at the level of a pilot, experimental harvest), the
rockweed harvest is not detrimental to the resource.
These conditions also attract a host of gamefish that find both shelter and forage among the
rockweed and limestone boulders.
Structural refuge was provided by clumps of live
rockweed algal fronds tied to small (10 X 10 X 4 cm) concrete blocks, which allowed them to float vertically from the substrate in a natural position.
To the uninitiated, the tank looks much like other excellent aquarium ecosystem exhibits: Artificially generated waves crash against a wall of rocks covered with
rockweed, brown kelp, mussels and barnacles; a periwinkle climbs up the glass wall of the tank; fish glide behind rocks in the turbid water.
This area is covered with large limestone outcroppings that are interspersed with
rockweed. This combination creates just the right habitat for a variety of gamefish.
In addition, bird foraging efficiency, while preying on intertidal invertebrates, are negatively affected by substrate heterogeneity (e.g., Common eiders on
Rockweed beds; Hamilton & Nudds 2003; also Marsh 1986).
However, clipping experiments have failed to induce increased terpenoid chemical defenses in the green seaweeds Halimeda, Udotea, and Caulerpa (Paul and Van Alstyne 1992) and clipping or urchin grazing failed to induce higher levels of phlorotannins in the kelps Ecklonia and Alaria or in the
rockweed Sargassum (Pfister 1992, Steinberg 1994, 1995).
Before the first kelp farms started in Maine about a decade ago, if you wanted to cook with edible seaweed (not to be confused with the decidedly undelicious
rockweed that washes up on beaches), you'd have go to the shore and forage it yourself.
Live
rockweed (Ascophyllum) used as a shipping medium for the live transport of marine baitworms from Maine.
1 thought, 'What on earth are they doing?'" As Seeley watched, the skiffs fanned out along the shoreline, and the pilot of each boat lifted a strange metal rake fitted with a cutting blade, reached out over the side, and filled his boat with
rockweed, the dominant seaweed of the North Atlantic intertidal zone.
The area is covered with limestone outcroppings that are interspersed with
rockweed. Both the rocks and vegetation make this spot a challenge to fish but they are what at tract the fish.
Rockweed, a specialist in fit-outs for restaurants and shops launched from its stall its Darna brand of products including LED lamps, sensor trash bins and fancy clocks.
Rockweed, a specialist in fit-outs for restaurants and shops, launched from its stall its Darna brand of products including LED lamps, sensor trash bins and fancy clocks.
Rockweed, a specialist in fitouts for restaurants and shops launched from its stall its Darna brand of products including LED lamps, sensor trash bins and fancy clocks.
