• 1976 step in the Pacific climate: forty environmental changes between 1968-1975 and 1977-1984

      Ebbesmeyer, Curtis C.; Cayan, Daniel R.; McLain, Douglas R.; Nichols, Frederic H.; Peterson, David H.; Redmond, Kelly T. (1991)
      Examination of 40 time series of multidisciplinary environmental variables from the Pacific Ocean and the Americas, collected in 1968 to 1984, demonstrated the remarkable consistency of a major climate-related, step-like change in 1976. To combine the 40 variables (e.g., air and water temperatures, Southern Oscillation, chlorophyll, geese, salmon, crabs, glaciers, atmospheric dust, coral, carbon dioxide, winds, ice cover, Bering Strait transport) into a single time series, standard variants of individual annual values (subtracting the mean and dividing by a standard deviation) were averaged. Analysis of the resulting time series showed that the single step in 1976, separating the 1968-1975 period from the 1977-1984 period, accounted for 89% of variance within the composite time series. Apparently, one of the Earth's large ecosystems occasionally undergoes large abrupt shifts.
    • 1979 Ecological study of fishes and the water quality characteristics of Florida Bay, Everglades National Park, Florida

      Schmidt, Thomas W. (NOAA/National Ocean Service/National Centers for Coastal Ocean ScienceSilver Spring, MD, 2002)
      Fish collections under varying ecological conditions were made by trawling and seining, monthly and quarterly in depths of <1 m to depths of 3 m of the Florida Bay portion of Everglades National Park, Florida. From May 1973 through September 1976, a total of 182,530 fishes representing 128 species and 50 families were taken at 27 stations. An additional 21 species were identified from sportfish-creel surveys and supplemental observations. Most of the species collected were juveniles of species that occur as adults in the Florida Bay creel census survey, or were small species that were seasonal residents.Marked temporal and spatial abundance of the catches was observed. The greatest numbers and biomass of the fishes occurred in the wet season (summer/fall), whereas lowest numbers and biomass appeared during the dry season (winter/spring) The greatest abundance and diversityof fishes was found in western Florida Bay followed by eastern and central Bay regions respectively.Overall, five species comprised 75% of the numerical total while eleven species made up 75% of the total biomass. Collections were dominated numerically by anchovies (Engraulidae), especially Anchoa mitchilli, in western Florida Bay. Mojarras (Gerridae), mostly silver jennyEucinostomus gula, and porgies (Sparidae), especially pinfish Lagodon rhomboides, dominated numerically in central and eastern portions of the Bay, respectively.Except for salinity, other measured physico-chemical parameters (water temperature, pH, dissolved oxygen, and turbidity) showed no variation beyond ranges considered normal for shallow, tropical marine environments. Salinity varied from 0 to 66 ppt near the mainland. Nearshore hypersaline conditions (>45 ppt) persisted for nearly 2 years during the 1974 - 1975 severe drought period. Significant reductions in fish abundance/diversity were observed in relation to hypersaline conditions.Bay-wide macrobenthic communities were mapped (presence/absence) and were primarily comprised of turtle grass (Thalassia), shoalgrass [(Diplanthera = (Halodule)], and/or green algae Penicillus. Seasonal dieoff of seagrasses was observed in north-central Florida Bay. (PDF contains 107 pages)
    • 1983 Biscayne Bay hydrocarbon study: final report

