(n.) Any crustacean of the family Astacidae, resembling the lobster, but smaller, and found in fresh waters. Crawfishes are esteemed very delicate food both in Europe and America. The North American species are numerous and mostly belong to the genus Cambarus. The blind crawfish of the Mammoth Cave is Cambarus pellucidus. The common European species is Astacus fluviatilis.
(n.) See Crawfish.
Example Sentences:
(1) Similar to intact crayfish, animals with an isolated protocerebrum-eyestalk complex, exhibit competent circadian rhythms in the electroretinogram (ERG).
(2) When caffeine evokes a contraction, and only then, crayfish muscle fibers become refractory to a second challenge with caffeine for up to 20 min in the standard saline (5 mM K(o)).
(3) Anthopleurin-A produced two distinct responses in crayfish giant axons: depolarization and prolongation of action potentials.
(4) After 2 weeks of chronic exposure to 75 mM EtOH, crayfish showed behavioral tolerance as measured by a decrease in righting time and an increase in tail-flip escape behavior to control levels.
(5) The factors acting at the crayfish and cockroach blood-brain barrier are summarized in FIGURE 8 and would be well suited for providing efficient K+ spatial buffering of the CNS.
(6) The equations of membrane potential developed by Kobatake and coworkers have been applied to the literature data on the resting membrane potential of the crayfish and Myxicola axons to derive values for the surface charge density present on the axon membranes.
(7) Transection of crayfish peripheral nerves proximal to the neuron cell bodies produced a more than two-fold increase in [3H]leucine incorporation, but no significant changes in labeling profiles of the proteins on SDS gels.
(8) Ultimately, I need to get rid of of crayfish and crayfish products – my dreams are so much bigger than what we are doing right now.
(9) This species preferred a higher temperature than its acclimation temperature for those acclimation temperatures ranging from 6 degrees to 26 degrees C. When acclimated to 30 degrees and 33 degrees C, the crayfish preferred a lower temperature than its acclimation temperature.
(10) All three toxins prolonged crayfish giant axon action potentials by selectively slowing Na channel inactivation without greatly affecting activation.
(11) Specific high affinity binding of the cage convulsant t-[35S]butylbicyclophosphorothionate (TBPS) was observed in membrane homogenates of housefly heads and crayfish abdominal muscles.
(12) A toxin from the Bermuda anemone Condylactis gigantea causes the early transient conductance change of crayfish giant axon membranes to persist without affecting the shape of its turning-on.
(13) Simulation results are shown to be in qualitative agreement with experimental data reported for Aplysia and crayfish.
(14) The axons of the pigmented cells terminate in the neuropil of the protocerebral bridge, together with neuronal elements that label with antibodies against serotonin and substance P. We suggest that the brain photoreceptors of the crayfish are important in the entrainment of circadian rhythms.
(15) By stimulating and recording from the same interneuron at two separate points, we have shown that coordinated output to the postural abdominal muscles of crayfish can be produced by electrical stimulation of a single cell.
(16) There are more unsaturated fatty acids in the crayfish than in the rabbit membranes.
(17) The glutathione S-transferase activity in hepatopancreas of the American red crayfish Procambarus clarkii after 15 days' acclimatization in tap water aquaria was measured in specimens collected monthly for a whole year, and shows seasonal variation.
(18) As part of its repertoire of defensive behaviors, the crayfish, Procambarus clarkii, may respond to mildly threatening tactile or visual stimuli from the front of its body by walking backwards.
(19) In nonmuscle tissues, four types of isoforms were found on two-dimensional gel electrophoresis and in immunoreplica tests using an antiserum against crayfish skeletal muscle tropomyosin.
(20) Visual pigment absorption spectra were measured in single photoreceptors of a stomatopod, a crayfish, a hermit crab, and five species of brachyuran crab.
Prawn
Definition:
(n.) Any one of numerous species of large shrimplike Crustacea having slender legs and long antennae. They mostly belong to the genera Pandalus, Palaemon, Palaemonetes, and Peneus, and are much used as food. The common English prawn is Palaemon serratus.
