scholarly journals Relative influence of habitat fragmentation and inundation on brown shrimp Farfantepenaeus aztecus production in northern Gulf of Mexico salt marshes

2008 ◽  
Vol 359 ◽  
pp. 185-202 ◽  
Author(s):  
BM Roth ◽  
KA Rose ◽  
LP Rozas ◽  
TJ Minello
Keyword(s):  
Habitat Fragmentation ◽  
Gulf Of Mexico ◽  
Salt Marshes ◽  
Relative Influence ◽  
Brown Shrimp ◽  
Northern Gulf Of Mexico ◽  
Farfantepenaeus Aztecus

Influence of Grasshopper Herbivory on Nitrogen Cycling in Northern Gulf of Mexico Black Needlerush Salt Marshes

2017 ◽  
Vol 41 (3) ◽  
pp. 765-771 ◽  
Author(s):  
Diana I. Montemayor ◽  
Eric L. Sparks ◽  
Oscar O. Iribarne ◽  
Just Cebrian
Keyword(s):  
Gulf Of Mexico ◽  
Nitrogen Cycling ◽  
Salt Marshes ◽  
Northern Gulf Of Mexico

scholarly journals Estimating and Applying Fish and Invertebrate Density and Production Enhancement from Seagrass, Salt Marsh Edge, and Oyster Reef Nursery Habitats in the Gulf of Mexico

2021 ◽  
Author(s):  
Philine S. E. zu Ermgassen ◽  
Bryan DeAngelis ◽  
Jonathan R. Gair ◽  
Sophus zu Ermgassen ◽  
Ronald Baker ◽  
...  
Keyword(s):  
Salt Marsh ◽  
Gulf Of Mexico ◽  
Salt Marshes ◽  
Fish Habitat ◽  
Juvenile Fish ◽  
Oyster Reefs ◽  
Coastal Habitats ◽  
Marsh Edge ◽  
Northern Gulf Of Mexico ◽  
Nursery Habitats

AbstractSeagrasses, oyster reefs, and salt marshes are critical coastal habitats that support high densities of juvenile fish and invertebrates. Yet which species are enhanced through these nursery habitats, and to what degree, remains largely unquantified. Densities of young-of-year fish and invertebrates in seagrasses, oyster reefs, and salt marsh edges as well as in paired adjacent unstructured habitats of the northern Gulf of Mexico were compiled. Species consistently found at higher densities in the structured habitats were identified, and species-specific growth and mortality models were applied to derive production enhancement estimates arising from this enhanced density. Enhancement levels for fish and invertebrate production were similar for seagrass (1370 [SD 317] g m–2 y–1for 25 enhanced species) and salt marsh edge habitats (1222 [SD 190] g m–2 y–1, 25 spp.), whereas oyster reefs produced ~650 [SD 114] g m–2 y–1(20 spp). This difference was partly due to lower densities of juvenile blue crab (Callinectes sapidus) on oyster reefs, although only oyster reefs enhanced commercially valuable stone crabs (Menippe spp.). The production estimates were applied to Galveston Bay, Texas, and Pensacola Bay, Florida, for species known to recruit consistently in those embayments. These case studies illustrated variability in production enhancement by coastal habitats within the northern Gulf of Mexico. Quantitative estimates of production enhancement within specific embayments can be used to quantify the role of essential fish habitat, inform management decisions, and communicate the value of habitat protection and restoration.

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.

Sign in / Sign up

Export Citation Format

Share Document