Citation:

035.034.0222

Name: Conflicting effects of predator cue and ocean acidification on the mussel Mytilus coruscus byssus production
Published: 2015
License: https://creativecommons.org/licenses/by/3.0/
Keywords: Animalia; Behaviour; Benthic animals; Benthos; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Growth/Morphology; Laboratory experiment; Mollusca; Mytilus coruscus; North Pacific; Other; Single species; Temperate; Temperature

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Abstract:

Understanding the impact of ocean acidification and warming on communities and ecosystems is a researcher priority. This can only be achieved through a combination of experimental and field approaches that would allow developing a mechanistic understanding of impacts across level of biological organizations. Surprisingly, most published studies are still focusing on single species responses with little consideration for interspecific interactions. In this study, the impacts of a 3 days exposure to three parameters (temperature, pH, and presence/absence of the predator cue of the crab Charybdis japonica) and their interactions on an ecologically important endpoint were evaluated: the byssus production of the mussel Mytilus coruscus. Tested temperatures (25°C and 30°C) were within the present range of natural variability whereas pH (8.1, 7.7, and 7.4) covered present as well as near-future natural variability. As expected, the presence of the crab cue induced an antipredator response in Mytilus coruscus (significant 10% increase in byssus secretion rate, 22% increase in frequency of shed byssus, and 30% longer byssus). Decreased pH but not temperature had a significant negative impact on the same endpoints (up to a 17% decrease in byssus secretion rate, 40% decrease in frequency of shed byssus, and 10% shorter byssus at pH 7.3 as compared with pH 8.1) with no significant interactions between the three tested parameters. In this study, it has been hypothesized that pH and predator cue have different modes of action and lead to conflicting functional responses (escape response versus stronger attachment). Functional consequences for ecosystem dynamics still need to be investigated.

Keyword(s):

Animalia; Behaviour; Benthic animals; Benthos; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Growth/Morphology; Laboratory experiment; Mollusca; Mytilus coruscus; North Pacific; Other; Single species; Temperate; Temperature

Further details:

Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse (2015): seacarb: seawater carbonate chemistry with R. R package version 3.0.8. https://cran.r-project.org/package=seacarb

Project(s):

Ocean Acidification International Coordination Centre (OA-ICC)

Comment:

In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2015) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation is 2016-05-06.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Type	Type		Wang, Youji		study
2	Species	Species		Wang, Youji
3	Registration number of species	Reg spec no		Wang, Youji
4	Uniform resource locator/link to reference	URL ref		Wang, Youji		WoRMS Aphia ID
5	Treatment	Treat		Wang, Youji
6	Temperature, water	Temp	°C	Wang, Youji
7	Treatment	Treat		Wang, Youji
8	Number	n	#	Wang, Youji		the number of the byssus thread
9	Time in hours	Time	h	Wang, Youji
10	Frequency	Frequency	#	Wang, Youji		stalk shedding
11	Length	l	mm	Wang, Youji		byssus thread
12	Diameter	Ø	mm	Wang, Youji		byssus thread
13	Replicate	Repl		Wang, Youji
14	Secretion rate, per individual	Secr rate/ind	#/#/day	Wang, Youji		attached byssus
15	Salinity	Sal		Wang, Youji
16	Salinity, standard error	Sal std e	±	Wang, Youji
17	pH	pH		Wang, Youji	Potentiometric	NBS scale
18	pH, standard error	pH std e	±	Wang, Youji	Potentiometric	NBS scale
19	Temperature, water	Temp	°C	Wang, Youji
20	Temperature, water, standard error	T std e	±	Wang, Youji
21	Alkalinity, total	AT	µmol/kg	Wang, Youji	Potentiometric titration
22	Alkalinity, total, standard error	AT std e	±	Wang, Youji	Potentiometric titration
23	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Wang, Youji	Calculated using CO2SYS
24	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error	pCO2water_SST_wet std e	±	Wang, Youji	Calculated using CO2SYS
25	Calcite saturation state	Omega Cal		Wang, Youji	Calculated using CO2SYS
26	Calcite saturation state, standard error	Omega Cal std e	±	Wang, Youji	Calculated using CO2SYS
27	Aragonite saturation state	Omega Arg		Wang, Youji	Calculated using CO2SYS
28	Aragonite saturation state, standard error	Omega Arg std e	±	Wang, Youji	Calculated using CO2SYS
29	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
30	pH	pH		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	total scale
31	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
32	Fugacity of carbon dioxide (water) at sea surface temperature (wet air)	fCO2water_SST_wet	µatm	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
33	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
34	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
35	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
36	Carbon, inorganic, dissolved	DIC	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
37	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
38	Calcite saturation state	Omega Cal		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

94968 data points

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