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Full-Text Articles in Physical Sciences and Mathematics

What Does It Take To Become A Marine Scientist?, Virginia Institute Of Marine Science Sep 1999

What Does It Take To Become A Marine Scientist?, Virginia Institute Of Marine Science

Reports

Note: This material may not meet current educational standards and is presented as part of the Institute's historical publications.


The Crest, Summer 1999, Virginia Institute Of Marine Science Jul 1999

The Crest, Summer 1999, Virginia Institute Of Marine Science

Reports

Table of Contents:

  • New Research Aquarium System
  • Finfish Aquaculture at VIMS
  • Virginia Creates State Research Reserve System
  • Pollution-Laden Sediments In Constant Flux
  • Survey of Mid-Atlantic Sea Scallop Closed Areas
  • Pfiesteria Update
  • New Computer Program Helps Planners Balance Growth, Protection
  • Virginia Sea Grant to Administer Commercial Fishery Resource Program
  • VIMS Stranded Sea Turtle Project Underway Coastal Sediments Offer Clues to Climate Change, Pollution
  • Seemingly Barren Habitat Proves Vital for Economically Important Virginia Fish (juvenile flounder)


Estimation Of Bacterial Respiration And Growth Efficiency In The Ross Sea, Antarctica, C. A. Carlson, N. R. Bates, H. W. Ducklow, D. A. Hansell Jan 1999

Estimation Of Bacterial Respiration And Growth Efficiency In The Ross Sea, Antarctica, C. A. Carlson, N. R. Bates, H. W. Ducklow, D. A. Hansell

VIMS Articles

Seawater cultures were conducted in large volume (36 l) gas impermeable tri-laminate bags for the purpose of empirically deriving bacterial growth efficiency (BGE) and carbon conversion factors (CCF) in the south central Ross Sea. This experimental design allowed for concomitant measurements of metabolic reactants (loss of total and dissolved organic carbon [TOC and DOG]) and products (gain of total carbon dioxide [TCO2] and bacterial biomass) to be made from a single incubation vessel. Some previous studies have relied on proxy measurements (e.g. O-2, H-3-thymidine incorporation and cell abundance) to determine BGE and CCF rather than direct carbon measurements. Our experimental …


Bacterial Growth In Experimental Plankton Assemblages And Seawater Cultures From The Phaeocystis Antarctica Bloom In The Ross Sea, Antarctica, H. W. Ducklow, C. Carlson, Walker O. Smith Jr. Jan 1999

Bacterial Growth In Experimental Plankton Assemblages And Seawater Cultures From The Phaeocystis Antarctica Bloom In The Ross Sea, Antarctica, H. W. Ducklow, C. Carlson, Walker O. Smith Jr.

VIMS Articles

A series of seawater culture experiments was carried out during the Phaeocystis antarctica bloom in the Ross Sea polynya (76.5 degrees S, 180 degrees W; November to December 1994 and December 1995 to January 1996) to examine bacterioplankton growth and derive empirical factors for estimating bacterial production rates. Bacterial growth was exponential over 3 to 10 d in all experiments, at rates of ca 0.1 to 0.7 d(-1), even in persistently cold waters (-2 to + 1 degrees C). Growth rates were lower in the early part of the bloom (early to mid-November) and highest during the period of peak …


Phytoplankton Growth Rates In The Ross Sea, Antarctica, Determined By Independent Methods: Temporal Variations, Walker O. Smith Jr., D. M. Nelson, S. Mathot Jan 1999

Phytoplankton Growth Rates In The Ross Sea, Antarctica, Determined By Independent Methods: Temporal Variations, Walker O. Smith Jr., D. M. Nelson, S. Mathot

VIMS Articles

The development of the seasonal phytoplankton bloom in the Ross Sea was studied during two cruises. The first, conducted in November-December 1994, investigated the initiation and rapid growth of the bloom, whereas the second (December 1995-January 1996) concentrated on the bloom's maximum biomass period and the subsequent decline in biomass. Central to the understanding of the controls of growth and the summer decline of the bloom is a quantitative assessment of the growth rate of phytoplankton. Growth rates were estimated over two time scales with different methods. The first estimated daily growth rates from isotopic incorporation under simulated in situ …


The Crest, Winter 1999, Virginia Institute Of Marine Science Jan 1999

The Crest, Winter 1999, Virginia Institute Of Marine Science

Reports

Table of Contents:

  • Experimental Fishery on Georges Bank Holds Promise for the Scallop Industry
  • New VIMS Center Boosts Aquafarming
  • Invader Threatens Stressed Ecosystem (Rapa Whelk)
  • Microscopic Phytoplankton Live Large
  • Reality By the Numbers (Computer Modeling)
  • Tautog Research
  • Latest Returns From the Game Fish Tagging Program
  • Educational Landscape Center (VIMS Teaching Marsh)
  • Responding to the Chesapeake Executive Council Directive for Wetlands Protection and Restoration Goals
  • Dangers to Blue Crabs Accelerating


Virginia Game Fish Tagging Program Annual Report 1998, John A. Lucy, C.M. Bain, M. D. Arendt Jan 1999

Virginia Game Fish Tagging Program Annual Report 1998, John A. Lucy, C.M. Bain, M. D. Arendt

Reports

The Virginia Game Fish Tagging Program (VGFTP), a cooperative project of the Virginia Marine Resources Commission and the Virginia Institute of Marine Science (VIMS), set records for fish tagged and fish recaptured during 1998, its fourth year of operation.


Oyster Reef Habitat Restoration : A Synopsis And Synthesis Of Approaches; Proceedings From The Symposium, Williamsburg, Virginia, April 1995, Mark Luckenbach, Roger L. Mann, James A. Wesson Jan 1999

Oyster Reef Habitat Restoration : A Synopsis And Synthesis Of Approaches; Proceedings From The Symposium, Williamsburg, Virginia, April 1995, Mark Luckenbach, Roger L. Mann, James A. Wesson

Reports

This volume has its origin in a symposium held in Williamsburg, VA in April 1995, though most of the chapters have been significantly revised in the interim. The primary purpose of the symposium was to bring together state fisheries managers involved in fisheries-directed oyster enhancement and research scientists to refine approaches for enhancing oyster populations and to better develop the rationale for restoring reef habitats. We could hardly have anticipated the degree to which this been successful. In the interim between the symposium and the publication of this volume the notion that oyster reefs are valuable habitats, both for oysters …