroflexure) and a precise sequence of male-female interactions that coordinated a successful spawn.
MARK H. SABAJ +2 more
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Abstract Spawning behaviors were filmed and observed in the nest-building minnows, the bluehead chub, Nocomis leptocephalus, and river chub, N. micropogon. Analysis of videotapes exposed previously unreported behaviors (e.g., female retroflexure) and a precise sequence of male-female interactions that coordinated a successful spawn.
MARK H. SABAJ +2 more
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Captive Breeding of Endangered Mohave Tui Chub
North American Journal of Aquaculture, 2009Abstract The endangered Mohave tui chub Gila bicolor mohavensis, which occurs only in three populations in southern California, has not been previously spawned in captivity. Captive breeding of imperiled fishes can be important to conserve biodiversity and aid in native fish conservation efforts by reducing the collection of wild fish ...
Thomas P Archdeacon, Scott A Bonar
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1919
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Transactions of the American Fisheries Society, 1990
Abstract Gonadosomatic indices (100 × gonad weight/whole-body weight) and the occurrence of expressible gametes indicated a temporal overlap in the spawning of humpback chub Gila cypha and roundtail chub G. robusta at Black Rocks, a turbulent, deepwater reach of the upper Colorado River, Colorado (39°N, 109°W). Radiotelemetry showed that roundtail chub
Lynn R. Kaeding +3 more
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Abstract Gonadosomatic indices (100 × gonad weight/whole-body weight) and the occurrence of expressible gametes indicated a temporal overlap in the spawning of humpback chub Gila cypha and roundtail chub G. robusta at Black Rocks, a turbulent, deepwater reach of the upper Colorado River, Colorado (39°N, 109°W). Radiotelemetry showed that roundtail chub
Lynn R. Kaeding +3 more
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Steroidogenesis in Ovarian Follicles of Chub Mackerel, Scomber japonicus
Zoological Science, 2005We incubated different radiolabeled steroid precursors with intact chub mackerel ovarian follicles to clarify the synthetic pathways of steroid hormones during vitellogenesis and following final oocyte maturation (FOM). During vitellogenesis, estradiol-17beta (E2) was synthesized from pregnenolone via 17-hydroxypregnenolone, 17-hydroxyprogesterone ...
Michiya, Matsuyama +5 more
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Spawning and Culture of Humpback Chub
The Progressive Fish-Culturist, 1982Abstract During 1981, humpback chub (Gila cypha) were spawned and cultured at Willow Beach (Arizona) National Fish Hatchery. This species is listed as endangered by the U.S. Fish and Wildlife Service. Seventeen wild females ovulated after injection with 4 mg acetone-dried carp pituitary per kilogram of body weight. Eight females were stripped manually,
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Didymozoids in Muscle of Atlantic Chub Mackerel (Scomber colias)
Acta Parasitologica, 2019Digenean trematodes of the family Didymozoidae are tissue parasites that are particularly common in scombrid fish. These parasites can reduce the commercial value of fish, especially the ones occurring in the muscle.In the present study and for the first time, we report the occurrence of didymozoids in muscle tissue of Atlantic chub mackerel (Scomber ...
Rita Mota +5 more
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Molecular Ecology Notes, 2002
AbstractPrimers were developed for 17 microsatellite loci from an enriched (GATA)n library from DNA from Gila bicolor obesa. These primers were tested for cross‐species amplification in Gila bicolor snyderi, Gila orcutti and Gila coerulea.
Erin P. Meredith, Bernie May
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AbstractPrimers were developed for 17 microsatellite loci from an enriched (GATA)n library from DNA from Gila bicolor obesa. These primers were tested for cross‐species amplification in Gila bicolor snyderi, Gila orcutti and Gila coerulea.
Erin P. Meredith, Bernie May
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Chub Mackerel (Pacific Chub Mackerel, Scomber japonicus)
2021Igor S. Zonn +4 more
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PREDATION BY OSPREY ON ENDANGERED HUMPBACK CHUB
1993(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Wasowicz, Anthony, Yard, Helen
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