      Corcoran, Eugene F.; Brown, Melvin S.; Baddour, Frederick R.; Chasens , Steven A.; Freay, Ana D. (NOAA/National Ocean ServiceSilver Spring, MD, 2005-02)
      A two year, comprehensive, quantitative investigation was conducted to analyze and identify the spatial distribution of petrogenic and biogenic hydrocarbons in sediments, surface waters, fish and shellfish of Biscayne Bay, Florida. The goal for the first year of the project was to establish baseline information to support oil spill impact assessment and clean-up. One hundred fifty-five sediment and eleven biota samples were collected. The areas sampled included the Miami River, Intracoastal Waterway, tidal flats, access canals and environmentally sensitive shorelines. The second year of the study centered on areas exhibiting petroleum contamination. These areas included the Miami River, Little River, Goulds Canal, Black Creek and Military Canal. Surface and subsurface sediment, biota and surface water were collected. Sample collection, analyses, and data handling for the two year project were conducted so that all information was court-competent and scientifically accurate. Chain of custody was maintained for all samples. Total hydrocarbon content of surface sediments ranged from below detection limits to a high of 2663.44 pg/g. Several sample stations contained petroleum contamination. The majority of biota samples exhibited hydrocarbon concentrations and characteristics that indicated little, if any, petroleum contamination. Surface water samples ranged from 0.78 to 64.47 μg/L and several samples contained petroleum hydrocarbons. Our results indicate several areas of petroleum contamination. These areas are characterized by industrial complexes, port facilities, marinas, major boating routes and many of the major tributaries emptying into Biscayne Bay.
    • 1986 Columbia River spring dip-net tribal subsistence fishery

      Schaller, Howard A. (Columbia River Inter-Tribal Fish CommissionPortland, OR, 1987-05)
    • 1987 ecosystem view of management research in the Myakka River: review of Phase I and Phase II reports

      Browder, Joan A. (NOAA/National Centers for Coastal Ocean ScienceMiami, FL, 2006-10)
      This memorandum has four parts. The first is a review and partial synthesis of Phase 1 and Phase 2 Reports by Dr. Ernest Estevez of the Mote Marine Laboratory to the Board of County Commissioners of Sarasota County, Florida. The review and synthesis emphasizes identification of the most important aspects of the structure of the Myakka system in terms of forcing functions, biological components, and major energy flows. In this context, the dominant primary producers, dominant fish species and food habits, and major environmental variables were of articular interest. A major focus of the review and synthesis was on the river zonations provided in the report and based on salinity and various biological indicators. The second part of this memorandum is a review of a draft report by Mote Marine Laboratory on evaluation of potential water quality impacts on the Myakka River from proposed activities in the watershed. This Memorandum's third part is a review of resource-management related ecosystem models in the context of possible future models of the Myakka River Ecosystem. The final part of this memorandum is proposed future work as an extension of the initial reports.
    • 1988 summer drought over the Great Plains: some causes and predictions

      Namias, Jerome (1990-02)
      EXTRACT (SEE PDF FOR FULL ABSTRACT):The 1988 summer drought over much of the United States is described in terms of hemispheric mid-tropospheric flow patterns, temperature and precipitation anomalies, and sea surface temperature patterns. This drought was similar to earlier Great Plains droughts, although spatially more extensive than most. Three attempts to predict this drought from antecedent spring were moderately successful, though no one anticipated its severity and extent. ... A modified barotropic model iterating from a mean summer estimate of seasonal forcing from the May mid-tropospheric height pattern was reasonably successful in forecasting the drought. Sea surface temperature indications show that cold water (La Niña) along the equator subsequent to the 1987 El Niño, while contributory, cannot be considered a principal cause of the drought, since earlier cold water episodes did not produce drought, and other drought episodes occurred in the absence of cold equatorial waters.
    • 1995 Florida Bay Science Conference Abstracts

      Florida Sea Grant College Program (National Oceanographic and Atmospheric Administration, Atlantic Oceanographic and Meteorlogical LaboratoryMiami FL, 1995)
    • 1996 Florida Bay Science Conference abstracts

      Florida Sea Grant College Program (National Oceanographic and Atmospheric Administration Atlantic Oceanographic and Meteorological LaboratoryMiami, FL, 1996)
    • 1997 biological surveys of four Southern California artificial reefs: Oceanside #2, Carlsbad, Pacific Beach, and Mission Bay Park

      Kashiwada, Jerry (California Department of Fish and Game Marine RegionLong Beach, CA, 1998)
    • 1997-8 el Niño and the Galapagos tortoises Geochelone vandenburghi on Alcedo Volcano, Galapagos

