(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.
Swimmeret
Definition:
(n.) One of a series of flat, fringed, and usually bilobed, appendages, of which several pairs occur on the abdominal somites of many crustaceans. They are used as fins in swimming.
Example Sentences:
(1) Mechanosensory stimulation of an abdominal swimmeret initiates a fictive extension which includes flexion inhibition.
(2) The strongest extension response was produced at 2 Hz which falls within the normal range of swimmeret beating in intact lobsters.
(3) Feathered hair sensilla fringe both rami of the lobster (Homarus americanus) swimmeret.
(4) Proof that PTX acts by binding the GABA receptor was obtained by observing that the addition of GABA or muscimol to preparations pretreated with PTX did not affect either spontaneous or swimmeret evoked activities, or intracellular potential amplitudes.
(5) The sensilla on the male and female second swimmerets are sexually dimorphic.
(6) Evidence from extracellular analyses suggested that single interneurons of the abdominal nerve cord could produce motor outputs in both the swimmeret and the abdominal positioning systems.
(7) Localized tactile stimulation of the swimmeret surface with a mechanical probe usually generated flexion inhibition where the flexor inhibitor (f5) was activated while the small and medium flexor excitors were inhibited.
(8) DL-Octopamine inhibits the swimmeret system, both when the system is spontaneously active and when it has been excited by proctolin.
(9) Physiological experiments in which RPCH was perfused into the ganglia of isolated nerve cords showed that RPCH modulated the swimmeret rhythm.
(10) A study has been made of the interrelations between rhythmical exopodite beating in different larval stages and swimmeret beating in poast-larval stages of the lobster Homarus gammarus.
(11) Female swimmerets contain many long "smooth hairs" (long simple setae) on the coxa and rami.
(12) The membrane potential of interneuron IA oscillated in phase with the swimmeret rhythm, a motor pattern generated in each of these ganglia, because the neuron received postsynaptic potentials in phase with the rhythm.
(13) Differences emerge in the performance of larval exopodites and post-larval swimmerets (table 6b), although the possibility cannot be excluded that the larval exopodite oscillator in some way influences the developing action of the post-larval swimmeret system.
(14) The response properties of both types of hypodermal mechanoreceptors imply that they are activated during the characteristic beating movements of the swimmerets.
(15) The swimmerets in the abdomen of the lobster Homarus americanus are paired external appendages whose back and forth propulsive movements are brought about largely by a group of power and return stroke muscles located in the lateral abdominal cavity.
(16) None of the dual output neurons examined influenced the swimmeret motoneurons directly.
(17) Gas chromatographic analysis of hepatopancreas and swimmeret muscle tissue of dead and dying crabs revealed total DDT residue concentrations as high as 39.0 ppm and 1.43 ppm, respectively.
(18) Phentolamine also blocks inhibition of the swimmeret system by inhibitory command interneurons.
(19) The sensory response to hair displacement was characterized by recording afferent impulses extracellularly from the swimmeret sensory nerve while deflecting sensilla with a rigidly-coupled probe or controlled water movements.
(20) In nerve cords that were spontaneously producing the swimmeret rhythm, RPCH lengthened both the period and the duration of bursts of action potentials, but did not alter the phase relationships between bursts in different segments.