Gulfwatch: Monitoring Spatial and Temporal Patterns of Trace Metal and Organic Contaminants in the Gulf of Maine (1991–1997) with the Blue Mussel, Mytilus edulis L

2001 ◽  
Vol 42 (6) ◽  
pp. 490-504 ◽  
Author(s):  
M.E Chase ◽  
S.H Jones ◽  
P Hennigar ◽  
J Sowles ◽  
G.C.H Harding ◽  
...  
Keyword(s):  
Trace Metal ◽  
Mytilus Edulis ◽  
Organic Contaminants ◽  
Gulf Of Maine ◽  
Blue Mussel ◽  
Temporal Patterns ◽  
Spatial And Temporal Patterns

scholarly journals Across-shelf distribution of blue mussel larvae in the northern Gulf of Maine: consequences for population connectivity and a species range boundary

2015 ◽  
Vol 2 (12) ◽  
pp. 150513 ◽  
Author(s):  
Philip O. Yund ◽  
Charles E. Tilburg ◽  
Michael A. McCartney
Keyword(s):  
Mytilus Edulis ◽  
Gulf Of Maine ◽  
Blue Mussel ◽  
Population Connectivity ◽  
Transport Processes ◽  
Coastal Current ◽  
Blue Mussels ◽  
Larval Distribution ◽  
Connectivity Patterns ◽  
Temperature Signal

Studies of population connectivity have largely focused on along-shelf, as opposed to across-shelf, processes. We hypothesized that a discontinuity in across-shelf mixing caused by the divergence of the Eastern Maine Coastal Current (EMCC) from shore acts as an ecological barrier to the supply of mussel larvae to the coast. Existing data on the relative abundance of two congeneric blue mussels, Mytilus edulis and M. trossulus , were analysed to quantify the association of M. trossulus with the colder temperature signal of the EMCC and generate larval distribution predictions. We then sampled the across-shelf distribution of larvae along two transects during 2011. Larvae were identified using restriction digests of PCR amplicons from the mitochondrial 16S rDNA. Mytilus edulis larvae were consistently abundant on either the inshore and offshore transect ends, but not homogeneously distributed across the shelf, while M. trossulus larvae were less common throughout the study area. The divergence of the EMCC from shore appears to create a break in the connectivity of M. edulis populations by isolating those inshore of the EMCC from upstream larval sources. Across-shelf transport processes can thus produce connectivity patterns that would not be predicted solely on the basis of along-shelf processes.

Mussel-based monitoring of trace metal and organic contaminants along the east coast of China using Perna viridis and Mytilus edulis

2004 ◽  
Vol 127 (2) ◽  
pp. 203-216 ◽  
Author(s):  
C.N. Fung ◽  
J.C.W. Lam ◽  
G.J. Zheng ◽  
D.W. Connell ◽  
I. Monirith ◽  
...  
Keyword(s):  
Trace Metal ◽  
Mytilus Edulis ◽  
Organic Contaminants ◽  
East Coast ◽  
Perna Viridis

scholarly journals Temperature but not ocean acidification affects energy metabolism and enzyme activities in the blue mussel, Mytilus edulis

2020 ◽  
Author(s):  
Omera B. Matoo ◽  
Gisela Lannig ◽  
Christian Bock ◽  
Inna M. Sokolova
Keyword(s):  
Ocean Acidification ◽  
Mytilus Edulis ◽  
Enzyme Activities ◽  
Elevated Temperatures ◽  
Gulf Of Maine ◽  
Blue Mussel ◽  
Hot Spot ◽  
List Type ◽  
Intertidal Zones ◽  
Marine Habitats

SUMMARYIn mosaic marine habitats such as intertidal zones ocean acidification (OA) is exacerbated by high variability of pH, temperature, and biological CO2 production. The non-linear interactions among these drivers can be context-specific and their effect on organisms in these habitats remains largely unknown, warranting further investigation.We were particularly interested in Mytilus edulis (the blue mussel) from intertidal zones of Gulf of Maine (GOM), USA for this study. GOM is a hot spot of global climate change (average SST increasing by > 0.2 °C y-1) with > 60% decline in mussel population over the past 40 years.Here, we utilize bioenergetic underpinnings to identify limits of stress tolerance in M. edulis from GOM exposed to warming and OA. We have measured whole-organism oxygen consumption rates and metabolic biomarkers in mussels exposed to control and elevated temperatures (10 vs. 15 °C) and moderate PCO2 levels (~ 400 vs. 800 μatm).Our study demonstrates that adult M. edulis from GOM are metabolically resilient to the moderate OA scenario but responsive to warming as seen in changes in metabolic rate, energy reserves, metabolite profiles and enzyme activities.Our results are in agreement with recent literature that OA scenarios for the next 100-300 years do not affect this species, possibly as a consequence of maintaining its in vivo acid-base balance.

Large-scale and long-term, spatial and temporal patterns in demography and landings of the American lobster, Homarus americanus, in Maine

2001 ◽  
Vol 52 (8) ◽  
pp. 1303 ◽  
Author(s):  
Robert S. Steneck ◽  
Carl J. Wilson
Keyword(s):  
Gulf Of Maine ◽  
Temporal Patterns ◽  
Homarus Americanus ◽  
American Lobster ◽  
Cold Spot ◽  
Spatial And Temporal Patterns ◽  
Population Densities ◽  
North East ◽  
Catch Rates ◽  
Penobscot Bay

The American lobster, Homarus americanus, is abundant (>1/m2) in spatially complex coastal habitats of the Gulf of Maine. Quadrat surveys (stratified by exposure, depth, and substrate) conducted at fixed locations since 1989 revealed consistently higher lobster population densities west and south of Penobscot Bay in central Maine. High-resolution surveys in 1999 at 70 closely spaced dive sites revealed distinct settlement hot spots and cold spots, stable over several years at least. Densest settlement occurred along a 100-km outer coastal region westward from the mouth of Penobscot Bay. A settlement cold spot about 60-km in diameter was evident in the north-east corner of Penobscot Bay. Abundance of older, adolescent-phase, lobsters (40–90 mm carapace length, CL) corresponded with patterns of settlement. Catch rates per trap haul of prerecruits (< 83 mm CL) and catch rates per area for lobsters fully recruited to the fishery (83 mm CL) correspond with local lobster densities. Until recently, populations increased in three of four regions over the past decade, most strongly in north-eastern Maine. Landings per length of coastline corresponded to spatial and temporal patterns of abundance. Consistent spatial and temporal patterns suggest that population densities can be reliably determined from calibrated fisherydependent data.

Sign in / Sign up

Export Citation Format

Share Document