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  • Oceanography  (93)
  • Engineering  (21)
  • Conservation  (18)
  • Physics
  • conferences
  • St. Petersburg, FL  (67)
  • Secretariat, Southeast Asian Fisheries Development Center  (27)
  • University of Florida, Coastal and Oceanographic Engineering Department
  • 2020-2022  (115)
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  • 1
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    Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/26076 | 704 | 2018-11-06 20:06:47 | 26076 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-24
    Description: Roads fragment wildlife habitat, and the vehicles that travel them are often a source of wildlife mortality. Often, wildlife populations can absorb this unnatural mortality without suffering declines, but for endangered large mammals like the Florida panther, if their remaining habitat is fragmented or their mortality is increased in other ways (e.g., roadkill), their existence may be imperiled. A landscape approach is critical to identifying key road segments that are important for maintaining unimpeded panther movement. Least-cost pathway (LCP) modeling considers elements within the landscape that facilitate movement and minimize impediments when an animal travels from one area to another. Our analyses identified the most likely LCPs for panthers to use in moving between six major use areas in southwest Florida, and we identified 16 key road segments where these LCPs intersected improved roadways. These intersections correlated well with documented panther roadkill locations and overlapped fixed-kernel panther home ranges. One of our LCPs coursed through an area dominated by citrus groves; this area is strategically located between large blocks of panther habitat, which explains the cluster of panther roadkills at this location. Our analyses supported the habitat stewardship areas of the 2002 Collier County Rural Lands Stewardship Plan; however, we recommend additional protection for the pathway north of County Road 858 and west of State Road 29. We believe that by using a landscape approach, panthers and their habitat can be protected as current road networks are improved, new roads are constructed, and existing panther habitat is altered or disturbed. We did not attempt to map all possible panther–road conflict areas; however, this technique could be applied to other areas, such as possible panther reintroduction areas, as needs arise.
    Keywords: Conservation ; Florida panther ; Puma concolor coryi ; conservation ; endangered species ; Florida ; Everglades National Park
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 44
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  • 2
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26271 | 2002 | 2019-02-21 02:15:25 | 26271 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: In this paper the relative concentrations and vertical distributions of primary production were investigated off Western Philippines of the South China Sea during tradewinds from April 15 to May 11, 1998. Primary productivity measurements were conducted using conventional "light-and-dark bottle" oxygen method. The net primary production estimates at ten (10) different stations established between 19° 59.2'N, 119° 58.7'E and 11° 13.5'N, 118° 03.1'E ranged from 0.10 ~ 1.53 g C m-2 d1. The result suggests that the present net production estimates in the area is remarkably higher than the estimates from other parts of the South China Sea (viz., northern coastal waters off Taiwan and southwestern parts of the SCS which included marine waters of Thailand, Indonesia and Malaysia). The highest primary production occurred at the upper 60-m well-mixed layer of station 1 in the northwestern most part of the area. Results have shown that some other hydrographic and chemical parameters (viz., temperature, salinity, light and fluorescence) greatly complicate and may not coherent with the analyses of relative distribution and abundance of primary production in the area.
    Keywords: Fisheries ; Oceanography ; Phytoplankton ; Primary production ; South China Sea ; Philippines
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 235-250
    Format: 16
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  • 3
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26379 | 23782 | 2019-04-05 08:42:20 | 26379 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The benthic invertebrate (zoobenthos) fauna in Vietnamese seawaters was surveyed in April - May, 1999. Zoobenthos specimen were sampled by Smith-McIntyre grab on 38 stations and 180 species were recorded and composed of 5 major groups: Polychaeta, Crustacea, Mollusca, Echinodermata and others. The total of density and biomass zoobenthos in Vietnamese seawaters was 156.7 ind/m2 and 5943.0 mg/m2 respectively. Polychaeta and Mollusca were groups with the highest abundance in every cases considered. The remaining groups of zoobenthos such as Crustacea and Echinodermata which were lower in abundance but higher in biomass. There was a remarkable variation of zoobenthos both in species composition and density with the depth, substrate and spatial distribution. Abundance was higher in some subjects considered such as: in depth of 0 - 60m or in types of sandy components or in the Tonkin gulf and the Southeast regions. All diversity indices shown that water quantity in Vietnamese sea offshore in survey time was just satisfactory and good.
    Keywords: Fisheries ; Oceanography ; Geographical distribution ; Community composition ; Species diversity ; Abundance ; Check lists ; Zoobenthos ; Viet Nam
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
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    Format: 55-76
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  • 4
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26390 | 23782 | 2019-04-08 06:24:56 | 26390 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The distribution of nutrients (Silica, Phosphate, Ammonium, Nitrate, Nitrite and Sulfate) in the Vietnamese waters was studied in the SEAFDEC Interdepartmental Collaborative Research Survey: Area IV. The samples were collected by M.V. SEAFDEC on the 30 April to 29 May 1999 (post monsoon period). Fifty-eight stations (2m from surface and 100 m from surface) were established in this study. The average of Silica at the surface layer is 25.96μM and at the bottom layer is 30.69μM. The average of Phosphate at the surface layer is 0.890 μM and at the bottom layer is 1.353μM. The average of Ammonium at the surface layer is 2.805μM and at the bottom layer is 2.538μM. The average of Nitrate at the surface layer is 5.593μM and at the bottom layer is 6.810μM. The average of Nitrite at the surface layer is 0.169μM and at the bottom layer is 0.197µM. The average of Sulfate at the surface layer is 26.903 μM and at the bottom layer is 27.831μM. The results indicated that the concentrations of Silica, Phosphate, Nitrate, Nitrite and Sulfate in deep water were higher in the surface water, but the Ammonium is inverse.
    Keywords: Oceanography ; Research ; Phosphates ; Silica ; Nitrites ; Nitrates ; Marine environment ; Ammonia ; Nutrients (mineral) ; Sulphates ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 310-345
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  • 5
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26386 | 23782 | 2019-04-05 08:35:51 | 26386 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Distribution of phytoplankton pigments was investigated in the relation to Chlorophyll a (Chl-a) and light intensity in Vietnamese waters located at longitude 102E - 112W, latitute 23N - 7N. Over 200 samples collected at 58 stations were analyzed for pigments (Chlorophyll a, b, c and carotenoids) and degradation products (Phaeophytill). Chlorophyll a was measured by fluorescence. Results show that average values in the seawater were 0.18 ± 0.04 mg.m-3 for Chl-a; 0.05 ± 0.01 mg.m-3 for Chl-b; 0.062 mg.m-3 for Phaeophytill. Higher value of Chl-a occurred at the thermocline but maxima were found at 75 or 50m depths. Average value of Carotenoids concentration was very low about 0.052 ± 0.12 mg.m-3. The report used a model for the relationship between Chlorophyll a content and light intensity to estimate the primary production. Average value of primary production was about 9.04 mgC.m3.day-1 at the surface and 2.63 mgC.m3.day-1 at the bottom. The relationship between Chlorophyll and some environmental parameters such as temperature, salinity was examined. The effects of thermocline and halocline to the primary production were analyzed.
    Keywords: Biology ; Oceanography ; Chlorophylls ; Photosynthetic pigments ; Phytoplankton ; Primary production ; Carotenoids ; Vertical profiles ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
    Type: book_section
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    Format: 233-250
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  • 6
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26393 | 23782 | 2019-04-08 06:53:08 | 26393 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The water circulation in area IV was calculated by 2 methods. The circulation for the area where water depth exceeded 600m was calculated by the geostrophic balance method. In shallow water area effect of wind absolutely surpasses geostrophic balance, so wind induced drift current is greater than geostrophic current many times. So, for the whole area (shallow deep) the drift current was calculated by two-dimensional nonlinear shallow water equation based on typical monsoon fields. The results of 2 methods showed common picture of the circulation with divergence and convergence changing by season.
    Keywords: Oceanography ; Ocean currents ; Scientific research ; Geostrophic flow ; Geostrophic method ; Water circulation ; Wind-driven currents ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 365-373
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  • 7
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26380 | 23782 | 2019-04-05 08:41:33 | 26380 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The samples of 58 stations in Vietnamese Waters were collected by M.V. SEAFDEC on 21 April - 5 June 1999. Thirty-seven groups of zooplankton were found in this study. Copepoda was the most abundance followed by Chaetognatha and Ostracoda. Biomass varied from 0.21-7.29 ml/m3 (average 1.03±1.22 ml/m3). Station 56 has the highest biomass. Abundance varied from 99-2,365 ind/m3 (average 580±527 ind/m3). Station 58 has the highest abundance due to high number of Chaetognatha, polychaete, Lucifer spp., Thecosomes and Echinodermata larvae. Whereas Station 19 has the lowest abundance. Cephalopod paralarvae were concentrated. They were classsified into 15 genera belonging to 11 families: Sepia sp., Inioteuthis sp, Loligo spp., Enoploteuthis sp., Abralia sp., Watasenia sp., Onychoteuthis sp., Ctenopteryx sicula, Nototodarus sp., Sthenoteuthis oualaniensis, Thysanoteuthis rhombus , Liocranchia sp., Teuthowenia sp., Octopus defilippi, Octopus Type A, Octopus Type B, Octopus Type C and Tremoctopus sp. Sthenoteuthis oualaniensis found to be most abundance followed by Octopus Type B and Enoploteuthis. Sthenoteuthis oualaniensis found mostly in the middle part of Vietnamese waters especially in the oceanic zone.
    Keywords: Fisheries ; Oceanography ; Geographical distribution ; Community composition ; Abundance ; Zooplankton ; Check lists ; Copepoda ; Ostracoda ; Chaetognatha ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
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    Format: 77-93
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  • 8
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26381 | 23782 | 2019-04-05 08:37:05 | 26381 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: This report is based on the data of fish eggs and larvae samples which were collected at the 58 stations of the Vietnamese waters, it covered from latitude 7° - 21° N and longitude 103° - 112° E. The cruise was carried out from April 30 to May 29, 1999 by M/V SEAFDEC. The Standard larvae net and Bongo net were used for the surface and oblique sampling respectively and 14,507 fish eggs and 18,919 fish larvae were caught. The specimens have been identified, which comprise of 78 families, 94 genera, 94 species of fish eggs and larvae observed from this cruise. The most abundant fish eggs and larvae during the survey were Engraulidae, accounted for 8.5% total of eggs and 23.8% total of larvae. The species composition was observed to be very abundant. In each station, at least 6 families and the highest 30 families were collected during the survey. The abundance of ichthyoplankton is rather relatively high, the distribution occurred mainly in the areas of along the coastal, near estuaries and around the islands. The abundance of fish eggs concentrated higher than fish larvae. The density of distribution of fish eggs and larvae in the North Sea waters concentrated the most abundant of all and of the Central sea waters was the least abundant of all. Some of families of which fish eggs and larvae have dominated were presented.