Example Sentences:
(1) There was a certain amount of atmosphere too, thanks mostly to the West Ham fans keeping up a persistent din and celebrating the 15th anniversary of Roy Keane’s prawn sandwich remarks by noting the reserve of the home support.
(2) Wetlands also act as nursery grounds for juvenile fish and prawns.
(3) The small prawns found on the shore during the winter exhibited a much altered behaviour.
(4) The survival rate of the prawns reared under L0:D24 photoperiod was also higher than that of other groups.
(5) The portion of my sample prawn orzo was a modest but polished plate of food, the dense bisque and silky grains of pasta elegantly punctuated by small bursts of tart, sweet semi-dried tomato.
(6) In view of reports that the nerve fibers of the sea prawn conduct impulses more rapidly than other invertebrate nerves and look like myelinated vertebrate nerves in the light microscope, prawn nerve fibers were studied with the electron microscope.
(7) This summer’s shocking revelations about slavery in the Thai fishing industry , which supplies prawns to UK supermarkets, demonstrate that voluntary systems are failing to identify and eradicate these practices.
(8) In all the insecticide exposed prawn tissues, Ammonia levels were significantly increased and a shift in the nitrogen metabolism towards the synthesis of urea and glutamine was observed.
(9) This is what we imagined: the becalmed beauty of the Whitsunday Passage, that spectacular collection of islands protectively nestled inside the Great Barrier Reef, safe from prevailing winds; bright blue languid days gliding over turquoise waters, taking turns at the tiller in our togs; finding our own private cove as the sun goes down; diving into warm pristine waters; the tinkling of intimate laughter; the fizz of champagne and the sizzle of prawns on the barbie.
(10) Ridgeback prawns formed beta-D-glucosides in small quantities, preferring conjugation of p-nitrophenol and 4-nitro-m-cresol to form sulphates and unknown conjugates through a unique conjugation pathway.
(11) 0.2, 0.4, 0.6 and 0.8 for N-acetyl) of chitosan were prepared from prawn shell chitosan, and their susceptibility towards a lysozyme from hen egg-white, three microbial chitinases and a chitinase from potato skins was examined.
(12) At Maní, this quintessential Brazilian fruit comes in the form of a fuchsia-coloured cold soup with a prawn steamed in cachaça.
(13) Dab on a little water to help the cornflour stick to the prawns if necessary.
(14) Hepatopancreatic brush border membrane vesicles of the freshwater prawn, Macrobrachium rosenbergii and the marine lobster, Homarus americanus exhibited 22Na uptake which was Cl-independent, amiloride sensitive, and stimulated by a transmembrane H gradient (Hi greater than Ho).
(15) A prawn of 15 mm carapace length could not eliminate all snails.
(16) Changes in hepatopancreas, muscle and gill tissue nitrogen metabolic profiles were studied in a penaeid prawn, Penaeus indicus, following its exposure to sublethal concentrations of methylparathion, carbaryl and aldrin.
(17) Serves 2 1 lemon, very thinly sliced 1 tsp salt 1 tsp caster sugar For the garam masala 1 tsp black peppercorns 1 tsp cumin seeds 1 tsp coriander seeds 2 cardamom pods, seeds only ½ tsp ground cinnamon 1 whole clove For the prawns 2 small shallots, halved 10g ginger, finely grated 2 garlic cloves, finely grated ½ tsp chilli flakes 2 rosemary sprigs, leaves picked and finely chopped 125g tenderstem broccoli, sliced into thirds 200g large prawns, peeled 5g each of basil and coriander, leaves picked 1 Place the lemon slices in a bowl and sprinkle both sides with the salt and caster sugar.
(18) Enjoy tapas – grilled artichoke, skewers of chicken, grilled prawns, cheese or salty hot pork on warm bread – while standing at the marble bar, or raciones at a table round the back.
(19) Effects of phorbol ester (PE) (4 beta-phorbol-12,13-dibutyrate) on transmitter release were studied in the deep extensor neuromuscular system of the prawn, Macrobrachium rosenbergii.
(20) Population experiments demonstrated that a prawn of 25 mm carapace length could eliminate 95% of a population of 80 snails in a 20-1 aquarium within 20 days and all snails by day 40.