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  • Florida  (29)
  • Chemistry  (24)
  • Atmospheric Sciences  (22)
  • GEOPHYSICS
  • Polymer and Materials Science
  • SPACE VEHICLES
  • STRUCTURAL MECHANICS
  • 2020-2022  (72)
  • 1990-1994
  • 1970-1974
  • 2021  (72)
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  • 1
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    Elemental signatures in otoliths of larval walleye pollock (Theragra chalcogramma) from the northeast Pacific Ocean (2021)
    In:  http://aquaticcommons.org/id/eprint/15087 | 403 | 2014-05-28 03:22:35 | 15087 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-07-02
    Description: The population structure of walleye pollock (Theragrachalcogramma) in the northeastern Pacific Ocean remains unknown. We examined elemental signatures in the otoliths of larval and juvenile pollock from locations in the BeringSea and Gulf of Alaska to determine if there were significant geographic variations in otolith compositionthat may be used as natural tags of population affinities. Otoliths were assayed by using both electron probemicroanalysis (EPMA) and laser ablation inductively coupled plasma mass spectrometry (ICP-MS). Elements measured at the nucleus of otoliths by EPMA and laser ablation ICP-MS differed significantly among locations. However, geographicgroupings identified by a multivariate statistical approach from EPMA and ICP-MS were dissimilar, indicating that the elements assayed by each technique were controlled by separate depositional processes within the endolymph. Elemental profiles across the pollock otoliths were generally consistent at distances up to 100 μm from the nucleus. At distances beyond 100 μm, profiles varied significantly but were remarkably consistent among individuals collected at each location. These data may indicate that larvae from various spawning locations are encountering water masses with differing physicochemicalproperties through their larval lives, and at approximately the same time. Although our results are promising, we require a better understanding of the mechanisms controlling otolith chemistry before it will be possibleto reconstruct dispersal pathways of larval pollock based on probe-based analyses of otolith geochemistry. Elemental signatures in otoliths of pollock may allow for the delineation of fine-scale population structure in pollock that has yet to be consistently revealed by using population genetic approaches.
    Keywords: Chemistry ; Fisheries
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 604-616
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  • 2
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    Effects of live-bait shrimp trawling on seagrass beds and fish bycatch in Tampa Bay, Florida (2021)
    In:  http://aquaticcommons.org/id/eprint/386 | 3 | 2020-08-24 03:10:54 | 386 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-29
    Description: The use of live shrimp for bait inrecreational fishing has resulted ina controversial fishery for shrimp inFlorida. In this fishery, night collectionsare conducted over seagrassbeds with roller beam trawls to capturelive shrimp, primarily pinkshrimp, Penaeus duorarum. Theseshrimp are culled from the catch onsorting tables and placed in onboardaerated “live” wells. Beds ofturtlegrass, Thalassia testudinum,a species that has highest growthrates and biomass during summerand lowest during the winter (Fonsecaet al., 1996) are predominantareas for live-bait shrimp trawling(Tabb and Kenny, 1969). Our study objectives were 1) todetermine effects of a roller beamtrawl on turtlegrass biomass andmorphometrics during intensive(up to 18 trawls over a turtlegrassbed), short-term (3-hour duration)use and 2) to examine the mortalityof bycatch finfish following captureby a trawl.