    Keywords: Biology ; Fisheries ; Oceanography ; Dominant species ; Geographical distribution ; Ichthyoplankton ; Fish eggs ; Abundance ; Check lists ; Ichthyoplankton surveys ; Fish larvae ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 94-145
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  • 9
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26388 | 23782 | 2019-04-08 06:15:45 | 26388 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Samples of phytoplankton were collected from 58 stations in the Vietnamese waters from 30 April to 21 - May, 1999 on boat M. V. SEAFDEC. The total of 508 taxa, which consisted of 1 genus, 3 species of Cyanophyta; 1 genus, 2 species of Silicoflagellata; 63 genera, 283 species of Bacillariophyta and 34 genera, 220 species of Pyrrophyta were identified. In the Cyanophyta, Oscillatoria (mainly O. erythraea) was the frequently dominant species. Bacteriastrum elongatum, Bellerochea malleus, Chaetoceros cintus, Thalassionema nitzschioides and Thalassiothrix frauenfeldii were dominant species only in some stations of the coastal region of area A, B and D. Average cell numbers of phytoplankton in the different parts of Vietnamese sea waters were in the range 5.984-53.570 cells/l. The indices of species diversity were in the ranges: - R: from 0.70 to 2.5- H´: from 2.49 to 2.32- H´max: from 6.67 to 6.80- J: from 0.37 to 0.48- Dv: from 1.21 to 2.07
    Keywords: Oceanography ; Dominant species ; Geographical distribution ; Community composition ; Abundance ; Species diversity ; Check lists ; Phytoplankton ; Bacillariophyta ; Thalassionema nitzschioides ; Oscillatoria erythraea ; Chaetoceros ; Cyanophyta ; Bellerochea ; Bacteriastrum elongatum ; Dinophyta ; Thalassiothrix frauenfeldii ; Silicoflagellata ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
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    Format: 265-291
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  • 10
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26391 | 23782 | 2019-04-08 06:29:58 | 26391 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: During April and May 1999, An MV SEAFDEC cruise was carried out in Vietnamese waters for the SEAFDEC Interdepartmental Collaborative Research Program on Marine Fishery Resources. Data on temperature, salinity and dissolved oxygen concentration of water in the area were collected using the Integrated CTD instrument. The survey period was in April to May which is the transition period between the Northeast monsoon to the Southwest monsoon, the feature from the study seem to mix under the influence of both monsoon seasons. The Northern part of the survey was still under the influence of the Northeast Monsoon as shown by the lower temperatures and higher salinity water of water along the coast from Da Nang to Nha Trang than those off shore. In the southern part of the area, the Southwest monsoon started to prevail as shown by the occurrence of weak upwelling off the Nha Trang coast, the shallow mix layer and the covering of mixed layer of the outer Gulf of Thailand station by the Thailand Gulf mixed layer water. The runoff from the Red and the Mekong River also plays an important role in the characteristics of the water in the study area, as shown from the distribution of low salinity and low oxygen off coast near the river. There was an intrusion of subsurface water (10-15 m) from off the Mekong River station to the subsurface water of station no.56 and 57 in the outer Gulf of Thailand. Temperatures between 29.5-30°C and salinity of about 33.2-33.5 PSU characterize the water. Six water masses, Continental shelf water, Open sea water, Maximum salinity water, Seasonal thermocline water, Permanent thermocline water and Deep water, were found during the survey period.
    Keywords: Oceanography ; Water masses ; Scientific research ; Salinity ; Hydrography ; Temperature ; Thermocline ; Dissolved oxygen ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 346-355
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  • 11
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26395 | 23782 | 2019-04-08 07:26:38 | 26395 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: During survey of SEAFDEC vessel in May, 1999, 39 samples of bottom sediments of Vietnamese coastline were collected. The samples were analyzed for their sedimentological, micropaleontological characteristics as well as for their total organic matter and mineralogical composition of sediments. The study area can be divided into three parts: northern, central and southern part. Northern and southern parts are characterized by a wide, shallow continental shelf, while central part has very narrow continental shelf. Generally, in the southern part sand is more spread, especially in the front of the Maekong river mouth (25.64% of total sediments), sediments is coarser than in others (average mean size is 0.162mm), better sorted, less skewed. In the northern part, clayish silts, clayish, sandy silts are most spread, sediments are poor sorted, moderate skewed. Average mean size is 0.088mm. In the central part, clayish, silty sand is dominant. Average mean size is 0.1507mm. Sediments are poor sorted. Result of study revealed an occurrence of 98 foraminifers species in the bottom sediments, 19 of them are plankton and 79 are benthos. A content of total organic matter in the study area varies from 0.125% to 1.344%. High content of TOM is observed in the central part, as well as in the south western part. A study on mineralogical composition has pointed out a presence of 35 minerals in bottom sediment.
    Keywords: Oceanography ; Micropalaeontology ; Organic matter ; Sediment texture ; Grain size ; Mineral composition ; Ocean floor ; Sediments ; Sediment analysis ; Foraminifera ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 409-421
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  • 12
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26267 | 2002 | 2019-02-22 07:07:16 | 26267 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Zooplankton samples from 31 stations in the western Philippines water were collected by M.V. SEAFDEC on 7 April - 19 May 1998. Six major groups were identified: Euphausiacea, Natantia (Penaeidea and Caridea), Reptantia, Brachyura, Stomatopoda and cephalopod paralarvae. Three genera of Euphausiacea were found, they belong to one family: this group formed 25.1% - 90.9% of total taxonomic groups at different stations. The superfamiiy Penaeidea consisted of seven genera belong to four families. Caridea larvae were composed of 11 families including 19 genera. Retantia consisted of three infraorder: Stenopodidea, Thalassinidea and Parinuridea. The infraorder Parinuridea comprised two families: Palinulidae and Scyllaridae. Fourteen families of Brachyura larvae occurred in the study area. Stomatopoda was composed of three families including three genera. Cephalopoda paralarvae were presented in the plankton samples by six families representing eight genera. The maximum counts for malacostraca larvae and cephalopod paralarvae was observed at station 16. The present study reveals that some economic species such as Penaeus spp., Parapenaeus spp., Panulirus spp., Scyllarus spp., Portunus spp. and Sthenoteuthis oualaniensis were important components of the zooplankton assemblages in the western Philippines.
    Keywords: Fisheries ; Oceanography ; Plankton surveys ; Zooplankton ; Molluscan larvae ; Biological sampling ; Crustacean larvae ; South China Sea ; Philippines ; Malacostraca ; Cephalopoda
    Repository Name: AquaDocs
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    Format: 177-196
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  • 13
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26272 | 2002 | 2019-02-21 01:55:17 | 26272 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: This paper discusses the distribution of dissolved nutrients and the hydrology of the first 100 m depth of Western Philippines, South China Sea (SCS). The object of the study was to understand variations in the distribution of these parameters by comparing the results of the April-May 1998 survey to previous studies made in the SCS and the Pacific side of Philippine waters. Water samples at different sampling depths (surface, 20, 40, 60, 80 and 100 m) were collected from 31 oceanic stations, from 11°-20°N and 117°-121°E. Results of this study confirmed that the chemical and hydrological profiles in SCS were similar but the range of values obtained for different parameters were dependent on the seasonal and spatial variations. The higher average temperature observed relative to the previous summer data may be attributed to the El Nino phenomenon. The mixed layer was deeper compared to the NE monsoon data. Conversely, western and eastern Luzon waters demonstrated differences in hydrological profile, except for the surface temperature, which was almost similar to the 1967-68 Pacific waters summer data. Among the nutrients investigated, phosphate and nitrate demonstrated a direct relationship with temperature, salinity and dissolved oxygen, from the surface down to 100 m depth. The behavior of phosphate and nitrate can be evaluated in terms of their hydrological structure in contrast to the more reactive silicate and nitrite ions.
    Keywords: Oceanography ; Dissolved inorganic matter ; Hydrographic data ; Nutrients (mineral) ; South China Sea ; Philippines
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    Format: 251-273
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  • 14
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26266 | 2002 | 2019-02-22 07:10:51 | 26266 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: A survey on the zooplankton in the waters of western Philippines was carried out from April 18 to May 9, 1998. The estimate of zooplankton biomass ranged from 0.92 mg/m3 to 20.85 mg/m3 with a mean of 5.70 mg/m3. Maximum and minimum densities of zooplankton recorded were 4683/m3 in station 16 and 446/m3 in station 5, respectively. The zooplankton communities were comprised of 37 different categories of animal groups. Copepods were the most dominant group in zooplankton communities at all stations but their abundance varied from 5% to 43% of the total zooplankton.
    Keywords: Fisheries ; Oceanography ; Plankton surveys ; Zooplankton ; Population density ; Biomass ; South China Sea ; Philippines ; Copepoda
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    Format: application/pdf
    Format: 164-176
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  • 15
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26270 | 2002 | 2019-02-22 03:38:03 | 26270 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Phytoplankton in the surface layers of South China Sea, Western Philippines were investigated for species composition, distribution and abundance. Thirty one stations were sampled during the cruise of M/V SEAFDEC to South China Sea along latitudes 8° to 20°N and longitudes 115° to 121°E from April 15 to May 11, 1998. In each station, water samples at the surface and at depths of 20, 40 and 60-m were collected by a 20-liters capacity Van-Dorn water sampler. Results of the phytoplankton analysis yielded a total of 56 taxa. These included 3 species of blue-green algae;1 genus of Chrysophytes;32 genera of diatoms and 20 genera of dinoflagellates. The phytoplankton assemblage was dominated by Bacillariophyceae or diatoms which accounted for 73% of the total standing stock. The top 5 most dominant representatives were Chaetoceros spp (962 cells/L); Bacteriastrum spp (587 cells/L); Rhizosolenia spp (349 cells/L); Thalassiothrix spp (314 cells/L) and Leptocylindrus danicus (162 cells/L). Chaetoceros spp occurred in almost all stations sampled. Dinoflagellates ranked second in terms of abundance (16%) although they were sporadic and in smaller densities. The top 5 most dominant representatives were Ceratium spp (249 cells/L); Podolampas spp (91 cells/L); Gonyaulax spp (63 cells/L); Dinophysis spp (55 cells/L) and Scrippsiella spp (46 cells/L). Blue-green algae or cyanophyceae accounted for 11% of the total standing crop and the most dominant species were Pelagothrix clevei (357 cells/L) and Trichodesmium thiebautii (153 cells/L). Less than 1% of the total standing crop is attributed to Chrysophytes represented by Dictyocha spp. Phytoplankton densities in the surface waters (0-m layer) was nominal compared to the other 3 strata/layers (20;40 and 60-m). Phytoplankton densities increased with depth. Abundant concentrations of phytoplankton coincided with the fluorescence maxima and maximum concentrations of nutrients. Trichodesmium thiebautii was dominant and formed patches in the surface and nearsurface waters along the coast of northern Luzon or near the entrance of Luzon Strait where low water temperatures were recorded and high concentrations of dissolved nutrients were noted, while Pelagothrix clevei was also observed to form patches at the surface and near-surface waters along the southern coast near the entrance of Sulu Sea where low water temperatures were recorded and high salinities and maximum concentrations of dissolved nutrients were observed. Abundant concentrations of diatoms composed mostly of several species of Chaetoceros; Bacteriastrum; Rhizosolenia; Thalassiotrix and Leptocylindrus were observed along and/or near the coastlines, while in stations offshore, minimal density was noted. Several species of dinoflagellates in low densities were observed in stations going offshore. The paper closes with a brief discussion of the general distribution pattern exhibited by the phytoplankton.
    Keywords: Oceanography ; Dominant species ; Plankton surveys ; Phytoplankton ; South China Sea ; Philippines ; Dinoflagellata ; Bacillariophyceae ; Cyanophyta
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  • 16
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26265 | 2002 | 2019-02-22 07:16:03 | 26265 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Composition, abundance and distribution of ichthyoplankton were investigated in the South China Sea, western Philippines. Larval fish samples were collected at 31 stations by surface and double oblique tows in April/May 1998. A total of 7371.67 fish larvae, representing 85 families, were collected in the samples. Abundance of fish larvae were dominated by the Myctophidae followed by the Gonostomatidae. The ten most abundant families of fish larvae found in this study were separated into three broad categories: (1) inshore fishes, represented mainly by the Bregmacerotidae, Gobiidae, Apogonidae, and Carangidae;(2) mid zone fishes represented mainly by the Hemiramphidae, Labridae and Engraulidae;(3) offshore fishes represented mainly by the Myctophidae and Gonostomatidae. Depth and time of day appeared to affect the abundance of fish larvae and fish eggs. Fish larvae were found mainly in double oblique tows while fish eggs were found mostly in surface tows. The larvae caught at night were more abundant than larvae caught during the day. Abundance and distribution of tuna larvae are also discussed.
