scholarly journals Pink Shrimp Farfantepenaeus duorarum Spatiotemporal Abundance Trends Along an Urban, Subtropical Shoreline Slated for Restoration

2018 ◽  
Author(s):  
Ian C. Zink ◽  
Joan A. Browder ◽  
Diego Lirman ◽  
Joseph E. Serafy
Keyword(s):  
Water Temperature ◽  
Coastal Wetlands ◽  
Aquatic Vegetation ◽  
Biscayne Bay ◽  
Pink Shrimp ◽  
Everglades Restoration ◽  
Water Control ◽  
Wet Season ◽  
Control Structures ◽  
Farfantepenaeus Duorarum

AbstractThe Biscayne Bay Coastal Wetlands (BBCW) project of the Comprehensive Everglades Restoration Plan (CERP) aims to reduce point-source freshwater discharges and spread freshwater flow along the mainland shoreline of southern Biscayne Bay to approximate conditions in the coastal wetlands and bay that existed prior to construction of canals and water control structures. An increase in pink shrimp (Farfantepenaeus duorarum) density to ≥ 2 individuals m−2 during the wet season (i.e., August-October) along the mainland shoreline was previously proposed as an indicator of BBCW success. This study examined pre-BBCW baseline densities and compared them with the proposed target. Densities were monitored by seasonal (wet, dry) throw-trapping (1 m2 replicated in triplicate) at 47 sites along ~22 km of the southwestern Biscayne Bay coastline over 10 years (2007-2016). Densities varied across years and were most often higher in dry seasons. Quantile regression revealed density limitation by four habitat attributes: water temperature (°C), depth (m), salinity (ppt), and submerged aquatic vegetation (SAV: % cover). Procrustean analyses that tested for congruence between shrimp densities and habitat metrics found that water temperature, water depth, and salinity explained ~ 28%, 28%, and 22% of density variability, respectively. No significant relationship with SAV was observed. Hierarchical clustering was used to identify spatially and temporally similar groupings of pink shrimp densities by sites or season-years. Significant groupings were later investigated with respect to potentially limiting habitat attributes. Six site and four year-season clusters were identified. Although habitat attributes significantly differed among spatial clusters, within-cluster median pink shrimp densities did not correlate with within-cluster minima, maxima, medians, or standard deviations of habitat attributes. Pink shrimp densities corresponded significantly with salinity and appeared limited by it. Salinity is an environmental attribute that will be directly influenced by CERP implementation.

scholarly journals Physiological and biochemical changes of wild and cultivated juvenile pink shrimp Farfantepenaeus duorarum (Crustacea: Penaeidae) during molt cycle

2012 ◽  
Vol 32 (4) ◽  
pp. 597-606 ◽  
Author(s):  
José Luis Bonilla-Gómez ◽  
Gérard Cuzon ◽  
Gilberto Jeronimo ◽  
Xavier Chiappa-Carrara ◽  
Gabriela Gaxiola ◽  
...  
Keyword(s):  
Biochemical Changes ◽  
Pink Shrimp ◽  
Molt Cycle ◽  
Farfantepenaeus Duorarum ◽  
Physiological And Biochemical

Kissimmee River restoration: a case study

2002 ◽  
Vol 45 (11) ◽  
pp. 55-62 ◽  
Author(s):  
P.J. Whalen ◽  
L.A. Toth ◽  
J.W. Koebel ◽  
P.K. Strayer
Keyword(s):  
Ecological Integrity ◽  
Flow Characteristics ◽  
River Channel ◽  
Floodplain Wetlands ◽  
Water Control ◽  
Control Structures ◽  
Meandering River ◽  
Hydrologic Processes ◽  
Kissimmee River

Channelization of the Kissimmee River transformed a 167 km meandering river into a 9 metre deep, 75 metre wide, 90 km drainage canal (C-38) that is compartmentalized with levees and water control structures into a series of five stagnant pools. Channelization dramatically changed water level and flow characteristics, drained 21,000 hectares of floodplain wetlands and severely impacted fish and wildlife populations. A $500 million dollar restoration project will restore the ecological integrity of the river-floodplain system by reconstructing the natural river channel and reestablishing hydrologic processes. Sixty expectations have been established to quantify the ecosystem's recovery. The first phase of reconstruction was completed in February 2001 and included movement of 9.2 million cubic metres of earth to backfill 12 km of C-38, the explosive demolition of one water control structure, construction of two sections (2.4 km) of new river channel, and reestablishment of 24 contiguous km of river. Numerous social, political, and technical challenges have been encountered during the project's evolution. Recommendations are provided for future restoration projects.

scholarly journals Influence of Timber Harvesting Operations and Streamside Management Zone Effectiveness on Sediment Delivery to Headwater Streams in Appalachia

Forests ◽  
2020 ◽  
Vol 11 (6) ◽  
pp. 623
Author(s):  
Daniel Bowker ◽  
Jeffrey Stringer ◽  
Christopher Barton
Keyword(s):  
Timber Harvesting ◽  
Water Control ◽  
Sediment Delivery ◽  
Control Structures ◽  
Management Zone ◽  
Two Factors ◽  
Tree Retention ◽  
Efficiency And Effectiveness ◽  
Sloping Terrain ◽  
Trail Development

Disturbances created by timber harvesting equipment and associated haul roads and skid trails can create overland sediment flows (sediment paths), especially in steeply sloping terrain, leading to stream sedimentation. This study investigated the effect of variables associated with GPS tracked harvest equipment movement, skid trail development and retirement, topography, and streamside management zone (SMZ) width and tree retention on sediment delivery to streams. While the intensity of harvest equipment traffic was not correlated with sediment path development, the presence and location of skid trails were. All of the sediment paths were found to originate at water control structures, influenced by microtopographic features, on the skid trails directly adjacent to SMZs. Mesic slopes were associated with increased sediment path development across all SMZ configurations. Two factors, the accumulation of coarse logging debris in the SMZ and the increased distance of skid trails to streams, were both correlated with decreased sediment path development. The study provides insight into how these variables interact and can be used to develop site-specific guidelines for SMZs in steeply sloping terrain that could improve their efficiency and effectiveness.

