51 results match your criteria three-spine stickleback

Divergent Response to the SSRI Citalopram in Male and Female Three-Spine Sticklebacks (Gasterosteus aculeatus).

Arch Environ Contam Toxicol 2020 Nov 5;79(4):478-487. Epub 2020 Nov 5.

School of Natural Sciences, Technology and Environmental Studies, Södertörn University, Alfred Nobels allé 7, 141 89, Huddinge, Sweden.

Selective serotonin reuptake inhibitors (SSRIs) are psychotropic pharmaceuticals used as antidepressants. SSRIs are commonly found in surface waters in populated areas across the globe. They exert their effect by blocking the serotonin re-uptake transporter in the presynaptic nerve ending. Read More

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November 2020

The ecological stage changes benefits of mate choice and drives preference divergence.

Philos Trans R Soc Lond B Biol Sci 2020 08 13;375(1806):20190546. Epub 2020 Jul 13.

Department of Integrative Biology and Ecology, Evolutionary Biology, and Behavior Program, Michigan State University, East Lansing, MI, USA.

Preference divergence is thought to contribute to reproductive isolation. Ecology can alter the way selection acts on female preferences, making them most likely to diverge when ecological conditions vary among populations. We present a novel mechanism for ecologically dependent sexual selection, termed 'the ecological stage' to highlight its ecological dependence. Read More

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The role of variation and plasticity in parental care during the adaptive radiation of three-spine sticklebacks.

Evolution 2019 05 25;73(5):1037-1044. Epub 2019 Mar 25.

Department of Animal Biology, University of Illinois Urbana-Champaign, Urbana, Illinois, 61801.

Phenotypic plasticity might influence evolutionary processes such as adaptive radiations. Plasticity in parental care might be especially effective in facilitating adaptive radiations if it allows populations to persist in novel environments. Here, we test the hypothesis that behavioral plasticity by parents in response to predation risk facilitated the adaptive radiation of three-spine sticklebacks. Read More

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Ultrastructure Study of the Stored Lipid Reserves in (Monogenea) Using Confocal and Transmission Electron Microscopy.

J Microsc Ultrastruct 2018 Apr-Jun;6(2):65-71

Departamento de Ciencias Biológicas, Unidad Regional Mazatlán, Universidad Autónoma de Occidente, Flamingos, 82149 Mazatlan, Sinaloa, Mexico.

This study examines the distribution and depletion of stored lipids in Gläser, 1974, migrating off its three-spine stickleback host L., with the prospect that it might prove informative for interpreting the biology of other gyrodactylids species more generally. Nonfeeding life cycle stages, such as the dispersal stages of parasites, are dependent for survival upon finite energy reserves gathered during feeding phases. Read More

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September 2018

Individual variation in the compromise between social group membership and exposure to preferred temperatures.

Proc Biol Sci 2018 06;285(1880)

Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Graham Kerr Building, Glasgow G12 8QQ, UK

Group living is widespread among animal species, and comes with a number of costs and benefits associated with foraging, predator avoidance and reproduction. It is largely unknown, however, whether individuals sacrifice exposure to their own preferred or optimal environmental conditions so they can remain part of a social group. Here, we demonstrate that individual three-spine sticklebacks vary in the degree to which they forego exposure to their preferred ambient temperature so they can associate with a group of conspecifics. Read More

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Gene Expression in the Three-Spined Stickleback (Gasterosteus aculeatus) of Marine and Freshwater Ecotypes.

Acta Naturae 2018 Jan-Mar;10(1):66-74

National Research Center "Kurchatov Institute", Kurchatov Sq. 1, Moscow, 123182, Russia.

Three-spine stickleback is a well-known model organism that is routinely used to explore microevolution processes and speciation, and the number of studies related to this fish has been growing recently. The main reason for the increased interest is the processes of freshwater adaptation taking place in natural populations of this species. Freshwater three-spined stickleback populations form when marine water three-spined sticklebacks fish start spending their entire lifecycle in freshwater lakes and streams. Read More

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Body macronutrient composition is predicted by lipid and not protein content of the diet.

Ecol Evol 2017 12 22;7(23):10056-10065. Epub 2017 Oct 22.