    Keywords: Fisheries ; Oceanography ; Ichthyoplankton ; Abundance ; Fish larvae ; South China Sea ; Philippines ; Gonostomatidae ; Myctophidae
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    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 148-163
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    Florida Marine Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/26023 | 20978 | 2018-10-15 00:08:58 | 26023 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-24
    Description: Manatees wintering in Tampa Bay, Florida, were captured and fitted with satellite- and radio-telemetry equipment during a research project conducted from 1991 to 1996. Forty-four manatees were tagged after their capture in Tampa Bay; an additional 15 animals were tagged at other west coast locations. Locations of individual animals were estimated via satellite up to eight times per day, and observations of manatee locations were made in the field one or more times per week. These data were entered into a relational database and converted to a format accessible as points within a geographic information system (GIS). Seasonal densities of satellite locations were mapped for 33 manatees tagged in Tampa Bay. Within the bay, manatees aggregated at or near warm-water locations during winter. In other seasons, manatee density was highest in areas that had abundant sea grass and were close to fresh-water sources. Sequential data points for individual manatees were transformed into probable travel routes by using a GIS-based cost-path analysis. A map was created for each tagged manatee depicting estimated travel paths, and detailed descriptive information summarized major movements, tagging history, and physical characteristics. The travel patterns of male manatees were characterized by almost continual movement, often along predictable routes or circuits. Most males larger than 265 cm ranged 100 km or more away from Tampa Bay during non-winter months whereas smaller males remained in or near the bay. As males matured, their travel ranges appeared to expand. Female manatees used two general movement patterns. Small females and females with calves would use specific areas within a day’s travel of the warm-water sources for extended periods before moving to similar nearby areas for protracted stays. Females without calves and females longer than 330 cm with calves added long migrations between areas chosen for foraging.The ranges of some females extended south to Charlotte Harbor,the Caloosahatchee River,and the Everglades. Two tagged females traveled from Florida’s west coast to the east coast: one traveled south around the peninsula, and the other apparently moved east through Lake Okeechobee and the lock system.
    Keywords: Biology ; Conservation ; Manatees ; Trichechus manatus latirostris ; Tampa Bay ; Florida ; travel patterns ; migration
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 156
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    Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/26035 | 425 | 2018-11-06 20:18:25 | 26035 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-24
    Description: Florida Department of Health
    Description: Florida Fish and Wildlife Conservation Commission
    Description: Florida Department of Health Grant Award, U50-CCU423360-01
    Description: U.S. Centers for Disease Control and Prevention
    Keywords: Conservation ; Health ; Pollution ; Harmful algal blooms ; HAB ; Karenia brevis ; Cyanobacteria ; Florida
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 132
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26273 | 2002 | 2019-02-21 01:56:39 | 26273 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: A collaborative cruise in the South China Sea in the waters of the South China Sea off the Western Philippines was conducted in the post-monsoon (April and May, 1998) periods on board MV SEAFDEC. The nanoplankton (including the smaller microplanktonic species) from 31 sampling stations consisted of more than 200 taxa comprising predominantly of nanodiatom (〉150 species), Prymnesiophyta (〉48 species), Dinoflagellata (〉30 species) and Prasinophyta (〉18 species). Among the minute plankton collected, three species of nanodiatom (Minidiscus comicus, M. chilensis, M. trioculatus) and numerous Prymnesiophyta species were present. The dominant pennate diatom comprised of Synedra parasitica, Fragilaria brevistriate, Diploneis crabro and Neodenticula sp., all of which were 〈20µm in size. The central diatom comprised of Cyclotella striata, C. meneghiniana and Stephenopyxis palmeriana. The genera of Synedra, Navicula, Fragilaria and Thalassiosira contained a wide range of species; however, majority of these species were new records and have not been taxonomically identified. The dominant Prymnesiophyta species (mostly small flagellate cells) comprised genera of Distephanus, Thalassomonas, Coccolithus, Protosphaera and Cryptochrysis; while those of dinoflagellate consisted of a wide range of species of genera Gyrodinium, Pyrodinium, Gonyaulax, Scrippsiella, Protoperidinium, Protoceratium, Ceratocorys and Alexandrium. The genera of Protoperidinium, Coccolithus, Minidiscus and Thalassiossira had a wide range of species. The class Heptophyceae comprising of the three families namely; Prymnesiaceae (Chrysochromulina sp.), Coccolithaceae (Oolithotus fragilis, Coccolithus pelagicus) and Gephyrocapsaceae (Emiliania huxlegi, Gephyrocapysa oceanica) had high cell densities (ranging from 1 x 10〈sup〉5〈/sup〉 L〈sup〉-1〈/sup〉 - 5 x 10〈sup〉5〈/sup〉 L〈sup〉-1〈/sup〉) especially in the nearshore waters. The total nanoplankton population (ranging from 3.1 x 10〈sup〉5〈/sup〉 to 2.47 x 10〈sup〉5〈/sup〉 L〈sup〉-1〈/sup〉) was dense in nearshore regions (especially around Subic and Manila bays) and tend to spread out in concentric semicircle into the open sea. The presence of the dinoflagellate species of Protoperidinium and Alexandrium were detected in considerable amounts at nearshore and midshore Philippines waters of the South China Sea. Blooms of Pyrodinim bahamense and Protoperidinium sp. (to a limited extend) occurred during the study period.
    Keywords: Oceanography ; Plankton surveys ; Abundance ; Biological sampling ; Nannoplankton ; South China Sea ; Philippines ; Prasinophyta ; Dinoflagellata ; Prymnesiophyta
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 274-290
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26275 | 2002 | 2019-02-21 01:16:31 | 26275 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The findings are presented of observations made during the SEAFDEC cruise conducted in western Philippines waters during the period mid April-mid May 1998 regarding the geostrophic and tidal currents. The dynamic high and low in the study area were owed to the relative vertical movement of water. The high area reflected a downward movement or downwelling in which as far as fisheries is concerned, is less potential for fisheries. The low dynamic surface due to cyclonic eddy caused by wind turbulence near the head of Luzon Island indicated a potential fishing ground for this season. Wind-dominated circulation with some orographic effects suggested that potential fishing grounds might be located for each season from wind data from coastal as well as ship stations.
    Keywords: Fisheries ; Oceanography ; Geostrophic flow ; Fishing grounds ; Fishery oceanography ; Current observations ; Tidal currents ; South China Sea ; Philippines
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 308-315
    Format: 8
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26274 | 2002 | 2019-02-21 01:28:23 | 26274 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The characteristics of water in the South China Sea from latitude 11° N to 20°N and longitude 117°E to 121°E during 18 April to 8 May 1998 have been studied using Integrated CTD instruments onboard MV. SEAFDEC. It was found that there are six watermasses in the study area and there is upwelling off coast of northern Luzon Island at from the surface down to 200-meters. The water properties are influenced both by northeast and southwest monsoon winds as the duration of survey are during the transitional period, also by outflow from shore. The strong thermocline, halocline and pycnocline are present all over the area.
    Keywords: Oceanography ; Water masses ; CTD profilers ; Coastal upwelling ; Hydrographic data ; South China Sea ; Philippines
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 291-307
    Format: 17
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26278 | 2002 | 2019-03-01 06:39:00 | 26278 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The Seminar presents an analysis of the results of the fisheries and oceanographic survey covering the waters of western Philippines, Area III, conducted during the period April-May 1998 by the M.V. SEAFDEC. A total of 23 papers are included in the following 4 sections: 1) Fisheries resources; 2) Fishery biology; 3) Primary production; and, 4) Fishery oceanography and marine pollution.
    Keywords: Fisheries ; Oceanography ; Pollution ; Marine fisheries ; Conferences ; Fishery surveys ; Fishery oceanography ; Fishery biology ; Fishery resources ; South China Sea ; Philippines
    Repository Name: AquaDocs
    Type: book
    Format: application/pdf
    Format: application/pdf
    Format: 336
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26392 | 23782 | 2019-04-08 06:42:30 | 26392 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The report is considered in two parts as climatological regime in which the most of meteorological parameters are summarized in its climatological conditions based on long time series of data and the exact weather phenomenon occurred on the area during the time of the expedition. In doing such study we have used two kinds of data, one is climatological data collected during the recent 30 years on the stations located along the Vietnam coast and islands, another is data collected during the time of present cruise expedition. The final consideration will reveal the variation of the weather condition in comparison with the climatological characteristics of each meteorological parameter. The cruise crossing expedition comprises 58 points expanding throughout on Vietnam continental shelf. The study area can be divided into 6 areas depending on the geographical and hydro- meteorological features of each region. We try to describe the climatological regime in each region in particular and the weather condition of the whole area during the time of cruise exploitation.
    Keywords: Oceanography ; Climatic data ; Weather ; Hurricanes ; Scientific research ; Winds ; Humidity ; Climatology ; Air temperature ; Viet Nam
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 356-364
    Format: 9
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26394 | 23782 | 2019-04-08 07:18:13 | 26394 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Water samples from off shore of Vietnam from latitude 6°N to 21°N and longitude 103°C to 112°E were collected on 30 April 1999 to 29 May 1999 and analyzed for copper (Cu), lead (Pb), cadmium (Cd), zinc (Zn), nickel (Ni), chromium (Cr), arsenic (As) and mercury (Hg). The concentration of metals Cu, Pb, Cd, Zn, Ni and Cr was measure using flameless atomic absorption spectroscopy. The total concentration of all eight metals was in concentration ranges of unpolluted coastal water. The results indicated that the concentration of metals in bottom layer higher than in surface layer. Also, trace metal contents in the surface sediment were studied in off shore of Vietnam during this cruise. Total metals content were measured. The range of concentration of metals were 10.3 - 71.0 mg.g-1 for Cu, 12.9 - 33.7 mg.g-1 for Pb, 1.29 - 18.72 mg.g-1 for Cd, 45.8 - 164.8 mg.g-1 for Zn, 21.2 - 93.6 mg.g-1 for Cr, 5.7 - 45.8 mg.g-1 for Ni, 1.64 - 3.80 mg.g-1 for As, and 0.104 - 0.493 mg.g-1 for Hg. The levels found in the present study are similar to data from other marine.
    Keywords: Oceanography ; Arsenic ; Chromium ; Heavy metals ; Nickel ; Copper ; Water analysis ; Sediments ; Water pollution ; Lead ; Trace elements ; Scientific research ; Sea water ; Zinc ; Mercury ; Cadmium ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 374-408
    Format: 35
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26385 | 23782 | 2019-04-05 08:38:26 | 26385 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: A collaborative sea cruise in the Vietnam waters of the South China Sea was conducted in the postmonsoon (21 April to 5 June, 1999) period on board MV SEAFDEC. The nanoplankton from 21 sampling stations consisted of 134 taxa comprising predominantly of centric nanodiatom (29 species), pennata nanodiatom (40 species) and dinoflagellate (65 species). Among the minute plankton collected, three species of nanodiatom (Minidiscus comicus, M. chilensis, M. trioculatus) and numerous dinoflagellate species were present. The pennate nanodiatom comprised of the species of Asterionella, Psammodiscus and Amphipleura ranging from 5.25 x 102 to 1.67 x 104 cell/L; all which were 〈20?m in size. The dominant centric nanodiatom comprised of species of Thalassiosira, Minidiscus, Chaetoceros and Cyclotella, ranging from 1.36 x 102 to 4.61 x 104 cell/L. The genera of Chaetoceros, Minidiscus, Cyclotella, Coscinodiscus, Navicula, Fragilaria and Thalassiosira contained a wide range of species; however, majority of these species were new records and have not been taxonomically identified. The Prymnesiophyta (mostly small flagellate cells and Prasinophyta species) were rarely present; while those of dinoflagellate consisted of a wide range of species of genera Amphidoma, Centrodinium, Palaephalacroma, Peridinum, Planodinium, Gyrodinium, Gonyaulax, Scrippsiella, Protoperidinium and Protocentrum. The genera of Protoperidinium, Peridinium, Gonyaulax and Prorocentrum had a wide range of species. The class Heptophyceae comprising of Prymnesiaceae, Coccolithaceae and Gephyrocapsaceae were rarely present. The total nanoplankton population (ranging from 0.24 x 104 to 5.47 x 104 L-1) was dense in nearshore regions (especially in waters between Da Nang and Nha Trang) and tend to spread out in concentric semicircle into the open sea. The presence of the dinoflagellate species of Amphidoma, Centradinium and Planadinium were detected in considerable amounts at midshore Vietnam waters of the South China Sea. Blooms of Gyrodonium sp. and Amphidoma sp. (to a limited extend) occurred during the study period.
