Species Abundance, Spatial and Vertical Distributions, and Eye-Size Trends of Large Heteropods (Pterotracheidae and Carinariidae) in the Northern Gulf of Mexico

2021 ◽  
Vol 38 (2) ◽  
Author(s):  
K. A. Clark ◽  
M. Vecchione ◽  
B. A. Seibel ◽  
H. L. Judkins
Keyword(s):  
Gulf Of Mexico ◽  
Species Abundance ◽  
Northern Gulf Of Mexico ◽  
Eye Size ◽  
Vertical Distributions

Ecology and behaviour of holoplanktonic scyphomedusae and their interactions with larval and juvenile fishes in the northern Gulf of Mexico

2017 ◽  
Vol 75 (2) ◽  
pp. 751-763 ◽  
Author(s):  
Adam T Greer ◽  
Luciano M Chiaverano ◽  
Jessica Y Luo ◽  
Robert K Cowen ◽  
William M Graham
Keyword(s):  
Gulf Of Mexico ◽  
Imaging System ◽  
Larval Fish ◽  
Diel Cycle ◽  
Horizontal Distance ◽  
Fine Scale ◽  
Northern Gulf Of Mexico ◽  
Low Salinity ◽  
Vertical Distributions ◽  
Globally Distributed

Abstract Pelagia noctiluca is a venomous, globally distributed holoplanktonic scyphomedusa that periodically forms aggregations in coastal environments, yet little is known about its ecology and behaviour in the northern Gulf of Mexico (nGOM). Using a high resolution plankton imaging system, we describe the patch characteristics of Pelagia medusae in relation to fine-scale biological and physical variables during two summers at shallow (∼25 m, 2016) and deeper (∼45 m, 2011) sampling areas on the nGOM shelf. At the deeper site during the day, average Pelagia medusae concentrations just underneath a surface plume of fresher water (10–25 m) ranged from 0.18 to 0.91 ind. m−3, with a Lloyd’s patchiness index of 13.87, indicating strong aggregation tendencies (peak fine-scale concentration reached 27 ind. m−3). These patches were often associated with horizontal gradients in salinity, and concentrations of several zooplankton taxa (e.g. chaetognaths, hydromedusae, siphonophores, and ctenophores) were significantly negatively correlated with Pelagia medusae abundance (p < 0.0001, Spearman correlations). Although larval fish abundance was not correlated with Pelagia medusae on the 1 m3 scale (19.25 m horizontal distance), larval and juvenile fishes between 0.6 and 2.0 cm aggregated underneath the bell of some Pelagia medusae during the daytime only, even within hypoxic waters. Vertical distributions collected on a diel cycle demonstrated that Pelagia medusae perform a reverse diel vertical migration constrained by low salinity near the surface. These data suggest that salinity changes drive the distribution of Pelagia medusae vertically and horizontally, and when sufficient concentrations are present, medusae are capable of exerting a top-down effect on the abundances of their zooplankton prey. For zooplankton with high visual acuity, such as larval and juvenile fishes, the relationship with Pelagia medusae may change on a diel cycle and depend on the sensory ability of potential prey.

Effects of hypoxia on habitat quality of pelagic planktivorous fishes in the northern Gulf of Mexico

2014 ◽  
Vol 505 ◽  
pp. 209-226 ◽  
Author(s):  
H Zhang ◽  
DM Mason ◽  
CA Stow ◽  
AT Adamack ◽  
SB Brandt ◽  
...  
Keyword(s):  
Gulf Of Mexico ◽  
Habitat Quality ◽  
Northern Gulf Of Mexico

Exploration of real-time satellite measurements to advance hurricane intensity prediction in the northern Gulf of Mexico

OCEANS 2009 ◽  
2009 ◽  
Author(s):  
Nan Walker ◽  
Robert Leben ◽  
Steven Anderson ◽  
Alaric Haag ◽  
Chet Pilley ◽  
...  
Keyword(s):  
Gulf Of Mexico ◽  
Real Time ◽  
Satellite Measurements ◽  
Hurricane Intensity ◽  
Northern Gulf Of Mexico ◽  
Intensity Prediction

EAARL Coastal Topography - Northern Gulf of Mexico, 2007: Bare Earth

Data Series ◽  
10.3133/ds400 ◽  
2009 ◽  
Author(s):  
Kathryn E.L. Smith ◽  
Amar Nayegandhi ◽  
C. Wayne Wright ◽  
Jamie M. Bonisteel ◽  
John C. Brock
Keyword(s):  
Gulf Of Mexico ◽  
Northern Gulf Of Mexico ◽  
Coastal Topography

EAARL coastal topography - Northern Gulf of Mexico

Data Series ◽  
10.3133/ds384 ◽  
2008 ◽  
Author(s):  
Amar Nayegandhi ◽  
John C. Brock ◽  
Abby Sallenger ◽  
C. Wayne Wright ◽  
Laurinda J. Travers ◽  
...  
Keyword(s):  
Gulf Of Mexico ◽  
Northern Gulf Of Mexico ◽  
Coastal Topography

Sediment Distribution on the Mississippi-Alabama Shelf, Northern Gulf of Mexico

2010 ◽  
Author(s):  
James G. Flocks ◽  
Jordan Sanford ◽  
Jackie L. Smith
Keyword(s):  
Gulf Of Mexico ◽  
Sediment Distribution ◽  
Northern Gulf Of Mexico

Petroleum hydrocarbons in sediment from the northern Gulf of Mexico shoreline, Texas to Florida

2011 ◽  
Author(s):  
Robert J. Rosenbauer ◽  
Pamela L. Campbell ◽  
Angela Lam ◽  
T.D. Lorenson ◽  
Frances D. Hostettler ◽  
...  
Keyword(s):  
Gulf Of Mexico ◽  
Petroleum Hydrocarbons ◽  
Northern Gulf Of Mexico
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