Benthic productivity and marine resources of the Gulf of Maine

United States. National Oceanic And Atmospheric Administration. Office Of Undersea Research, Ivar Babb, Michael De Luca

Description

NATIONAL UNDERSEA RESEARCH PROGRAM Research 88-3Report m cover).reported 15 of the holdfast alsoof 2 to 3 The structureperiod years. which shows two toto this usuallyappears support interpretation, whorls ofthree distinctseven) haptera. Locally,(occasionally of broad clear areaswe observed a surroundingstriking pattern the Laminaria These halos were due toof plants. presumablymany effects from the fronds. cribrosumAgarumlong sweepingwhiplash the recorded smallwas (40m),deepest kelp although non-digitate inthe Laminaria were also observed theplants genusresembling Laminariasame zone but could not be collected.(35-40m) withwas rare and interspersed sp.longicruris extremely at the shallower depths. and onFoliose red were dispersed among kelp ridgesalgae formed narrow densebetween dense stands of anemones where they or asalso occurred tiny, inconspicuouspatches. They singly was Ptilota serrata andtufts. Dominant in this assemblage We also foundrubens (about equally abundant).Phycodrys alata andcristata , Membranoptera PhyllophoraCallophyllis truncata (Table 2). were found in allBoth calcified and noncalcified crusts thanzones. crusts are found shallower (to 55m)Fleshy slightly abundance wasare coralline 63 Coralline(to m) (Table 2). observed to coverconsiderable at over 50 meters and was updepths crustto 80% of the rock substrate in The dominant fleshyplaces. werewas and the dominant coralline crustsPeyssonnelia m.

Sujets

• Marine Biology
• Maine

Informations

• Publié par: les_archives_du_savoir
• Nombre de lectures: 6
• Langue: English
• Poids de l'ouvrage: 10 Mo