    Keywords: Oceanography ; Community composition ; Geographical distribution ; Ecological associations ; Abundance ; Check lists ; Plankton ; Nannoplankton ; Algae ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 198-232
    Format: 35
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26396 | 23782 | 2019-04-08 07:33:40 | 26396 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Enumeration of hydrocarbon-degrading microorganisms (HDM) and their degradative capacity studies were carried out in area IV of South China Sea (Vietnamese water). Microbial most probable number (MPN) varied from 101 to 105 cell/ ml of surface seawater or gram of sediment. Some microbial communities and bacterial strains isolated from 97 collected samples show high hydrocarbon degradation and surfactant producing abilities. Preliminary results of our microbial study indicated that oil pollution in IV area was not found in 30 research stations. Slight oil contamination was observed in 28 survey stations.
    Keywords: Oceanography ; Pollution ; Pollution monitoring ; Marine pollution ; Microbiology ; Microorganisms ; Aromatic hydrocarbons ; Oil pollution ; Viet Nam
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 422-428
    Format: 7
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    Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/26943 | 9413 | 2019-11-28 00:20:27 | 26943 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-24
    Description: This is the second edition of the Seagrass Integrated Mapping and Monitoring (SIMM) report, providing mapping and monitoring information for seagrasses throughout Florida’s coastal waters. Each regional chapter has been updated, and we have added information on management programs and water quality and clarity. For most regions, seagrass maps nowshow data gathered between 2010 and 2014. Exceptions include the Big Bend, Cedar Keys, Waccasassa Bay, the Charlotte Harbor region, Estero Bay, the Ten Thousand Islands, and Biscayne Bay; however, imagery was acquired in 2014 or 2015 with photo-interpretation underway for these remaining regions except Cedar Keys, Waccasassa Bay, and Biscayne Bay.The primary indicators derived from mapping projects are seagrass areal coverage and habitat texture (i.e., continuous or patchy). Secondary indicators of seagrass condition and health determined by mapping projects are estimates of gains and losses in cover and changes in texture determined from analyses of two most recent sets of imagery having the same spatial extent. Where successive imagery data sets are available, we have updated changes in seagrass acreage.
    Description: Version 2 of TR-17
    Keywords: Conservation ; Environment ; seagrass ; seagrass abundance ; seagrass mapping ; seagrass monitoring ; water quality ; Florida
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 281
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    Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/26945 | 9413 | 2019-12-10 18:44:36 | 26945 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-24
    Description: The Spotted Seatrout Cynoscion nebulosus (Sciaenidae) is an estuarine fish of economic importance, commercially and recreationally, in Florida. Harvesting of this fish has been steadily decreasing since the 1950s. In the late 1980s, the Florida Fish and Wildlife Conservation Commission (FWC) implemented a major effort to stop the decline in landings and classified the species as restricted, regulating the importation, transportation, and possession of these fish. Over the period 1981-2012, combined recreational and commercial landings of Spotted Seatrout have been flat, primarily because of regulation of the fishery. In the absence of a well-resolved population genetic structure for the Spotted Seatrout, the FWC has relied on coastal watershed features and reproductive differences among estuaries to demarcate regions for management purposes. ... In the present study we identify three genetic stocks of Spotted Seatrout in Florida waters, each with a unique range: 1) from the western border of Florida to Apalachicola Bay, 2) east of Apalachicola Bay through Biscayne Bay, and 3) from Sebastian Inlet to the northeast border of the state. The genetic patterns observed indicate that little if any contemporaneous reproductive exchange takes place between these stocks and that recruitment usually occurs in the natal estuary. The geographic boundaries that frame the FWC’s periodic stock assessments and other demographic evaluations of Spotted Seatrout are not a perfect match with those of the genetically identified stocks. We recommend that, in its assessments of Florida stock of the Spotted Seatrout, the FWC use the genetic stock boundaries that we describe here.
    Keywords: Conservation ; Management ; spotted seatrout ; restricted species ; geographic boundaries ; biological units ; population genetic structure ; microsatellite markers ; stock assessments ; Florida
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 26
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    Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/26946 | 9413 | 2019-12-10 18:58:03 | 26946 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-24
    Description: This Florida Fish and Wildlife Conservation Commission–Fish and Wildlife Research Institute (FWC-FWRI) Technical Report describes and summarizes the FWC-FWRI aerial-survey projects conducted from 1984 to 2004 to document manatee distribution in Florida and it provides details of the methods used in the studies. Surveys reported here were conducted by FWC or in conjunction with other agencies. This report is intended for use by local, state, and federal agencies and others involved in assessing the impacts of human activities on manatees and their habitat. It provides basic summaries of these surveys, their methods, the resulting data, and includes maps showing where manatees were sighted. Aerial survey data (manatee sightings and flight routes) from this technical report are available in a Geographic Information System (GIS) computer mapping format (shapefiles) on the FWC–FMRI Atlas of Marine Resources CD–ROM or on the FWC website. The analyses reported do not address in detail the environmental and habitat factors that may influence aerial surveys. The data and analyses described in this report provide a starting point for researchers who want to further investigate the seasonal distribution and habitat use of manatees in Florida. Other available data sets pertaining to manatee management and protection are also described. The information presented in this document is current to 2004 and does not include projects or surveys conducted after 2004.
    Keywords: Conservation ; aerial surveys ; manatee distribution ; Florida
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 273
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    Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/26947 | 9413 | 2019-12-28 20:08:14 | 26947 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-24
    Description: Three of the 20 species in the genus Trachinotus, in the jack family, Carangidae, are found in Florida waters. These are Florida Pompano (T. carolinus), Permit (T. falcatus), and Palometa (T. goodei). Florida Pompano is a coastal pelagic species found in estuarine and marine waters; it spawns in multiple batches in offshore waters. Permit is the largest and longest lived of the three species and also spawns offshore in multiple batches, near reefs. As adults, Permit can be found nearshore and offshore and are often associated with reefs, but as juveniles they are common estuarine inhabitants. Palometa is a marine species, similar in size to Florida Pompano, and has the widest latitudinal distribution of the three species. Palometa spawn in offshore waters throughout the year with two peaks of activity. All three species support commercial or recreational fisheries on both the Gulf of Mexico coast and Atlantic coast of Florida. Very little has been done to evaluate movement patterns of Trachinotus species. Based on a few tagging studies, it appears that Pompano do not travel far from coastal waters. The only preliminary investigation of genetic stock structure for the Florida Pompano population from Tampa Bay, FL, and Puerto Rico was based on microsatellite markers developed for the Pompano. The report’s key conclusion was that Pompano from Puerto Rico and from Florida belong to two highly distinct genetic stocks. This study was conducted to re-examine, using different microsatellite markers, the genetic status of Pompano stocks in Florida and Puerto Rico. The objectives of this study, therefore, were the following: 1) to develop microsatellite markers for Permit; 2) to cross-amplify the markers in Pompano and Palometa; and 3) to use these markers to confirm the status of Puerto Rico Pompano as a novel genetic stock using the methods of Bayesian population assignment, phylogenetic clustering, and factorial correspondence analysis. ... Three methods were used to investigate the relationship among the taxa using the microsatellite genotype data obtained from the samples. The results from the three analytical methods, based on Bayesian population assignment tests, phylogenetic clustering, and factorial correspondence analysis of genetic relationships among the four Trachinotus samples, showed that Florida and Puerto Rico Pompano samples belong to two highly distinct gene pools. But other multiple molecular tools, particularly nuclear-DNA sequences from many introns, and nonmolecular tools, such as morphological and meristic data, should be used together to determine species-level categorical designation for the Puerto Rico Pompano.
    Keywords: Biology ; Oceanography ; Florida Pompano ; Permit ; Palometa ; genetic stock ; microsatellite markers ; species delineation
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    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 21
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    Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/26948 | 9413 | 2019-12-28 20:24:05 | 26948 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-24
    Description: Mangrove swamps and salt marshes provide valuable ecological services to coastal ecosystems in Florida. Coastal wetlands are an important nursery for many ecologically and commercially important fish and invertebrates. The vegetation stabilizes shorelines, protecting the coast from wave energy, storm surge, and erosion. Coastal wetlands are also able to filter surface water runoff, removing excess nutrients and many pollutants. Peat deposits sequester large amounts of carbon, making coastal wetlands a key sink in global carbon cycles.Mangroves and salt marshes, however, are vulnerable to both direct and indirect threats from human development. Current threats include continued habitat loss, hydrologic alteration of surface and groundwater, sea-level rise, and invasive vegetation. ... Coastal wetland monitoring programs are often short-lived and vary widely in methodology. Monitoring most commonly occurs on protected public lands or at wetland mitigation or restoration sites. These monitoring projects are rarely long-term due to a lack of funding; restoration sites are generally monitored for only a few years. Although long-term funding is difficult to secure, monitoring over long time scales is increasingly important due to regional uncertainties as to how coastal wetland vegetation and substrate accretion will respond to sea-level rise, altered freshwater hydrology, and other disturbances. While periodic land cover mapping programs can capture large-scale changes in habitat extent, smaller-scale species shifts among mangrove and salt marsh vegetation are best captured by on-the-ground monitoring.The chapters in this report summarize recent mapping and monitoring programs in each region of Florida. Content of each chapter includes a general introduction to the region, location-specific threats to salt marshes and mangroves, a summary of selected mapping and monitoring programs, and recommendations for protection, management, and monitoring. Land cover maps in this report generally use data from the most recent water management district land use/land cover (LULC) maps.
    Description: Coastal Habitat Integrated Mapping and Monitoring Program (CHIMMP)
    Keywords: Conservation ; Environment ; Management ; Coastal Habitat Integrated Mapping and Monitoring Program ; CHIMMP ; Coastal Wetlands Group ; coastal wetlands ; salt marsh ; mangrove ; mapping ; monitoring ; management
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 160
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    Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/26967 | 9413 | 2020-02-21 18:58:25 | 26967 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-24
    Description: Oysters provide a variety of critical ecosystem services to coastal communities in Florida. They improve water quality and clarity as they filter feed, lessen shoreline erosion, and provide a habitat or food source for a wide variety of birds, fish, and invertebrates. Oysters are commercially valuable as a harvested food source, and historically their shell has been mined extensively for construction material. The eastern oyster (Crassostrea virginica) is the only reef-building oyster in Florida and forms both subtidal and intertidal reefs. Numerous other species of non-reef-building oysters are less frequent. This report focuses primarily on the eastern oyster, because it is the most abundant oyster in Florida and because it is important as both a keystone species and an ecosystem engineer.