School of Biological Sciences Institute of Evolutionary Biology University of Edinburgh Edinburgh UK.

Diet is an important determinant of fitness-related traits including growth, reproduction, and survival. Recent work has suggested that variation in protein:lipid ratio and particularly the amount of protein in the diet is a key nutritional parameter. However, the traits that mediate the link between dietary macronutrient ratio and fitness-related traits are less well understood. Read More

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December 2017

Divergence of insulin superfamily ligands, receptors and Igf binding proteins in marine versus freshwater stickleback: Evidence of selection in known and novel genes.

Comp Biochem Physiol Part D Genomics Proteomics 2018 03 10;25:53-61. Epub 2017 Nov 10.

Department of Biology, The University of Winnipeg, Winnipeg, MB, Canada; Department of Biology, The University of Manitoba, Winnipeg, MB, Canada. Electronic address:

Three-spine stickleback (Gasterosteus aculeatus) is a teleost model for understanding genetic, physiological and morphological changes accompanying freshwater (FW) adaptation. There is growing evidence that the insulin superfamily plays important roles in traits involved in marine and FW adaptation. We performed a candidate gene analysis to look for evidence of selection on 33 insulin superfamily ligand-receptor genes and insulin-like growth factor binding proteins (Igfbp's) in stickleback. Read More

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Developmental exposure to the SSRI citalopram causes long-lasting behavioural effects in the three-spined stickleback (Gasterosteus aculeatus).

Ecotoxicology 2018 Jan 23;27(1):12-22. Epub 2017 Oct 23.

School of Natural Sciences, Technology and Environmental Studies, Södertörn University, Alfred Nobels allé 7, SE-141 89, Huddinge, Sweden.

Selective Serotonin re-uptake inhibitors (SSRIs) are a class of psychotropic drugs used to treat depression in both adolescents and pregnant or breast-feeding mothers as well as in the general population. Recent research on rodents points to long-lasting behavioural effects of pre- and perinatal exposure to SSRIs which last into adulthood. In fish however, studies on effects of developmental exposure to SSRIs appears to be non-existent. Read More

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January 2018

Local interactions and global properties of wild, free-ranging stickleback shoals.

R Soc Open Sci 2017 Jul 12;4(7):170043. Epub 2017 Jul 12.

School of Biology, University of St Andrews, St Andrews, UK.

Collective motion describes the global properties of moving groups of animals and the self-organized, coordinated patterns of individual behaviour that produce them. We examined the group-level patterns and local interactions between individuals in wild, free-ranging shoals of three-spine sticklebacks, . Our data reveal that the highest frequencies of near-neighbour encounters occur at between one and two body lengths from a focal fish, with the peak frequency alongside a focal individual. Read More

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Plasticity contributes to a fine-scale depth gradient in sticklebacks' visual system.

Mol Ecol 2017 Aug 24;26(16):4339-4350. Epub 2017 Jun 24.

Department of Integrative Biology, University of Texas at Austin, Austin, TX, USA.

The light environment influences an animal's ability to forage, evade predators, and find mates, and consequently is known to drive local adaptation of visual systems. However, the light environment may also vary over fine spatial scales at which genetic adaptation is difficult. For instance, in aquatic systems, the available wavelengths of light change over a few metres depth. Read More

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Fish Parasite Dinoflagellates Haidadinium ichthyophilum and Piscinoodinium Share a Recent Common Ancestor.

J Eukaryot Microbiol 2018 01 19;65(1):127-131. Epub 2017 Jun 19.

Canadian Institute for Advanced Research, Department of Botany, University of British Columbia, 3529-6270 University Boulevard, Vancouver, BC, V6T 1Z4, Canada.

The dinoflagellate Haidadinium ichthyophilum Buckland-Nicks, Reimchen and Garbary 1997 is an ectoparasite of the spine-deficient, three-spine stickleback Gasterosteus aculeatus L. Reimchen 1984, a fish endemic to Rouge Lake, Haida Gwaii. Haidadinium ichthyophilum proved difficult to assign taxonomically because its morphology and complex life cycle exhibited defining characteristics of both autotrophic and heterotrophic dinoflagellates, and was tentatively assigned to the Phytodiniales. Read More

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January 2018

Natural selection on MHC IIβ in parapatric lake and stream stickleback: Balancing, divergent, both or neither?

