Journal articles on the topic 'Bamfield'

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1

Williams, David E., and Raymond J. Andersen. "Terpenoid metabolites from skin extracts of the dendronotid nudibranch Tochuinatetraquetra." Canadian Journal of Chemistry 65, no. 9 (September 1, 1987): 2244–47. http://dx.doi.org/10.1139/v87-374.

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The skin chemistry of specimens of the dendronotid nudibranch Tochuinatetraquetra collected at Port Hardy and Bamfield, British Columbia, has been examined. Port Hardy animals yielded tochuinyl acetate (1) and dihydrotochuinyl acetate (2), two new cuparane sesquiterpenoids, as well as rubifolide (3) and pukalide (4), two previously known cembrane diterpenoids. Bamfield animals yielded the known briarein-type diterpenoid ptilosarcenone (5) and the previously unreported butanoate analogue 6. The T. tetraquetra metabolites are sequestered from coelenterates in the nudibranch's diet.
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2

Sewell, Mary A., Fu-Shiang Chia, and Ahmed S. Thandar. "A redescription of Leptosynapta clarki Heding (Echinodermata: Holothuroidea) from the northeast Pacific, with notes on changes in spicule form and size with age." Canadian Journal of Zoology 73, no. 3 (March 1, 1995): 469–85. http://dx.doi.org/10.1139/z95-054.

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Leptosynapta clarki is redescribed on the basis of the type material and new collections from Bamfield and Gabriola Island, British Columbia, and False Bay, San Juan Island, Washington. Both intraspecific and zoogeographic variations are recorded. Further, notes are added on changes in spicule form and the size of the anchor plates with age in a single population of the species from Grappler Inlet, Bamfield. Leptosynapta roxtona Heding, 1928, described from three fragments, is declared a synonym of L. clarki, and L. lens Heding, 1928 a synonym of L. albicans (Selenka, 1867). Leptosynapta transgressor Heding, 1928 is suspected to be a subtidal ecological variant of L. clarki, but is tentatively retained until living material becomes available.
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3

Christie, R. M. "Book Review: Chromic Phenomena. By Peter Bamfield." Advanced Materials 14, no. 23 (December 3, 2002): 1783. http://dx.doi.org/10.1002/1521-4095(20021203)14:23<1783::aid-adma1783>3.0.co;2-q.

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4

Wiese, Ulrich. "Book Review: Fine Chemicals for the Electronics Industry. By P. Bamfield." Angewandte Chemie International Edition in English 27, no. 3 (March 1988): 445–46. http://dx.doi.org/10.1002/anie.198804452.

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5

Chapleau, Francois. "Evolutionary Biology of Primitive Fishes. Proceedings of a Workshop Held April 14-17, 1985, at Bamfield Marine Station, Bamfield, Canada.R. E. Foreman , A. Gorbman , J. M. Dodd , R. Olsson." Quarterly Review of Biology 62, no. 1 (March 1987): 112–13. http://dx.doi.org/10.1086/415364.

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6

Qian, Pei-Yuan, and Fu-Shiang Chia. "Sexual reproduction and larval development of Rhaphidrilus nemasoma Monticelli, 1910 (Polychaeta: Ctenodrilidae)." Canadian Journal of Zoology 67, no. 10 (October 1, 1989): 2345–51. http://dx.doi.org/10.1139/z89-331.

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Adult specimens and egg masses of Rhaphidrilus nemasoma were collected in the low intertidal zone from Execution Rock, Bamfield, Vancouver Island, British Columbia, in June of 1986. Each egg mass contained about 1000 eggs. The eggs were green, spherical, and measured 125–145 μm in diameter. Larval development took place within the egg mass until the three-or four-setiger stage, at which time they emerged from the egg mass. Newly emerged larvae crawled on the bottom of the culture beakers and fed on benthic diatoms. Metamorphosis took place soon after emergence and was completed within 2 weeks. Paddle cilia were observed at the early trochophore stage, and their possible function, and the extremely high fecundity of this polychaete, are discussed.
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7

SANDERS, N. K., and J. J. CHILDRESS. "A Comparison of the Respiratory Function of the Haemocyanins of Vertically Migrating and Non-Migrating Pelagic, Deep-Sea Oplophorid) Shrimps." Journal of Experimental Biology 152, no. 1 (September 1, 1990): 167–87. http://dx.doi.org/10.1242/jeb.152.1.167.