Ecology of juvenile and adolescent banana prawns, Penaeus merguiensis, in a mangrove estuary and adjacent off-shore area of the Gulf of Carpentaria. I. Immigration and settlement of postlarvae

1980 ◽  
Vol 31 (5) ◽  
pp. 635 ◽  
Author(s):  
DJ Stapels
Keyword(s):  
Water Temperature ◽  
River Mouth ◽  
Flood Tide ◽  
Trade Wind ◽  
Wet Season ◽  
Annual Cycles ◽  
North West ◽  
Immigration And Settlement ◽  
Physical And Chemical ◽  
The Relationship

The hydrology of the Norman River and adjacent off-shore region in the Gulf of Carpentaria is dominated by the alternation of a summer north-west monsoon and a winter south-east trade wind. The seasonality in both air temperature and rainfall is reflected in marked annual cycles of water temperature, salinity, and dissolved oxygen and nutrient (nitrate and silicate) levels. Near the mouth of the river; water temperature ranged from 15.0�C in June to 32.7�C in February, while salinity ranged from c. 0‰, in December and February to 38.2‰, in September. Postlarval banana prawns, P. merguiensis, were found in the river from November to May. but immigration was essentially restricted to the period immediately preceding the wet season (mid November). Maximum numbers ofjuvenile prawns occurred approximately 2 weeks later. A marked tidal periodicity in the movement of postlarvae was observed; postlarvae were present in the water column at the mouth of the river only during the flood tide with maximum numbers moving into the river at the time of maximum flood tide velocity. Incoming postlarvae settled out in the shallow water along the banks of the river (within 10 m of the shoreline), inland as far as 85 km. A lager catch of smaller prawns 48-72 km up-stream (salinity 10-20‰,) suggested that this area was the main settlement area for postlarvae. The population, however, contracted towards the river mouth during the wet season. concentrating the prawns in an area extending only a few kilometres up-river. Most prawns were caught on the muddy substrate adjacent to the mangrove (Avicennia sp.) fringe which lines the numerous bends in the river. Mechanisms for transporting larvae into the estuary and the relationship between the seasonality of physical and chemical parameters and immigration of postlarvae are discussed.

Juvenile pink shrimp, Farfantepenaeus duorarum (Burkenroad, 1939): length composition in three nursery areas in campeche sound, Gulf of Mexico

Crustaceana ◽  
2004 ◽  
Vol 77 (9) ◽  
pp. 1107-1116
Author(s):  
Abraham Navarrete-Del-Proo ◽  
Mauricio Ramírez-Rodríguez ◽  
Yúlica Santos-Ortega
Keyword(s):  
Gulf Of Mexico ◽  
Pink Shrimp ◽  
Nursery Areas ◽  
Farfantepenaeus Duorarum

scholarly journals Sediment and Vegetation as Reservoirs of Vibrio vulnificus in the Tampa Bay Estuary and Gulf of Mexico

2015 ◽  
Vol 81 (7) ◽  
pp. 2489-2494 ◽  
Author(s):  
Eva Chase ◽  
Suzanne Young ◽  
Valerie J. Harwood
Keyword(s):  
Gulf Of Mexico ◽  
Water Temperature ◽  
Quantitative Pcr ◽  
Significant Interaction ◽  
Aquatic Vegetation ◽  
Vibrio Vulnificus ◽  
Opportunistic Pathogen ◽  
Tampa Bay ◽  
Ambient Conditions ◽  
Content Type

ABSTRACTThe opportunistic pathogenVibrio vulnificusoccurs naturally in estuarine habitats and is readily cultured from water and oysters under warm conditions but infrequently at ambient conditions of <15°C. The presence ofV. vulnificusin other habitats, such as sediments and aquatic vegetation, has been explored much less frequently. This study investigated the ecology ofV. vulnificusin water by culture and quantitative PCR (qPCR) and in sediment, oysters, and aquatic vegetation by culture.V. vulnificussamples were taken from five sites around Tampa Bay, FL. Levels determined by qPCR and culture were significantly correlated (P= 0.0006;r= 0.352); however,V. vulnificuswas detected significantly more frequently by qPCR (85% of all samples) compared to culture (43%). CulturableV. vulnificusbacteria were recovered most frequently from oyster samples (70%), followed by vegetation and sediment (∼50%) and water (43%). Water temperature, which ranged from 18.5 to 33.4°C, was positively correlated withV. vulnificusconcentrations in all matrices but sediments. Salinity, which ranged from 1 to 35 ppt, was negatively correlated withV. vulnificuslevels in water and sediments but not in other matrices. Significant interaction effects between matrix and temperature support the hypothesis that temperature affectsV. vulnificusconcentrations differently in different matrices and that sediment habitats may serve as seasonal reservoirs forV. vulnificus.V. vulnificuslevels in vegetation have not been previously measured and reveal an additional habitat for this autochthonous estuarine bacterium.

Sign in / Sign up

Export Citation Format

Share Document