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10 results for “spawning behaviour”
Figure 2 in First estimate of the fecundity of Ogcocephalus cubifrons (Lophiiformes) with notes on spawning behaviour
Figure 2. – Ova of Ogcocephalus cubifrons, 50x magnification showing the beginning of cleavage indicating the beginning of embryogenesis, and red oil droplet.
Data from: Patterns of sperm swimming behaviour depend on male mating tactic and spawning environment in chinook salmon
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Figure 2 in Spawning behaviour of Engystomops pustulatus (Anura: Leptodactylidae)
Figure 2. Full spawning sequence of Engystomops pustulatus (Pair 7F, Table 1). Right charts indicate duration and number of the mixing event and the resting periods and the number of kicks. Left panel diagram exemplifies one kicking cycle; arrows point out the direction of the sequence and dashed line shows the transition point-mark between the first and second phases (Mixing event no. 83). Drawing by Liliana Jaramillo.
Figure 1 in Spawning behaviour of Engystomops pustulatus (Anura: Leptodactylidae)
Figure 1. Foam nest type according to intervention of females: (a) nest built by males kicking with no female intervention, (b) nest built including males' and females' kicking movement. Structure of the nest during spawning process is presented on the left, and the final nest shape after spawning on the right.
Figure 2 in Solitary spawning revealed - an in situ observation of spawning behaviour of Doryteuthis (Amerigo) gahi (d'Orbigny, 1835 in 1834-1847) (Cephalopoda: Loliginidae) in the Falkland Islands
Figure 2. Doryteuthis gahi: (A) before spawning, with egg capsule showing; (B) laying egg capsule; (C) showing habitat where egg mass was laid.
Figure 1. Location map showing study sites, O in Solitary spawning revealed - an in situ observation of spawning behaviour of Doryteuthis (Amerigo) gahi (d'Orbigny, 1835 in 1834-1847) (Cephalopoda: Loliginidae) in the Falkland Islands
Figure 1. Location map showing study sites, O = no egg clusters observed, ⊕ = Doryteuthis gahi egg clusters observed, arrow indicates location of observed D. gahi spawning.
Data from: Spawning behaviour of Arctic charr (Salvelinus alpinus): spawning synchrony, vibrational communication and mate guarding
A mismatch between male and female gamete release in external fertilizers can result in reduced or failed fertilization, sperm competition and reduced paternity. Here, spawning behaviour of free-living Arctic charr (Salvelinus alpinus) was video recorded, and their reproductive behaviour was analysed. From evaluating 157 spawning events we observed that females mainly spawned with a guarding male and the female and the guarding male synchronized timing of gamete releaseunder sperm competition. Although sneakers spawned with higher synchrony than the guarding male in single male spawning events, the average sneaker released his milt 0.6 seconds after the spawning female under sperm competition. Approximately 50% of the recorded spawning events occurred under sperm competition, where each event included an average of 2.7 males. Additionally, sneakers were more exposed to sperm competition than guarding males. An influx of males, in close proximity to the female, occurred during the behavioural sequences leading up to egg release, but this influx seemed not dependent on egg release, suggesting that something else than gonadal product attracts sneaker males to the spawning female. Just before and during the actual release of gametes the spawning couple vibrates their bodies in close contact and it seems likely that vibrational communication between the spawning couple reveals time of gamete release to surrounding sneaker males. This might explain the relative high level of synchrony in gamete release between the female and the males from both reproductive tactics under sperm competition. Thus, vibrational communication between the guarding male and the female comes with the cost of higher detectability from surrounding males and may represent a "double-edged sword" for the guarding male.
Figure 3 in Solitary spawning revealed - an in situ observation of spawning behaviour of Doryteuthis (Amerigo) gahi (d'Orbigny, 1835 in 1834-1847) (Cephalopoda: Loliginidae) in the Falkland Islands
Figure 3. Oceanographic data from the spawning site; average temperature for 1-m depth bands.
Data from: Spawning behaviour of Arctic charr (Salvelinus alpinus): spawning synchrony, vibrational communication and mate guarding
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Figure 1 in First estimate of the fecundity of Ogcocephalus cubifrons (Lophiiformes) with notes on spawning behaviour
Figure 1. – Gelatinous egg raft of Ogcocephalus cubifrons in seawater from spawning at an aquarium.
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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.