    Keywords: Fisheries ; Environment ; Pink shrimp ; Penaeus duorarum ; turtlegrass ; Thalassia testudinum ; Florida ; fisheries ; ecology
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 193-199
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  • 3
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    Prevalence and cultivation of a Chelonid herpesvirus associated with Fibropapillomas of the green turtle, Chelonia mydas, and the loggerhead turtle, Caretta caretta, in Florida. (2021)
    Florida Cooperative Fish and Wildlife Research Unit , University of Florida | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/1092 | 3 | 2011-09-29 21:09:23 | 1092 | Florida Cooperative Fish and Wildlife Research Unit
    Details
    Publication Date: 2021-07-05
    Description: Fibropapillomatosis (FP) is a growing threat to the survival of green turtle,Chelonia mydas, populations worldwide and has been shown to be affectingloggerhead, Caretta caretta, and olive ridley, Lepidochelys olivacea, populations aswell. Transmission studies in captivity carried out by this laboratory have demonstratedthat FP in green turtles is caused by an infectious subcellular agent. (Herbst, et al,1995), (Herbst et ai, 1996a). We have demonstrated a new Chelonid herpesvirus inexperimentally induced and spontaneous fibropapillomas of green turtles using electronmicroscopic,molecular, and serological techniques (Jacobson et ai, 1991), (Herbst, etai, 1995), (Herbst, et ai, 1996b), (Lackovich, et al 1998a), (Herbst, et ai, 1998), (Garber,et al 1998). Recent studies by others have confirmed our early characterization of thisvirus as a member of the Alphaherpesvirinae subfamily (Quackenbush, et al, 1998,Herbst, et al, 1996b, Garber, et ai, 1998).Although this herpesvirus is considered a candidate for the etiology of FP, it hasnot yet been cultivated in vitro. Fulfillment of Koch's postulates through a controlledtransmission study using cultured herpesvirus would test its role as the etiologic agentof FP. These studies were initiated to provide previously unavailable information aboutthe prevalence of this virus in tumors and skin of green and loggerhead turtles in Floridaand to attempt to cultivate it in vitro. (13 page document)
    Description: Research Work Order no. 161
    Keywords: Health ; Biology ; Green turtle ; Chelonia mydas ; fibropapillomatosis ; diseases ; Florida ; loggerhead turtle ; Caretta caretta ; marine turtle
    Repository Name: AquaDocs
    Type: monograph
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  • 4
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    International trade in live, ornamental "fish" in the US & Florida (2021)
    Florida Sea Grant College Program | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/2058 | 3 | 2011-09-29 19:44:30 | 2058 | Florida Sea Grant College Program
    Details
    Publication Date: 2021-07-11
    Description: The importance of international markets as a source of live, ornamental “fish” supply is growing dueto more stringent wild-harvest regulations in Florida. In addition, foreign markets are increasing inimportance as a source of demand for Florida purveyors of live, ornamental “fish”. Florida plays animportant role in this growing international market. Trends in imports and exports of live,ornamental “fish” are described for two primary data sets: U.S. Customs and U.S. Fish and WildlifeService. These trends are described primarily for the 1994-98 period for Florida and the UnitedStates. Florida imports and exports are described for the two major ports: Miami and Tampa. Themost important trading countries are also described. This information will help Florida purveyors oflive, ornamental “fish” better understand the international markets upon which they have becomemore dependent. (PDF has 18 pages)
    Keywords: Fisheries ; Aquaculture ; Florida ; Live ornamental fish ; international trade ; exports ; imports
    Repository Name: AquaDocs
    Type: monograph
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  • 5
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    Effect of analytical conditions in wavelength dispersive electron microprobe analysis on the measurement of strontium-to-calcium (Sr/Ca) ratios in otoliths of anadromous salmonids (2021)
    In:  http://aquaticcommons.org/id/eprint/15161 | 403 | 2014-05-29 07:19:00 | 15161 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-07-03
    Description: The use of strontium-to-calcium (Sr/Ca) ratios in otoliths is becoming a standard method to describe life history type and the chronology of migrations between freshwater and seawater habitats in teleosts (e.g. Kalish, 1990; Radtke et al., 1990; Secor, 1992; Rieman et al., 1994; Radtke, 1995; Limburg, 1995; Tzeng et al. 1997; Volk et al., 2000; Zimmerman, 2000; Zimmerman and Reeves, 2000, 2002). This method provides critical information concerning the relationship and ecology of species exhibiting phenotypic variation in migratory behavior (Kalish, 1990; Secor, 1999).Methods and procedures, however, vary among laboratories because a standard method or protocol for measurement ofSr in otoliths does not exist. In this note, we examine the variations in analytical conditions in an effort to increase precision of Sr/Ca measurements. From these findings we argue that precision can be maximized withhigher beam current (although there is specimen damage) than previously recommended by Gunn et al. (1992).