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Present address and address for correspondence: Bamfield Marine Station, Bamfield, B.C. V0R 1B0, Canada. The effects of temperature and pH on haemocyanin oxygen-binding were compared for three species of diurnally vertically migrating and two species of non-migrating, pelagic oplophorid shrimps from the deep sea off the Hawaiian island of Oahu. The effects of L-lactate were also measured for three of these species. Haemocyanin concentrations were higher in the haemolymphs of oplophorids that migrate vertically (39.4, 46.8 and 57.6 mg ml−1) than in those of non-migrators (26.0 and 36.4 mg ml−1). Moderately high Bohr effects were found for vertically migrating and non-migrating oplophorids at all temperatures examined (5–25°C,φ=−0.46 to −0.80, and −0.55 to −0.88, respectively). The vertically migrating species had temperature-sensitive haemocyanins (ΔH=−23.1 to −41.2 kJ mol−1) across the normal temperature range (5–25°C) encountered during diurnal vertical migration. This results in haemocyanins that have relatively high affinities (P50=0.80-1.06 kPa at pH 7.8,5°C) at the low temperatures and low O2 partial pressures (approximately 2.66 kPa O2 at 5°C) found at depth, and low affinities (P50=4.00-4.66 kPa at pH 7.5, 25°C) at the higher temperatures and higher O2 partial pressures (approximately 13.33-17.50 kPa at 25°C) found in the near-surface waters. In contrast, the non-migrating species, which live within a narrower temperature range (3–6°C) and at a constant, low partial pressure of O2 (2.66-4.00 kPa), have haemocyanins with a high affinity for oxygen (P50=0.67-0.93 kPa at pH 7.8, 5°C) and lower sensitivity to temperature (ΔH=−4.2 to −21.6 kJ mol−11). The effects of temperature on the haemocyanin oxygen-affinities of the vertical migrators appear to be highly adaptive, enabling these haemocyanins to be functional across the entire depth (and thus, temperature and oxygen partial pressure) range encountered.
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8

McGurk, MD. "Advection, diffusion and mortality of Pacific herring larvae Clupea harengus pallasi in Bamfield Inlet, British Columbia." Marine Ecology Progress Series 51 (1989): 1–18. http://dx.doi.org/10.3354/meps051001.

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9

Martel, André L., and Jean-Sébastien Lauzon-Guay. "Distribution and density of glochidia of the freshwater mussel Anodonta kennerlyi on fish hosts in lakes of the temperate rain forest of Vancouver Island." Canadian Journal of Zoology 83, no. 3 (March 1, 2005): 419–31. http://dx.doi.org/10.1139/z05-028.

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We examined the distribution and abundance of glochidia of the freshwater mussel Anodonta kennerlyi Lea, 1860 on local fishes in three temperate rain forest lakes near Bamfield, on the west coast of Vancouver Island, British Columbia. Fishes involved in the life cycle of the mussel were the prickly sculpin (Cottus asper Richardson, 1836), threespine stickleback (Gasterosteus aculeatus L., 1758), Dolly Varden (Salvelinus malma (Walbaum, 1792)), and cutthroat trout (Oncorhynchus clarkii (Richardson, 1836)). For each lake, we assessed which fish was the most important for larval propagation and recruitment of the mussel by considering the fish's primary habitat, the percentage of fish in a sample with glochidia, and the abundance of glochidia on sampled fish. Also, an alternative method for quantifying the glochidia's "preference" for a host consisted of measuring the number of glochidia per unit area of fish body surface (larval density). We digitized the surface area of fins and head, i.e., the areas used by glochidia for settlement. Every fish species in each lake dispersed the glochidia. There was, however, a sharp gradient in the intensity of the fish–mussel linkage among fishes. Fishes that co-occurred most often with mussels, such as sculpins and sticklebacks, had the highest density of glochidia. Larval density on fishes also revealed the existence of between-lake differences in glochidia preference.
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10

Botta, Amy M., Rémy Rochette, Gary W. Saunders, Jason A. Addison, and Myriam A. Barbeau. "Evidence for genotypic differentiation between marine snails (Littorina sitkana) from the upper- and lower-intertidal zone in Bamfield Inlet (British Columbia, Canada)." Journal of Experimental Marine Biology and Ecology 461 (December 2014): 389–96. http://dx.doi.org/10.1016/j.jembe.2014.08.019.

