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40 results for “sunfish”
Fig. 3 in Molecular and Morphological Identification of Mola Sunfish Specimens (Actinopterygii: Tetraodontiformes: Molidae) from the Indian Ocean
Fig. 3. Photographs of the clavus of the two specimens of Mola sp. A from Oman (A: OMMSFC 1085; B: OMMSTC 1097). Solid arrows indicate clavus fin rays. Open arrows indicate ossicles. The double-headed arrow indicates the width of the smooth band. Question marks indicate unclear ossicles.
Fig. 4 in Molecular and Morphological Identification of Mola Sunfish Specimens (Actinopterygii: Tetraodontiformes: Molidae) from the Indian Ocean
Fig. 4. Specimens of Mola sp. A as illustrated in earlier literature. A, OMMSFC 1085, 91.6 cm TL, fig. 1 (fresh) in Jawad et al. (2012); B, OMMSTC 1097, 135.0 cm TL, fig. 1 (fresh) in Jawad (2013); C, KMNH VR 100,123, 325.0 cm TL, fig. 2C (stuffed) in Sawai et al. (2015). Arrows indicate bumps developing with age. Scale bars: 10 cm. Redrawn with permission from Jawad et al. (2012), Jawad (2013), and Sawai et al. (2015).
Fig. 1 in Molecular and Morphological Identification of Mola Sunfish Specimens (Actinopterygii: Tetraodontiformes: Molidae) from the Indian Ocean
Fig. 1. Correspondence between species names of Mola sunfishes in previous studies. The dotted arrows indicate unclear relationships, while the solid arrows indicate clear relationships.
Identification of non-native populations and reconstruction of invasion routes in the Redbreast Sunfish Lepomis auritus
<p>Human-mediated introductions of non-native species are expected to increase globally and threaten native biodiversity. <em>Lepomis auritus</em> (Redbreast Sunfish), a carnivorous freshwater fish native to rivers in eastern North America, has been introduced far outside of its native range due to its popularity in recreational fisheries. However, poor documentation of introductions and lack of thorough ichthyofaunal surveys before the mid-20th century have complicated our understanding of the establishment and spread of non-native <em>L. auritus</em> over the past 90 years, precluding effective management. We conducted phylogenomic analyses using ddRAD data from 197 specimens of <em>L. auritus</em> collected throughout the known geographic range of the species to reconstruct the introduction history of the species. Our protocols allow for the reconstruction of complicated introduction routes and reveal that <em>L. auritus</em> in Texas is the result of a single-source introduction from the Suwannee River; the population in the upper Tennessee River has two sources of introduction from the Savannah River and the northeastern rivers that drain into the Atlantic Ocean; and the populations in the middle Tennessee River and the Mobile River Basin have sources from the upper Tennessee River system and the Apalachicola River Basin. Ecological and evolutionary investigations of the non-native populations of <em>L. auritus</em> will broaden the understanding of invasion dynamics in species of <em>Lepomis</em> and other non-native freshwater fishes in North America. Our study provides critical information for the conservation of native populations and invasive management of non-native populations of <em>L. auritus</em>.</p>
SUNFISH Platform Documentation - API Interfaces of Distributed Components
<p>This document summarizes the interfaces provided in the dataset used to generate and document APIs designed and applied in the SUNFISH components.</p>
Data from: Single target acuity for moving targets in the common sunfish (Lepomis gibbosus)
<p>The common sunfish (<em>Lepomis gibbosus</em>) likely relies on vision for many vital behaviors that require the perception of small objects such as detection of prey items or body marks of conspecifics. A previous study documented the single target acuity (STA) for stationary targets. Under many, if not most, circumstances, however, objects of interest are moving which is why the current study tested the effect of the ecologically relevant parameter motion on sunfish STA. The STA was determined in two sunfish for targets moving randomly at a velocity of 3.4 deg/s. The STA for moving targets (0.144±0.002 deg) was equal to the STA for stationary targets obtained from the same fish individuals under the experimental conditions of this/the previous study. Our results contribute to a comprehensive understanding of fish vision, extending the large data set available on grating acuity.</p>
Figure 1 in First record of a rare sunfish, Mola mola (Linnaeus, 1758) from coastal waters of West Bengal, India
Figure 1. Mola mola (Linnaeus 1758), MARC/ZSI/F4629, 780 mm.