Mol Ecol 2017 Sep 26;26(18):4772-4786. Epub 2017 May 26.

Department of Integrative Biology, University of Texas at Austin, Austin, TX, USA.

Major histocompatibility complex (MHC) genes encode proteins that play a central role in vertebrates' adaptive immunity to parasites. MHC loci are among the most polymorphic in vertebrates' genomes, inspiring many studies to identify evolutionary processes driving MHC polymorphism within populations and divergence between populations. Leading hypotheses include balancing selection favouring rare alleles within populations, and spatially divergent selection. Read More

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September 2017

The time enzyme in melatonin biosynthesis in fish: Day/night expressions of three aralkylamine N-acetyltransferase genes in three-spined stickleback.

Comp Biochem Physiol A Mol Integr Physiol 2017 06 16;208:46-53. Epub 2017 Mar 16.

Department of Genetics and Marine Biotechnology, Institute of Oceanology, Polish Academy of Sciences, Powstańców Warszawy 55 Str., 81-712 Sopot, Poland.

In vertebrates, aralkylamine N-acetyltransferase (AANAT; EC 2.3.1. Read More

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The effect of top-predator presence and phenotype on aquatic microbial communities.

Ecol Evol 2017 03 8;7(5):1572-1582. Epub 2017 Feb 8.

Department of Surface Waters-Research and Management Center for Ecology, Evolution and Biogeochemistry Eawag Swiss Federal Institute of Aquatic Science and Technology Kastanienbaum Switzerland.

The presence of predators can impact a variety of organisms within the ecosystem, including microorganisms. Because the effects of fish predators and their phenotypic differences on microbial communities have not received much attention, we tested how the presence/absence, genotype, and plasticity of the predatory three-spine stickleback () influence aquatic microbes in outdoor mesocosms. We reared lake and stream stickleback genotypes on contrasting food resources to adulthood, and then added them to aquatic mesocosm ecosystems to assess their impact on the planktonic bacterial community. Read More

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Climate change alters the reproductive phenology and investment of a lacustrine fish, the three-spine stickleback.

Glob Chang Biol 2017 06 30;23(6):2308-2320. Epub 2016 Nov 30.

School of Aquatic and Fishery Sciences, University of Washington, Box 355020, Seattle, WA, 98195, USA.

High-latitude lakes are particularly sensitive to the effects of global climate change, demonstrating earlier ice breakup, longer ice-free seasons, and increased water temperatures. Such physical changes have implications for diverse life-history traits in taxa across entire lake food webs. Here, we use a five-decade time series from an Alaskan lake to explore effects of climate change on growth and reproduction of a widely distributed lacustrine fish, the three-spine stickleback (Gasterosteus aculeatus). Read More

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Ecosystem size matters: the dimensionality of intralacustrine diversification in Icelandic stickleback is predicted by lake size.

Ecol Evol 2016 08 29;6(15):5256-72. Epub 2016 Jun 29.

Aquatic Ecology and Evolution Institute of Ecology and Evolution University of Bern Baltzerstrasse 6CH-3012 Bern Switzerland; Department of Fish Ecology and Evolution EAWAG Swiss Federal Institute of Aquatic Science and Technology Center for Ecology, Evolution and Biogeochemistry CH-6047 Kastanienbaum Switzerland.

Cases of evolutionary diversification can be characterized along a continuum from weak to strong genetic and phenotypic differentiation. Several factors may facilitate or constrain the differentiation process. Comparative analyses of replicates of the same taxon at different stages of differentiation can be useful to identify these factors. Read More

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Waterborne citalopram has anxiolytic effects and increases locomotor activity in the three-spine stickleback (Gasterosteus aculeatus).

Aquat Toxicol 2016 Apr 19;173:19-28. Epub 2016 Jan 19.

Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Sweden.

Citalopram is an antidepressant drug, which acts by inhibiting the re-uptake of serotonin from the synaptic cleft into the pre-synaptic nerve ending. It is one of the most common drugs used in treatment of depression, it is highly lipophilic and frequently found in sewage treatment plant effluents and surface waters around the world. Citalopram and other selective serotonin re-uptake inhibitors have, at concentrations that occur in nature, been shown to have behavioural as well as physiological effects on fish and other animals. Read More

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The impact of selection, gene flow and demographic history on heterogeneous genomic divergence: three-spine sticklebacks in divergent environments.

