| respiration rates and atp concentrations in the excised gills of the blue crab as a function of salinity. | | 1975 | 1194 |
| oxygen consumption of the blue crab, callinectes sapidus rathbun, from proecdysis to postecdysis. | | 1976 | 3345 |
| the effects of pentachlorophenol (pcp) and 2,4-dinitrophenol (dnp) on the oxygen consumption of tissues from the blue crab, callinectes sapidus, under different osmotic conditions. | | 1978 | 28895 |
| characterization of glutathione s-transferase activity in tissues of the blue crab, callinectes sapidus. | | 1978 | 30574 |
| temperature and blood acid-base status in the blue crab, callinectes sapidus. | the blood acid-base status of blue crabs. callinectes sapidus, was assessed at temperatures ranging from 10 to 30 degrees c. blood ph varied inversely with temperature, with a slope (dph/tt) of - 0.012. the paco rose only slightly between 10 and 27 degrees c, from 2.09 torr to 2.91 torr, with the result that the total dissolved co2 actually fell slightly due to the decrease in solubility. in vitro the blood behaved like a conventional rosenthal system, with a rise in pco2 at constant ct which wa ... | 1978 | 33428 |
| identification of species in cooked crabmeat by thin layer isoelectric focusing. | thin layer polyacrylamide gel isoelectric focusing (tlief) is described for characterizing the species-specific, heat-denatured proteins of 8 species of crab: red (geryon quinquedens), rock (cancer irroratus), jonah (cancer borealis), blue (callinectes sapidus), king (paralithodes camtschatica), snow (chionoectes spp.), european edible (cancer pagurus), and dungeness (cancer magister). protein pattern differences are shown not only among species, but also between 2 modes of heat processing of th ... | 1979 | 39059 |
| response of isolated axonal preparations to hyperosmoticity: evidence for a cellular volume regulation. | when submitted to a hyperosmotic stress, isolated axons of callinectes sapidus shrink. volume regulation is observed if the experiment is carried out by using serum from a crab adapted to sea water. 3' : 5'-amp and dibutyryl amp are also effective. a compound isolated from the hemolymph and having a molecular weight close to 10 000 mimics the effects of the serum and induces a partial regulation of the axonal volume. | 1976 | 65947 |
| recognition of viruses and xenogeneic proteins by the blue crab, callinectes sapidus. i. clearance and organ concentration. | | 1977 | 205450 |
| variations in serum constituents of the blue crab, callinectes sapidus: copper and zinc. | | 1975 | 234043 |
| temperature effects on axonal conduction in callinectes sapidus (rathbun) and carcinus maenas (l.). | | 1975 | 236872 |
| volume regulation and alanine transport. response of isolated axons of callinectes sapidus rathbun to hypo-osmotic conditions. | | 1975 | 236878 |
| free amino acid changes in normal and eyestalkless megalopa larvae of the blue crab, callinectes sapidus, during the course of the molt cycle. | | 1975 | 236891 |
| the function of hemocyanin in respiration of the blue crab callinectes sapidus. | blood po2 in the blue crab callinectes sapidus, a very active species of tropical origin, is lower at 22 degrees c than that of larger crabs in colder waters. these low oxygen levels permit its hemocyanin to be highly oxygenated at the gill, and to deliver almost half of its oxygen to the tissues in resting animals. sustained muscular activity results in conspicuous decreases in blood po2, ph and hemocyanin oxygenation. although the venous reserve is fully utilized, hemocyanin oxygenation at the ... | 1975 | 240904 |
| the influence of environmental salinity on hemocyanin function in the blue crab, callinectes sapidus. | the effects of inorganic ions and of the hydrogen ion on oxygen-binding properties of most respiratory pigments are opposite. the addition of salt to the medium increases oxygen affinities, and the addition of h+ decreases oxygen affinities of crustacean hemocyanins. these oxygenation properties, as observed in vitro, suggest that the oxygen-transport system must adapt to ionic changes in the blood. in fact, decreases in the salt concentration of the blood of estaurine blue crabs are accompanied ... | 1975 | 240905 |
