Brown shrimp (Farfantepenaeus aztecus) density distribution in the Northern Gulf of Mexico: an approach using boosted regression trees

2016 ◽  
Vol 25 (3) ◽  
pp. 337-348 ◽  
Author(s):  
Jose T. Montero ◽  
Tanya A. Chesney ◽  
Jennifer R. Bauer ◽  
John T. Froeschke ◽  
Jim Graham
Keyword(s):  
Gulf Of Mexico ◽  
Density Distribution ◽  
Regression Trees ◽  
Boosted Regression Trees ◽  
Brown Shrimp ◽  
Northern Gulf Of Mexico ◽  
Farfantepenaeus Aztecus

Salinity, Temperature, and Seasonality Effects on the Metabolic Rate of the Brown Shrimp Farfantepenaeus aztecus (Ives, 1891) (Decapoda, Penaeidae) from the Coastal Gulf of Mexico

Crustaceana ◽  
2011 ◽  
Vol 84 (12-13) ◽  
pp. 1547-1560 ◽  
Author(s):  
Samuel Gómez-Aguirre ◽  
Ignacio D. González-Mora ◽  
Luis A. Soto ◽  
José R. Latournerié ◽  
Alma R. Estrada-Ortega
Keyword(s):  
Gulf Of Mexico ◽  
Metabolic Rate ◽  
Time Of Day ◽  
Brown Shrimp ◽  
Partial Replacement ◽  
Routine Metabolic Rate ◽  
Seasonal Temperature ◽  
Farfantepenaeus Aztecus ◽  
Seasonal Temperature Variation ◽  
Temperature Ranges

AbstractThe routine metabolic rate (QO2 in mg O2 g−1 DW h−1) was measured in juveniles of the brown shrimp, Farfantepenaeus aztecus (Ives, 1891) at salinity and temperature ranges prevailing during the cold and warm seasons at the coastal lagoon of Tamiahua, Veracruz, Mexico. A semi-closed respirometer was employed, with eight 4-L experimental chambers, each containing two shrimp of similar size and sex. The shrimp were fasting and in the intermoult stage, and acclimated to the chambers for 12 h prior to determining oxygen consumption. Oxygen measurements were taken every two hours with a partial replacement of water and aeration of one hour between readings. In a 24 h cycle, 6 to 8 measurements were made. Relations between QO2 and DW, for the different salinity and temperature conditions tested, were calculated and adjusted to the equation: QO2 = αDWβ. Two-way ANOVA was applied to analyse the effect of salinity, temperature, time of day, and body weight on F. aztecus QO2. Salinity had no significant (p > 0.05) effect upon the shrimp's routine metabolic rate at intervals of 26 to 34 psu and 22 to 36 psu, typical of the cold and warm seasons, respectively. However, seasonal temperature variation did significantly affect the shrimp's QO2, thus suggesting the existence of a different "pattern of acclimatization" in the energy requirements of the individuals from both seasons. The results indicate that the population of F. aztecus from this area of the Gulf of Mexico may represent a "cline", the physiological response of the components of which differs from that of other brown shrimp populations distributed over a wide geographical range in the western tropical Atlantic.

Spatial distribution of brown shrimp (Farfantepenaeus aztecus) on the northwestern Gulf of Mexico shelf: effects of abundance and hypoxia

2005 ◽  
Vol 62 (6) ◽  
pp. 1295-1308 ◽  
Author(s):  
J Kevin Craig ◽  
Larry B Crowder ◽  
Tyrrell A Henwood
Keyword(s):  
Spatial Distribution ◽  
Gulf Of Mexico ◽  
Dissolved Oxygen ◽  
Density Dependence ◽  
Habitat Loss ◽  
Large Scale ◽  
Brown Shrimp ◽  
Density Dependent ◽  
Louisiana Shelf ◽  
Farfantepenaeus Aztecus

We used fishery-independent hydrographic and bottom trawl surveys on the northwestern Gulf of Mexico shelf from 1983–2000 to test for density dependence and effects of hypoxia (dissolved oxygen ≤ 2.0 mg·L–1) on the spatial distribution of brown shrimp (Farfantepenaeus aztecus). Spatial distribution of shrimp was positively related to abundance on the Texas shelf but negatively related to abundance on the Louisiana shelf. Density dependence was weak, however, and may have been due to factors other than density-dependent habitat selection. Males were distributed over a broader area and further offshore than were females, though differences in spatial distribution between sexes were not large (~10%–15%). Large-scale hypoxia (up to ~20 000 km2) on the Louisiana shelf occurs in regions of typically high shrimp density and results in substantial habitat loss (up to ~25% of the Louisiana shelf), with shifts in distribution and associated high densities both inshore and offshore of the hypoxic region. We discuss these results in terms of the generality of density-dependent spatial distributions in marine populations and potential consequences of habitat loss and associated shifts in distribution due to low dissolved oxygen.

Simulating environmental effects on brown shrimp production in the northern Gulf of Mexico

2016 ◽  
Vol 330 ◽  
pp. 24-40 ◽  
Author(s):  
Jennifer P. Leo ◽  
Thomas J. Minello ◽  
William E. Grant ◽  
Hsiao-Hsuan Wang
Keyword(s):  
Gulf Of Mexico ◽  
Environmental Effects ◽  
Brown Shrimp ◽  
Northern Gulf Of Mexico ◽  
Shrimp Production

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

Potential for Relocation to Alter the Incubation Environment and Productivity of Sea Turtle Nests in the Northern Gulf of Mexico

2018 ◽  
Vol 17 (2) ◽  
pp. 252 ◽  
Author(s):  
Matthew Ware ◽  
Mariana M.P.B. Fuentes
Keyword(s):  
Gulf Of Mexico ◽  
Sea Turtle ◽  
Northern Gulf Of Mexico

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
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