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Relevant bibliographies by topics / Hemichromis

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Academic literature on the topic 'Hemichromis'

Author: Grafiati

Published: 4 June 2021

Last updated: 18 February 2022

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Journal articles on the topic "Hemichromis"

1

Jorissen, Michiel W. P., Antoine Pariselle, Tine Huyse, Emmanuel J. Vreven, Jos Snoeks, Eva Decru, Thomas Kusters, et al. "Six new dactylogyrid species (Platyhelminthes, Monogenea) from the gills of cichlids (Teleostei, Cichliformes) from the Lower Congo Basin." Parasite 25 (2018): 64. http://dx.doi.org/10.1051/parasite/2018059.

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The Lower Congo Basin is characterized by a mangrove-lined estuary at its mouth and, further upstream, by many hydrogeographical barriers such as rapids and narrow gorges. Five localities in the mangroves and four from (upstream) left bank tributaries or pools were sampled. On the gills of Coptodon tholloni, Coptodon rendalli, Hemichromis elongatus, Hemichromis stellifer and Tylochromis praecox, 17 species of parasites (Dactylogyridae & Gyrodactylidae, Monogenea) were found, eight of which are new to science. Six of these are herein described: Cichlidogyrus bixlerzavalai n. sp. and Cichlidogyrus omari n. sp. from T. praecox, Cichlidogyrus calycinus n. sp. and Cichlidogyrus polyenso n. sp. from H. elongatus, Cichlidogyrus kmentovae n. sp. from H. stellifer and Onchobdella ximenae n. sp. from both species of Hemichromis. On Cichlidogyrus reversati a ridge on the accessory piece was discovered that connects to the basal bulb of the penis. We report a putative spillback effect of the native parasites Cichlidogyrus berradae, Cichlidogyrus cubitus and Cichlidogyrus flexicolpos from C. tholloni to the introduced C. rendalli. From our results, we note that the parasite fauna of Lower Congo has a higher affinity with the fauna of West African and nearby freshwater ecoregions than it has with fauna of other regions of the Congo Basin and Central Africa.

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2

Mannu, F., P. Arese, MD Cappellini, G. Fiorelli, M. Cappadoro, G. Giribaldi, and F. Turrini. "Role of hemichrome binding to erythrocyte membrane in the generation of band-3 alterations in beta-thalassemia intermedia erythrocytes." Blood 86, no. 5 (September 1, 1995): 2014–20. http://dx.doi.org/10.1182/blood.v86.5.2014.bloodjournal8652014.

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Nine splenectomized, hematologically well-compensated beta-thalassemia intermedia patients randomly chosen from a pool of 60 similar patients were studied. Membrane proteins solubilized with nondenaturing detergent C12E8 were gel filtered on Sepharose CL-6B (Pharmacia Fine Chemicals, Uppsala, Sweden). Fractions containing higher than 4,000-kD molecular-weight aggregates were isolated and analyzed. Four patients had remarkably increased amounts of membrane-bound hemichromes and Igs. In those patients, band 3 underwent oxidative modifications such as aggregation and a decrease in sulfhydryl groups. The other five patients had low amounts of membrane-bound hemichromes and less modifications of band 3. The same band-3 modifications could be reproduced by challenging normal membranes with artificially generated hemichromes or with hemolysates prepared from thalassemic erythrocytes of the high-hemichrome group. Addition of reduced glutathione to the challenged membranes did not hinder hemichrome binding, but prevented oxidative modifications of band 3 and Ig binding to high-molecular- weight band-3 aggregates. Hemichrome binding to band 3, hemichrome- mediated oxidation of band-3 cytoplasmic domains, generation of high- molecular-weight band-3 aggregates, and enhanced opsonization by anti- band-3 antibodies is a possible sequence of events leading to phagocytic removal of erythrocytes in thalassemia.

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3

Kühme, Wolfdietrich. "Chemisch ausgelöste Brutpflege- und Schwarmreaktionen bei Hemichromis bimaculatus (Pisces)." Zeitschrift für Tierpsychologie 20, no. 6 (April 26, 2010): 688–704. http://dx.doi.org/10.1111/j.1439-0310.1963.tb01183.x.

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4

Burchard, John, and Wolfgang Wickler. "Eine neue Form des Cichliden Hemichromis fasciatus PETERS (Pisces: Perciformes)." Journal of Zoological Systematics and Evolutionary Research 3, no. 3-4 (April 27, 2009): 277–83. http://dx.doi.org/10.1111/j.1439-0469.1965.tb00941.x.

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5

Hyslop, E. J. "First occurrence of Acanthogyrus tilapiae (Baylis 1948) in Hemichromis species." Journal of Fish Biology 33, no. 3 (September 1988): 491–92. http://dx.doi.org/10.1111/j.1095-8649.1988.tb05491.x.

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6

Huysseune, Ann, and Jean-Yves Sire. "Ultrastructural observations on chondroid bone in the teleost fish Hemichromis bimaculatus." Tissue and Cell 22, no. 3 (January 1990): 371–83. http://dx.doi.org/10.1016/0040-8166(90)90011-w.

