Results 121 to 130 of about 566 (147)
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Journal of Morphology, 2019
AbstractThe embryonic development of the bullseye puffer, Sphoeroides annulatus, was characterized on the basis of the theory of saltatory ontogeny. This theory predicts a correlative relationship between the ontogeny‐type in an altricial‐precocial spectrum and the habitat that a species occupies within an unstable‐stable environmental spectrum ...
Juan M. Martínez‐Brown +6 more
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AbstractThe embryonic development of the bullseye puffer, Sphoeroides annulatus, was characterized on the basis of the theory of saltatory ontogeny. This theory predicts a correlative relationship between the ontogeny‐type in an altricial‐precocial spectrum and the habitat that a species occupies within an unstable‐stable environmental spectrum ...
Juan M. Martínez‐Brown +6 more
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Journal of Parasitology, 2000
A new species of trichosomoidid nematodes, Huffmanela mexicana n. sp., is established on the basis of its egg morphology and biological characters. The dark-shelled, embryonated eggs of this histozoic parasite occur in masses in the inner layer of the swimbladder wall of the bullseye puffer fish Sphoeroides annulatus Jenyns, 1843 (Tetraodontidae ...
F, Moravec, E, Fajer-Avila
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A new species of trichosomoidid nematodes, Huffmanela mexicana n. sp., is established on the basis of its egg morphology and biological characters. The dark-shelled, embryonated eggs of this histozoic parasite occur in masses in the inner layer of the swimbladder wall of the bullseye puffer fish Sphoeroides annulatus Jenyns, 1843 (Tetraodontidae ...
F, Moravec, E, Fajer-Avila
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Journal of Thermal Biology
Ocean warming, driven by current anthropogenic climate change, affects the physiological responses of marine ectotherms, including Sphoeroides annulatus (bullseye puffer fish), a fish with aquaculture potential. This subtropical-tropical fish inhabits shallow estuarine and coastal environments along the eastern Pacific and is exposed to extreme ...
Ruth Garcia-Villarreal +5 more
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Ocean warming, driven by current anthropogenic climate change, affects the physiological responses of marine ectotherms, including Sphoeroides annulatus (bullseye puffer fish), a fish with aquaculture potential. This subtropical-tropical fish inhabits shallow estuarine and coastal environments along the eastern Pacific and is exposed to extreme ...
Ruth Garcia-Villarreal +5 more
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Fish Physiology and Biochemistry, 2003
Few mature female bullseye puffer have been observed to spawn in captivity. The ovary appears to develop to late vitellogenesis, but not to complete final oocyte maturation (FOM). Luteinizing hormone releasing hormone analogue (LHRHa) treatment induced the spawning of good quality eggs in both wild and captive brood fish.
N.J. Duncan +7 more
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Few mature female bullseye puffer have been observed to spawn in captivity. The ovary appears to develop to late vitellogenesis, but not to complete final oocyte maturation (FOM). Luteinizing hormone releasing hormone analogue (LHRHa) treatment induced the spawning of good quality eggs in both wild and captive brood fish.
N.J. Duncan +7 more
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Aquaculture, 2003
Mature bullseye puffer (Sphoeroides annulatus) fish were caught and taken into captivity. Fish with a mean oocyte diameter greater than 0.45 mm were divided equally into three experimental groups (n=11) that were treated with a saline injection (control), multiple injections of luteinizing hormone-releasing hormone analogue (LHRHa) (day 0—20 A gk g 1
Neil J. Duncan +3 more
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Mature bullseye puffer (Sphoeroides annulatus) fish were caught and taken into captivity. Fish with a mean oocyte diameter greater than 0.45 mm were divided equally into three experimental groups (n=11) that were treated with a saline injection (control), multiple injections of luteinizing hormone-releasing hormone analogue (LHRHa) (day 0—20 A gk g 1
Neil J. Duncan +3 more
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Aquaculture, 2004
The bullseye puffer (Sphoeroides annulatus) is a species with potential for aquaculture. However, preliminary studies on the biology and reproduction of the species in captivity have failed to produce consistent success at hatching. In this study, the effect of aeration and water treatment (filtration and ultraviolet (UV) sterilisation) on percentage ...
C Komar +4 more
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The bullseye puffer (Sphoeroides annulatus) is a species with potential for aquaculture. However, preliminary studies on the biology and reproduction of the species in captivity have failed to produce consistent success at hatching. In this study, the effect of aeration and water treatment (filtration and ultraviolet (UV) sterilisation) on percentage ...
C Komar +4 more
openaire +1 more source
Ocean & Coastal Management, 2016
Abstract Fishing is an important economic activity in Baja California Sur that creates thousands of jobs and provides high-quality food. Magdalena-Almejas Bay is a highly productive region that contributes an annual average close to 50% of state catches.
Miguel Ángel Ojeda-Ruiz +3 more
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Abstract Fishing is an important economic activity in Baja California Sur that creates thousands of jobs and provides high-quality food. Magdalena-Almejas Bay is a highly productive region that contributes an annual average close to 50% of state catches.
Miguel Ángel Ojeda-Ruiz +3 more
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Aquaculture, 2006
Abstract Hatchery-produced Sphoeroides annulatus were studied from fertilized egg until day 32 post-hatch to examine the digestive tract development and to evaluate its digestive capacity during the larval period. Fish larvae were progressively fed microalgae, rotifers, Artemia nauplii and a formulated microdiet.
Alejandra García-Gasca +3 more
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Abstract Hatchery-produced Sphoeroides annulatus were studied from fertilized egg until day 32 post-hatch to examine the digestive tract development and to evaluate its digestive capacity during the larval period. Fish larvae were progressively fed microalgae, rotifers, Artemia nauplii and a formulated microdiet.
Alejandra García-Gasca +3 more
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Aquaculture International, 2003
Two experiments were carried out to test microparticulate diets forweaning hatchery-produced larvae and juveniles of bullseye pufferSphoeroides annulatus. The diets were formulated with differentprotein sources: diet 1 with a combination of decapsulated cysts ofArtemia and fishmeal, and diet 2 with a combination offishmeal, squid, tuna gonad and shrimp
A. García-Ortega +2 more
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Two experiments were carried out to test microparticulate diets forweaning hatchery-produced larvae and juveniles of bullseye pufferSphoeroides annulatus. The diets were formulated with differentprotein sources: diet 1 with a combination of decapsulated cysts ofArtemia and fishmeal, and diet 2 with a combination offishmeal, squid, tuna gonad and shrimp
A. García-Ortega +2 more
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Journal of Fish Biology, 2005
Two cDNA fragments corresponding to a heat shock protein and a cell death receptor were isolated from the ovary of the bullseye puffer Sphoeroides annulatus that were arrested in vitellogenesis or induced to ovulate with LHRHa. A reduced expression of both genes was observed following injections of LHRHa, suggesting these genes may participate in ...
B. Barrón‐Vivanco +4 more
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Two cDNA fragments corresponding to a heat shock protein and a cell death receptor were isolated from the ovary of the bullseye puffer Sphoeroides annulatus that were arrested in vitellogenesis or induced to ovulate with LHRHa. A reduced expression of both genes was observed following injections of LHRHa, suggesting these genes may participate in ...
B. Barrón‐Vivanco +4 more
openaire +1 more source