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Click on figures for larger images |
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Figure 25. Map of the locations of bottom photographs taken in the study area during cruise 2013-005-FA on the research vessel (RV) Rafael. |
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Figure 26. Photograph of a boulder at station 298_20. The boulder is covered with anemones, hydrozoans, barnacles, starfish, and tunicates and (or) sponges. |
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Figure 27. Photograph of a sandy sea floor at station 298_9. |
Bottom Photography
Bottom photographs and video from each station provide information on the geology, benthic ecology, and intrastation variability. Between 1 and 8 bottom photographs and several minutes of video were taken at each station in the study area (fig. 25). Photographs show many boulders are covered with flora and fauna such as hydrozoans, anemones, algae, tunicates and (or) sponges, and snails (fig. 26). Sandy areas are mostly rippled and they generally have scattered shells and shell hash, burrows, and worm or amphipod tubes (fig. 27).
Low-resolution images (150 x 113 pixels) of the photographs can be viewed by browsing the thumbnails in the photograph gallery below. These thumbnails are linked to medium-resolution images (600 x 450 pixels) for more detailed viewing. A .zip file with all the medium-resolution images can be accessed by clicking here. The .zip file also contains metadata about the photographs and their acquisition. Alternatively, a .zip file containing the full-resolution images (3648 x 2736 pixels) and metadata can be accessed by clicking here. The images can be identified by using the .jpg image names in the gallery below.
Photograph Gallery
Station / Lithologic Description
298_1 / Current-rippled sand with shells and shell hash concentrated in the ripple troughs. Hermit crabs are present. |
298_1a |
298_1b |
298_1c |
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298_1d |
298_1e |
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298_2 / Sand with burrows, little scattered shell hash, and abundant worm tubes. Hydrozoans, skate, and hermit crabs are present. |
298_2a |
298_2b
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298_3 / Fine sand with abundant worm tubes. Burrowing anemones, skates, crabs, and scattered shells are present. |
298_3a |
298_3b |
298_3c |
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298_3d |
298_3e
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298_4 / Sand with some ripples and coarser grains in the ripple troughs than on the ripple crests. Amphipod tubes, hydrozoans, skates, fin fish, and hermit crabs are present. |
298_4a |
298_4b |
298_4c
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298_5 / Fine sand with burrows and abundant worm and amphipod tubes. Burrowing anemones and hydrozoans are present. |
298_5a |
298_5b |
298_5c |
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298_5d |
298_5e
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298_6 / Sand with clasts composed of silty clay, scattered shells, burrows, and shell hash. Skate, urchins, crabs, starfish, and moon-snail and skate egg cases are present. |
298_6a |
298_6b |
298_6c |
298_6d
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298_7 / Silty sand with abundant amphipod and worm tubes and burrows. Snails, animal tracks, and a flounder are present. |
298_7a |
298_7b |
298_7c
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298_8 / Rippled and burrowed sand and boulders covered with hydrozoans, anemones, and algae. Scattered shells and shell hash are present. |
298_8a |
298_8b |
298_8c |
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298_8d |
298_8e
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298_9 / Rippled fine sand with little scattered shell hash. Burrows, crabs, and animal tracks are present. |
298_9a |
298_9b |
298_9c |
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298_9d |
298_9e
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298_10 / Current-rippled fine sand with shells and shell hash concentrated in ripple troughs. Burrows and sand dollars are present. |
298_10a |
298_10b |
298_10c |
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298_10d |
298_10e
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298_11 / Rippled sand with little scattered shell hash. Hermit crabs, flounder, algae, and animal tracks are present. |
298_11a |
298_11b |
298_11c |
298_11d
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298_12 / Fine sand with abundant amphipod tubes, burrows, scour features around obstructions, and scattered shells present. |
298_12a |
298_12b |
298_12c |
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298_12d |
298_12e |
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298_13 / Rippled and burrowed sand with boulders and scattered shells and little shell hash. Boulders are covered with tunicates and (or) sponges. Skate and sea robin are present. |
298_13a |
298_13b |
298_13c |
298_13d
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298_14 / Current-rippled sand with shells and shell hash concentrated in ripple troughs. Sand dollars are present. |
298_14a |
298_14b |
298_14c
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298_14d |
298_15 / Current-rippled sand with shells and shell hash concentrated in ripple troughs. |
298_15a |
298_15b |
298_15c |
298_15d |
298_15e |
298_15f
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298_16 / Current-rippled sand with patches of abundant shells and shell hash (primarily mussel) and pea gravel. Shell hash concentrated in ripple troughs. Skate egg cases are present. |