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7

Tsamesidis, Ioannis, Karine Reybier, Giuseppe Marchetti, Maria Carmina Pau, Patrizia Virdis, Claudio Fozza, Francoise Nepveu, Philip S. Low, Francesco Michelangelo Turrini, and Antonella Pantaleo. "Syk Kinase Inhibitors Synergize with Artemisinins by Enhancing Oxidative Stress in Plasmodium falciparum-Parasitized Erythrocytes." Antioxidants 9, no. 8 (August 14, 2020): 753. http://dx.doi.org/10.3390/antiox9080753.

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Although artemisinin-based combination therapies (ACTs) treat Plasmodium falciparum malaria effectively throughout most of the world, the recent expansion of ACT-resistant strains in some countries of the Greater Mekong Subregion (GMS) further increased the interest in improving the effectiveness of treatment and counteracting resistance. Recognizing that (1) partially denatured hemoglobin containing reactive iron (hemichromes) is generated in parasitized red blood cells (pRBC) by oxidative stress, (2) redox-active hemichromes have the potential to enhance oxidative stress triggered by the parasite and the activation of artemisinin to its pharmaceutically active form, and (3) Syk kinase inhibitors block the release of membrane microparticles containing hemichromes, we hypothesized that increasing hemichrome content in parasitized erythrocytes through the inhibition of Syk kinase might trigger a virtuous cycle involving the activation of artemisinin, the enhancement of oxidative stress elicited by activated artemisinin, and a further increase in hemichrome production. We demonstrate here that artemisinin indeed augments oxidative stress within parasitized RBCs and that Syk kinase inhibitors further increase iron-dependent oxidative stress, synergizing with artemisinin in killing the parasite. We then demonstrate that Syk kinase inhibitors achieve this oxidative enhancement by preventing parasite-induced release of erythrocyte-derived microparticles containing redox-active hemichromes. We also observe that Syk kinase inhibitors do not promote oxidative toxicity to healthy RBCs as they do not produce appreciable amounts of hemichromes. Since some Syk kinase inhibitors can be taken daily with minimal side effects, we propose that Syk kinase inhibitors could evidently contribute to the potentiation of ACTs.

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8

Coss, Richard G. "Development of Face Aversion by the Jewel Fish (Hemichromis bimaculatus, Gill 1862)." Zeitschrift für Tierpsychologie 48, no. 1 (April 26, 2010): 28–46. http://dx.doi.org/10.1111/j.1439-0310.1978.tb00246.x.

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9

Hyslop, E. J. "Aspects of the biology of Hemichromis bimaculatus from a small stream in Nigeria." Journal of Fish Biology 31, no. 6 (December 1987): 745–51. http://dx.doi.org/10.1111/j.1095-8649.1987.tb05277.x.

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10

Belfiore, Natalia M., and Pamela J. Schofield. "Genetic Characterization of Non-Native African Jewelfish, Hemichromis letourneuxi Sauvage 1880, in Florida." Southeastern Naturalist 18, no. 4 (November 1, 2019): 561. http://dx.doi.org/10.1656/058.018.0406.

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Dissertations / Theses on the topic "Hemichromis"

1

Sire, Jean-Yves. "Structure, formation et régénération des écailles d'un poisson téléostéen, Hemichromis bimaculatus (Perciforme, Cichlide)." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37609962k.

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2

Sire, Jean-Yves. "Structure, formation et regeneration des ecailles d'un poisson teleosteen, hemichromis bimaculatus (perciforme, cichlide)." Paris 7, 1987. http://www.theses.fr/1987PA077162.

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Les differents aspects de la biologie de l'ecaille elasmoide ont ete precises chez le cichlide hemichromis bimaculatus, a l'aide de techniques histo/morphologiques et experimentales. Les resultats permettent de considerer ce materiel comme un modele favorable pour l'etude: de la mise en place d'une matrice collagenique orientee, de la mineralisation d'une telle trame organique, d'interactions epidermo-dermiques (en ontogenese ou en regeneration) et de l'origine phylogenetique de l'ecaille elasmoide

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3

Dunlop, Katherine Leigh. "Antipredator Responses to the Non-Native African Jewelfish, Hemichromis letourneuxi, by Naive Everglades Prey." NSUWorks, 2011. http://nsuworks.nova.edu/occ_stuetd/205.