      Marquez, Cruz; Wiedenfeld, David; Naranjo, Sixto; Llerena, Washington (2008-12)
      Body mass changes, mortality and nest and egg loss of the Galapagos tortoise Geochelone vandenburghi were studiedon Alcedo Volcano, Isabela Island, before, during and after the El Niño event of 1997–8. The results suggest that fewertortoises in the pre- and post-Niño periods gained body mass than lost, while during the El Niño event itself thetortoises gained mass. Before and after the El Niño, there was no mortality attributable to flooding in the ravines onthe slopes of the volcano, but during the El Niño event 36 tortoises were found dead in the ravines. This is < 1 % ofthe total population. Nest and egg loss due to fungus damage was low (<10 %) in the pre- and post-Niño periods, but during the event a significantly higher proportion (80 % of 76 eggs) were destroyed by fungal infection.
    • 1998 Florida Bay Science Conference Abstracts: central questions

      Florida Sea Grant College Program (National Oceanographic and Atmospheric Administration, Atlantic Oceanographic and Meteorological LaboratoryMiami, FL, 1998)
      Includes abstracts of presentations addressing five key subject areas: Paleoecology Program; Question 1: How and at what rates do storms, changing freshwater flows, sealevel rise, and local evaporation/precipitation patterns influence circulationand salinity patterns within Florida Bay and outflows from the Bay toadjacent waters? Question 2: What is the relative importance of the advection of exogenousnutrients, internal nutrient cycling including exchange between water columnand sedimentary nutrient sources, and nitrogen fixation in determining thenutrient budget of Florida Bay?Question 3: What regulates the onset, persistence and fate of planktonic algalblooms in Florida Bay?Question 4: What are the causes and mechanisms for the observed changesin seagrass and the hardbottom community of Florida Bay? What is the effectof changing salinity, light, and nutrient regimes on these communities?Question 5: What is the relationship between environmental change, habitat change, and the recruitment, growth, and survivorship of higher trophic level species?
    • 1998 warmwater fish survey of Vancouver Lake, Clark County

      Caromile, Stephen J.; Meyer, William R.; Jackson, Chad S. (Washington Department of Fish and Wildlife, Warmwater Enhancement Program,Olympia, WA, 2000)
      The Vancouver Lake warmwater fish population was sampled during the fall of 1998. Vancouver Lake is a large lake, connected directly to the Columbia River through the Lake River to the north and the constructed flushing channel on the eastern shore. A total of 16 species of fish were encountered, mostly warmwater game fish with a few seasonal visitors. The lake has suffered from water quality problems, and during the 1970s, it was dredged, and a channel was created to aid in increasing the water turnover rate, effectively connecting both ends of the lake to the Columbia River. As there is direct access to the Columbia River, managing this lake as a closed system may prove difficult. It is of our opinion that it may be a more effective use of resources to increase the anglers access to the available resources through providing improved boat launch access, and fish habitat structure throughout the lake. Additionally, educating the public about the how-to's of common carp angling could possibly open up additional resources not commonly utilized by the public. (Document pdf contains 38 pages)
    • 1999 Florida Bay and adjacent marine systems science conference; November 1-5, 1999; Westin Beach Resort, Key Largo, FL

      Florida Sea Grant College Program (Florida Sea Grant College ProgramGainesville, FL, 1999)
      The Florida Bay Science Conference provides an opportunity annually for researchers toexchange technical information, share that information with resource managers and otherinterested conference attendees, and establish collaborative partnerships. This year’sconference allows investigators from more than 90 research and monitoring projects theopportunity to highlight their findings in platform and poster presentations.
    • 1999 US tropical fish wholesaler survey: results and implications