    Keywords: Conservation ; Florida ; oyster ; eastern oyster ; Crassostrea virginica ; Oyster Integrated Mapping and Monitoring Program ; OIMMP ; oyster reef
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    Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/26968 | 9413 | 2020-02-21 19:10:47 | 26968 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-24
    Description: Knowing how many manatees live in Florida is critical for conservation and management of this threatened species. Martin and others flew aerial surveys in 2011–2012 and estimated abundance in those years using advanced techniques that incorporated multiple data sources. We flew additional aerial surveys in 2015–2016 to count manatees and again applied advanced statistical techniques to estimate their abundance. We also made several methodological advances over the earlier work, including accounting for how sea state (water surface conditions) and synchronous surfacing behavior affect the availability of manatees to be detected and incorporating all parts of Florida in the area of inference. We estimate that the number of manatees in Florida in 2015–2016 was 8,810 (95% Bayesian credible interval 7,520–10,280), of which 4,810 (3,820–6,010) were on the west coast of Florida and 4,000 (3,240–4,910) were on the east coast. These estimates and associated uncertainty, in addition to being of immediate value to wildlife managers, are essential new data for incorporation into integrated population models and population viability analyses.
    Keywords: Conservation ; Florida ; manatees ; population ; abundance estimate
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    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/428 | 3 | 2020-08-24 02:56:50 | 428 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-29
    Description: The shoaling and bank erosion at Ponce de Leon channel, Punta Gorda, Florida, havecaused concern of harming the mangrove community along the channel. Three factorswere identified that could contribute to the bank erosion of Ponce channel. Theyare tidal induced current, wind waves penetrating from the Charlotte Harbor, andwakes caused by boat traffic. According to the field experiments and numericalmodeling studies, it was determined that the combined wind wave and tidal currentforce is the major cause to the bank erosion. Wind wave appears to play a moreimportant role because of its dynamic nature. For the present cross-sectionalchannel condition the tidal current alone is only a moderate erosional force.It was also found that reopening the barge canal would cut the tidal currentstrength in the Ponce channel by a half. This current reduction would reduce butnot eliminate bank erosion in the lower reach as the wind-wave induced force willremain to be an important erosional factor.A number of remedial alternatives were given in the report. The most direct methodis to provide bank protection. The extent of the protection depends upon theextent of wind wave penetration which could be as deep as 150 m into the channelunder the present channel entrance condition. (This document has 49 pages. )
    Keywords: Oceanography ; Engineering ; tidal current ; erosion ; channels ; Ponce de Leon channel ; Florida ; mangroves ; Punta Gorda
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    University of Florida, Coastal and Oceanographic Engineering Department
    In:  http://aquaticcommons.org/id/eprint/478 | 3 | 2020-08-24 02:59:47 | 478 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-30
    Description: Abstract of Thesis Presented to the Graduate Schoolof the University of Florida in Partial Fulfillment of theRequirements for the Degree of Master of EngineeringVIDEO MONITORING TECHNIQUES IN THECOASTAL ENVIRONMENTByThe field of coastal engineering has primarily utilized traditional measurementtechniques such as boat surveys and beach profiles. Aerial photography has played amajor role in the mapping of coastlines and ocean currents. More recent technology hasprovided the ability to make field measurements with precision electronicinstrumentation, but the problem of making large-scale measurements within economicbounds remains. The video revolution and, in particular, desktop video has greatlyenhanced the ability of scientists and engineers to visualize events over greater periods oftime and larger scales than ever before.The uses of video, benefits, shortcomings, and future expectations are presentedas applicable to the field of coastal engineering. This feasibility study incorporates someapplications which have previously been explored, as well as others which result fromtwo unique video data sets that were collected between 1991 and the present.
    Description: Masters
    Description: UFL/COEL/93/006
    Keywords: Oceanography ; Engineering ; Earth Sciences ; coastal changes ; video monitoring
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    Type: thesis
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    University of Florida, Coastal and Oceanographic Engineering Department
    In:  http://aquaticcommons.org/id/eprint/475 | 3 | 2020-08-24 03:09:11 | 475 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-29
    Description: A method of predicting equilibrium scour depths around multiple pile structuresbased on pre-scoured bottom shear stress was developed in this study. It washypothesized that a relationship exists between the pre-scoured bottom shear stress andthe equilibrium scour depth. A series of hydrodynamic tests were conducted in whichnear-bottom flow measurements were made in the vicinity of a variety of multiple pilestructures. The distribution of bottom shear stress was estimated from these flowmeasurements. Scour tests were then made in the same flume using the same structures.A simple relationship between the equilibrium scour depth and the pre-scoured bottomshear stress was formulated and the data from the two sets of experiments were used tocalibrate and test the formulation. The formulation gives reasonable predictions for therange of conditions tested. The approach appears promising as an alternative way of estimating equilibrium local scour depths for complex multiple pile structures. Inaddition, a number of interesting and useful findings were made regarding the rate atwhich a local scour hole forms near complex structures. (Document contains 146 pages.)
    Description: Masters
    Description: UFL/COEL/93/003
    Keywords: Engineering ; Scouring ; models
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    Type: thesis
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    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/535 | 3 | 2020-08-24 03:04:05 | 535 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-30
    Description: This report presents results of field measurements and numerical modeling of thehydrodynamic and sedimentary behaviors at a boat lock located in Section 15, BurntStore Isles of Punta Gorda, Florida. The purpose of the study is to establish thequantities of tidal flows through the lock in comparison with the flows bypassing thelock through other outlets between Section 15 and the Alligator Creek. The amountof sediment and pollutant transporting through the lock are also estimated in thestudy. (Document has 68 pages.)
    Keywords: Engineering ; Environment ; Punta Gorda ; Florida ; canals ; Alligator Creek ; Flow exchange ; Boat lock ; Pollutant transport
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    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/536 | 3 | 2020-08-24 03:04:36 | 536 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-30
    Description: This is the first of a pair of reports documenting the effects of storms on barrier island systems.The present report (Volume 1) investigates storm effects on natural island conditions whereasVolume 2 addresses the effects of seawalls. With the aim of simulating the effects of overwashon barrier islands and characterizing their response, a series of nine experiments was conductedat the Coastal Engineering Laboratory of the University of Florida. The barrier island wassimulated by a 400 feet wide (prototype units) horizontal crest and an initially planar (1:19)beach. The effects of various storm surge levels and accompanying overtopping were investigated.Experiments were conducted with both regular and irregular storm waves. Regularwaves without overtopping caused the formation of a substantial berm in the swash zone and aprominent longshore bar offshore. Increasing degrees of overtopping resulted in substantial lossof sand from the barrier island system. The longshore bar was considerably more subtle for thehighest water level tested (11.5 ft. above mean sea level). Simulation of a storm-surge hydrographwith rising and falling water levels indicated that the presence of the bar tends to occuronly during a relatively steady or slowly changing water level. The experiments with irregularwaves were conducted with reasonably similar wave heights and carrier periods as those withregular waves. The major difference was in the characteristics of the longshore bar response. Incomparison with cases with regular waves, the bar was less distinct without overtopping, subtlewith minimal overtopping and absent in cases with substantial overtopping. These experimentsseem to indicate that offshore bars are simply break-point bars which require a fairly steadybreak-point and undertow (return of mass transport) for optimal formation. (Document has 84 pages.)
    Description: Department of Civil and Coastal Engineering, University of Florida
    Description: Prepared for: Beaches and Shores Resource Center Innovation Park, Morgan Building Box 9 2035 East Paul Dirac Drive Tallahassee, Fl 32304
    Keywords: Oceanography ; Engineering ; Earth Sciences ; Barrier Island ; Storm Effects ; Beach Erosion ; Overwash ; Washover
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    Type: monograph
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    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/533 | 3 | 2021-02-27 20:20:10 | 533 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-30
    Description: This report presents results of the experiments of the existing inlet and eightstructural alternatives to the Sebastian Inlet from a movable bed model. It is intendedto find solutions for improvement of boating safety and protection of beaches adjacentto the inlet. Based upon the experimental results from here and the fixed bed modelstudy, which is summarized in Part I report, an optimum structural modification planwas then recommended providing a general frame of improvement scheme.The research in this report was authorized by the Sebastian Inlet District Commissionof September 15, 1989. The University of Florida was notified to proceedon November 14, 1989. The study and report were prepared by the Department ofCoastal and Oceanographic Engineering, University of Florida. Coastal TechnologyCorporation was the technical monitor representing the Sebastian Inlet District. (Document has 109 pages.)
    Keywords: Oceanography ; Engineering ; Planning ; Erosion ; Sediment transport ; Shore erosion ; Structural alternative ; Sebastian Inlet ; Florida
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    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/534 | 3 | 2020-08-24 03:03:47 | 534 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-30
    Description: This thesis examines the historical shoreline response to inlet modifications and sealevel rise. Inlet modifications are considered to be the geographic stabilization and training(through the use of structures) of natural inlets and the creation and further modification ofartificial inlets. Shoreline response to natural and artificial processes must be understood inorder to predict the performance of the coastline. The tendency for creating and modifyinginlets increases as industry and population growth demands. Sea level rise is a natural processwhich cannot be controlled at this time. Current theoretical approaches to predictingshoreline response indicate that sea level rise and inlet modifications can cause substantialshoreline impact. Florida, with roughly a century of shoreline position and relative sea leveldata, provides a basis for examining past trends and comparing them with theory.The shoreline of Florida was found to be accreting with the greatest accretion alongthe east coast. Shoreline responses within the boundaries of the erosional influence of inletsdue to their creation and/or modification were examined for 19 inlets around the coast ofFlorida. The differences in the shoreline response before and after the initial modification ofeach inlet show the erosional strain that inlets apply on the nearby shoreline. The effect onshoreline response due to the human intervention (unnatural processes) of modifying inletswas isolated and examined. The shoreline response due to this "human intervention" was erosional, thereby showing the negative impact that modified inlets have on shorelines. Thisinduced erosion is responsible for the loss of roughly 21.6 million cubic yards of sand from theshoreline that is within the erosional influence of Florida's east coast inlets. Combining theshoreline changes due only to natural processes with sea level rise data allows for comparisonwith the commonly accepted Bruun Rule for shoreline response as a result of a changingsea level. This comparison and the effects of including a lag time between a rise in sea leveland a change in shoreline along the east coast of Florida during the last century show noagreement with the Bruun Rule and no correlation with a specific lag time. (Document has 153 pages.)
    Keywords: Oceanography ; Engineering ; Earth Sciences ; Coasts ; Sea level changes ; Coastal inlets ; Florida
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    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/541 | 3 | 2020-08-24 03:05:18 | 541 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-30
    Description: This is the second of a pair of reports documenting the effects of storms on beach systemsincluding the presence of seawalls. With the aim of simulating the effects of overwash onbarrier islands with seawalls and characterizing their response, a series of eight experimentswas conducted at the Coastal Engineering Laboratory of the University of Florida. The barrierisland was simulated by a 400 feet wide horizontal crest and an initially uniform mildly-sloped(1:19) beach. The effects of positioning the seawall at two different locations as well as the effectsof various storm surge levels and accompanying overtopping were investigated. Experimentswere conducted with both regular and irregular storm waves. With the seawall located at theslope break between the crest and the sloping beach of the barrier island, and the crest of theseawall just submerged in sand, the effects on the sediment transport process were found to beminimal. For the same position of the seawall but with the crest of the seawall raised above thesurrounding ground level, overtopping caused washover of sand indicating substantial transportin suspension. Increased levels of overtopping tended to accentuate bed profile changes butsupress bar formation (as did irregular waves). Positioning the seawall at the Mean Sea Levelshoreline caused significant scour both immediately landward as well as immediately seawardof the seawall. A prominent scour trough developed further seaward. The longshore bar washighly three-dimensional. It appears that seawalls need to be located adequately landward of theshoreline to discharge their function effectively without adverse effect to the beach. In addition,concerns for safety warrant the presence of an adequate buffer-zone between the seawall andthe upland property. (61 pp.)