Identification of non-native populations and reconstruction of invasion routes in the Redbreast Sunfish Lepomis auritus
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Data from: Single target acuity for moving targets in the common sunfish (Lepomis gibbosus)
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Data from: Ocean sunfish rewarm at the surface after deep excursions to forage for siphonophores
1. Ocean sunfish (Mola mola) were believed to be inactive jellyfish feeders because they are often observed lying motionless at the sea surface. Recent tracking studies revealed that they are actually deep divers, but there has been no evidence of foraging in deep water. Furthermore, the surfacing behaviour of ocean sunfish was thought to be related to behavioural thermoregulation, but there was no record of sunfish body temperature. 2. Evidence of ocean sunfish feeding in deep water was obtained using a combination of an animal-borne accelerometer and camera with a light source. Siphonophores were the most abundant prey items captured by ocean sunfish and were typically located at a depth of 50–200 m where the water temperature was <12°C. Ocean sunfish were diurnally active, made frequently deep excursions, and foraged mainly at 100–200-m depths during the day. 3. Ocean sunfish body temperatures were measured under natural conditions. The body temperatures decreased during deep excursions and recovered during subsequent surfacing periods. Heat-budget models indicated that the whole-body heat-transfer coefficient between sunfish and the surrounding water during warming was 3–7 times greater than that during cooling. These results suggest that the main function of surfacing is the recovery of body temperature, and the fish might be able to increase heat gain from the warm surface water by physiological regulation. 4. The thermal environment of ocean sunfish foraging depths was lower than their thermal preference (approx. 16–17°C). The behavioural and physiological thermoregulation enables the fish to increase foraging time in deep, cold water. 5. Feeding rate during deep excursions was not related to duration or depth of the deep excursions. Cycles of deep foraging and surface warming were explained by a foraging strategy, to maximize foraging time with maintaining body temperature by vertical temperature environment.
Data from: Brain transcriptional profiles of male alternative reproductive tactics and females in bluegill sunfish
Bluegill sunfish (Lepomis macrochirus) are one of the classic systems for studying male alternative reproductive tactics (ARTs) in teleost fishes. In this species, there are two distinct life histories: parental and cuckolder, encompassing three reproductive tactics, parental, satellite, and sneaker. The parental life history is fixed, whereas individuals who enter the cuckolder life history transition from sneaker to satellite tactic as they grow. For this study, we used RNAseq to characterize the brain transcriptome of the three male tactics and females during spawning to identify gene ontology (GO) categories and potential candidate genes associated with each tactic. We found that sneaker males had higher levels of gene expression differentiation compared to the other two male tactics. Sneaker males also had higher expression in ionotropic glutamate receptor genes, specifically AMPA receptors, compared to other males, which may be important for increased spatial working memory while attempting to cuckold parental males at their nests. Larger differences in gene expression also occurred among male tactics than between males and females. We found significant expression differences in several candidate genes that were previously identified in other species with ARTs and suggest a previously undescribed role for cAMP-responsive element modulator (crem) in influencing parental male behaviors during spawning.
FIGURE 4 in Response to Britz (2022) regarding the validity of the giant sunfish Mola alexandrini (Ranzani, 1834) (Teleostei: Molidae)
FIGURE 4. Preservation status and labels of two specimens of the genus Mola in the Museo di Zoologia dell' Università di Bologna, Italy (December 2013). (A) putative holotype of Mola alexandrini (PHMA) hanging on the museum wall; (B) the specimen label of the PHMA specimen; (C) holotype of Ozodura orsini in a glass display case; (D) The specimen label of the holotype of Oz. orsini.
FIGURE 2 in Response to Britz (2022) regarding the validity of the giant sunfish Mola alexandrini (Ranzani, 1834) (Teleostei: Molidae)
FIGURE 2. Similarities between (A) the bulgy clavus edge of the putative holotype of Mola alexandrini (PHMA) specimen at the Museo di Zoologia dell' Università di Bologna (MZUB), and (B) the clavus edge on the illustration of the holotype of Orthragoriscus alexandrini in Ranzani (1839a). Arrows indicate the bulgy edge of the clavus; red enclosures indicate the area of comparison.
FIGURE 1 in Response to Britz (2022) regarding the validity of the giant sunfish Mola alexandrini (Ranzani, 1834) (Teleostei: Molidae)
FIGURE 1. Specimens of the genus Mola preserved in the Museo di Zoologia dell' Università di Bologna, Italy (MZUB). (A) extant putative holotype of Mola alexandrini (PHMA); (B) holotype of Orthragoriscus alexandrini illustrated by Ranzani (1939); (C) extant holotype of Ozodura orsini [designated by Sawai et al. (2018) as neotype of Mola mola]; (D) holotype of Oz. orsini illustrated by Ranzani (1939). Arrows indicate the open part of the gill slit (white crescent; see text).
FIGURE 3 in Response to Britz (2022) regarding the validity of the giant sunfish Mola alexandrini (Ranzani, 1834) (Teleostei: Molidae)
FIGURE 3. Illustration of the specimens of the genus Mola from (A) Swainson (1839), and (B) Storer (1839).