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11

Radunz, Hans-Eckart. "Research and development management in the chemical industry. ByPeter Bamfield, VCH, Weinheim 1996, hard- cover, DM 118.00, ISBN 3-527-28778-7." Advanced Materials 9, no. 9 (1997): 759. http://dx.doi.org/10.1002/adma.19970090918.

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12

Shelley, Rowland M. "A new milliped of the genus Metaxycheir from the Pacific coast of Canada (Polydesmida: Xystodesmidae), with remarks on the tribe Chonaphini and the western Canadian and Alaskan diplopod fauna." Canadian Journal of Zoology 68, no. 11 (November 1, 1990): 2310–22. http://dx.doi.org/10.1139/z90-323.

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Metaxycheir pacifica, a new chonaphine xystodesmid milliped from Vancouver Island, British Columbia, inhabits decidous spots in the forests along the Pacific Ocean from Bamfield to China Beach Provincial Park. It displays a subcylindrical body, imparted by reduced paranota caudal to segment 4; an acropodite in the form of a broad, open loop; and an acicular prefemoral process with minute subapical barbules. It is segregated from the type species, M. prolata Buckett and Gardner, in northern Idaho, by over 600 km, and is the second western Canadian xystodesmid. The tribe Chonaphini occupies five areas of allopatric populations: that of M. pacifica; from central Oregon to western Montana; and three areas in the north central and eastern states. The Pacific coastal region harbors the most diverse fauna of western Canada, and a second center of diversity lies around Mount Revelstoke and Glacier national parks. The diplopod fauna of Alaska and western Canada consists of at least 5 orders, 13 families, 22 genera, and 24 species; of these, 5, 10, 16, and 17 are indigenous forms and 2, 4, 6, and 7 are introductions, respectively. The chordeumatoid family Rhiscosomididae and the genus Rhiscosomides are new to Canada; five allochthonus species, Cylindroiulus caeruleocinctus (Wood), Ophyiulus pilosus (Newport), Oxidus gracilis (C. L. Koch), Brachydesmus superus Latzel, and Polydesmus inconstans Latzel, are new to the western provinces; and the Polyxenidae (Polyxenida) and Caseyidae (Chordeumatida) are new to Alaska.
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13

PAGE, ROBERT. "Louise Bamfield and Richard Brooks (2006), Narrowing the Gap: The Fabian Commission on Life Chances and Child Poverty. London: Fabian Society. £9.95, pp. 224, pbk." Journal of Social Policy 37, no. 1 (December 3, 2007): 153–55. http://dx.doi.org/10.1017/s0047279407001596.

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14

Rodgers, Michael A. J. "Chromic Phenomena: Technological Applications of Color Chemistry By Peter Bamfield. Royal Society of Chemistry: Cambridge. 2001. xx + 374 pp. $59.50. ISBN 0-85404-474-4." Journal of the American Chemical Society 124, no. 46 (November 2002): 13960. http://dx.doi.org/10.1021/ja025205h.

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15

Mauseth, Gary, Gerald Erickson, Steven Brocco, and Gary Sergy. "BIOLOGICAL OPTIMIZATION OF HYDRAULIC CLEANING OF OILED COARSE-SEDIMENT BEACHES: PRELIMINARY RESULTS." International Oil Spill Conference Proceedings 1997, no. 1 (April 1, 1997): 271–75. http://dx.doi.org/10.7901/2169-3358-1997-1-271.