Mol Ecol 2016 01 11;25(1):238-59. Epub 2015 Nov 11.

Department of Bioscience, Aarhus University, Ny Munkegade 114-116, DK-8000, Aarhus C, Denmark.

Heterogeneous genomic divergence between populations may reflect selection, but should also be seen in conjunction with gene flow and drift, particularly population bottlenecks. Marine and freshwater three-spine stickleback (Gasterosteus aculeatus) populations often exhibit different lateral armour plate morphs. Moreover, strikingly parallel genomic footprints across different marine-freshwater population pairs are interpreted as parallel evolution and gene reuse. Read More

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January 2016

Widespread positive but weak assortative mating by diet within stickleback populations.

Ecol Evol 2015 Aug 22;5(16):3352-63. Epub 2015 Jul 22.

Department of Integrative Biology, University of Texas at Austin One University Station C0990, Austin, Texas, 78712 ; Howard Hughes Medical Institute, University of Texas at Austin One University Station C0990, Austin, Texas, 78712.

Assortative mating - correlation between male and female traits - is common within populations and has the potential to promote genetic diversity and in some cases speciation. Despite its importance, few studies have sought to explain variation in the extent of assortativeness across populations. Here, we measure assortative mating based on an ecologically important trait, diet as inferred from stable isotopes, in 16 unmanipulated lake populations of three-spine stickleback. Read More

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Covarying variances: more morphologically variable populations also exhibit more diet variation.

Oecologia 2015 May 6;178(1):89-101. Epub 2015 Feb 6.

Department of Ecology, Evolution and Behavior, University of Texas at Austin, Austin, TX, 78712, USA,

Many ecologically generalized populations are composed of relatively specialized individuals that selectively consume a subset of their population's diet, a phenomenon known as 'individual specialization'. The Niche Variation Hypothesis posits that this individual specialization can arise during ecological release if niche expansion occurs mainly through diet divergence among individuals, leading to greater morphological variation. Most tests of this hypothesis have searched for correlations between niche width and morphological variance, but this approach rests on the untested assumption that within-population morphological diversity is highly correlated with ecological diversity. Read More

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Environmentally relevant concentrations of citalopram partially inhibit feeding in the three-spine stickleback (Gasterosteus aculeatus).

Aquat Toxicol 2015 Jan 18;158:165-70. Epub 2014 Nov 18.

Department of Natural Sciences, Environment and Technology, Södertörn University, SE-14189 Huddinge, Sweden.

Selective Serotonin Re-uptake Inhibitors (SSRI) are mood-altering, psychotropic drugs commonly used in the treatment of depression and other psychological illnesses. Many of them are poorly degraded in sewage treatment plants and enter the environment unaltered. In laboratory studies, they have been demonstrated to affect a wide range of behaviours in aquatic organisms. Read More

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January 2015

Interactive effects of pesticide exposure and habitat structure on behavior and predation of a marine larval fish.

Ecotoxicology 2015 Mar 25;24(2):391-400. Epub 2014 Nov 25.

Department of Biology and Coastal and Marine Institute, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182-4614, USA,

Coastal development has generated multiple stressors in marine and estuarine ecosystems, including habitat degradation and pollutant exposure, but the effects of these stressors on the ecology of fishes remain poorly understood. We studied the separate and combined effects of an acute 4 h sublethal exposure of the pyrethroid pesticide esfenvalerate and structural habitat complexity on behavior and predation risk of larval topsmelt (Atherinops affinis). Larvae were exposed to four nominal esfenvalerate concentrations (control, 0. Read More

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Contemporary ecotypic divergence during a recent range expansion was facilitated by adaptive introgression.

J Evol Biol 2014 Oct 16;27(10):2233-48. Epub 2014 Sep 16.

Institute for Ecology & Evolution, University of Bern, Bern, Switzerland; Department of Fish Ecology, EAWAG Center for Ecology, Evolution and Biogeochemistry, Kastanienbaum, Switzerland.

