Publications about Woods Hole

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Effects of Light on Seagrass Photosynthesis, Growth and Depth Distribution

Dennison WC ·
1987

The relationships between light regime, photosynthesis, growth and depth distribution of a temperate seagrass, Zostera marina L. (eelgrass), were investigated in a subtidal eelgrass meadow near Woods Hole, MA. The seasonal light patterns in which the quantum irradiance exceeded the light compensation point (Hcomp) and light saturation point (Hsat) for eelgrass photosynthesis were determined.

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Sediment Ammonium Availability and Eelgrass (Zostera marina) Growth

Dennison WC, Aller RC, and Alberte RS ·
1987

The interaction of sediment ammonium (NH+4) availability and eelgrass (Zostera marina L.) growth, biomass and photosynthesis was investigated using controlled environment and in-situ manipulations of pore water ammonium concentrations. Sediment diffusers were used to create pore water diffusion gradients to fertilize and deplete ammonium levels in sediments with intact eelgrass rhizospheres.

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Photoadaptation and Growth of Zostera marina L (Eelgrass) Transplants Along a Depth Gradient (Page 1)

Photoadaptation and Growth of Zostera marina L (Eelgrass) Transplants Along a Depth Gradient

Dennison WC and Alberte RS ·
1986

Photosynthetic and growth responses were assessed in Zostera marina L. transplants within and beyond the natural extent of an eelgrass meadow in Great Harbor, Woods Hole, MA. Transplant survival and rapid growth inshore of the shallow edge of the meadow (0.5 and 0.8 m water depth) indicated a periodic disturbance factor maintaining the shallow edge of the meadow.

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Role of Daily Light Period in the Depth Distribution of Zostera marina (Eelgrass) (Page 1)

Role of Daily Light Period in the Depth Distribution of Zostera marina (Eelgrass)

Dennison WC and Alberte RS ·
1985

ABSTRACT: Photosynthesis, biomass and growth characteristics of the temperate seagrass, Zostera marina L. (eelgrass), were examined in a meadow in Great Harbor, Woods Hole, Massachusetts during June and August, 1982. Underwater lamps and light shading screens were placed at shallow (1.3 m) and deep (5.5 m) stations to lengthen and shorten daily light periods.

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Physiological ecology of the seagrass Zostera marina (Page 1)

Physiological ecology of the seagrass Zostera marina

Dennison WC ·
1984

The adaptive physiology of Zostera marina, L. (eelgrass) was investigated along a water depth gradient in order to assess the interactions of this prolific temperate seagrass with its environment. In situ and controlled-environment manipulations of light and sediment availability along with transplants beyond and within the eelgrass meadow were conducted.

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Photosynthetic Responses of Zostera marina L (Eelgrass) to Insitu Manipulations of Light-Intensity (Page 1)

Photosynthetic Responses of Zostera marina L (Eelgrass) to Insitu Manipulations of Light-Intensity

Dennison WC and Alberte RS ·
1982

Photosynthetic responses of the temperate seagrass, Zostera marina L., were examined by manipulations of photon flux density in an eelgrass bed in Great Harbor, Woods Hole, MA during August 1981. Sun reflectors and light shading screens were placed at shallow (1.3 m) and deep (5.5 m) stations in the eelgrass bed to increase (+35% to +40%) and decrease (-55%) ambient photon flux densities.

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