    Description: Prepared for: Beaches and Shores Resource Center Innovation Park, Morgan Building Box 9 2035 East Paul Dirac Drive Tallahassee, Fl 32304
    Keywords: Oceanography ; Engineering ; Earth Sciences ; Barrier island ; seawalls ; storm effects ; beach erosion ; overwash
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    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/542 | 3 | 2020-08-24 03:05:43 | 542 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-30
    Description: This report presents results of field measurements and numerical modeling of thehydrodynamic and sedimentary behaviors at a boat lock located in Section 15, BurntStore Isles of Punta Gorda, Florida. The purpose of the study is to establish thequantities of tidal flows through the lock in comparison with the flows bypassing thelock through other outlets between Section 15 and the Alligator Creek. The amountof sediment and pollutant transporting through the lock are also estimated in thestudy. (68 pp.)
    Description: Prepared for City of Punta Gorda, Florida
    Keywords: Engineering ; Boat lock ; flow exchange ; pollutant transport ; Punta Gorda ; Florida
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/692 | 97 | 2020-08-24 03:16:24 | 692 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (74pp.)
    Keywords: Oceanography ; Biology
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/702 | 97 | 2020-08-24 03:19:25 | 702 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: Document has 135 pages.
    Keywords: Oceanography ; Fisheries ; Biology
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/737 | 97 | 2020-08-24 03:20:51 | 737 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (7pp.)
    Keywords: Oceanography ; Biology ; Gulf of Mexico ; Florida ; Copepoda
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/743 | 97 | 2020-08-24 03:22:36 | 743 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (39pp)
    Keywords: Oceanography ; Biology ; Gulf of Mexico ; Florida ; Crustacea:Caridea
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/741 | 97 | 2020-08-24 03:22:01 | 741 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (75pp.)
    Keywords: Oceanography ; Biology ; Gulf of Mexico ; Florida ; Crustacea:Amphipoda ; Shrimp
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/744 | 97 | 2020-08-24 03:22:57 | 744 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (73pp.)
    Keywords: Oceanography ; Biology ; Gulf of Mexico ; Florida ; Osteichthyes:Perciformes ; Sciaenid fishes
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/746 | 97 | 2020-08-24 03:23:42 | 746 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: A total of 213 holothurians, representing 16 species, was collected during Project Hourglass, a28-month systematic survey of ten stations along two transects (6-73 m) off central western Florida.This material, supplemented with 8 1 additional Gulf of Mexico specimens supplied by the FloridaDepartment of Natural Resources, brings the total number of species reported in this paper to 20. Ofthese species, 19 have previously been reported from the Gulf of Mexico. One, Allothyone mexicana,can be considered endemic to the Gulf of Mexico, and another, Thyone crassidisca, was recentlydescribed from material including Hourglass specimens. Systematic accounts, pertinent ecologicaldata and line drawings of taxonomically important skeletal elements are included for each species.Keys to all 60 holothurian species known from the Gulf of Mexico are provided. Range extensionsfor several species are noted. (Document contains 79 pages.)
    Keywords: Oceanography ; Biology ; Gulf of Mexico ; Florida ; Echinodermata:Holothuroidea ; Holothurians
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    Florida Marine Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/752 | 97 | 2020-08-24 03:25:52 | 752 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (139pp.)
    Keywords: Oceanography ; Biology ; Gulf of Mexico ; Florida ; Crustacea:Amphipoda
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    Florida Marine Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/751 | 97 | 2020-08-24 03:25:19 | 751 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (86pp.)
    Keywords: Oceanography ; Biology ; Gulf of Mexico ; Florida ; Sea spider: Pycnogonida
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    Florida Department of Natural Resources, Bureau of Marine Research | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/747 | 97 | 2020-08-24 03:24:02 | 747 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: The genus Synalpheus Bate, 1888, is one of the most diverse and widely distributed generaof caridean shrimps in the world. Often known as snapping shrimps because of the popping soundmade by the major first pereopod when the chela is closed rapidly, members of this genus areimportant components of coral reef and live bottom communities in all tropical and subtropical seas.The Gambarelloides group (a well-defined, homogeneous group within the genus but lackingformal subgeneric status) contains over half the described species of Synalpheus in the Gulf ofMexico and Caribbean. Its many species are distinguished from each other by subtle, and oftenvariable, characters. Accurate inventories of the Gulf fauna have been handicapped by difficulty inseparating these shrimps at the specific level. Distributional data, diagnoses, and references toeach of the 19 species of the group from the Western Atlantic Region are presented in this report.The 11 species known from the Gulf of Mexico are illustrated. Details of specific ecological associations,morphological variation, and life history strategies are also summarized. (Document has 125 pages.)
    Keywords: Oceanography ; Biology ; Gulf of Mexico ; Florida ; Crustacea:Decapoda ; Gambarelloides
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    Florida Marine Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/753 | 97 | 2020-08-24 03:26:12 | 753 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (150pp.)
    Keywords: Oceanography ; Biology ; Gulf of Mexico ; Florida ; Crustacea:Amphipoda
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/769 | 97 | 2020-08-24 03:29:48 | 769 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (26pp.)
    Keywords: Oceanography ; Biology ; Florida ; conference ; red tide
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/770 | 97 | 2020-08-24 03:30:06 | 770 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (20pp.)
    Keywords: Oceanography ; Fisheries ; Biology ; Florida ; gulf of mexico ; population ; survey
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/776 | 97 | 2020-08-24 03:30:42 | 776 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (55pp.)
    Keywords: Law ; Oceanography ; Florida ; shell deposits
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/780 | 97 | 2020-08-24 03:31:57 | 780 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: Document has 35 pages.
    Keywords: Oceanography ; Biology ; Florida ; coastal restoration ; techniques
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/777 | 97 | 2020-08-24 03:30:58 | 777 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: Document has 34 pages.
    Keywords: Oceanography ; Biology ; Florida ; spawning ; macrobrachium ; brackish-freshwater shrimp
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/883 | 97 | 2020-08-24 03:39:23 | 883 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-03
    Description: (Document has 122 pages.)
    Keywords: Oceanography ; Biology ; Florida ; Hutchinson Island ; plankton ; phytoplankton ; zooplankton ; benthic algae ; diel plankton
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/877 | 97 | 2020-08-24 03:37:25 | 877 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-03
    Description: (Document has 31 pages.)
    Keywords: Ecology ; Fisheries ; Oceanography ; Florida ; Atlantic ocean ; Sailfish ; Istiophorus platyerus
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    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/469 | 3 | 2020-08-24 03:07:24 | 469 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-29
    Description: Current plant canopy wind flow models require three aerodynamic parametersto predict the effects of wind on sand transport--the plant drag coefficient, Cd, the leafarea density profile, LAD, and the turbulent eddy transfer coefficient, 6,. The LADand Cd characterize the plant canopy and its effects on air flow and, prior to thisstudy, data on these parameters for dune vegetation did not exist. The purpose of thisstudy was to design and test a methodology for measuring the wind drag coefficient ofcoastal dune plants. The objectives were 1) to measure and record the parametersneeded to calculate Cd, namely, the force, relative velocity and air temperature; 2) tomeasure the leaf area density of sea-oats; 3) to validate the method by measuring thequantities needed to compute the drag coefficient for a right circular data exists; and 4) to explore the Reynolds number dependence of the canopy dragcoefficient. (This document has 76 pages.)
    Description: Masters
    Description: UFL/COEL/92/017
    Keywords: Engineering ; Environment ; sea oats ; Uniola paniculata ; aerodynamic drag ; winds ; coastal vegetation
    Repository Name: AquaDocs
    Type: thesis
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    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/468 | 3 | 2020-08-24 02:57:37 | 468 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-29
    Description: The following report presents wave data collected at two near shore locations off Hollywood Beach, Florida beginning inJanuary 1990 and ending May 1992. The methods used to collect and analyze the data are also presented. Significant waveheight, peak wave period, and peak wave direction are presented in time series plots, and summarized monthly in tables.Appendices include the time series plots, wave roses of each deployment period, an overall wave rose for each site and adiskette of the data in ASCII format. (Document has 68 pages; diskette lacking.)
    Keywords: Oceanography ; Engineering ; waves ; Florida ; Hollywood Beach
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    Florida Marine Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/119 | 3 | 2011-09-29 22:33:10 | 119 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-06-26
    Description: Gulf sturgeon are anadromous. They spend thecooler months (October or November through Marchor April) in estuarine or marine habitats, where theyfeed on benthic organisms such as isopods, amphipods,lancets, molluscs, crabs, grass shrimp, and marineworms (Mason and Clugston, 1993). In the spring, gulfsturgeon return to their natal river, where the sexuallymature sturgeon spawn, and the population spendsthe next 6–8 months there (Odenkirk, 1989; Foster,1993; Clugston et al., 1995; Fox et al., 2000). The conservation plan detailed in this documentwill be used to aid recovery of gulf sturgeon populationsthroughout the state of Florida and could be amodel for other gulf states to use. (106pp.)
    Keywords: Conservation ; Biology ; Gulf Sturgeon ; Acipenser oxyrinchus desotoi ; Florida ; recovery plan
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    Florida Fish and Wildlfie Conservation Commission | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/116 | 3 | 2018-11-05 15:53:15 | 116 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-06-26
    Description: Mantener al público informado sobre los problemas de la contaminación con luz de las playas de anidamiento de tortugas es un paso fundamental para oscurecer las playas de tortugas marinas. Muchas de aquellas personas responsables de esta iluminación no tienen conocimiento del efecto negativo que esto ocasiona y están dispuestos a corregir el problema voluntariamente una vez que son informados. Sinembargo, a menudo es necesaria legislación para un mayor control de la iluminación, y en muchas playas de anidamiento, esta es la única forma de resolver elproblema de contaminación de luz. En este manual seincluyen una guía para iniciar, promocionar e implementarleyes sobre la iluminación artifical de playas, así como un modelo de una ordenanza que puede asistir con este fin.
    Description: Traducción al Español de la Tercera Edición Inglesa, Revisada 2003
    Keywords: Ecology ; Conservation ; Biology ; tortugas marinas ; playas ; anidamiento ; contaminacion de luz
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    Format: application/pdf
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    Florida Marine Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/115 | 3 | 2018-09-09 22:51:38 | 115 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-06-26
    Description: Making the public aware of light-pollution problemson sea turtle nesting beaches is a fundamentalstep towards darkening beaches for sea turtles. Manyof those responsible for errant lighting are unawareof its detrimental effects and are generally willing tocorrect the problem voluntarily once they become aware. Nonetheless, legislation requiring light managementis often needed, and on many nestingbeaches, it may be the only means to completelyresolve light-pollution problems. An outline for initiating,promoting, and implementing beach-lightinglegislation is presented in this manual along with amodel ordinance that can be used to help producelegislative drafts. (84pp.)
    Description: Front cover states: Second Edition, revised 2000 Internal information: Third Edition, Revised 2003 and lists revisions
    Keywords: Conservation ; Biology ; Environment ; sea turtles ; light pollution ; beaches ; nesting
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    Florida Marine Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/114 | 3 | 2018-10-14 23:24:04 | 114 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-06-26
    Description: Management programs that address scarringof seagrasses should be based on an approach thatinvolves (1) education, (2) channel marking,(3) increased enforcement, and (4) limited-motoringzones. Aerial monitoring and photography ofthe managed area are essential in evaluating theeffectiveness of a program. Management programsthat use this multifaceted approach have beeninstituted by a few local governments and at severalstate parks. Initial results of the programsindicate that in some areas seagrass scarring hasbeen reduced but that in other areas emphasis mayneed to be increased on one or more of the componentsof the four-point approach. A statewidemanagement plan is needed to address the mostegregious scarring over large areas that may bedifficult to regulate at the local-government level.
    Description: Sargent, F.J., T.J. Leary, D.W. Crewz, and C.R. Kruer. 1995. Scarring of Florida’s seagrasses: assessment and management options. FMRI Tech. Rep. TR-1. Florida Marine Research Institute, St. Petersburg, Florida. 37 p. plus appendices.
