Direct shell acquisition by hermit crabs from gastropods

1974 ◽  
Vol 30 (2) ◽  
pp. 206-208 ◽  
Author(s):  
R. B. McLean
Keyword(s):  
Hermit Crabs ◽  
Shell Acquisition

scholarly journals Social context of shell acquisition in Coenobita clypeatus hermit crabs

2010 ◽  
Vol 21 (3) ◽  
pp. 639-646 ◽  
Author(s):  
Randi D. Rotjan ◽  
Jeffrey R. Chabot ◽  
Sara M. Lewis
Keyword(s):  
Social Context ◽  
Hermit Crabs ◽  
Shell Acquisition

Rate of New Shell Acquisition by Hermit Crabs in a Salt Marsh Habitat

1982 ◽  
Vol 2 (4) ◽  
pp. 588-592 ◽  
Author(s):  
T. Payson Wilber ◽  
William Herrnkind
Keyword(s):  
Salt Marsh ◽  
Hermit Crabs ◽  
Marsh Habitat ◽  
Salt Marsh Habitat ◽  
Shell Acquisition

scholarly journals Shell acquisition by hermit crabs: which tactic is more efficient?

2006 ◽  
Vol 60 (4) ◽  
pp. 492-500 ◽  
Author(s):  
Elena Tricarico ◽  
Francesca Gherardi
Keyword(s):  
Hermit Crabs ◽  
Shell Acquisition

The shell-acquisition behaviour of the bivalve-using hermit crab Porcellanopagurus nihonkaiensis Takeda, 1985 (Decapoda, Anomura, Paguroidea)

Crustaceana ◽  
2018 ◽  
Vol 91 (4) ◽  
pp. 509-515
Author(s):  
Akihiro Yoshikawa ◽  
Morihiko Tomatsuri ◽  
Akira Asakura
Keyword(s):  
Hydrostatic Pressure ◽  
Hermit Crab ◽  
Hermit Crabs ◽  
Shizuoka Prefecture ◽  
Almost All ◽  
Shell Acquisition

Almost all species of hermit crabs inhabit dead gastropod shells; however, species of some genera have evolved to inhabit bivalve or patelliform shells. It has been assumed that these species carry their shells using uropodal rasps and the hooked dactyls of their fourth pereopods, although no detailed description of the shell acquisition behaviour of those species has previously been documented. We have therefore observed the shell acquisition behaviour of Porcellanopagurus nihonkaiensis Takeda, 1985, which was collected by dredge at Shimoda, Shizuoka Prefecture, Japan. Our observation suggests that the shell is fixed in place by only the uropodal rasps in combination with hydrostatic pressure in the telson.

Hermit Crabs: Neglected Factors in Taphonomy and Paleoecology

Palaios ◽  
1987 ◽  
Vol 2 (4) ◽  
pp. 313 ◽  
Author(s):  
Robert W. Frey
Keyword(s):  
Hermit Crabs

Molecular and Geologic Evidence of Shared History between Hermit Crabs and the Symbiotic Genus Hydractinia

Evolution ◽  
1991 ◽  
Vol 45 (6) ◽  
pp. 1301 ◽  
Author(s):  
C. W. Cunningham ◽  
L. W. Buss ◽  
Cort Anderson
Keyword(s):  
Hermit Crabs ◽  
Shared History

scholarly journals Ocean Acidification Amplifies the Olfactory Response to 2-Phenylethylamine: Altered Cue Reception as a Mechanistic Pathway?

2021 ◽  
Author(s):  
Paula Schirrmacher ◽  
Christina C. Roggatz ◽  
David M. Benoit ◽  
Jörg D. Hardege
Keyword(s):  
Climate Change ◽  
Ocean Acidification ◽  
Hermit Crabs ◽  
Ecological Interactions ◽  
Ecological Processes ◽  
Mechanistic Pathway ◽  
Sea Lampreys ◽  
Pagurus Bernhardus ◽  
Decreasing Ph ◽  
The Impact

AbstractWith carbon dioxide (CO2) levels rising dramatically, climate change threatens marine environments. Due to increasing CO2 concentrations in the ocean, pH levels are expected to drop by 0.4 units by the end of the century. There is an urgent need to understand the impact of ocean acidification on chemical-ecological processes. To date, the extent and mechanisms by which the decreasing ocean pH influences chemical communication are unclear. Combining behaviour assays with computational chemistry, we explore the function of the predator related cue 2-phenylethylamine (PEA) for hermit crabs (Pagurus bernhardus) in current and end-of-the-century oceanic pH. Living in intertidal environments, hermit crabs face large pH fluctuations in their current habitat in addition to climate-change related ocean acidification. We demonstrate that the dietary predator cue PEA for mammals and sea lampreys is an attractant for hermit crabs, with the potency of the cue increasing with decreasing pH levels. In order to explain this increased potency, we assess changes to PEA’s conformational and charge-related properties as one potential mechanistic pathway. Using quantum chemical calculations validated by NMR spectroscopy, we characterise the different protonation states of PEA in water. We show how protonation of PEA could affect receptor-ligand binding, using a possible model receptor for PEA (human TAAR1). Investigating potential mechanisms of pH-dependent effects on olfactory perception of PEA and the respective behavioural response, our study advances the understanding of how ocean acidification interferes with the sense of smell and thereby might impact essential ecological interactions in marine ecosystems.

scholarly journals Feeding hermit crabs to shrimp broodstock increases their risk of WSSV infection

2012 ◽  
Vol 98 (3) ◽  
pp. 193-199 ◽  
Author(s):  
YS Chang ◽  
WJ Liu ◽  
TC Chen ◽  
TY Chan ◽  
KF Liu ◽  
...  
Keyword(s):  
Hermit Crabs

Variable transfer of detoxified metals from snails to hermit crabs in marine food chains

1994 ◽  
Vol 120 (3) ◽  
pp. 369-377 ◽  
Author(s):  
J. A. Nott ◽  
A. Nicolaidou
Keyword(s):  
Hermit Crabs ◽  
Food Chains ◽  
Marine Food
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