Evolutionary divergence in phenotypic plasticity shapes brain size variation between coexisting sunfish ecotypes
<p>Mechanisms that generate brain size variation and the consequences of such variation on ecological performance are poorly understood in most natural animal populations. We use a reciprocal-transplant common garden experiment and foraging performance trials to test for brain size plasticity and the functional consequences of brain size variation in Pumpkinseed sunfish (<em>Lepomis gibbosus</em>) ecotypes that have diverged between nearshore littoral and offshore pelagic lake habitats. Different age-classes of wild-caught juveniles from both habitats were exposed for six months to treatments that mimicked littoral and pelagic foraging. Plastic responses in oral jaw size suggested that treatments mimicked natural habitat-specific foraging conditions. Plastic brain size responses to foraging manipulations differed between ecotypes, as only pelagic sourced fish showed brain size plasticity. Only pelagic juveniles under 1 year-old expressed this plastic response, suggesting that plastic brain size responses decline with age and so may be irreversible. Finally, larger brain size was associated with enhanced foraging performance on live benthic but not pelagic prey, providing the first experimental evidence of a relationship between brain size and prey-specific foraging performance in fishes. The recent post-glacial origin of these ecotypes suggests that brain size plasticity can rapidly evolve and diverge in fish under contrasting ecological conditions.</p>
Sunfish Skeleton (NHMW-Zoo-FS 95125)
3D scan of a *Mola mola* skeleton. Sunfish (Molidae) stand out due to their unique appearance. They can grow up to 3 meters in height, but become hardly ever longer than high and are disc shaped. Until now, not much is known about these unique fishes. What is known is, that they live in tropical and temperate oceans and that they are highly reproductive. *Mola mola* produce more eggs than any other known vertebrate: up to 300,000,000 at a time. This skeleton of a *Mola mola* stands next to another [sunfish](https://skfb.ly/o6uGy) and can be found in Hall 26 of the NHM Vienna. **Specimen**: Sunfish, *Mola mola* (Linnaeus, 1758) **Inventory Number**: NHMW-Zoo-FS 95125 **Collection**: Natural History Museum Vienna, 1st Zoological Dept., Fish Coll. (curator: Ernst Mikschi) Find out more about the NHMW [here](http://www.nhm-wien.ac.at/en). Scanned and edited by Viola Winkler (NHM Wien) Scanner: Artec Leo. Infrastructure funded by the FFG. Source: Objaverse 1.0 / Sketchfab
Testing sunfish as zooplankton control agents for wastewater-algal cultivation: Nutrient, invertebrate, and algae data
<p>Wastewater-algal cultivation is a promising means of recovering polluting nutrients and converting them into useful algal biomass. However, open raceway ponds used for wastewater-algal cultivation are prone to contamination by zooplankton, which often severely reduces algal yields. We conducted an experiment to test the potential for bluegill sunfish to improve yields by suppressing zooplankton. We used cages to protect the fish from the paddlewheels in 230-L raceway ponds. In nine raceways, the cage surrounded the paddlewheel and fish, if present, had access to the remaining tank area. In another nine raceways, the cage was on the opposite side from the paddlewheel, and contained the fish when present. Six fishless controls were implemented across both cage placements. We filled the raceways with synthetic wastewater and local plankton, and one juvenile bluefill sunfish (aside from controls). After 19 days we sampled dissolved nutrients, algae, and invertebrates in each raceway. This dataset consists of four csv files containing data from laboratory analyses of these samples. The data include dissolved nutrients, algal dry weights, zooplankton and benthic invertebrate counts, algal biovolumes, and algal nutrient content for each of the 18 raceway ponds.</p>
Data from: Morphological change and phenotypic plasticity in native and non–native pumpkinseed sunfish in response to sustained water velocities
Phenotypic plasticity can contribute to the proliferation and invasion success of nonindigenous species by promoting phenotypic changes that increase fitness, facilitate range expansion and improve survival. In this study, differences in phenotypic plasticity were investigated using young-of-year pumpkinseed sunfish from colonies established with lentic and lotic populations originating in Canada (native) and Spain (non-native). Individuals were subjected to static and flowing water treatments for 80 days. Inter- and intra-population differences were tested using ancova and discriminant function analysis, and differences in phenotypic plasticity were tested through a manova of discriminant function scores. Differences between Iberian and North American populations were observed in dorsal fin length, pectoral fin position and caudal peduncle length. Phenotypic plasticity had less influence on morphology than genetic factors, regardless of population origin. Contrary to predictions, Iberian pumpkinseed exhibited lower levels of phenotypic plasticity than native populations, suggesting that canalization may have occurred in the non-native populations during the processes of introduction and range expansion.
Evolutionary divergence in phenotypic plasticity shapes brain size variation between coexisting sunfish ecotypes
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.