| ionic and osmotic regulation and metabolic response to salinity of juvenile callinectes sapidus rathbun. | | 1975 | 241556 |
| evaluation of millipore coli-count samplers for monitoring fecal coliforms in the blue crab, callinectes sapidus. | analyses of crab meat homogenates with coli-count samplers (millipore corp.) resulted in fecal coliform counts comparable to counts obtained from standard most-probable-number testing procedures. | 1979 | 391154 |
| the influence of salinity on toxicity of cadmium and chromium to the blue crab, callinectes sapidus. | | 1979 | 444712 |
| chlorine, temperature, and exposure duration effects of power plant effluents on juvenile blue crabs callinectes sapidus and grass shrimp palaemonetes pugio. | | 1979 | 490683 |
| an evaluation of acute bromine chloride toxicity to grass shrimp (palaemonetes spp.) and juvenile blue crabs (callinectes sapidus). | | 1978 | 638269 |
| comparative studies of intra- and extramitochondrial calcium phosphates from the hepatopancreas of the blue crab (callinectes sapidus). | subcellular fractions of cytoplasmic mineral granules and mineral-loaded mitochondria were isolated from whole homogenates of hepatopancreas of the blue crab (callinectes sapidus). chemical, physical, and morphologic studies were carried out on both subcellular fractions, with and without prior removal of organic components by hydrazine extraction. in contrast to cytoplasmic granules, whole mitochondria contained appreciable amounts of mineral ions not associated with a solid mineral phase. quan ... | 1976 | 990969 |
| bacterial flora of the hemolymph of the blue crab, callinectes sapidus: most probable numbers. | the hemolymph of 290 freshly collected blue crabs from chincoteague bay, va., was sampled over a 15-month period from august 1968 through november 1969 and most probable numbers of bacteria were determined by tube dilution. the hemolymph of 18% of all crabs sampled was found to be sterile, with 16% sterility in summer and 23% in winter samples. despite individual variations, male crabs as a group had a higher bacterial hemolymph burden than females, and among both sexes summer counts were higher ... | 1975 | 1090257 |
| bacterial flora of the hemolymph of the blue crab, callinectes sapidus: numerical taxonomy. | bacteria isolated from the hemolymph of normal blue crabs were found to be predominantly vibrio sp., pseudomonas sp., acinetobacter sp., bacillus sp., flavobacterium sp., and coliforms. vibrio parahaemolyticus, a cosmopolitan facultative pathogen widely implicated in outbreaks of gastroenteritis related to the consumption of improperly processed seafood, was present in crabs collected between the months of may to november and was identified in up to 21% of the hemolymphs sampled. | 1975 | 1090258 |
| a disease of the blue crab, callinectes sapidus, of possible viral etiology. | | 1975 | 1151102 |
| gas-bubble disease in the blue crab, callinectes sapidus. | | 1976 | 1254984 |
| blue crab mortality: interaction of temperature and ddt residues. | serial observations of ddt-contaminated and uncontaminated salt marshes in the norther gulf of mexico were made in november and december, 1973. blue crab (callinectes sapidus) mortalities observed in the ddt-contaminated marsh during this period were correlated with reduced daily temperature minima. 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. it is sugg ... | 1976 | 1267483 |
| calcitonin-like immunoreactivity in the blue crab: tissue distribution, variations in the molt cycle, and partial characterization. | calcitonin-like immunoreactivity has been found in blood and tissues of the marine blue crab, callinectes sapidus rathbun. the activity in blood rises significantly during the immediate premolt (d4) stage, but tissue immunoreactivity does not vary significantly with molt stage. the immunoreactivity to antisalmon calcitonin serum is due to a 27.2 kda protein that shows strong similarities in amino acid composition to a similar protein in a lobster and to human calcitonin precursor. the protein is ... | 1992 | 1640198 |