    Keywords: Conservation ; Ecology ; Oceanography ; seagrasses ; Florida ; management
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    Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/122 | 3 | 2018-11-05 15:50:36 | 122 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-06-26
    Description: This report documents the progress made toward theobjectives established in the Strategic Plan revised in1997 for the agencies cooperating in the program. These objectives are expressed as five questions that organized the research on the Florida Bay ecosystem: Ecosystem History What was the Florida Bay ecosystem like 50, 100, and 150 years ago? Question 1—Physical Processes How and at what rates do storms, changing freshwater flows, sea level rise, and local evaporation and precipitation influence circulation and salinity patterns within Florida Bay andexchange between the bay and adjacent waters? Question 2—Nutrient Dynamics What is the relative importance of the influx of external nutrients and of internal nutrient cycling in determining the nutrient budget for Florida Bay? What mechanisms control the sources and sinks of the bay’s nutrients? Question 3—Plankton Blooms What regulates the onset, persistence, and fate of planktonic algal bloomsin Florida Bay? Question 4—Seagrass Ecology What are the causes and mechanisms for the observed changes in the seagrass community of Florida Bay? What is the effect of changing salinity, light, and nutrient regimes on thesecommunities? Question 5—Higher Trophic Levels What is the relationship between environmental and habitat changeand the recruitment, growth, and survivorship of animals in Florida Bay?Each question examines different characteristics of the Florida Bay ecosystem and the relation of these to the geomorphological setting of the bay and to processes linking the bay with adjacent systems and driving change.This report also examines the additional question of what changes have occurred in Florida Bay over the past 150 years.
    Keywords: Ecology ; Conservation ; Planning ; Florida Bay ; physical processes ; nutrients ; plankton ; sea grass ; animals
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    Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/121 | 3 | 2011-09-29 22:33:29 | 121 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-06-26
    Description: (58pp.)
    Description: Series title change begins with no. 10 from Florida Marine Research Institute Technical Report to Fish and Wildlife Research Institute Technical Report.
    Keywords: Conservation ; Biology ; Caloosahatchee River ; Florida ; Florida Manatees ; Trichechus manatus latirostris
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    University of Florida, Coastal and Oceanographic Engineering Department
    In:  http://aquaticcommons.org/id/eprint/470 | 3 | 2020-08-24 03:08:32 | 470 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-29
    Description: With the rapid growth and development of barrier islands, understanding the long-termstability of these islands is an integral part of future coastal planning. The overwash process isthe largest influence on the long-term stability of these islands and thus a correspondingunderstanding is of major importance. A laboratory experiment was undertaken to physicallymodel the wave and current forcing as they pertain to the overwash process. The physical modelwas subjected to various storm conditions common to the occurrence of the overwash.Combinations of wave height, wave period, and overwash depth were tested in an attempt toisolate the significant parameters. Water surface gradients were also applied to observe theirinfluence on the overwash process. Wave height, current, and bed profile measurements weretaken at different locations throughout the tank. In addition, wave height transformationmodeling and mean current prediction were performed and compared to the laboratory results inan attempt to model the overwash process through computer simulations.The experimental results demonstrate that the water surface gradient is the mechanismfor transporting large quantities of sand on to and over barrier islands. In addition, two otherconclusions were drawn about the overwash process: 1) the overwash depth plays an importantrole in determining the overwash velocity and hence the amount of sand deposited on the barrierisland. 2) There seems to exist a correlation between the strength of the return flow and barformation.It was also determined that modeling the wave height transformation during the overwashprocess is possible if the model is expressly written for the overwash process and not for nonoverwashingcases. The method utilized to predict the mean currents during overwash was notable to predict their strength but was able to substantiate the correlation between return flow andbar formation. As a result of overwash, the increased shoreward mass transport and reducedreturn flow in the water column are able to initiate and sustain a shoreward sediment transport.Finally, it was concluded that in all likelihood only "significant" overwash events affect the longtermstability of the barrier islands.
    Description: Masters
    Description: UFL/COEL/92/018
    Keywords: Oceanography ; Engineering ; Earth Sciences ; barrier islands ; overwash ; modeling ; beach erosion ; ocean waves
    Repository Name: AquaDocs
    Type: thesis
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    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/471 | 3 | 2020-08-24 02:58:12 | 471 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-29
    Description: This report is to document the programs my colleague and I developed for computingtime-dependent nearshore hydrographic changes including beach profile responses.The time scale of the model is suitable for storm events to seasonalchanges, currently up to one year period. The model is very stable and is capableof handling complicated topographies including inlets and irregularly-shapedstructures such as curved jetties and breakwaters.The purpose of three-dimensional models is to predict the change of bottomtopography from the spatial distribution of the sediment transport rates, which areevaluated from the nearshore wave and current fields computed point by point insmall areas defined by a horizontal grid placed over the region of interest. Modelsof 3-D beach topography change require much fewer idealizations than do the linemodels. (Document has 43 pages.)
    Keywords: Oceanography ; Engineering ; Earth Sciences ; Coast changes ; models ; nearshore currents
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    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/474 | 3 | 2020-08-24 02:59:04 | 474 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-29
    Description: This data report contains measurements of turbidity obtained near Hollywood,Florida, during the period of January 1990 to April 1992. Data were obtainedwithin one meter of the seabed in depths of 5 m and 10 m. Turbidity was found tovary significantly under natural conditions, with values during storms sometimesexceeding 29 NTU. Tables and plots of turbidity data are presented. (Document contains 77 pages.)
    Description: Florida Sea Grant College Program
    Keywords: Oceanography ; Engineering ; beach nourishment ; Hollywood ; Florida ; turbidity
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    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/477 | 3 | 2020-08-24 02:59:30 | 477 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-30
    Description: This report is the third annual report in a continuing series documenting a field projectwithin the Gulf Islands National Seashore at Perdido Key, Florida. The field project includesthe monitoring of a number of physical parameters related to the evolution of the Perdido Keybeach nourishment project. Approximately 4.1 million m3 of dredge spoil from Pensacola Passwere placed upon approximately 7 km of the Gulf of Mexico beaches and 3 million m3 offshoreof Perdido Key between November, 1989, and October, 1991.Beach profile data describing the evolution of the nourished beach are included, as wellas wave, current, tide, wind, temperature, and rainfall data to describe the forces influencingthe evolution. Data describing the sediment sizes throughout the project area are also included. A brief discussion of the data is included with an emphasis on evolution of the beach andoffshore nourishment. (Document contains 249 pages.)
    Description: Department of the Navy, Southern Division, Naval Facilities Engineering Command
    Keywords: Conservation ; Engineering ; Beach nourishment ; Sediment transport ; Perdido Key ; Florida ; Gulf Islands National Seashore
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    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/479 | 3 | 2020-08-24 03:00:10 | 479 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-30
    Description: The objectives of this study were 1) to determine the maximum structure-inducedlocal sediment scour depths for the proposed bridge piers for the Merrill BarberBridge over Indian River on.State Road 60 in Indian River County, Florida and 2) todetermine the feasibility of predicting equilibrium local scour depths near complexmultiple pile bridge piers from bottom shear stresses on the prescoured bed. Aseries of hydrodynamic tests were conducted in a laboratory flume (100 ft long x 8 ftwide x 2 ft deep) where flow velocities near model piers were measured with a twocomponent constant temperature anemometer at a height of 3 mm above the bed. Bottomshear stresses were then estimated from the flow measurements. The piers (which are1/15 scale models of proposed Merrill Barber Bridge piers) consisted of thirtysixsquare piles (3 columns of 12) and a pile cap that was positioned at differentelevations above the bottom. Two different pile cap shapes were also considered. Asimple relationship between the prescoured bottom shear stress and the equilibriumlocal scour depth was postulated.Sediment scour tests were then conducted in the same flume with the samemodels. The average duration of these tests was 28 hours. Scour depths weremeasured periodically throughout these tests using an acoustic transponder. Thescour measurements were used 1) to establish the maximum scour depths for the MerrillBarber Bridge piers and 2) to calibrate and test the scour-shear stress relationship.Even though the range of conditions tested was somewhat limited, the approach appearspromising and should be pursued further. A number of interesting findings were maderegarding the rate at which scour occurs in these complex structures. (Document contains 134 pages.)
    Keywords: Engineering ; Earth Sciences ; scouring ; bridges ; Florida ; Merril P Barber Bridge
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    University of Florida, Coastal and Oceanographic Engineering Department | Gainsville, FL
    In:  http://aquaticcommons.org/id/eprint/540 | 3 | 2020-08-24 03:04:56 | 540 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-30
    Description: This report is the second annual report in a continuing series documenting a fieldproject within the Gulf Islands National Seashore at Perdido Key, Florida. The field projectincludes the monitoring of a number of physical parameters related to the evolution of thePerdido Key beach nourishment project. Approximately 4.1 million m3 of dredge spoilfrom Pensacola Pass were placed upon approximately 7 km of the Gulf of Mexico beachesof Perdido Key between November, 1989, and September, 1990.Beach profile data describing the evolution of the nourished beach are included, aswell as wave, current, tide, wind, temperature, and rainfall data to describe the forces influencingthe evolution. Data describing the sediment sizes throughout the project areaare also included. A brief discussion of the data is included; a more detailed analysis andinterpretation will be presented in the lead author's Ph.D. dissertation. (313 pp.)
    Description: Submitted to: Department of the Navy Southern Division Naval Facilities Engineering Command Charleston, SC 29411-0068
    Keywords: Conservation ; Oceanography ; Engineering ; Beach nourishment ; Sediment transport ; Shoreline response
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/696 | 97 | 2020-08-24 03:17:30 | 696 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: Document has 17 pages.
    Keywords: Oceanography ; Biology
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    Florida Marine Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/700 | 97 | 2020-08-24 03:18:45 | 700 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: Document has 139 pages.
    Keywords: Oceanography ; Fisheries ; Biology
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/690 | 97 | 2020-08-24 03:15:40 | 690 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (47pp.)
    Keywords: Oceanography ; Biology
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/693 | 97 | 2020-08-24 03:16:40 | 693 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (251pp.)
    Keywords: Oceanography ; Biology
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/698 | 97 | 2020-08-24 03:18:07 | 698 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: Document has 11 pages.
    Keywords: Oceanography ; Biology
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/701 | 97 | 2020-08-24 03:19:02 | 701 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: Document has 135 pages.
    Keywords: Oceanography ; Fisheries ; Biology
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/707 | 97 | 2020-08-24 03:20:08 | 707 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (134pp.)
    Keywords: Oceanography ; Biology
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/742 | 97 | 2020-08-24 03:22:17 | 742 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: 122pp.)
    Keywords: Oceanography ; Biology ; Gulf of Mexico ; Florida ; Crustacea:Isopoda
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    Florida Marine Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/749 | 97 | 2020-08-24 03:24:41 | 749 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (31pp.)
    Keywords: Oceanography ; Biology ; Gulf of Mexico ; Florida ; Crustacea:Amphipoda
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/750 | 97 | 2020-08-24 03:25:00 | 750 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (207pp.)
    Keywords: Oceanography ; Fisheries ; Biology ; Gulf of Mexico ; Florida ; Seabass ; Pisces: Serranidae
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/754 | 97 | 2020-08-24 03:27:18 | 754 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (32pp.)
    Keywords: Oceanography ; Fisheries ; Biology ; Gulf of Mexico ; Florida ; Choctawhatchee Bay ; fishing survey
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/740 | 97 | 2020-08-24 03:21:41 | 740 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (102pp.)
    Keywords: Oceanography ; Biology ; Gulf of Mexico ; Florida ; Crustacea:Decapoda ; Shrimp
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/738 | 97 | 2020-08-24 03:21:07 | 738 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (11pp.)