298_16a |
298_16b |
298_16c |
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298_16d |
298_16e
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298_17 / Cobbles, gravel, and sand with algae, hydrozoans, hydroids, tunicates and (or) sponges, starfish, anemones, shells, snails, dead man’s fingers and other algae, sea robin, skate, and skate egg case are present. |
298_17a |
298_17b |
298_17c |
298_17d |
298_17e |
298_17f
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298_18 / Cobbles, gravel, and sand with algae, hydrozoans, hydroids, burrowing anemones, tunicates and (or) sponges, crabs, starfish, and skate egg cases present. |
298_18a |
298_18b |
298_18c |
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298_18d |
298_18e
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298_19 / Current-rippled sand with shells and shell hash concentrated in ripple troughs. Skate egg cases and amphipods are present. |
298_19a |
298_19b |
298_19c |
298_19d
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298_20 / Rippled sand, gravel, and boulders covered with anemones and hydrozoans. Tunicates and (or) sponges, starfish, snails, barnacles, skate egg case, animal tracks, shells, and shell hash are present. |
298_20a |
298_20b |
298_20c |
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298_20d |
298_20e |
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298_21 / Gravelly sediment with abundant shells and shell hash. Hydrozoans and skates are present. |
298_21a |
298_21b |
298_21c |
298_21d |
298_21e |
298_21f |
298_21g |
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298_22 / Boulders, cobbles, gravel, and intervening patches of rippled sand with kelp, other algae, tunicates and (or) sponges, snails, and abundant mussels present. |
298_22a |
298_22b |
298_22c |
298_22d |
298_22e |
298_22f |
298_22g |
298_22h
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298_23 / Gravelly sediment with abundant shells and shell hash. Thin layer of sand above gravel. Hermit crabs, snails, and moon-snail egg cases are present. |
298_23a |
298_23b |
298_23c |
298_23d |
298_23e |
298_23f |
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298_24 / Rippled sand with scattered mussel and other shells and shell hash concentrated in ripple troughs. Animal tracks, burrows, and moon-snail egg case are present. |
298_24a |
298_24b |
298_24c
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298_24d |
298_25 / Rippled sand with shells and shell hash concentrated in ripple troughs. Small clams, sand dollars, snails, kelp, and other algae are present. |
298_25a |
298_25b |
298_25c |
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298_25d |
298_25e |
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298_26 / Boulders, cobbles, and gravel overgrown with sessile fauna and flora. Kelp, other algae, and a lobster pot are present. |
298_26a |
298_26b |
298_26c
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298_27 / Faintly rippled sand and gravelly sediment with scattered shells and shell hash and scour depressions around obstructions. Tunicates and (or) sponges, hydrozoans, barnacles, seaweed, sea robin, and moon-snail and skate egg cases are present. |
298_27a |
298_27b |
298_27c |
298_27d |
298_27e |
298_27f
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298_28 / Sand with burrows, worm tubes, tunicates, hydrozoans, snails, and scattered shells. |
298_28a |
298_28b
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298_29 / Sand with burrows, worms, cancer and hermit crabs, snails, and scattered shells and shell hash. |
298_29a |
298_29b |
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298_30 / Gravel and boulders with patches of intervening sand. Boulders are covered with hydrozoans, algae, tunicates and (or) sponges, and abundant anemones. Moon snails, crabs, and skate egg cases are present. |
298_30a |
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298_31 / Rippled and burrowed sand with scattered shells and shell hash concentrated in the ripple troughs. |
298_31a |
298_31b |
298_31c |
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298_31d |
298_31e |
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298_32 / Rippled sand with shells, shell hash, and coral fragments in the ripple troughs. Sea robin, sand dollars, and skate egg case are present. |
298_32a |
298_32b |
298_32c |
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298_32d |
298_32e
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298_33 / Boulders, gravel, and sand with burrows and amphipod tubes. Abundant sea life is present including: anemones, hydrozoans, tunicates, sponges, shrimp, skate, sea robin, starfish, lobster, crabs, urchins, and snails. Skate and moon-snail egg cases, shells, and shell hash are present. |
298_33a |
298_33b |
298_33c |
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298_34 / Rippled sand with burrows, abundant mussel and other shells, and shell hash. Crabs, snails, animal tracks, moon-snail and skate egg cases, and sea robin are present. |
298_34a
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298_35 / Sand with abundant shells and shell hash. Burrows, amphipods, skate, hydroids, hydrozoans, and moon-snail egg case are present. |
298_35a |
298_35b |
298_35c |
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298_35d |
298_35e
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298_36 / Steep wall of reddish brown and gray, layered outcrops and rip-up clasts composed of silty clay. Some clasts show signs of bio-erosion. Hydrozoans, algae, crabs, and skates are present. |
298_36a |
298_36b |
298_36c |
298_36d |
298_36e |
298_36f
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