| in vivo magnetic resonance imaging of the blue crab, callinectes sapidus: effect of cadmium accumulation in tissues on proton relaxation properties. | nuclear magnetic resonance imaging (mri) has been used to visualize the internal anatomy of a living blue crab. the resolution obtained in these studies was sufficient to distinguish individual organs by the differences in their proton densities and proton relaxation properties. t1 (spin-lattice relaxation time)-weighted imaging revealed the lipid-rich nature of the hepatopancreas and gonadal tissue. to evaluate the effect of metal-induced stress on the different organs, crabs were exposed to el ... | 1992 | 1645119 |
| the identification and structure-activity relations of a cardioactive fmrfamide-related peptide from the blue crab callinectes sapidus. | the pericardial organs and thoracic ganglia of the blue crab callinectes sapidus were resected and extracted. the extracts were fractionated by hplc and the fractions analyzed by a radioimmunoassay (ria) to fmrfamide. multiple peaks of immunoreactivity were present and one of these, upon fast atom bombardment mass spectrometry (fab-ms) and microsequencing, yielded the sequence gynrsflrfamide. the amount of this peptide in each crab is between 7 and 13 pmol. several incomplete sequences were also ... | 1991 | 1815216 |
| purification and characterization of an iron-binding protein from the blue crab (callinectes sapidus). | the presence of an iron-binding protein in the hemolymph of the blue crab (callinectes sapidus) was detected by gel filtration of 59fe-labeled hemolymph. the iron-binding protein was purified to homogeneity by ion exchange chromatography. 2. this protein has a mol. wt of 155,000 and consists of a single polypeptide chain with an isoelectric point of 5.0. 3. analysis of the iron-loaded protein indicates that it has a high affinity for iron and the capacity to bind approximately 10 atoms iron/mole ... | 1990 | 2085965 |
| the effects of temperature, salinity and a simulated tidal cycle on the toxicity of fenitrothion to callinectes sapidus. | the 96 hr lc50 for callinectes sapidus exposed to fenitrothion at 22 degrees c and a salinity of 34 ppt (parts per thousand) was estimated to be 8.6 micrograms/l with a 95% confidence interval of 7.4-9.9 micrograms/l. acute toxicity was shown to increase with increasing temperature as well as increasing salinity. exposure of callinectes to a simulated tidal cycle of 17 ppt salinity change at 6 hr intervals increased the acute toxicity of fenitrothion to callinectes. the autotomization response i ... | 1985 | 2858335 |
| comparative properties of channel catfish (ictalurus punctatus) and blue crab (callinectes sapidus) acetylcholinesterases. | 1. acetylcholinesterases (aches) from channel catfish and blue crabs were examined for substrate preference, kms, effects of inhibitors, and ph and osmotic activity profiles. 2. similarities were noted for substrate preference along with ph and osmotic optima. 3. crab ache had a lower km (9 x 10(-5) vs 2 x 10(-4) m) and was more sensitive in terms of ki50s than fish ache to eserine (2.6 x 10(-7) vs 3 x 10(-7) m), malathion (4.5 x 10(-5) vs 1.6 x 10(-4) m) and parathion (6.9 x 10(-5) vs 7 x 10(-4 ... | 1988 | 2905945 |
| the effect of dibutyryl camp on sodium uptake by isolated perfused gills of callinectes sapidus. | hemolymph, collected from 25 and 100% seawater acclimated callinectes sapidus and perfused through the isolated gill, causes increases in na+ uptake in the gill. similarly, dibutyryl camp causes increases in na+ uptake when perfused through the gill. since pericardial organ (po) extracts dopamine and octopamine are known to increase camp levels in the perfused gill, it is suggested that these substances from the po may be the hemolymph factors which increase na+ uptake via the mediation of camp ... | 1987 | 3028905 |
