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Showing 1 to 20 of 240 for “"CRAB"”.
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Spermatogenesis in the sand crab Emerita Analoga
… cells or Emerita analoga, the so-called sand crab. This animal has been used by the writer for studies on spermatogenesis and on spermatozoan behavior during the summer or 1951, 1952, and 1953 at the Pacific Marine Station.</p>
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Crab flare observations with H.E.S.S. phase II
… found so far, even the oldest detection, the Crab Nebula, keeps surprising the scientific community with unexplained phenomena such as the recently discovered very energetic flares of high energy gamma-ray radiation. During its most recent flare, which was detected by the Fermi satellite in …
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A Horseshoe Crab (Limulus polyphemus) Demographic Study
We examined various aspects of horseshoe crab populations in conjunction with BioWhittaker, a biomedical company that bleeds horseshoe crabs (Limulus polyphemus) and utilizes their blood for biomedical purposes. We examined mortality rates of bled and unbled crabs by holding crabs in tanks for …
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Some Aspects of Osmotic and Ionic Regulation in the Blue Crab, Callinectes Sapidus, and the Ghost Crab, Ocypode Albicans
Made available in DSpace on 2014-12-05T22:14:37Z (GMT). No. of bitstreams: 1 5801699.pdf: 5515956 bytes, checksum: de9f0de75bb4677f38b7b6119bf23ee3 (MD5) Previous issue date: 1958
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Studies on the preservation of crab processing waste and evaluation of the quality of the protein from crab waste
… of different chemicals on the preservation of crab waste at room temperature. In Exp. 1, .2 and .4% NaOCI and H₂O₂ were used and the waste was stored for 17 d. In Exp. 2, NaCI (10%), NaNO₂ (1%), NaOCI (.4%), NaN₃ (.065%), KN0₃ (.1%), Tert butyl hydroperoxide (TBHP) (50 ppm), and I₂ (25 ppm) …
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Evaluating control of green crab at pipestem inlet
The invasive European green crab, Carcinus maenas, has been present on the west coast of Vancouver Island since 1998. Annual trapping has been conducted since 2010 at Pipestem Inlet to determine if depletion is a potential mechanism to eradicate or control established populations. Although catch …
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Estuarine Ingress of the Blue Crab Callinectes Sapidus
… investigated ingress of postlarval blue crabs Callinectes sapidus to the Newport River estuary, North Carolina, USA. Data from C. similis, Menippe mercenaria, Pachygrapsus transversus, and Arenaeus cribrarius are included in some chapters for comparison. Changes in tolerance to low …
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Towards detecting gravitational waves from the Crab Pulsar
… due to the 59.7 Hz radiation frequency of the Crab pulsar. Application of the techniques developed in this work to the LIGO detectors promises to improve the signal to noise ratio at the Crab frequency and thus pave the way toward direct detection of gravitational radiation from a known source.
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Social Behavior in the Tropical Fiddler Crab, Uca Terpsichores
Made available in DSpace on 2014-12-12T01:27:44Z (GMT). No. of bitstreams: 1 7412267.pdf: 4289039 bytes, checksum: f500f7396c442a33acd07ba78af5befa (MD5) Previous issue date: 1973
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Biological and physical treatment of crab processing industry wastewaters
The crab processing industry of the Chesapeake Bay region has, until recently, been able to dispose of their processing wastewaters by discharging them, largely untreated, directly to the receiving waters along which their plants are located. With the upcoming implementation of new NPDES discharge …
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Evaluation of ruminal escape potential of crab meal and other protein supplements and influence of steam explosion of ruminal degradability of crab meal
… were conducted, three to study the value of crab meal and other protein supplements, and the other to explore the potential of steam explosion technique to improve the nutritive value of crab meal. In Expt. 1, 48 Angus x Hereford and Angus x Simmental steers (avg. BW, 223 kg) were used in a …
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GAMMA-RAY IMAGING OBSERVATIONS OF THE CRAB AND CYGNUS REGIONS
… were obtained, including observations of the Crab and Cygnus regions.</p><p>The Crab Nebula/pulsar was observed to have a featureless power-law spectrum with a best fit form of $5.1 \times 10\sp{-3} {\rm E\sb{MeV}}\sp{-1.88}$ photons ${\rm cm\sp{-2}\ s\sp{-1}\ MeV}\sp{-1},$ consistent with …
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Crab Cavity Requirements for the Jefferson Lab Electron-Ion Collider
… loss due to the beam crossing angle is using crab cavities. Crab cavities are superconducting radio-frequency structures optimized to produce a transverse force that ``tilts'' the beam bunches in such a way that a head-on collision is restored at the collision point, thus restoring the …
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The geography of the Crab Orchard Project of southern Illinois
Made available in DSpace on 2017-05-18T15:22:27Z (GMT). No. of bitstreams: 2 6450496_opt.pdf: 3577535 bytes, checksum: 820408ce4462e11faaad0e9400624e5f (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1941
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Anaerobic/aerobic pretreatment of blue crab (Callinectes sapidus) cooker wastewater
Wastewater from the pressure cooking of blue crabs presents a difficult treatment challenge. COD concentrations in the range of 15,000 to 30,000 mg/L are found in this wastewater, with TKN concentrations above 2,000 mg/L. Direct discharge of the wastewater, which is currently allowed, adds …
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Development of a formulated diet for mud crab, Scylla sewata, larvae
… formulated diet to replace live food in mud crab, Scylla serrata, larval culture. A microbound diet (MBD) was formulated based on known requirements of other crustaceans and was assessed for ingestion and retention by the various larval stages of S. serrata. Ingestion and retention was …
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Gut-associated microbial symbionts of the marsh fiddler crab, Uca pugnax
… interactions with their host, the marsh fiddler crab, Uca pugnax. Furthermore, we assessed whether microbes benefit the host by contributing extracellular enzymes along the digestive tract. This is the first report of the eccrinid protists, Enteromyces callanassae and Enterobryus sp., inhabiting …
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Enhanced Blue Crab Predation on Rangia Clams after Exposure to Hypoxia
… cuneata) are not found within this zone. Blue crabs (Callinectes sapidus) are important estuarine predators and may move in and out of the hypoxic zone to feed on hypoxia-stressed rangia clams. To test the effects of hypoxia on predation, rangia clams were exposed experimentally to severe …
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