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ABSTRACT This document summarizes the findings of a pilot study that was designed to determine biologically optimum cleaning parameters. The objectives of this ongoing study are (1) to determine the biological effects on intertidal biota associated with the use of hydraulic cleaning techniques, and (2) to develop data on environmentally optimum combinations of hydraulic cleaning parameters for use by oil spill responders. The laboratory/pilot scale phase of the project was conducted at the Bamfield Marine Station on Barkley Sound, British Columbia, in the fall of 1995. The hydraulic cleaning parameters examined were (1) water pressures ranging from deluge or minimal pressure to approximately 345 kPa (50 psi), (2) water temperatures ranging from ambient temperature to 80 C, and (3) nozzle angles of 45 degrees and 90 degrees to the substratum. Both oiled and unoiled trials were conducted. Treatment combinations of these parameters were delivered using a pressure washer connected to a constructed washing apparatus. The biological effects produced by the treatments were examined in attached organisms colonizing cobbles collected from a donor beach in Barkley Sound. Species tested included the algae Fucus spp. and Mastocarpus papillatus; the barnacles Chthamalus dalli and Balanus glandula; and limpets in the family Lottiidae. Among the main findings of the laboratory/pilot study were the following: (1) both mortalities and oil removal efficiencies were found to rise most rapidly from low to high levels between 40° and 60°C, and between 18.6 and 60 kPa (2.7 and 8.7 psi); (2) oiled trials were found to produce greater mortalities than unoiled trials; and (3) 90-degree nozzle angles were found to produce greater mortalities in some cases than 45-degree nozzle angles.
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16

Wiese, Ulrich. "Fine chemicals for the electronics industry. Von P. Bamfield. The Royal Society of Chemistry, London 1986. V, 247 S., geb. £ 27.50. – ISBN 0-85186-636-0." Angewandte Chemie 100, no. 4 (April 1988): 609. http://dx.doi.org/10.1002/ange.19881000433.

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17

Collin, G. "Research and Development Management in the Chemical Industry. P. BAMFIELD VCH, Weinheim 1996, 180 Seiten, 43 Abbildungen, 9 Tabellen, geb., DM 118,-. ISBN 3-527-28778-7." Chemie Ingenieur Technik - CIT 69, no. 1-2 (February 1997): 146. http://dx.doi.org/10.1002/cite.330690129.

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18

Rüter, Jörn, and Michael Dröscher. "Wegweiser für junge Manager: Research and Development Management in the Chemical Industry. Von P. Bamfield. VCH, Weinheim, 1996. 180 S., geb., 118,-DM. ISBN 3-527-28778-7." Nachrichten aus Chemie, Technik und Laboratorium 46, no. 2 (February 1998): 246–47. http://dx.doi.org/10.1002/nadc.19980460225.

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19

BENNETT, G. "Peter Bamfield, Research and Development in the Chemical and Pharmaceutical Industry (3rd ed.), Wiley–VCH Verlag GmbH & Co., Weinheim, Germany (2006) 288 pp., Price: US$ 100.00, ISBN: 3-527-31775-9." Journal of Hazardous Materials 145, no. 3 (July 16, 2007): 521. http://dx.doi.org/10.1016/j.jhazmat.2007.02.065.

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20

Schopfer, Ulrich. "Manager oder doch lieber Forscher?: Research and Development Management in the Chemical and Pharmaceutical Industry. Von Peter Bamfield. Wiley-VCH, Weinheim 2003, 269 Seiten, geb. 75,- Euro. ISBN 3-527-30667-6." Nachrichten aus der Chemie 51, no. 12 (December 2003): 1285. http://dx.doi.org/10.1002/nadc.20030511225.

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21

"In the field: an interview with Chris Wood." Journal of Experimental Biology 225, no. 19 (October 1, 2022). http://dx.doi.org/10.1242/jeb.245121.

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Chris Wood is an Adjunct Professor at the University of British Columbia (UBC) and an Emeritus Distinguished Professor at McMaster University, Canada, investigating physiology and aquatic toxicology. After completing his BSc and MSc in Zoology with Dave Randall at UBC and a PhD with Graham Shelton at University of East Anglia, UK, Wood worked as a post-doc with Brian McMahon at the University of Calgary before joining the Biology Department, McMaster University, Canada. Wood talks about his experiences on the legendary R/V Alpha Helix expedition to the Amazon in 1976, his development of the Tusker Chamber in Kenya and more recent adventures at the Bamfield Marine Sciences Center on Vancouver Island, Canada.
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22

"Research & Development Management By P. Bamfield. VCH: Weinheim. 1997. 178 pp. ISBN 3-527-28778-7. £50.00." Organic Process Research & Development 2, no. 5 (September 1998): 338. http://dx.doi.org/10.1021/op980012t.

