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Dataset results
27 results for “Fundulus heteroclitus”
Mummichog (Fundulus heteroclitus) counts and gut content analysis from lift trap transect collections along Rowley River tidal creeks associated with long term fertilization experiments, Rowley, MA.
The lift traps were used to capture mummichogs accessing the high marsh platform. Mummichogs were collected to study the effect of marsh-edge geomorphology on mummichog distribution and foraging. The TIDE project aims to simulate eutrophication on a large scale by the addition of NO3- aiming to reach 70μM concentrations from May to September every year during the growing season. This fertilization of the marsh has been going on at Sweeney Creek since the 2004 growing season through 2016 and at Clubhead Creek in 2005 and from 2009 till 2016. Years 2017-2020 are enrichment recovery years.
Mummichog (Fundulus heteroclitus) gut content analysis from Breder trap transect collections in tidal creeks associated with long term fertilization experiments, Rowley, MA.
At PIE, mummichog (Fundulus heteroclitus) use the spring-cycle high tides to access the flooded high marsh platform and eat invertebrate prey, coupling the high marsh and aquatic creek food webs by gathering energy produced on the high marsh and making it available to the aquatic food web. Changes in the geomorphology of saltmarsh creek edges greatly influence the survival, biomass, and resource use of mummichog populations. Here we use gut content analysis assess the diet of mummichog on the high marsh platform during a flooding spring-cycle tide in July 2018 across 3 PIE creeks known to present different geomorphologic patterns in their low marsh zones. These data allow us to quantify the amount of terrestrial invertebrate prey mummichog consume on a single flooding tide and determine the impact altered low marsh geomorphology has on the trophic relationships in PIE food webs. These mummichog were captured in Breder traps; information about the consumer communities captured in these traps was recorded separately (LTE-TIDE-BrederTrap-Demographics). These data were included in part of the study “Habitat decoupling via saltmarsh creek geomorphology alters connection between spatially-coupled food webs” (Lesser et al. 2020) and were a portion of an MBL REU project.
Mummichog (Fundulus heteroclitus) caloric value analysis from various collections along Rowley River tidal creeks associated with long term fertilization experiments, Rowley, MA.
At PIE, mummichog (Fundulus heteroclitus) use the spring-cycle high tides to access the flooded high marsh platform and eat invertebrate prey, coupling the high marsh and aquatic creek food webs by gathering energy produced on the high marsh and making it available to the aquatic food web. Changes in the geomorphology of saltmarsh creek edges greatly influence the survival, biomass, and resource use of mummichog populations. Here, we use bomb calorimetry to assess individual mummichog caloric content per gram of biomass at 4 PIE creeks known to present different geomorphologic patterns in their low marsh zones. These data can be used for the assessment of the impact of low marsh geomorphology on mummichog caloric content and energy production in PIE food webs. These data were included as part of two studies “Habitat decoupling via saltmarsh creek geomorphology alters connection between spatially-coupled food webs” (Lesser et al. 2020) and “Cross-habitat access modifies the ‘trophic relay’ in New England saltmarsh ecosystems” (Lesser et al. 2021).
F I G U R E 3 in Scaling of fast-start performance and its thermal dependence in mummichog Fundulus heteroclitus
F I G U R E 3 Relationships between fast-start performance, body size (standard length), acclimation temperature, and test temperature in adult mummichogs. Graphs are arranged by performance variable in rows and by test temperature (24, 30, and 36 C) in columns. Colors indicate acclimation temperatures (blue is 24 C, purple is 30 C, and red is 36 C). Lines are the fitted performance–size relationships based on parameter estimates from best-fit mixed-effects models or model-averaged parameter estimates from supported models (see Table 1 and Table S3.). Effects of size on performance are apparent as nonzero slopes within individual graphs; effects of test temperature are evident as variation in average intercepts across test temperature graphs (i.e., comparing average intercepts for acclimation temperature–specific lines across columns within each row of graphs); effects of acclimation temperature are seen as differences in intercepts between acclimation temperature–specific lines within graphs; and interactions between size and temperature are apparent as variations in average slopes (i.e., averaged over acclimation-specific slopes) across test temperature graphs and as differences in acclimation temperature–specific slopes within graphs.
F I G U R E 1 in Scaling of fast-start performance and its thermal dependence in mummichog Fundulus heteroclitus
F I G U R E 1 Morphological scaling in mummichog ranging from YOY to larger adults. Morphological variables are body dimensions (top row) and median fin areas (bottom row), and standard length is a measure of the overall body size. All data were log transformed. Sample sizes for fin areas were reduced because individuals with damaged fins were not measured. Estimates for scaling coefficients (i.e., the slope of the scaling relationship, b1) ± 1 S.E. are given for each morphological variable. Isometric expectations for scaling coefficients are 1.0 for body dimensions and 2.0 for fin areas; only the caudal fin area deviates significantly from isometry.
F I G U R E 2 in Scaling of fast-start performance and its thermal dependence in mummichog Fundulus heteroclitus
F I G U R E 2 Representative kinematics for fast-starts in small (41 mm SL) and large (66 mm SL) adult mummichogs controlling for temperature. The top panel shows frames from high-speed videos at 10 ms intervals. To facilitate interpretation, original videos have been cropped to the same spatial dimensions and rotated to standardize starting orientation and escape direction (but note that digitization used unmodified videos). The graph in the bottom panel shows the angular displacement of the head (triangles) and the linear displacement of the fish center of mass (circles) for the trials depicted in the video frames, which were maximum performance trials for the small (filled shapes) and large (open shapes) fish tested at their acclimation temperature (24 C). The curve for head rotation was truncated at its maximum value to highlight the difference in time to form the initial C-bend. The curve for linear displacement continued until the end of stage 2 of the fast-start. Whereas small fish had higher rotation rates and executed the fast-start in less time, small and large fish moved their bodies over similar distances given equal amounts of time.