    Keywords: Oceanography ; Biology ; Gulf of Mexico ; Florida ; Copepoda
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/745 | 97 | 2020-08-24 03:23:14 | 745 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (76pp.)
    Keywords: Oceanography ; Biology ; Gulf of Mexico ; Florida ; Pisces:Triglidae ; Searobin
    Repository Name: AquaDocs
    Type: monograph
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    Florida Department of Natural Resources, Bureau of Marine Research | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/748 | 97 | 2020-08-24 03:24:22 | 748 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (156pp.)
    Keywords: Oceanography ; Biology ; Gulf of Mexico ; Florida ; Crustacea:Isopoda
    Repository Name: AquaDocs
    Type: monograph
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/768 | 97 | 2020-08-24 03:29:31 | 768 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (50pp.)
    Keywords: Oceanography ; Biology ; bibliography ; Sirenia ; Sea cow ; Manatee
    Repository Name: AquaDocs
    Type: monograph
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/779 | 97 | 2020-08-24 03:31:37 | 779 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (70pp.)
    Description: Document has 70 pages.
    Keywords: Oceanography ; Biology ; Florida ; Gulf of Mexico ; Caribbean ; checklist ; bibliography ; polychaetes
    Repository Name: AquaDocs
    Type: monograph
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/778 | 97 | 2020-08-24 03:31:15 | 778 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: Document has 43 pages.
    Keywords: Oceanography ; Fisheries ; Biology ; Florida ; landings ; stone crab ; Menippe mercenaria
    Repository Name: AquaDocs
    Type: monograph
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/786 | 97 | 2020-08-24 03:33:53 | 786 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-03
    Description: Document has 23 pages.
    Keywords: Oceanography ; Biology ; Florida ; Hutchinson Island ; Marine turtle ; nesting
    Repository Name: AquaDocs
    Type: monograph
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/884 | 97 | 2020-08-24 03:39:48 | 884 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-03
    Description: (Document has 7 pages.)
    Description: Document has 7 pages.
    Keywords: Oceanography ; Environment ; Florida ; Gulf of Mexico ; fish attractants ; artificial reefs
    Repository Name: AquaDocs
    Type: monograph
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/882 | 97 | 2011-09-29 21:27:36 | 882 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-03
    Description: Henderson, George E., Editor. 1978. Proceedings of the Florida and InterregionalConference on Sea Turtles, 24-25 July 1976, Jensen Beach, Florida. Fla. Mar. Res.Publ. No. 33.66 pp. The Florida and Interregional Conference on Sea Turtles providedan opportunity for researchers and managers to review and discuss all aspects of turtleconservation. Papers presented gave data and observations in three main areas ofsea turtle research: hatchery, rearing, and physiology; population dynamics; andmanagement. These Proceedings offer a compilation of much current research and insightsinto sea turtle research and management requirements. (Document has 74 pages.)
    Keywords: Oceanography ; Biology ; Florida ; Sea turtles ; proceedings
    Repository Name: AquaDocs
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    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/467 | 3 | 2020-08-24 02:57:18 | 467 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-29
    Description: Part I. Relationships between the rate of bed fluidization and the rate of wave energy dissipation, by Jingzhi Feng and Ashish J. Mehta and Part II. In-situ rheometry for determining the dynamic response of bed, by David J.A. Williams and P. Rhodri Williams.A series of preliminary laboratory flume experiments were carried out to examine the time-dependentbehavior of a cohesive soil bed subjected to progressive, monochromatic waves. The bed was an aqueous,50/50 (by weight) mixture of a kaolinite and an attapulgite placed in a plexiglass trench. The nominal bedthickness was 16 cm with density ranging from 1170 to 1380 kg/m 3, and water above was 16 to 20 cmdeep. Waves of design height ranging from 2 to 8 cm and a nominal frequency of 1 Hz were run fordurations up to 2970 min. Part I of this report describes experiments meant to examine the rate at whichthe bed became fluidized, and its relation to the rate of wave energy dissipation. Part II gives results onin-situ rheometry used to track the associated changes in bed rigidity.Temporal and spatial changes of the effective stress were measured during the course of wave action,and from these changes the bed fluidization rate was calculated. A wave-mud interaction model developedin a companion study was employed to calculate the rate of wave energy dissipation. The dependence ofthe rate of fluidization on the rate of energy dissipation was then explored.Fluidization, which seemingly proceeded down from the bed surface, occurred as a result of the lossof structural integrity of the soil matrix through a buildup of the excess pore pressure and the associated loss of effective stress. The rate of fluidization was typically greater at the beginning of wave action andapparently approached zero with time. This trend coincided with the approach of the rate of energydissipation to a constant value. In general it was also observed that, for a given wave frequency, the largerthe wave height the faster the rate of fluidization and thicker the fluid mud layer formed. On the otherhand, increasing the time of bed consolidation prior to wave action decreased the fluidization rate due togreater bed rigidity. Upon cessation of wave action structural recovery followed.Dynamic rigidity was measured by specially designed, in situ shearometers placed in the bed atappropriate elevations to determine the time-dependence of the storage and loss moduli, G' and G", ofthe viscoelastic clay mixture under 1 Hz waves. As the inter-particle bonds of the space-filling, bedmaterial matrix weakened, the shear propagation velocity decreased measurably. Consequently, G'decreased and G" increased as a transition from dynamically more elastic to more viscous responseoccurred. These preliminary experiments have demonstrated the validity of the particular rheometrictechnique used, and the critical need for synchronous, in-situ measurements of pore pressures and modulicharacterizing bed rheology in studies on mud fluidization.This study was supported by WES contract DACW39-90-K-0010.(This document contains 151 pages.)
    Keywords: Engineering ; Cohesive sediments ; Resuspension ; Energy dissipation ; Rheology ; Fluidization ; Rheometry ; Fluid mud ; Water waves ; Pore pressures
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    Type: monograph
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    University of Florida, Coastal and Oceanographic Engineering Department
    In:  http://aquaticcommons.org/id/eprint/476 | 3 | 2020-08-24 03:09:33 | 476 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-29
    Description: Turbidity is a measure of the clarity of water. Turbidity depends upon thescattering and absorption of light by suspended particles. The focus of this study wasto obtain quantitative measurements of turbidity in the nearshore zone, along withmeasurements of associated wave parameters and currents occurring naturally andduring a beach nourishment project. The objectives were to make quantitative andqualitative comparisons between natural events and those induced by the dredge andfill operations, as well as assess the long term effects of the nourishment, uponturbidity.In-situ measurements of turbidity and wave climate were obtained at two shorenormal sites off the coast of Hollywood, Florida, from January, 1990 to April, 1992.The beaches adjacent to the communities of Hallandale and Hollywood wererenourished during the summer of 1991. Thirty minute in-situ observations wererecorded in burst mode every four hours at a frequency of four hertz. Analysis of thedata resulted in descriptions of the wave climate as well as statistics of turbidity for each observation.
    Description: Masters
    Description: UFL/COEL/93/004
    Keywords: Conservation ; Engineering ; turbidity ; beach nourishment ; Hollywood ; Florida
    Repository Name: AquaDocs
    Type: thesis
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    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/497 | 3 | 2020-08-24 03:02:42 | 497 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-30
    Description: The mechanism by which fluid mud is formed by water wave motion over coastal andestuarine cohesive soil beds is of evident interest in understanding and interpreting themicrofabric of flow-deposited fine sediments in shallow waters, and hence the erodibilityof muddy beds due to hydrodynamic forcing. This study investigated water wave-inducedfluidization of cohesive soil beds composed of a 50/50 (by weight) mixture of a commercialattapulgite and a kaolinite in a laboratory flume. Temporal and spatial changes of theeffective stress were measured during the course of wave action, and from these changesthe bed fluidization rate was calculated. A previously developed hydrodynamic wave-mudinteraction model of the two-layered water-mud system was employed to study the natureand the degree of wave dissipation, in terms of energy dissipation rate, during the bed fluidizationprocess. By evaluating the mud rheological properties separately, a mud viscositymodel was developed, which was then used in conjunction with the wave-mud interactionmodel to obtain an effective sheared thickness of the bed resulting from wave action. Thisthickness, considered to be a representative of the fluidized mud thickness, was comparedwith the latter obtained from pressure measurements. Also, through this wave-mud modelthe relationship between the rate of fluidization and the rate of wave energy dissipationduring fluidization was examined. In general, for a given wave frequency, a larger wave fluidized the bed at a faster rateand to a greater depth than a smaller one. Furthermore, increased bed consolidation timedecreased the rate of fluidization due to increased mud rigidity. The rate of bed fluidizationwas typically greater at the beginning of wave action and decreased with time. Eventuallythis rate approached zero, while in some cases the wave energy dissipation rate approached aconstant value, which increased with wave height. As the fluidization rate approached zero,there appeared to occur an equilibrium value of the bed elevation, and hence a fluid mudthickness, for a given wave condition. During the fluidization process the bed apparentlylost its structural integrity by loss of the effective stress through a build-up of the excesspore water pressure. After wave action ceased, the bed structure exhibited recovery bydissipation of the excess pore water pressure.Further studies will be required in which the hydrodynamic model must be improved viaa more realistic description of mud rheology and relaxation of the shallow water assumption,and better pressure data must be obtained than in the present study. Nevertheless, thisinvestigation has been instructive in demonstrating relationships between the degree of mudfluidization, wave energy dissipation and bed consolidation time, and thus offers insight intoan important mechanism by which coastal and estuarine muds are eroded by wave action. (Document has125 pages.)
    Description: Thesis, M.S., Engineering
    Keywords: Oceanography ; Engineering ; Earth Sciences ; Muds ; Rheology ; Waves
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    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/543 | 3 | 2020-08-24 03:06:11 | 543 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Publication Date: 2021-06-30
    Description: This thesis examines the historical shoreline response to inlet modifications and sealevel rise. Inlet modifications are considered to be the geographic stabilization and training(through the use of structures) of natural inlets and the creation and further modification ofartificial inlets. Shoreline response to natural and artificial processes must be understood inorder to predict the performance of the coastline. The tendency for creating and modifyinginlets increases as industry and population growth demands. Sea level rise is a natural processwhich cannot be controlled at this time. Current theoretical approaches to predictingshoreline response indicate that sea level rise and inlet modifications can cause substantialshoreline impact. Florida, with roughly a century of shoreline position and relative sea leveldata, provides a basis for examining past trends and comparing them with theory.The shoreline of Florida was found to be accreting with the greatest accretion alongthe east coast. Shoreline responses within the boundaries of the erosional influence of inletsdue to their creation and/or modification were examined for 19 inlets around the coast ofFlorida. The differences in the shoreline response before and after the initial modification ofeach inlet show the erosional strain that inlets apply on the nearby shoreline. The effect onshoreline response due to the human intervention (unnatural processes) of modifying inletswas isolated and examined. The shoreline response due to this "human intervention" was erosional, thereby showing the negative impact that modified inlets have on shorelines. Thisinduced erosion is responsible for the loss of roughly 21.6 million cubic yards of sand from theshoreline that is within the erosional influence of Florida's east coast inlets. Combining theshoreline changes due only to natural processes with sea level rise data allows for comparisonwith the commonly accepted Bruun Rule for shoreline response as a result of a changingsea level. This comparison and the effects of including a lag time between a rise in sea leveland a change in shoreline along the east coast of Florida during the last century show noagreement with the Bruun Rule and no correlation with a specific lag time. (153 pp.)
    Description: College of Engineering, M.S. Thesis
    Keywords: Oceanography ; Engineering ; Planning ; Sea level rise ; Inlets ; Florida
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    Type: monograph
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/691 | 97 | 2020-08-24 03:16:03 | 691 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (119pp.)
    Keywords: Oceanography ; Biology
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    Type: monograph
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