Identification

Title

TN249-10 Microzooplankton Grazing and Phytoplankton Growth Rates

Alternative title(s)

102.167

Abstract

During the R/V Thompson long spring Bering Sea Ecosystem Study-Bering Sea Integrated Ecosystem Research Program (BEST-BSIERP) cruise in May-June 2010, 18 dilution experiments were carried out. We compared the rates of algal growth in whole water and in 10 % whole water diluted with particle-free filtered water over a 24 hour day- night cycle at light levels of 15% to 30% of surface incident light. 11 experiments yielded significant microzooplankton grazing rates. Phytoplankton growth rates varied from slightly negative, probably due to a senescent diatom bloom, to a maximum daily rate of 0.39 d-1 where initial chl-a concentration was low, only 0.5 micro-g l-1. Microzooplankton grazing impact ranged from negligible to more that 3 times daily phytoplankton growth. On average, microzooplankton grazing mortality was about 63% of daily phytoplankton growth. The average grazing impact in 2010 was higher than that found in the spring during the 2008 and 2009 cruises when much of the cruise track was in heavy sea ice. Because less time was spent in the ice and the season was more advanced, the experiment incubation temperatures, from 0.4 to 5 degrees C, were somewhat higher during the 2010 cruise compared to the previous 2 spring cruises. BEST-BSIERP together are the Bering Sea project.

Resource type

dataset

Resource locator

https://data.eol.ucar.edu//dataset/102.167

protocol: https

description: Dataset homepage

https://data.eol.ucar.edu/cgi-bin/codiac/fgr_form/id=102.167

protocol: https

name: TN249-10 Microzooplankton Grazing and Phytoplankton Growth Rates Data Order Form

description: Dataset order request form. Data files are made available via FTP.

function: order

Unique resource identifier

code

102.167

codeSpace

Dataset language

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

biota

oceans

Keywords

Keyword set

keyword value

dataset

originating controlled vocabulary

title

Resource Type

reference date

date type

revision

effective date

2014-10-16

Keyword set

keyword value

Ships

R/V Thomas G. Thompson

Keyword set

keyword value

Biomass

Plankton

Ecology

Arctic

Abundance

Biology

Keyword set

keyword value

EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > ZOOPLANKTON

EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > FOOD-WEB DYNAMICS

originating controlled vocabulary

title

Global Change Master Directory (GCMD)

reference date

date type

revision

effective date

2018-02-27

Geographic location

West bounding longitude

-178.50000

East bounding longitude

-163.50000

North bounding latitude

62.00000

South bounding latitude

56.00000

Temporal reference

Temporal extent

Begin position

2010-05-11T06:00:00Z

End position

2010-06-10T10:00:00Z

Dataset reference date

date type

publication

effective date

2010-07-06T10:35:43Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

none

Limitations on public access

none

Responsible organisations

Responsible party

contact position

EOL Data Support

organisation name

UCAR/NCAR - Earth Observing Laboratory

full postal address

PO Box 3000

Boulder

80307-3000

email address

datahelp@eol.ucar.edu

web address

https://data.eol.ucar.edu/

responsible party role

pointOfContact

Responsible party

organisation name

Oregon State Univ.

full postal address

College of Oceanic and Atmospheric Sciences (COAS),104 Oceanography Admin Bldg

Corvallis

97331-5503

telephone number

541-737-4369

email address

sherre@coas.oregonstate.edu

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

contact position

EOL Data Support

organisation name

UCAR/NCAR - Earth Observing Laboratory

full postal address

PO Box 3000

Boulder

80307-3000

email address

datahelp@eol.ucar.edu

web address

https://data.eol.ucar.edu/

responsible party role

pointOfContact

Metadata date

2024-02-07T22:49:16Z

Metadata language

eng; USA