Environmental Engineering Reference
In-Depth Information
FIGURE 5
Crustacean burrows and their tracemakers (inset photos). (A) Unlined
Skolithos
(Sk) in
sand at the intertidal/supratidal transition. Burrows are made by the amphipod,
Talorchestia longi-
cornis
. (B) Large-diameter
Thalassinoides
(Th) produced by the lobster
Homarus americanus
in
firm mud in 10 m water depth (photo courtesy of Tyler Hauck). (C)
Diplocraterion
(Di) produced
by the amphipod
Corophium volutator
in firm mud. (D)
Corophium
sp. generated
Arenicolites
(Ar)
in fine-grained sand. Scale bar is in centimeters. (E) Smooth-walled
Thalassinoides
made by
the shrimp
Upogebia pugentensis
in sand. (F) Smooth-walled
Thalassinoides
made by the shrimp
Neotrypaea californiensis
in firm mud. Scale bar is in centimeters. (G)
Psilonichnus
(Ps, white
arrows) produced by the crab
Hemigrapsus
sp. in sand.
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