Extrait

NATIONAL UNDERSEA RESEARCH PROGRAM Research 88-3Report
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Benthic and MarineProductivity
Resources of the Gulf of Maine
Ivar Babb and Michael De Luca,
Editors
1988May
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**ttS ofNATIONAL UNDERSEA ResearchRESEARCH PROGRAM 88-3Report
Benthic and MarineProductivity
Resources of the Gulf of Maine
Ivar Babb and Michael De Luca,
Editors
1988May
.^oWMoay,,
U.S. DEPARTMENT OF COMMERCE
C. William Verity, Secretary
Hok: art ctupl'CA^Ap-^-5^
National Oceanic and AdministrationAtmospheric
William E. Evans. Under Secretary
5^ -*fa Oceanic and ResearchAtmospheric
O. Fletcher. Assistant AdministratorJoseph
Office of Undersea Research
David B. Duane. DirectorTable of Contents
Page
-CHAPTER I. INTRODUCTION GULF OF MAINE IX
-CHAPTER II. BENTHIC ECOLOGY HARD SUBSTRATA
-Session Benthic HardSummary: Ecology
Substrata. Robert S. Steneck 3
water benthic zonation inDeep the Gulf ofalgal
Maine. Robert L. Robert S.Vadas, Steneck 7
ofComparative shallowphotosynthetic physiology
& water of Laminaria indeep populations the Gulf
of Maine. Ian R. Janet E.Davison, Kuebler,
Robert S. & Robert L. VadasSteneck, 27
Early incommunity development experiments
subtidal habitatsrocky of(Gulf Maine,
30-80 M). Kenneth P. Jon D.Sebens, Witman,
Robin L.A. & Edward J.Allmon, JrManey, 45
Benthic structure at a subtidalcommunity rock
in thepinnacle central Gulf of Maine.
Jon D. Witman & Kenneth P. Sebens 67
-CHAPTER II. BENTHIC ECOLOGY SOFT SUBSTRATA
-Session BenthicSummary: SoftEcology
Substrata. Les Watling 107
General distribution of macrobenthicpatterns
in the Gulf of Maine.assemblages Les Watling,
John & Linda McCannDearborn, 109
abundance & behaviorDistribution, of sea pens,
Pennatula in the Gulf of Maine.sp. Richard W.
ElizabethLangton, &Langton, Roger Theroux,
R. UzmannJoseph 121
A of the macrobenthos in the Gulf ofsurvey
Maine manned submersibles . Richard W.using
& R.Langton UzmannJoseph 131
inCHAPTER III. SEDIMENT DYNAMICS
Session Gulf of Maine Sediment Dynamics.Summary:
Daniel F. 141Belknap
the nearshore Gulf of Maine:Sediment ofdynamics
and remotesubmersible experimentation sensing.
Daniel F. T. & Donald H. W.Belknap, Joseph Kelley,
Robbins 143
CHAPTER IV. BENTHIC-PELAGIC COUPLING
Session Summary: Benthic-Pelagic Coupling.
Marsh 179Youngbluth
The role of innepheloid layers benthic-pelagic
David W.Quay Dortch, Townsend,coupling.
Richard W. & Lawrence M. 181Spinrad, Mayer
krill & food webs:Epibenthic impact particle
detection submersible. Marsh J.by Youngbluth,
Thomas G. Peter J. Charles A.Bailey, Davoll,
Pamela I.Jacoby, Blades-Eckelbarger,
A. Griswold 205Carolyn
& fabrication of a fluffDesign layer sampler.
Lawrence Giselher JohnMayer, Gust, Riley,
& Daniel Schick 215
CHAPTER V. FISHERIES
Session Fisheries. Richard W. 227Summary: Langton
Sea manned-scallop experimentstagging using
submersibles . Paul Arthur Berkman 231
of the seaEcology scallop Placopecten
in the Gulf ofMagellanicus (Gmelin, 1791) Maine,
-U.S.A. a Richard W.preliminary report.
William E. Robinson 243Langton,
characteristics of beds onPhysical herring egg
the eastern Maine coast. David K. Stevenson,
Robert L . 257Knowles
IVPREFACE
The Office of Undersea Research of the National Oceanic and
Administration NOAA in situ researchAtmospheric ( ) supports
a of mannedutilizing variety systems submersibles,including
saturation vehicles ROVs and airhabitats, remotely operated ( ) ,
and mixed scuba. There are five National Underseagas currently
Research Centers NURCs that on from NOAA.( ) Theseoperate grants
centers are located at the Caribbean Marine Research Center,
Riviera the of ConnecticutBeach, Florida, atUniversity Avery
Dickinson at St.Point, theFairleigh Croix, USVI,
of Hawaii at and the of NorthManoa,University University
Carolina at Wilmington.
NOAA's Office of Undersea Research facilities forprovides
scientists to conduct research NOAA's missionsupporting
in the areas of: oceanicobjectives global processes, pathways
and fate of materials in the ocean and Great coastalLakes,
oceanic and estuarine ocean and mineralprocesses, lithosphere
andresources, biological productivity living resources, diving
and and oceansafety physiology, technology.
The series of in this and apapers presented companion
volume are the result of a held at the Nationalsymposium
Undersea Research of Connecticut atCenter, University Avery
Point on October 1987. The addressed four21-23, symposium major
research themes: marine resources in the Gulf of Maine, global
vent oceanprocesses, anddeep-water ecology, technology,
at the arebiological productivity. Papers presented symposium
in two volumes: Benthic and Marinepublished 1) Productivity
Resources of the Gulf of Maine and Global2) Venting, Midwater,
and Benthic Processes. As we undertook toEcological editors,
standardize elements of the and inpapers, clarify statements,
other assist the session inchairman the workways they performed
in these The herein meetassembling papers. papers presented
of to the Office ofrequirements Undersea Research.grantees
We Marcia Collie with thanks for heracknowledge special
assistance with the final of these volumes. Herpreparation
talent for and with of the toexperience manuscripts
arecamera-ready copy sincerely appreciated.
Ivar G. Babb Michael P. De Luca
Science Coordinator ScientistProgram
Gulf of Maine Office of Undersea Research
National Undersea Research Center NOAA
of Connecticut 6010 Executive BoulevardUniversity
at Point Suite 805Avery
CT 06340Groton, MD 20852Rockville,Benthic andProductivity
Marine Resources of the
Gulf of Maine
VI 1