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  • Animals  (9,452)
  • People  (5,324)
  • Analytical Chemistry and Spectroscopy
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  • 1975-1979  (3,986)
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  • 1
    Publication Date: 2021-04-25
    Description: Niphargus is a speciose amphipod genus found in groundwater habitats across Europe. Three Niphargus species living in the sulphidic Frasassi caves in Italy harbour sulphur-oxidizing Thiothrix bacterial ectosymbionts. These three species are distantly related, implying that the ability to form ectosymbioses with Thiothrix may be common among Niphargus. Therefore, Niphargus-Thiothrix associations may also be found in sulphidic aquifers other than Frasassi. In this study, we examined this possibility by analysing niphargids of the genera Niphargus and Pontoniphargus collected from the partly sulphidic aquifers of the Southern Dobrogea region of Romania, which are accessible through springs, wells and Movile Cave. Molecular and morphological analyses revealed seven niphargid species in this region. Five of these species occurred occasionally or exclusively in sulphidic locations, whereas the remaining two were restricted to nonsulphidic areas. Thiothrix were detected by PCR on all seven Dobrogean niphargid species and observed using microscopy to be predominantly attached to their hosts' appendages. 16S rRNA gene sequences of the Thiothrix epibionts fell into two main clades, one of which (herein named T4) occurred solely on niphargids collected in sulphidic locations. The other Thiothrix clade was present on niphargids from both sulphidic and nonsulphidic areas and indistinguishable from the T3 ectosymbiont clade previously identified on Frasassi-dwelling Niphargus. Although niphargids from Frasassi and Southern Dobrogea are not closely related, the patterns of their association with Thiothrix are remarkably alike. The finding of similar Niphargus-Thiothrix associations in aquifers located 1200 km apart suggests that they may be widespread in European groundwater ecosystems.
    Keywords: amphipods; ecology; sulphide; symbiosis; systematics; taxonomy ; 551 ; Amphipoda ; Animals ; DNA, Bacterial ; Ecosystem ; Groundwater ; Molecular Sequence Data ; Phylogeny ; RNA, Ribosomal, 16S ; Romania ; Sequence Analysis, DNA ; Sulfur ; Symbiosis ; Thiothrix
    Language: English , English
    Type: article , publishedVersion
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  • 2
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    Marine Biological Laboratory Archives
    In:  MBL_ALBUM 1 PAGE 29_402
    Publication Date: 2023-01-12
    Description: Agersborg sitting at his lab bench with a microscope, looking towards the camera.
    Description: Inscriptions on image and/or album page: "#402/H. P. K./Agersborg/'23"
    Description: Digitized by: MBLWHOI Library
    Description: image/jpg black and white image reformatted digital
    Description: Photographs
    Keywords: People ; People
    Repository Name: Woods Hole Open Access Server
    Type: Still Image
    Format: image/jpeg
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  • 3
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    American Philosophical Society
    In:  American Philosophical Society, Mss.Rec.82
    Publication Date: 2023-01-12
    Description: Reminiscences and group discussion, made two days before Dr. Conklin's death
    Description: Originally APS Recording 26, transferred from phonograph record to open reel tape for the APS by the Library of Congress in 1970.
    Description: Reformatted digital
    Description: Conklin recounts with pride his first (1896) acceptance by the American Philosophical Society (Philadelphia) following presentation of his paper on evolution at a symposium -- Came to Woods Hole summer of 1890 to work on embryology of Crepidula for this PhD thesis, sponsored by Brooks,. Names of older scientists mentioned include Agassiz, HV Wilson (US Fish Commission), Thomas Hunt Morgan. -- Tells of his studies using Crepidula (a limpet, mollusk) which a re classical because this work traced the fates of cells from early cleavage into their final destinations in later germ layers
    Description: Audio
    Keywords: American Philosophical Society ; Embryology--History ; Biology--United States ; People ; People
    Repository Name: Woods Hole Open Access Server
    Language: English
    Type: Recording, oral
    Format: 10m22s
    Format: audio/mp3
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  • 4
    Publication Date: 2023-01-12
    Description: Dedicated to Louis Agassiz
    Description: 1 black and white video; sound (musical accompaniment only); reformatted digital
    Description: By the 1930s, the MBL had become "the" place to go during the summer for biological research and training. Luminaries such as Frank Lillie, Edmund Beecher Wilson, Edwin Grant Conklin, and Thomas Hunt Morgan took their students, packed up their families and research labs, and headed to the MBL. They worked in labs, ate together in the Mess, and they often lived in the limited on-campus housing. Life at the MBL was a life where fun, family, and science intertwined. This film, taken in 1935 by B. R. Coonfield of Brooklyn College, captures snippets of life at the MBL. Though the science and equipment are considerably updated and the faces and families have changed, many features remain the same today.
