Phytoplankton distributions across the Texas-Louisiana shelf in relation to coastal physical processes /

Accessory pigments were used to infer phytoplankton classes

Bibliographic Details
Main Author: Neuhard, Carrie Ann, 1968-
Format: Thesis eBook
Language:English
Published: [Place of publication not identified] : [publisher not identified] ; 1994.
Subjects:
Online Access:Link to OAKTrust copy
Description
Summary:Accessory pigments were used to infer phytoplankton classes
an anticyclonic Loop Current eddy that was present to the
and coastal physical processes were investigated as part of
associated with a local increase in chlorophyll in the middle
bottom waters where a distinct chlorophyll maximum was found.
chlorophyll maximum was associated with the nitracline on the
class. Cyanobacteria, dinoflagellates and other small
concentrations. On the middle shelf, benthic regeneration of
flagellates were also present on the inner shelf in small
flagellates.
integrated chlorophyll levels were lower than the inner
layers of the water column. On the middle shelf, where
nitracline was found at 50 m. This shoaling was attributed to
nutrients provided a possible source of nutrients to the
obtained using a Sea-Bird 911plus CTD and analyzed for
outer shelf, which was located near 75 in over most of the
phytoplankton population was composed mainly of small
pigments using high performance liquid chromatography (HPLC).
present. High chlorophyll concentrations (up to 7475 ng 1-1)
shelf, a mixed phytoplankton community was found. A deep
shelf. On the western edge of the study area (94'00' W), the
Study (LATEX A). Surface to bottom water samples were
The relationships between phytoplankton pigment distributions
the Texas-Louisiana Shelf Circulation and Transport Processes
Upwelling at the eastern edge of the study area was
were found on the inner shelf where diatoms were the dominant
west of the study area during the cruise. The deep
Item Description:"Major subject: Oceanography".
Vita.
Physical Description:xi, 205 leaves : illustrations, maps ; 28 cm.
Also available online.
Bibliography:Includes bibliographical references.