| ammonium ion substitutes for k+ in atp-dependent na+ transport by basolateral membrane vesicles. | ion-transporting cells from posterior gills of blue crabs (callinectes sapidus) acclimated to low salinity were used as starting material for the preparation of microsomal membrane vesicles by density gradient centrifugation. the na+-k+-adenosinetriphosphatase (atpase)-enriched basolateral vesicles were loaded with kcl- or nh+4-containing medium by dilution and centrifugation, and initial rates of 22na+ uptake into the vesicles were measured by a rapid filtration procedure. varying the extravesi ... | 1987 | 3030142 |
| principal component analysis, trace elements, and blue crab shell disease. | | 1992 | 1590588 |
| occurrence of trematodes in nerves of the blue crab, callinectes sapidus. | | 1988 | 3373008 |
| detection of protein variation in human serum by externally released precipitins from the blue crab, callinectes sapidus. | 1. a number of invertebrate species releases precipitins into the environment. this process is apparently part of an externally directed immunologic system. 2. a saline solution of precipitins released from the blue crab, callinectes sapidus, provided a reagent that produced two different precipitation reactions with proteins from the sera of human individuals. 3. one of the reaction variants was also detected with mammalian antiserum, the other was not. the former variant was associated with a ... | 1987 | 3427930 |
| metal-specific induction of metallothionein isoforms in the blue crab callinectes sapidus in response to single- and mixed-metal exposure. | metallothioneins (mts) play an important role in the metabolism of copper and zinc during the molt cycle of the blue crab. in this study we examined the hypothesis that mt expression in crabs is metal specific. anion-exchange chromatography showed one major zncumt (znmt-i) in control crabs, two mt isoforms in cadmium-treated crabs (cdmt-i, cdmt-ii), and three forms (cumt-i, cumt-ii, cumt-iii) in copper-treated animals. amino acid analysis of the carboxymethylated apo-mts, purified by reversed-ph ... | 1992 | 1567201 |
| novel protein inhibits in vitro precipitation of calcium carbonate. | organic molecules both coexist and interact with inorganic crystal lattices in biomineralizing tissues. mineral precipitation and crystal morphology are tightly regulated by the actions of these molecules. polyacrylamide gel electrophoresis studies on water soluble extracts from the cuticle of callinectes sapidus (atlantic blue crab) reveal the presence, in unmineralized nascent premolt cuticle, of proteins which are absent in the mineralized postmolt cuticle. in the present studies, homogenates ... | 1992 | 1497356 |
| nutritional availability to rats of selenium in four seafoods: crab (callinectes sapidus), oyster (crassostrea virginica), shrimp (penaeus duorarum) and baltic herring (clupea harengus). | 1. the present study was conducted to determine the biological availability to rats of the selenium in four high-se seafoods: crab (callinectes sapidus), oyster (crassostrea virginica), shrimp (penaeus duorarum) and baltic herring (clupea harengus). 2. weanling male rats were fed on a se-deficient torula yeast diet for 4 weeks followed by either continued depletion or repletion for 4 weeks with 0.05, 0.1 or 0.2 microgram se as selenite/g, or 0.1 or 0.2 microgram se as freeze-dried cooked test fo ... | 1986 | 3676154 |
| shell disease and metal content of blue crabs, callinectes sapidus, from the albemarle-pamlico estuarine system, north carolina. | concentrations of 13 elements were determined for three tissues (gill, hepatopancreas, muscle) in diseased crabs from a contaminated estuary (pamlico river, nc), and in non-diseased crabs from both the contaminated estuary and a relatively uncontaminated area (albemarle sound, nc) during the fall 1989 and summer 1990. the diseased crabs had lesions which completely penetrated their dorsal integument, while the non-diseased crabs lacked lesions. sediments within the contaminated area showed enric ... | 1992 | 1456781 |
