Results 131 to 140 of about 55,507 (255)

Integration of visual stimuli by the crayfish central nervous system [PDF]

open access: yes, 1967
For the crayfish, properties of visually reacting interneurone types in the optic nerve are described on the basis of single-unit analysis. Sustaining fibres show: (a) ‘surround’ inhibition over the whole retina, including the excitatory field; (b) ‘on’
Wiersma, C. A. G., Yamaguchi, T.
core  

Stochastic colonization, transient and boom–bust dynamics shape invasions by native taxa

open access: yesEcology, Volume 107, Issue 5, May 2026.
Abstract Boom–bust dynamics (BBD) is a population dynamic pattern described in invasion ecology, where a population suddenly increases (boom) before quickly declining (bust), eventually stabilizing at much lower levels. This initial outbreak is considered a transient phase preceding a long‐term population equilibrium.
Daniel Oro, Giulio Tirabassi
wiley   +1 more source

Neuronal Pathways and Synaptic Connexions in the Abdominal Cord of the Crayfish [PDF]

open access: yes, 1959
1. An investigation has been made into the function and distribution of nerve fibres in the abdominal ganglion chain and its roots in the crayfish, Procambarus clarkii, by leading off action potentials from small prepared bundles following sensory ...
Hughes, G. M., Wiersma, C. A. G.
core   +1 more source

Interactive effects between burrowing crayfish and flow conditions increase riverbank erosion: A flume experiment

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 5, May 2026.
Biological and geomorphic effects have been treated independently in fluvial geomorphology. Flume experiments with burrowing crayfish show that interactions between these drivers do more geomorphic work than the sum of their maximum independent parts combined, meaning total biogeomorphic effects to rivers are likely underestimated.
Catherine H. Sanders   +2 more
wiley   +1 more source

Inactivation Strategies of Clostridium perfringens in Foods: Current Challenges and Emerging Interventions

open access: yesFood Frontiers, Volume 7, Issue 3, May 2026.
Clostridium perfringens forms heat‐resistant spores that complicate food safety. Physical methods (thermal processing, HPP, vacuum cooling, ozone treatments) and chemical interventions (natural antimicrobials, phosphates, nitrate/nitrite, organic acids) reduce vegetative cells and spores, though spore resistance remains a major challenge in food and ...
Deepak Subedi   +7 more
wiley   +1 more source

Effect of Liquid Nitrogen Freezing on Maintaining the Quality of Crayfish During Freeze–Thaw Cycles: Muscle Structure and Myofibrillar Proteins Properties

open access: yesFoods
The quality of frozen crayfish (Procambarus clarkii) is challenged by freeze–thaw (FT) cycles during storage. The effect of freezing methods on the quality of crayfish during FT cycles was investigated by comparing physicochemical properties ...
Zongna Teng   +5 more
doaj   +1 more source

Factors Regulating the Discharge Frequency in Optomotor Fibres Of Carcinus Maenas [PDF]

open access: yes, 1971
The influence of the excited state of the animal on various motor neurone discharges and accompanying muscle action potentials was studied in the eyestalk of the crab, Carcinus maenas.
Fiore, L., Wiersma, C. A. G.
core  

Spatial‐temporal patterns of perfluoroalkyl substances in the biota of the Laurentian Great Lakes: A meta‐analysis

open access: yesJournal of Environmental Quality, Volume 55, Issue 3, May/June 2026.
Abstract To better understand the dynamics of per‐ and polyfluoroalkyl substances (PFAS) in complex freshwater ecosystems, we performed a systematic meta‐analysis of PFAS distributions and spatiotemporal variance in biota of the Laurentian Great Lakes watersheds.
Peter O. L. Martin   +6 more
wiley   +1 more source

Crustacean and Mollusc Shell Proteins: Origin, Structure, and Functionality

open access: yesJournal of Food Science, Volume 91, Issue 5, May 2026.
ABSTRACT Crustacean and molluscan processing as seafood generates a significant amount of shell waste annually, owing to the dense, mineral‐rich composition of the exoskeleton. Although valorization efforts have mostly focused on chitin and chitosan, the protein fraction remains underutilized despite its prominent nutritional, functional, and sensory ...
Tharuka Wijesekara, Idaresit Ekaette
wiley   +1 more source

The Effects of Intraspecific Variation of Crayfish Behavior on Nutrient Cycling in Aquatic Environments [PDF]

open access: yes, 2020
Human activities are rapidly altering species traits at a global scale. Yet, there remains a critical need to determine whether trait variation within species affects ecosystem responses to global change. In particular, intraspecific variation in feeding
Acheson, Paul
core  

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