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Showing 1 to 14 of 14 for “"Horseshoe crab"”.
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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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LECTINS FROM THE HORSESHOE CRAB, LIMULUS POLYPHEMUS, REACTIVE WITH BACTERIAL LIPOPOLYSACCHARIDE
… sialic acid-binding lectin from the serum of the horseshoe crab, Limulus polyphemus, was isolated by preparative polyacrylamide slab gel electrophoresis and by ion-exchange chromatography on a column of diethylaminoethyl (DEAE)-Sephadex. The purified lectin precipitates the lipopolysaccharide …
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Design and Model-based Approaches for Estimating Abundance of American Horseshoe Crab
The American horseshoe crab (HSC), Limulus polyphemus, is one of four species of horseshoe crabs found throughout the world, and the only one found in North America. It is an economically and ecologically important species throughout its native range from Maine to the Yucatan Peninsula. Harvested …
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The ecological role of feeding disturbances of the Atlantic horseshoe crab, Limulus polyphemus
… by the epibenthic predator, Atlantic Horseshoe Crab Limulus polyphemus, on the intertidal mudflats of Great Bay estuary, New Hampshire, USA were used as the study system.</p><p>This study overcame methodological hurdles in the study of small localized disturbance over extensive areas …
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Bycatch associated with a horseshoe crab (Limulus polyphemus) trawl survey: identifying species composition and distribution
Horseshoe crabs (Limulus polyphemus) have been harvested along the east coast of the United States since the 1800s, however a Fishery Management Plan (FMP) was only recently created for this species. To date, there have not been any studies that have attempted to identify or quantify bycatch in the …
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Electrophysiological, Pharmacological and Ultrastructural Studies of the Heart and Cardiac Ganglion of the Horseshoe Crab, Limulus Polyphemus
Made available in DSpace on 2014-12-11T22:22:09Z (GMT). No. of bitstreams: 1 7114841.pdf: 6717770 bytes, checksum: 7cfb87339f928bf4e0d3acdccd920f68 (MD5) Previous issue date: 1970
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A mid-Atlantic study of the movement patterns and population distribution of the American horseshoe crab (Limulus polyphemus)
… with Cambrex, a biomedical company that utilizes horseshoe crabs for the production of Limulus Amoebocyte Lysate (LAL), a study was conducted to investigate movement patterns and population distributions of horseshoe crabs to increase understanding of mid-Atlantic horseshoe crab populations. In …
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Transport of terrigenous sediment and horseshoe crab eggs in the swash zone of an estuarine foreshore in Delaware Bay, New Jersey, USA
… and South America to feed on nutrient rich horseshoe crab eggs during their peak spawning season. Eggs laid at depth by horseshoe crabs are exhumed and transported by bioturbation, wave and swash processes and made available to foraging shorebirds. The objectives of this dissertation are to: …
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Reducing post-bleeding mortality of horseshoe crabs (Limulus polyphemus) used in the biomedical industry
… effects of blood extraction on the survival of horseshoe crabs and performed a preliminary investigation into amebocyte maintenance in vitro. Hemolymph volume of L. polyphemus was estimated over a representative size range of adults. Hemolymph volume expressed as a percentage of wet body weight …
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Selection of Spawning Habitats by Horseshoe Crabs (Limulus polyphemus) along the Complex Connecticut Coast
<p>The Atlantic horseshoe crab (<em>Limulus polyphemus</em>) is a multiple-use resource that has recently come under environmental conflict. This research focused on the Long Island Sound population of horseshoe crabs and aimed to characterize the coastal habitats of Connecticut by various traits …
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Studies of luminescent materials including novel preparation of phosphors
… in the first part of the appendix. Scorpion and horseshoe crab emission spectra have been obtained, and in the case of the scorpion samples it is possible to examine emission spectra at different wavelengths.
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Bayesian Hierarchical Methods and the Use of Ecological Thresholds and Changepoints for Habitat Selection Models
… a complex data set containing information about horseshoe crab spawning habitat preferences in the Delaware Bay over a five-year period. These data epitomize some of the difficult issues inherent to studying habitat preferences. The data are collected over time at many sites, have missing …
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Variability in the Firing of Nerve Impulses in Eccentric Cells of the Limulus Eye
… is the eccentric cell in the compound eye of the horseshoe crab, Limulus polyphemus. In Part I a theory is presented which accounts for the variability in the response of an eccentric cell to light. The main idea of this theory is that the source of randomness in the impulse rate is "noise" in the …
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BIOMEDICAL POTENTIAL OF AMOEBOCYTE LYSATE FROM CARCINOSCORPIUS ROTUNDICAUDA AND TACHYPLEUS GIGAS
… were prepared from 2 Singaporean species of horseshoe crab, Carcinoscorpius rotundicauda and Tachypleus gigas. Whilst chloroform extraction adversely affected the potency of the lysate, no adverse effect was observed using bovine serum albumin as a protein stabilizer. The quality of the …