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Novel predator introductions are thought to have a significant impact on the survival and fitness of naïve prey, especially in freshwater systems. The ability of prey to recognize and respond appropriately to these novel threats may depend on the prey’s use of general or specific cues to detect predation threats. We used laboratory behavioral experiments to examine the ability of three native Everglades prey species (Eastern mosquitofish, Gambusia holbrooki, flagfish, Jordanella floridae, and riverine grass shrimp, Palaemonetes paludosus) to respond to the presence and to the sensory cues of a native predator (warmouth, Lepomis gulosus) and those of a recently introduced non-native predator (African jewelfish, Hemichromis letourneuxi). Specifically we examined: (1) the predation threat of the non-native jewelfish (2) the combined mortality affect of the native and non-native predator (3) the ability of the prey to respond the non-native predator and (4) the prey species use of chemical and visual cues to detect predation threats. Despite its novelty, our results indicated that the native warmouth and non-native jewelfish had similar predatory effects, although these effects may be somewhat prey specific. For mosquitofish, the novel predator represented less of a predation risk, while predation rates were similar for flagfish and grass shrimp. All three prey species showed surprisingly strong responses to the non-native jewelfish, which were comparable to the responses exhibited to the native predator. This would suggest that prey are relying on general cues for predator detection. However, during the predator cue experiments two of the naïve prey species, mosquitofish and flagfish, were able to respond to the specific chemical cues of the non-native predator with an equal intensity to that of the native predator. These broad response may indicate that some native Everglades prey have a greater behavioral plasticity or more experience with novel predators that allow them to detect and respond to a novel predation threat.

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Trujillo, Vanessa. "Jewels for Dollars: Native and Nonnative Freshwater Fish Interactions in a Stressful Dry Down Environment." FIU Digital Commons, 2017. http://digitalcommons.fiu.edu/etd/3212.

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Vertebrate populations are subjected to novel anthropogenic stressors that are expected to multiply exponentially in the future. Introductions of nonnative species and human-altered hydrology are among these stressors to native species communities. The Rocky Glades, located in Everglades National Park, may serve as a population sink for native species that typically do not survive the altered hydrology of the dry season, and as a source of nonnative species that may be better adapted to chronically stressful conditions. In the seasonally-flooded Everglades, the nonnative African Jewelfish invaded in the 1960s and has since shown rapid range expansion. African Jewelfish are aggressive and territorial, thus they are predicted to be more successful at acquiring space and resources, and may displace native Sunfishes. I monitored assemblages of fish across time in experimental mesocosms and solution holes and quantified survivorship and body condition of both natives and nonnatives. Overall, native Sunfish did poorly while nonnatives had higher survivorship over the course of the dry season. Unexpectedly, no evidence indicated that Jewelfish reduced survival of native Sunfish. I compared aggressive interactions between native Dollar Sunfish and nonnative African Jewelfish in Sunfish populations either sympatric or allopatric with Jewelfish. Sympatric Dollar Sunfish were twice as likely to approach African Jewelfish as allopatric ones. My study suggests native species can survive invasion through behavioral adaptation to nonnative competitors. Characterizing interactions between native and nonnative species and identifying their niche use can assist in understanding the challenges of native species conservation in the face of species invasions.

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Dugan, Laura Elizabeth. "Invasion risk and impacts of a popular aquarium trade fish and the implications for policy and conservation management." Thesis, 2014. http://hdl.handle.net/2152/26902.

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Invasive species, a top threat affecting global biodiversity, become invasive through a process including four stages: transport, establishment, spread, impact and integration. Species currently in this process provide opportunities to empirically derive the mechanisms driving each of these stages, make predictions based on these mechanisms and then to test these predictions. This research examines the current invaded distribution, potential invasion and community-level impacts of a popular aquarium trade fish (Hemichromis guttatus Günther, 1862) in an endemic hotspot, Cuatro Ciénegas, in Coahuila, México and discusses the policy and conservation management implications of these findings. In Chapter 1, the problem of invasive species, the study site and the focal species of this work are introduced. In Chapter 2, the critical thermal minimum and maximum temperature limits and temperature preference of H. guttatus are identified because temperature is hypothesized to be an important factor controlling this fish’s distribution. The results indicate that H. guttatus has a wide temperature tolerance range (a characteristic of a ‘good’ invader), that preference is a more informative metric for predicting invasion than absolute tolerances, and that resource-poor environments may promote searching behaviors that cause an invasive fish to increase its range. In Chapter 3, the results of a field survey are analyzed and temperature, pH, depth and the presence of vegetation are all found to be related to H. guttatus presence. Invasion risk of several as-of-yet uninvaded sites in Cuatro Ciénegas is assessed. In Chapter 4, competitive and predatory interactions of H. guttatus on an endemic, threatened cichlid (Herichthys minckleyi) and a macroinvertebrate community respectively are investigated. The results suggest that while H. guttatus does not directly impact H. minckleyi through competition in these conditions, it may inhibit reproduction and alter H. minckleyi’s behavior through aggressive interactions. In Chapter 5, all results are synthesized and a determination of the invasive status of H. guttatus in Cuatro Ciénegas is made. The results presented here will be useful in identifying areas with a high risk of invasion by this popular ornamental fish, thus allowing the implementation of policy and management actions to prevent or at least ameliorate the impacts of an invasion and will add to the growing knowledge of how invasive species affect native systems.
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Book chapters on the topic "Hemichromis"

1

Ioannou, Aristodimos, and Constantinos Varotsis. "Reaction of Hemoglobin With the Schiff Base Intermediate of the Glucose/Asparagine Reaction: Formation of a Hemichrome." In Polyphenols in Plants, 317–25. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-813768-0.00017-7.

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