scholarly journals Community structure of macroinvertebrates inhabiting the rocky subtidal zone in the Gulf of Maine: seasonal and bathymetric distribution

1989 ◽  
Vol 57 ◽  
pp. 147-161 ◽  
Author(s):  
FP Ojeda ◽  
JH Dearborn
Keyword(s):  
Community Structure ◽  
Gulf Of Maine ◽  
Subtidal Zone ◽  
Bathymetric Distribution ◽  
Rocky Subtidal

scholarly journals Shift in polar benthic community structure in a fast retreating glacial area of Marian Cove, West Antarctica

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hanna Bae ◽  
In-Young Ahn ◽  
Jinsoon Park ◽  
Sung Joon Song ◽  
Junsung Noh ◽  
...  
Keyword(s):  
Community Structure ◽  
Benthic Community ◽  
Adaptive Strategy ◽  
Ecological Impacts ◽  
Glacier Retreat ◽  
Benthic Diatoms ◽  
Subtidal Zone ◽  
Benthic Community Structure ◽  
Community Shift ◽  
Global Issue

AbstractGlacier retreat is a major long-standing global issue; however, the ecological impacts of such retreats on marine organisms remain unanswered. Here, we examined changes to the polar benthic community structure of “diatoms” under current global warming in a recently retreated glacial area of Marian Cove, Antarctica. The environments and spatiotemporal assemblages of benthic diatoms surveyed in 2018–2019 significantly varied between the intertidal (tidal height of 2.5 m) and subtidal zone (10 and 30 m). A distinct floral distribution along the cove (~ 4.5 km) was characterized by the adaptive strategy of species present, with chain-forming species predominating near the glacier. The predominant chain-forming diatoms, such as Fragilaria striatula and Paralia sp., are widely distributed in the innermost cove over years, indicating sensitive responses of benthic species to the fast-evolving polar environment. The site-specific and substrate-dependent distributions of certain indicator species (e.g., F. striatula, Navicula glaciei, Cocconeis cf. pinnata) generally reflected such shifts in the benthic community. Our review revealed that the inner glacier region reflected trophic association, featured with higher diversity, abundance, and biomass of benthic diatoms and macrofauna. Overall, the polar benthic community shift observed along the cove generally represented changing environmental conditions, (in)directly linked to ice-melting due to the recent glacier retreat.

The Recent Terebratulina Community in the rocky subtidal zone of the Bay of Fundy, Canada

Lethaia ◽  
1976 ◽  
Vol 9 (1) ◽  
pp. 1-18 ◽  
Author(s):  
JAMES P. A. NOBLE ◽  
ALAN LOGAN ◽  
G. ROBERT WEBB
Keyword(s):  
Bay Of Fundy ◽  
Subtidal Zone ◽  
Rocky Subtidal

Spring Macroalgal Flora and Community Structure in Subtidal Zone around Coasts of Jeju Island, Korea

2015 ◽  
Vol 9 (2) ◽  
pp. 92-104 ◽  
Author(s):  
Bo Yeon Kim ◽  
◽  
Jun-Cheol Ko ◽  
Jong Bin Kim ◽  
Han Gil Choi
Keyword(s):  
Community Structure ◽  
Jeju Island ◽  
Subtidal Zone

Quantitative Biological Assessment of the Benthic Fauna in Deep Basins of the Gulf of Maine

1975 ◽  
Vol 32 (10) ◽  
pp. 1805-1812 ◽  
Author(s):  
Gilbert T. Rowe ◽  
Pamela T. Polloni ◽  
Richard L. Haedrich
Keyword(s):  
Organic Matter ◽  
Community Structure ◽  
Gulf Of Maine ◽  
Benthic Fauna ◽  
Core Sample ◽  
Biological Assessment ◽  
Fine Silt ◽  
Sediment Organic Carbon ◽  
Diversity Estimates ◽  
High Sediment

The abundance, biomass, and diversity of the macro- and mega-fauna in the deep basins of the Gulf of Maine were estimated from 41 quantitative infaunal samples and 19 visual transects made with the Deep Submergence Research Vessel (DSRV) Alvin. The homogeneous fine silt and clay (66% clay) sediments supported an infaunal abundance [Formula: see text] and wet preserved biomass [Formula: see text] which were relatively low for a continental margin (270–297 m deep) with high sediment organic carbon (1.9%). Diversity estimates (H[s]) from Alvin box core samples were lower than Alvin box core sample values from the continental slope, suggesting that the seasonally stable Gulf of Maine basins, because of their short geologic age, do not yet contain an equilibrium assemblage. An additional possibility is that seasonal variations in the production of organic matter, being more pronounced in the Gulf of Maine than offshore in deep water, affect community structure on the bottom.

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