| seasonal effects of leached mirex on selected estuarine animals. | four 28-day seasonal experiments were conducted using selected estuarine animals in outdoor tanks that received continuous flow of mirex-laden water. mirex (dodecachlorooctahydro-1,3,4-metheno-2h-cyclobuta [cd] pentalene) leached from fire ant bait (0.3% mirex) by fresh water and then mixed with salt water was toxic to blue crabs (callinectes sapidus), pink shrimp (penaeus duorarum), and grass shrimp (palaemonetes pugio) but not to sheepshead minnows (cyprinodon variegatus), at concentrations le ... | 1975 | 1190846 |
| tonic immobility in the blue crab (callinectes sapidus, rathbun) its relation to threat of predation. | the tonic immobility. response in the blue crab (callinectes sapidus, rathbun) was investigated in a series of seven experiments. although reported to be a powerful variable in other species, preinduction electric shock produced inconsistent increases in the duration of tonic immobility with the blue crab; manipulations that were more directly relevant to the fear of predation had considerably greater effects than shock. physical damage to the chelipeds, mirror image stimulation, and immobilizat ... | 1975 | 1171124 |
| colonization of the gut of the blue crab (callinectes sapidus) by vibrio cholerae. | attachment of vibrio cholerae to the mucosal surface of the intestine is considered to be an important virulence characteristic. vibrio cholerae, an autochthonous member of brackish water and estuarine bacterial communities, also attaches to crustacea, a significant factor in multiplication and survival of v. cholerae in nature. the ability of v. cholerae to attach to the gut wall of the blue crab (callinectes sapidus) was examined, and attachment was observed only in the hindgut and not the mid ... | 1986 | 3767362 |
| heterogeneous humoral and hemocyte-associated lectins with n-acylaminosugar specificities from the blue crab, callinectes sapidus rathbun. | callinectes sapidus serum and hemocyte microsomal fraction agglutinated a panel of untreated and enzyme treated vertebrate erythrocytes and cultured lymphoid cell lines. crossed absorption experiments suggested the presence of multiple specific lectins in the serum. the microsomal fraction showed a 35-fold increase in specific activity when compared to the hemocyte lysate suggesting that hemocyte lectins are membrane-associated. agglutination by serum and hemocyte lectins was inhibited by low co ... | 1986 | 3769455 |
| source of vibrio spp. found in the hemolymph of the blue crab, callinectes sapidus. | | 1985 | 4031533 |
| atomic structure of intracellular amorphous calcium phosphate deposits. | the radial distribution function calculated from x-ray diffraction of mineralized cytoplasmic structures isolated from the hepatopancreas of the blue crab (callinectes sapidus) is very similar to that previously found for synthetic amorphous calcium phosphate. both types of mineral apparently have only short-range atomic order, represented as a neutral ion cluster of about 10 a in longest dimension, whose probable composition is expressed by the formula ca9(po4)6. the minor differences observed ... | 1975 | 1056015 |
| cheliped laterality in callinectes sapidus (crustacea: portunidae). | | 1976 | 953070 |
| potentiometric evidence for the active transport of sodium and chloride across excised gills of callinectes sapidus. | | 1971 | 4150220 |
| the structure of the stomatogastric neuromuscular system in callinectes sapidus, homarus americanus and panulirus argus (decapoda crustacea). | | 1974 | 4152406 |
| the effect of external salinity upon lipid synthesis in the blue crab callinectes sapidus rathbun and in the spider crab libinia emarginata leech. | | 1974 | 4153714 |
| the effect of salinity and temperature on the ion levels in the hemolymph of the blue crab, callinectes sapidus, rathbun. | | 1974 | 4153717 |
| variations in serum constituents of the blue crab, callinectes sapidus: major cations. | | 1974 | 4154178 |