Data from: Genetic variation at aryl hydrocarbon receptor (AHR) loci in populations of Atlantic killifish (Fundulus heteroclitus) inhabiting polluted and reference habitats
Background: The non-migratory killifish Fundulus heteroclitus inhabits clean and polluted environments interspersed throughout its range along the Atlantic coast of North America. Several populations of this species have successfully adapted to environments contaminated with toxic aromatic hydrocarbon pollutants such as polychlorinated biphenyls (PCBs). Previous studies suggest that the mechanism of resistance to these and other "dioxin-like compounds" (DLCs) may involve reduced signaling through the aryl hydrocarbon receptor (AHR) pathway. Here we investigated gene diversity and evidence for positive selection at three AHR-related loci (AHR1, AHR2, AHRR) in F. heteroclitus by comparing alleles from seven locations ranging over 600 km along the northeastern US, including extremely polluted and reference estuaries, with a focus on New Bedford Harbor (MA, USA), a PCB Superfund site, and nearby reference sites. Results: We identified 98 single nucleotide polymorphisms within three AHR-related loci among all populations, including synonymous and nonsynonymous substitutions. Haplotype distributions were spatially segregated and F-statistics suggested strong population genetic structure at these loci, consistent with previous studies showing strong population genetic structure at other F. heteroclitus loci. Genetic diversity at these three loci was not significantly different in contaminated sites as compared to reference sites. However, for AHR2 the New Bedford Harbor population had significant FST values in comparison to the nearest reference populations. Tests for positive selection revealed ten nonsynonymous polymorphisms in AHR1 and four in AHR2. Four nonsynonymous SNPs in AHR1 and three in AHR2 showed large differences in base frequency between New Bedford Harbor and its reference site. Tests for isolation-by-distance revealed evidence for non-neutral change at the AHR2 locus. Conclusion: Together, these data suggest that F. heteroclitus populations in reference and polluted sites have similar genetic diversity, providing no evidence for strong genetic bottlenecks for populations in polluted locations. However, the data provide evidence for genetic differentiation among sites, selection at specific nucleotides in AHR1 and AHR2, and specific AHR2 SNPs and haplotypes that are associated with the PCB-resistant phenotype in the New Bedford Harbor population. The results suggest that AHRs, and especially AHR2, may be important, recurring targets for selection in local adaptation to dioxin-like aromatic hydrocarbon contaminants.
Data from: Targeted approach to identify genetic loci associated with evolved dioxin tolerance in Atlantic Killifish (Fundulus heteroclitus)
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Data from: The adaptive cline at Ldh (lactate dehydrogenase) in killifish Fundulus heteroclitus remains stationary after 40 years of warming estuaries
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Data from: Genetic variation at aryl hydrocarbon receptor (AHR) loci in populations of Atlantic killifish (Fundulus heteroclitus) inhabiting polluted and reference habitats
Open the record for dataset details and reuse information.
Technical Analysis of Fundulus heteroclitus cDNA Microarrays, experiment A
GEO Series GSE12858. Fundulus heteroclitus. 5 samples. Type: Expression profiling by array.
The acute transcriptome response of the midbrain/diencephalon to injury in the adult mummichog (Fundulus heteroclitus)
GEO Series GSE137451. Fundulus heteroclitus. 20 samples. Type: Expression profiling by high throughput sequencing.
Technical Analysis of Fundulus heteroclitus cDNA Microarrays, experiment B
GEO Series GSE12898. Fundulus heteroclitus. 8 samples. Type: Expression profiling by array.
Transcriptomic assessment of resistance to effects of an aryl hydrocarbon receptor (AHR) agonist in embryos of Atlantic killifish (Fundulus heteroclitus) from a marine Superfund site
GEO Series GSE25245. Fundulus heteroclitus. 72 samples. Type: Expression profiling by array.
Technical Analysis of Fundulus heteroclitus cDNA Microarrays
GEO Series GSE13687. Fundulus heteroclitus. 13 samples. Type: Expression profiling by array.
Gene expression and DNA methylation changes in response to hypoxia in toxicant-adapted Atlantic killifish (Fundulus heteroclitus)
GEO Series GSE278569. Fundulus heteroclitus. 53 samples. Type: Expression profiling by high throughput sequencing; Methylation profiling by high throughput sequencing.
MicroRNA profiling in Atlantic killifish (Fundulus heteroclitus)
GEO Series GSE70953. Fundulus heteroclitus. 4 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Profiling microRNA expression in Atlantic killifish (Fundulus heteroclitus) gill and responses to arsenic and hyperosmotic stress
GEO Series GSE118062. Fundulus heteroclitus. 24 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Transcriptomic assessment of PCB-resistance in Atlantic killifish (Fundulus heteroclitus) embryos from a marine Superfund site
GEO Series GSE86593. Fundulus heteroclitus. 6 samples. Type: Expression profiling by high throughput sequencing.
Fundulus heteroclitus exposed to Cr(III)
GEO Series GSE2807. Pseudopleuronectes americanus; Fundulus heteroclitus. 8 samples. Type: Expression profiling by array.
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