    Description: Includes (approximate starting time given): Panorama of the Woods Hole area [1:09], view from Cayadetta Wharf [3:12]; Activities in the harbor: passenger plane arrives [4:19], the "Naushon" (a coastal steamer ship operated as a ferry) [4:36], fog [5:05], fishermen [5:33], pleasure boats [7:12]; Oceanographic research vessel "Atlantis" [8:04]; Management: Dr. M. H. Jacobs, Director [9:43], Mr. MacNaught, Business Manager [9:59]; M.B.L. Trustees [10:28]; Unloading supplies [11:10]; Preparing specimens [12:02]; Mending nets [12:43]; Mr. George Gray [13:08]; Instruction: Invertebrate Class collecting expedition [13:55] to North Falmouth [15:15] and Nobska Point [16:54], Embryology Class [17:45], Protozoology Class [18:05], Physiology Class [18:24]; Investigation: Dr. F. R. Lillie [18:51], Dr. E. B. Wilson [19:20], Dr. T. H. Morgan [19:57], Dr. E. G. Conklin [20:22], Dr. C. R. Stockard [20:51], Dr. G. N. Calkins [21:19], Dr. G. H. Parker [21:50], and Dr. R. Chambers [22:13].
    Description: Video
    Keywords: Marine Biological Laboratory (Woods Hole, Mass.) ; Jacobs, M. H. (Merkel Henry) ; MacNaught, Frank M ; Gray, George Milton ; Lillie, Frank Rattray ; Wilson, Edmund B. (Edmund Beecher) ; Morgan, Thomas Hunt ; Conklin, Edwin Grant ; Stockard, Charles R. (Charles Rupert) ; Calkins, Gary N. (Gary Nathan) ; Parker, George Howard ; Chambers, Robert ; People ; Organisms ; Campus ; MBL Courses ; Local Area ; People ; Places ; Organizations
    Repository Name: Woods Hole Open Access Server
    Type: Moving Image
    Format: 23m
    Format: video/mp4
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  • 5
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    Marine Biological Laboratory Archives
    In:  MBL_ALBUM 1 PAGE 5_13B
    Publication Date: 2023-01-12
    Description: Matthews is seated facing the camera. There is a wall-mounted shelf behind him to his right on an otherwise blank wall.
    Description: Inscriptions on image and/or album page: Front: "#13 B" / "A. P. Matthews" / "'24"
    Description: Digitized by: MBLWHOI Library
    Description: image/jpg black and white image reformatted digital
    Description: Photographs
    Keywords: Mathews, Albert P. ; People ; People
    Repository Name: Woods Hole Open Access Server
    Type: Still Image
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  • 6
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    Marine Biological Laboratory Archives
    In:  MBL_ALBUM 1 PAGE 30_409
    Publication Date: 2023-01-12
    Description: McCutcheon is holding a pipe, and standing in front of a tree and facing the camera.
    Description: Inscriptions on image and/or album page: "#409/Morton/M./McCutcheon/'23"
    Description: Digitized by: MBLWHOI Library
    Description: image/jpg black and white image reformatted digital
    Description: Photographs
    Keywords: People ; People
    Repository Name: Woods Hole Open Access Server
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  • 7
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    Marine Biological Laboratory Archives
    In:  MBL_ALBUM 1 PAGE 35_462
    Publication Date: 2023-01-12
    Description: Keefe is standing with his arms folded behind him.
    Description: Inscriptions on image and/or album page: "#462/A. M. Keefe/'23"
    Description: Digitized by: MBLWHOI Library
    Description: image/jpg black and white image reformatted digital
    Description: Photographs
    Keywords: Keefe, Anselm Maynard ; People ; People
    Repository Name: Woods Hole Open Access Server
    Type: Still Image
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  • 8
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    Marine Biological Laboratory Archives
    In:  MBL_ALBUM 1 PAGE 46_1039
    Publication Date: 2023-01-12
    Description: Moses Kunitz (left) and N. West (right) working in a laboratory. Behind them are shelves of labeled glass containers and both men are examining objects in their hands.
    Description: Inscriptions on image and/or album page: #1039
    Description: Digitized by: MBLWHOI Library
    Description: image/jpg black and white image reformatted digital
    Description: Photographs
    Keywords: Kunitz, Moses ; People ; People
    Repository Name: Woods Hole Open Access Server
    Type: Still Image
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  • 9
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    Marine Biological Laboratory Archives
    In:  MBL_ALBUM 1 PAGE 36_456
    Publication Date: 2023-01-12
    Description: Hitchens is sitting at a lab bench with his right hand resting on a microscope.
    Description: Inscriptions on image and/or album page: "#456/A.P. Hitchens/'23"
    Description: Digitized by: MBLWHOI Library
    Description: image/jpg black and white image reformatted digital
    Description: Photographs
    Keywords: People ; People
    Repository Name: Woods Hole Open Access Server
    Type: Still Image
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  • 10
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    Marine Biological Laboratory Archives
    In:  MBL_ALBUM 1 PAGE 9_32
    Publication Date: 2023-01-12
    Description: Jones is standing on the grass next to a building. A window and the wall of the building are visible on his left side, and he is holding a hat in his right hand.
    Description: Inscriptions on image and/or album page: Front: ң32Ӡ/ "L. R. Jones" / "'21"
    Description: Digitized by: MBLWHOI Library
    Description: image/jpg black and white image reformatted digital
    Description: Photographs
    Keywords: People ; People
    Repository Name: Woods Hole Open Access Server
    Type: Still Image
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