| the effect of salinity and sex on the respiration rates of excised gills of the blue crab, callinectes sapidus. | | 1974 | 4156238 |
| purification and properties of glycogen phosphorylase a from the muscle of the blue crab, callinectes danae. | | 1974 | 4213332 |
| respiration and phosphorylation by mitochondria from the hepatopancreas of the blue crab (callinectes sapidus). | | 1973 | 4266066 |
| molt cycle regulation of nucleotide pyrophosphatase in the hepatopancreas of the blue crab, callinectes sapidus rathbun. | | 1969 | 4304992 |
| isosmotic intracellular regulation and redox changes in the respiratory chain components of callinectes sapidus isolated muscle fibers. | | 1972 | 4348290 |
| kinetics of glycogen phosphorylase a from the muscle of the blue crab, callinectes danae. | | 1974 | 4414042 |
| rhodopsin of the blue crab callinectes: evidence for absorption differences in vitro and in vivo. | | 1974 | 4423024 |
| co binding by hemocyanins of limulus polyphemus, busycon carica, and callinectes sapidus. | | 1974 | 4429663 |
| accumulation of mirex-14c in the adult blue crab (callinectes sapidus). | | 1974 | 4433859 |
| bacteriological survey of the blue crab industry. | during sanitation inspections of 46 crabmeat processing plants on the atlantic and gulf coasts, 487 samples of whole crabs immediately after cooking, cooked crabs after cooling, backed or washed (or both) crab bodies and whole crab claws, as well as 1,506 retail units of finished product were collected and analyzed bacteriologically. the 1,506 retail units (1-lb [373.24-g] cans) included 518 cans of regular (special) meat, 487 cans of claw meat, and 501 cans of lump meat. statistical analyses sh ... | 1972 | 4568256 |
| fate of labeled n-alkanes in the blue crab and stripped mullet. | results of these studies demonstrate that the blue crab was readily able to take up and discharge labeled n-alkanes, but it was not able to metabolize them. in contrast, it appears that n-alkanes taken up via the digestive tract in mullet are readily metabolized, probably via microorganisms in the gut. more limited metabolism was observed in mullet when n-alkanes were taken up via the gills. | 1977 | 861400 |
| incidence of clostridium botulinum in crabmeat from the blue crab. | the incidence of clostridium botulinum in fresh crabmeat of blue crab was six out of 986 samples; in pasteurized crabmeat one sample out of 1,000 contained the organism. | 1974 | 4607823 |
| evoked activity in the nervous system of callinectes sapidus following phasic excitation of the statocysts. | | 1972 | 4638898 |
| enzymatic mechanisms during temperature acclimation of the blue crab, callinectes sapidus. i. oxygen consumption and activity of glucose-6-phosphate dehydrogenase and 6-phosphogluconate dehydrogenase. | | 1972 | 4644212 |
| enzymatic mechanisms during temperature acclimation of the blue crab, callinectes sapidus. ii. kinetic and thermodynamic studies of glucose-6-phosphate dehydrogenase and 6-phosphogluconate dehydrogenase. | | 1972 | 4644213 |
| an attempt to immunize the blue crab, callinectes sapidus, with vertebrate red blood cells. | | 1973 | 4692770 |
| chitinoclastic bacteria associated with shell disease in penaeus shrimp and the blue crab (callinectes sapidus). | | 1973 | 4701183 |
| amino-acid metabolism during osmotic stress in isolated axons of callinectes sapidus. | | 1974 | 4823634 |
| biochemical and ultrastructural aspects of ca2+ transport by mitochondria of the hepatopancreas of the blue crab callinectes sapidus. | mitochondria isolated from the hepatopancreas of the blue crab callinectes sapidus show up to 12-fold stimulation of respiration on addition of ca(2+), which is accompanied by ca(2+) accumulation (ca(2+):site = 1.9) and h(+) ejection (h(+):ca(2+) = 0.85). sr(2+) and mn(2+) are also accumulated; mg(2+) is not. a strongly hypertonic medium (383 mosm), mg(2+), and phosphate are required for maximal ca(2+) uptake. ca(2+) uptake takes precedence over oxidative phosphorylation of adp for respiratory e ... | 1974 | 4827906 |