      Larkin, Sherry L.; Degner, Robert L.; Adams, Charles M.; Lee, Donna J.; Milon, J. Walter (Florida Sea Grant College ProgramGainesville, FL, 2001)
      A survey of marine life wholesalers was initiated in 1999 as a first step towards understanding thenature of Florida’s marine life industry, the demand for Florida products, and the need for changes inthe way the industry is regulated. Florida firms deal primarily in marine species and collect much oftheir own product. Wholesalers outside of Florida handle more freshwater species and purchase mostof their inventory, the majority from overseas suppliers. Dealers predict that the average firm sizewill continue to grow as the industry consolidates. Niche markets for eco-friendly product will gainmomentum. In Florida, marketing strategies should point to the high quality of Florida species withemphasis on the growing popularity of invertebrates. Wholesalers should look to provide buyers ofFlorida product with more consistent quantities throughout the year. Resource managers will bechallenged to find ways to protect over-harvested species without interfering with the collection ofabundant species while considering the effect of new regulations. (42pp.)
    • 2,4-D and Mycoleptodiscus terrestris for control of Eurasian Watermilfoil

      Nelson, Linda S.; Shearer, J. F. (2005)
      Growth chamber studies were conducted to evaluate theimpact of an indigenous fungal pathogen,Mycoleptodiscus terrestris(Gerd.) Ostazeski, and the herbicide 2,4-D appliedalone and in combination with one another, on the growth ofa nuisance submersed plant, Eurasian watermilfoil (MyriophyllumspicatumL.)(PDF has 6 pages.)
    • 2002-03 Florida Keys National Marine Sanctuary science report: An ecosystem report card after five years of marine zoning

      Keller, B. D.; Donahue, S. (NOAA/National Ocean Service/National Marine Sanctuary ProgramSilver Spring, MD, 2007)
      Executive Summary:Circulation and Exchange of Florida Bay and South Florida Coastal Waters The coastal ecosystem of South Florida is comprised of distinct marine environments. Circulation of surface waters and exchange processes, which respond to both local and regional forcings, interconnect different coastal environments. In addition, re-circulating current systemswithin the South Florida coastal ecosystem such as the Tortugas Gyre contribute to retention of locally spawned larvae.Variability in salinity, chlorophyll, and light transmittance occurs on a wide range of temporal and spatial scales, in response to both natural forcing, such as seasonal precipitation and evaporation and interannual “El Niño” climate signals, and anthropogenic forcing, such as water management practices in south Florida. The full time series of surface property maps are posted at www.aoml.noaa.gov/sfp.Regional surface circulation patterns, shown by satellite-tracked surface drifters, respond to large-scale forcing such as wind variability and sea level slopes. Recent patterns include slow flow from near the mouth of the Shark River to the Lower Keys, rapid flow from the Tortugas tothe shelf of the Carolinas, and flow from the Tortugas around the Tortugas Gyre and out of the Florida Straits.The Southwest Florida Shelf and the Atlantic side of the Florida Keys coastal zone are directly connected by passages between the islands of the Middle and Lower Keys. Movement of water between these regions depends on a combination of local wind-forced currents and gravitydriventransports through the passages, produced by cross-Key sea level differences on time scales of several days to weeks, which arise because of differences in physical characteristics (shape, orientation, and depth) of the shelf on either side of the Keys. A southeastward meanflow transports water from western Florida Bay, which undergoes large variations in water quality, to the reef tract.Adequate sampling of oceanographic events requires both the capability of near real-time recognition of these events, and the flexibility to rapidly stage targeted field sampling. Capacity to respond to events is increasing, as demonstrated by investigations of the 2002 “blackwater”event and a 2003 entrainment of Mississippi River water to the Tortugas. (PDF contains 364 pages.)
    • 2005 Florida Bay and Adjacent Marine Systems Science Conference; Hawk’s Cay Resort Duck Key, Florida; December 11-14, 2005: program and abstract book

      Florida Bay Program Management Committee; Office of Conferences and Institutes, IFAS, University of Florida; Florida Bay and Adjacent Marine Systems Science Program (Florida Sea Grant College ProgramGainesville, FL, 2005)
      Conference themes addressed: Applications and Restoration Targets,the Mangrove-Estuarine Transition Zone, Benthic Habitats, Water Quality, Physical Processes,Higher Trophic Levels, and Adjacent Systems.