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23

Combs, Leah. "Impact of Surface Temperature and Salinity on the Ratio of Marine Diatoms to Dinoflagellates in the Trevor Channel Area." Inquiry@Queen's Undergraduate Research Conference Proceedings, February 20, 2018. http://dx.doi.org/10.24908/iqurcp.10029.

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In an effort to illuminate the factors that influence surface phytoplankton community composition with respect to marine diatoms (Class Bacillariophyceae) and dinoflagellates (Phylum Dinoflagellata), temperature and salinity data were collected. Phytoplankton samples were collected at six surface water locations along the Trevor channel near Bamfield, British Columbia where sampling locations were of known gradients of salinity and temperature. Each sample was analysed under a light microscope, where 2 µL volumes of seawater were counted for both dinoflagellate and diatom abundances. The ratio of diatoms to dinoflagellates was determined by averaging multiple counts of well-mixed samples from each station. Surface temperature and salinity data were collected using individual CTD (Conductivity, Temperature, Depth) casts, where only the surface values were considered. The phytoplankton ratios were then correlated to each of temperature and salinity. It was found with strong positive correlation that conditions with higher salinity favoured dinoflagellate-dominant communities (r = 0.97, p = 0.00013) and conditions with higher temperature favoured diatom-dominant communities (r = 0.92, p = 0.0035). This data may prove useful in studies regarding how small and large scale climatic changes affect phytoplankton community composition, and proves interesting directions in research as to how bottom-up controls on community structure can impact abundances of macro-organisms.
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24

McDevitt-Irwin, Jamie. "Understanding Color Polymorphism in the Sea Star, Pisaster ochraceus, Through Activity Levels and Dietary Preference." Inquiry@Queen's Undergraduate Research Conference Proceedings, February 20, 2018. http://dx.doi.org/10.24908/iqurcp.9306.

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Color polymorphism is found in a wide array of organisms ranging from copepods to black bears. Pisaster ochraceus, an intertidal sea star on the North Pacific West Coast, shows a striking color polymorphism including a range of orange, brown, maroon, and purple. Pisaster shows extensive geographic color variation, with >95% frequency of bright purple Pisaster in the Vancouver region; while the open pacific coast has a frequency distribution of 6-28% orange, 68-90% reddish-brown to dull purple, and a small percentage of bright purple. Maintenance of color polymorphism remains unknown, but one hypothesis suggests an underlying genetic component with regional-scale variation controlled by an ecological factor. Two ecological factors suggested are diet and salinity. This study analyzes the differences in dietary preference and activity levels between the color morphs in Bamfield, British Columbia. Pisaster was binned into two colors, orange and purple, for statistical analysis. Feeding laboratory trials showed no preference between the color morphs for Mytilus edilus or Mytilus californianus. Self-righting trials were performed in a low (20 psu) and controlled (35 psu) salinity and no significant difference was found between the color morphs. Interestingly, the activity levels of orange color morphs were not significantly different between low and control salinity. The results suggest there are ecological differences between the color morphs that still need to be evaluated.
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25

Pokharel, Prashanna, and Megan Ashley Hansen. "Where do sea lions live? Interspecific interactions and abiotic factors predict Steller sea lion habitat." Spectrum, no. 2 (October 24, 2018). http://dx.doi.org/10.29173/spectrum23.

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Habitat selection by species is dependent on both abiotic factors and species interaction. With regards to species interaction, competition and facilitation can play a critical role regarding how a species selects its habitat. Previous work has suggested that Steller sea lions (Eumetopias jubatus) have been displaced from their haulout sites due to competition with California sea lions (Zalophus californianus). The purpose of our study is to understand what factors determine the number of Steller sea lion present at a haul out site in the Barkley Sound area in Bamfield, BC. We tested this by asking if the number of Steller sea lions at a haulout site at a certain time is related to the presence of California sea lions (as a proxy for interspecific interaction), time of day, and tide height or a combination of two or three of these variables. After running a generalized mixed effect model and competing our models using Akaike Information Criteria, our results indicated that tide height was the best predictor for explaining the number of Steller sea lions present at a haulout site. However, our results also indicated that the presence of California sea lions and time of day may play a role in determining Steller sea lion haulout sites as well. We found from this study that both species interaction and abiotic factors need to be collectively considered when predicting the mechanisms underlying species habitat choice in marine ecosystems.
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