| excitatory synapses of blue crab gastric mill muscles. | physiological and ultrastructural studies were made of neuromuscular synapses in stomach muscles, especially two gastric mill muscles of the blue crab innervated by neurons of the stomatogastric ganglion. these muscles depolarized and contracted with application of glutamate, but not acetylcholine, whereas the dorsal dilator muscles of the pyloric region depolarized and contracted in acetylcholine, but not in glutamate. large excitatory postsynaptic potentials (epsp's) of 5-20 mv were recorded i ... | 1977 | 837405 |
| the salt absorbing cells in the gills of the blue crab (callinectes sapidus rathbun) with notes on modified mitochondria. | | 1968 | 4884645 |
| isolation of vibrio parahaemolyticus from the processed meat of chesapeake bay blue crabs. | a method for the recovery of vibrio parahaemolyticus from seafoods is described. by this procedure, a total of 56 biochemically positive cultures of v. parahaemolyticus were recovered from market samples of chesapeake bay processed blue crab (cooked, picked, packed, and refrigerated meat). all of the isolates were tested serologically, and 22 strains were serotyped according to the schema of sakazaki as follows: k3, k5, k28, k31, k36, k37, k39, k43, and k44. these results indicate the broad dist ... | 1970 | 4921056 |
| [research on the role of neurosecretion in sex differentiation in the crab, callinectes sapidus rathbun]. | | 1967 | 4963852 |
| the glycogen phosphorylase system from the muscle of the blue crab: callinectes danae. | | 1969 | 4977724 |
| the hemolymph proteins of the blue crab, callinectes sapidus. ii. a lipoprotein serologically identical to oocyte lipovitellin. | | 1969 | 4978665 |
| ultrastructural study of microsporidian development. i. nosema sp. sprague, 1965 in callinectes sapidus rathbun. | | 1970 | 4986525 |
| [comparative study of the ultrastructure of androgenic glands from normal and eyestalkless crabs during larval life or after puberty in the species: rhithropanopeus harrisii (gould) and callinectes sapidus rathbun]. | | 1971 | 5157128 |
| sterols, fatty acids and sterol content in eggs and hepatopancreas of the blue crab callinectes sapidus (rathbun). | | 1969 | 5372851 |
| biological relationship of callinectes sapidus (rathbun) with carcinonemerteans, bryozoan, and barnacles. | | 1970 | 5412351 |
| electrical properties of axons of callinectes sapidus. | | 1970 | 5459481 |
| a minchinia-like haplosporidan parasitizing blue crabs, callinectes sapidus. | | 1976 | 822104 |
| steroidogenesis in the blue crab callinectes sapidus rathbun. | | 1971 | 5559128 |
| conversion of progesterone to 11-deoxycorticosterone by the androgenic gland of the blue crab (callinectes sapidus rathbun). | | 1969 | 5765442 |
| volume control by muscle fibers of the blue crab. volume readjustment in hypotonic salines. | single isolated muscle fibers from the walking legs of the blue crab, callinectes sapidus act as boyle-van't hoff osmometers with an osmotically inactive volume of 33 %. fibers in hypotonic salines undergo a spontaneous volume readjustment toward the initial volumes of the cells found in isotonic salines. the volume readjustment is initiated by the increase in cell volume in hypotonic salines and appears to be dependent on the duration of exposure of the fiber to external sodium, the sodium conc ... | 1969 | 5767335 |
| vibrio parahaemolyticus from the blue crab callinectes sapidus in chesapeake bay. | strains of vibrio parahaemolyticus, the etiologic agent of "shirasu" food poisoning in japan, were isolated from moribund blue crabs callinectes sapidus and identified by biochemical and serological techniques. | 1969 | 5770620 |
| the hemolymph proteins of the blue crab, callinectes sapidus. i. hemocyanins and certain other major protein constituents. | | 1969 | 5788602 |
| a disease of blue crabs (callinectes sapidus) in maryland and virginia. | | 1966 | 5939400 |
| ultrastructural studies of sperm morphology and sperm-egg interaction in the decapod callinectes sapidus. | | 1966 | 5948806 |