Although rapid phenotypic evolution during range expansion associated with colonization of contrasting habitats has been documented in several taxa, the evolutionary mechanisms that underlie such phenotypic divergence have less often been investigated. A strong candidate for rapid ecotype formation within an invaded range is the three-spine stickleback in the Lake Geneva region of central Europe. Since its introduction only about 140 years ago, it has undergone a significant expansion of its range and its niche, now forming phenotypically differentiated parapatric ecotypes that occupy either the pelagic zone of the large lake or small inlet streams, respectively. Read More

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October 2014

Length and GC content variability of introns among teleostean genomes in the light of the metabolic rate hypothesis.

PLoS One 2014 5;9(8):e103889. Epub 2014 Aug 5.

Genome Evolution and Organization - Dept. Animal Physiology and Evolution, Stazione Zoologica Anton Dohrn, Villa Comunale, Napoli, Italy.

A comparative analysis of five teleostean genomes, namely zebrafish, medaka, three-spine stickleback, fugu and pufferfish was performed with the aim to highlight the nature of the forces driving both length and base composition of introns (i.e., bpi and GCi). Read More

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Strong personalities, not social niches, drive individual differences in social behaviours in sticklebacks.

Anim Behav 2014 Apr;90:287-295

School of Integrative Biology, University of Illinois, Urbana, IL, U.S.A.

Understanding the mechanisms responsible for consistent individual differences in behaviour is a recent challenge for behavioural ecology. Although theory is rapidly developing in this area, there are few empirical tests. There are at least two hypotheses to explain why individuals behave differently from one another in a dynamic social environment. Read More

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Ecological and evolutionary effects of stickleback on community structure.

PLoS One 2013 3;8(4):e59644. Epub 2013 Apr 3.

Department of Biological Sciences, University of Idaho, Moscow, Idaho, United States of America.

Species' ecology and evolution can have strong effects on communities. Both may change concurrently when species colonize a new ecosystem. We know little, however, about the combined effects of ecological and evolutionary change on community structure. Read More

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October 2013

Mixed-phenotype grouping: the interaction between oddity and crypsis.

Oecologia 2013 May 19;172(1):59-68. Epub 2012 Oct 19.

School of Biology, University of Leeds, Leeds, UK.

Aggregations of different-looking animals are frequently seen in nature, despite well-documented selection pressures on individuals to maintain phenotypically homogenous groups. Two well-known theories, the 'confusion effect' (reduced ability of a predator to accurately target an individual in a group) and the 'oddity effect' (preferential targeting of phenotypically distinct, 'odd', individuals) act together to predict the evolution of behaviours in prey that lead to groups of animals that are homogeneous in appearance. In contrast, a recently proposed mechanism suggests that mixed groups could be maintained if one species in a mixed group is more conspicuous against the habitat than the other, as confusion effects generated by the conspicuous species impede predator targeting of the cryptic species; thus, cryptic species benefit from association with conspicuous ones. Read More

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Accumulation and rapid decay of non-LTR retrotransposons in the genome of the three-spine stickleback.

Genome Biol Evol 2012 25;4(5):687-702. Epub 2012 Apr 25.

Department of Biology, Queens College, City University of New York, Flushing, NY, USA.

The diversity and abundance of non-long terminal repeat (LTR) retrotransposons (nLTR-RT) differ drastically among vertebrate genomes. At one extreme, the genome of placental mammals is littered with hundreds of thousands of copies resulting from the activity of a single clade of nLTR-RT, the L1 clade. In contrast, fish genomes contain a much more diverse repertoire of nLTR-RT, represented by numerous active clades and families. Read More

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Integration of an invasive consumer into an estuarine food web: direct and indirect effects of the New Zealand mud snail.

Oecologia 2011 Sep 30;167(1):169-79. Epub 2011 Mar 30.

Department of Environmental Science and Policy, University of California Davis, Davis, CA 95616, USA.

Introduced species interact both directly and indirectly with native species. We examine interactions between the introduced New Zealand mud snail (Potamopyrgus antipodarum) and native estuarine invertebrates and predators through experiments and field studies. A widely held management concern is that when P. Read More

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September 2011