    Keywords: Chemistry ; Fisheries
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 712-718
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  • 6
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    Origin of immature loggerhead sea turtles (Caretta caretta) at Hutchinson Island, Florida: evidence from mtDNA markers (2021)
    In:  http://aquaticcommons.org/id/eprint/15236 | 403 | 2014-06-01 18:54:03 | 15236 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-07-05
    Description: Loggerhead sea turtles (Caretta caretta) are migratory, long-lived, and slow maturing. They are difficult to study because they are seen rarely and their habitats range over vast stretches of the ocean. Movements of immature turtles between pelagic and coastal developmental habitats are particularly difficult to investigate because of inadequate tagging technologies and the difficulty in capturing significant numbers of turtles at sea. However, genetic markers found in mitochondrial DNA (mtDNA) provide a basis for predicting the origin of juvenile turtles in developmental habitats. Mixed stock analysis was used to determine which nesting populations were contributing individuals to a foraging aggregation of immature loggerhead turtles (mean 63.3 cm straight carapace length [SCL]) captured in coastal waters off Hutchinson Island, Florida. The results indicated that at least three different western Atlantic loggerhead sea turtle subpopulations contribute to this group: south Florida (69%), Mexico (20%), and northeast Florida-North Carolina (10%). The conservation and management of these immature sea turtles is complicated by their multinational genetic demographics.
    Keywords: Biology ; Chemistry ; Fisheries ; Management
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 624-631
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  • 7
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    Introduction (2021)
    In:  http://aquaticcommons.org/id/eprint/15452 | 8 | 2014-11-06 01:07:24 | 15452
    Details
    Publication Date: 2021-07-07
    Description: In 1984, a workshop was held on "climatic variability of the eastern North Pacific and western North America." From it has emerged an annual series of workshops held each spring at the Asilomar Conference Center, Monterey Peninsula, California. These annual gatherings have come to be called PACLIM (Pacific Climate) Workshops, reflecting broad interests in the climatologies associated with the Pacific Ocean. Participants in the six workshops that have convened since 1984 have included atmospheric scientists, hydrologists, geologists, glaciologists, oceanographers, limnologists, and both marine and terrestrial biologists.
    Keywords: Atmospheric Sciences ; Earth Sciences ; Oceanography ; PACLIM
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 1-4
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  • 8
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    Meteorological and hydrologic studies in the Alaskan Arctic in support of long-term ecological research (2021)
    In:  http://aquaticcommons.org/id/eprint/14470 | 8 | 2014-02-14 00:30:33 | 14470
    Details
    Publication Date: 2021-06-25
    Description: Long-term hydrologic studies in the Arctic simply do not exist. Although the Arctic has been identified as an area that is extremely sensitive to climate change, continuous scientific research has been limited to the past seven years. Earlier research was spotty, of short duration, and directed at only one or two hydrologic elements. Immediate future research needs to encompass all the major hydrologic elements, including winter processes, and needs to address the problem of scaling from small to larger areas in hydrologic models. Also, an international program of cooperation between northern countries is needed to build a greater scientific base for monitoring and identifying potential changes wrought by the climate.