| free amino acids in developing stages of two crabs, callinectes sapidus rathbun and rhithropanopeus harrisii (gould). | | 1966 | 6013506 |
| the glucuronic acid pathway in the blue crab, callinectes sapidus rathbun: the enzymes of the udpglucose to glucuronic acid portion of the pathway. | | 1967 | 6035559 |
| effect of single and continuous exposures of gamma radiation on the survival and growth of the blue crab, callinectes sapidus. | | 1967 | 6066585 |
| shell disease of the blue crab, callinectes sapidus. | | 1967 | 6070691 |
| calcium and the tonic release of transmitter at a non-impulsive synapse in the crab. | depolarization-transmitter release coupling was studied in the promotor stretch receptor/motoneuron synapse of the crab. callinectes sapidus, a preparation in which presynaptic action potentials do not occur. intracellular microelectrode recordings were made from the presynaptic terminal and from the somata of postsynaptic motoneurons while injecting current pulses into the peripheral stretch receptor dendrite with the aid of the sucrose-gap. 1. for short current pulses, the relationship between ... | 1980 | 6109020 |
| a simple method for the computation of first neighbour frequencies of dnas from cd spectra. | a procedure for the computation of the first neighbour frequencies of dna's is presented. this procedure is based on the first neighbour approximation of gray and tinoco. we show that the knowledge of all the ten elementary cd signals attached to the ten double stranded first neighbour configurations is not necessary. one can obtain the ten frequencies of an unknown dna with the use of eight elementary cd signals corresponding to eight linearly independent polymer sequences. these signals can be ... | 1978 | 673843 |
| microsomal cytochromes p-450 from marine crabs. | cytochromes p-450 were isolated from the hepatopancreas of several species of crabs (libinia emarginata, callinectes sapidus, menippe mercenaria and uca minax). elution profiles from an ion exchange column showed similar profiles for all species, indicating one broad cytochrome p-450 peak eluting at 0.2 m k cl. hydroxyapatite chromatography resolved the p-450 into three forms (cytochromes p-450i, p-450ii and p-450iii). the forms of cytochrome p-450 in the different crabs were compared with respe ... | 1984 | 6149863 |
| uptake and survival of enteric viruses in the blue crab, callinectes sapidus. | uptake of poliovirus 1 by the blue crab, callinectes sapidus, was measured to assess the likelihood of contamination by human enteric viruses. virus was found in all parts of the crab within 2 h after the crab was placed in contaminated artificial seawater. the highest concentrations of virus were found in the hemolymph and digestive tract, but the meat also contained virus. the concentration of virus in the crabs was generally less than in the surrounding water. changes in salinity did not subs ... | 1981 | 6261683 |
| concentration of rotavirus and enteroviruses from blue crabs (callinectes sapidus). | a simple method for concentration and detection of rotavirus and enteroviruses in the blue crab is described. virus was separated from tissue homogenates at ph 9.5, concentrated by adsorption to protein precipitates at ph 3.5, and recovered by elution of precipitates at ph 9.2. test samples of 12 to 15 ml were produced from an initial 100 g of crab tissues. cat-floc precipitation was used to remove sample toxicity for cell cultures. recovery effectiveness averaged 52% with poliovirus 1, echoviru ... | 1983 | 6318667 |
| nonhomogeneous excitatory synapses of a crab stomach muscle. | neuromuscular synapses of pyloric muscle p1 in the blue crab callinectes sapidus were examined using electrophysiological and electron microscopic methods. the muscle is innervated by a single excitatory axon of the stomatogastric ganglion. excitatory postsynaptic potentials show striking facilitation at very low frequencies of stimulation, indicating very slow decay of the facilitation process after a single nerve impulse. quantal content of transmitter release at a low frequency of stimulation ... | 1978 | 632814 |