    Keywords: Atmospheric Sciences ; Ecology ; Limnology ; PACLIM ; hydrology
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 13-21
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  • 9
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    An assessment of chemical contaminants detected in passive water samplers deployed in the St. Thomas East End Reserves (STEER) (2021)
    NOAA/National Centers for Coastal Ocean Science | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/14678 | 403 | 2014-02-24 20:59:15 | 14678 | United States National Ocean Service
    Details
    Publication Date: 2021-07-01
    Description: This report is the second in a series from a project to assess land-based sources of pollution (LBSP) and effects in the St. Thomas East End Reserves (STEER) in St. Thomas, USVI, and is the result of a collaborative effort between NOAA’s National Centers for Coastal Ocean Science, the USVI Department of Planning and Natural Resources, the University of the Virgin Islands, and The Nature Conservancy.Passive water samplers (POCIS) were deployed in the STEER in February 2012. Developed by the US Geological Survey(USGS) as a tool to detect the presence of water solublecontaminants in the environment, POCIS samplers were deployed in the STEER at five locations. In addition to the February 2012 deployment, the results from an earlier POCIS deployment in May 2010 in Turpentine Gut, a perennial freshwater stream which drains to the STEER, are also reported.A total of 26 stormwater contaminants were detected at least once during the February 2012 deployment in the STEER. Detections were high enough to estimate ambient water concentrations for nine contaminants using USGS sampling rate values. From the May 2010 deployment in Turpentine Gut, 31 stormwater contaminants were detected, and ambient water concentrations could be estimated for 17 compounds.Ambient water concentrations were estimated for a numberof contaminants including the detergent/surfactant metabolite 4-tert-octylphenol, phthalate ester plasticizers DEHP and DEP, bromoform, personal care products including menthol, indole, n,n-diethyltoluamide (DEET), along with the animal/plant sterol cholesterol, and the plant sterol beta-sitosterol. Only DEHP appeared to have exceeded a water quality guideline for the protection of aquatic organisms.
    Keywords: Chemistry ; Environment ; Pollution
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 22
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  • 10
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    An assessment of chemical contaminants, toxicity and benthic infauna in sediments from the St. Thomas East End Reserves (STEER) (2021)
    NOAA/National Centers for Coastal Ocean Science | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/14679 | 403 | 2014-02-24 19:16:48 | 14679 | United States National Ocean Service
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    Publication Date: 2021-07-01
    Description: This report contains a chemical and biological characterization of sediments from the St. Thomas East End Reserves (STEER) in St. Thomas, U.S. Virgin Islands (USVI). The STEER Management Plan (published in 2011) identified chemical contaminants and habitat loss as high or very high threats and called for a characterization of chemical contaminants as well as an assessment of their effects on natural resources. The baseline information contained in this report on chemical contaminants, toxicity and benthic infaunal community composition can be used to assess current conditions, as well as the efficacy of future restoration activities. In this phase of the project, 185 chemical contaminants, including a number of organic (e.g., hydrocarbons and pesticides) and inorganic (e.g., metals) compounds, were analyzed from 24 sites in the STEER. Sediments were also analyzed using a series of toxicity bioassays, including amphipod mortality, sea urchin fertilization impairment, and the cytochrome P450 Human Reporter Gene System (HRGS), along with a characterization of the benthic infaunal community. Higher levels of chemical contaminants were found in Mangrove Lagoon and Benner Bay in the western portion of the study area than in the eastern area. The concentrations of polychlorinated biphenyls (PCBs), DDT (dichlorodiphenyltrichloroethane), chlordane, zinc, copper, lead and mercury were above a NOAA sediment quality guideline at one or more sites, indicating impacts may be present in more sensitive species or life stages in the benthic environment. Copper at one site in Benner Bay, however, was above a NOAA guideline indicating that effects on benthic organisms were likely. The antifoulant boat hull ingredient tributyltin, or TBT, was found at the third highest concentration in the history of NOAA’s National Status and Trends (NS&T) Program, which monitors the Nation’s coastal and estuarine waters for chemical contaminants and bioeffects. Unfortunately, there do not appear to be any established sediment quality guidelines for TBT. Results of the bioassays indicated significant sediment toxicity in Mangrove Lagoon and Benner Bay using multiple tests. The benthic infaunal communities in Mangrove Lagoon and Benner Bay appeared severely diminished.
    Keywords: Chemistry ; Environment ; Pollution
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 70
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