Björn Kjerfve

ORCID: 0000-0002-3867-3281
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About
Contact & Profiles
Research Areas
  • Oceanographic and Atmospheric Processes
  • Coastal and Marine Dynamics
  • Coastal wetland ecosystem dynamics
  • Marine and coastal ecosystems
  • Geological formations and processes
  • Marine and fisheries research
  • Coastal and Marine Management
  • Coral and Marine Ecosystems Studies
  • Tropical and Extratropical Cyclones Research
  • Geology and Paleoclimatology Research
  • Water Quality and Resources Studies
  • Marine and coastal plant biology
  • Underwater Acoustics Research
  • Marine and environmental studies
  • Aeolian processes and effects
  • Fish Ecology and Management Studies
  • Hydrology and Sediment Transport Processes
  • Ocean Waves and Remote Sensing
  • Aquatic Ecosystems and Phytoplankton Dynamics
  • Ocean Acidification Effects and Responses
  • Climate variability and models
  • Isotope Analysis in Ecology
  • Geological and Tectonic Studies in Latin America
  • Soil erosion and sediment transport
  • Groundwater and Isotope Geochemistry

University of South Carolina
2000-2023

University of Trinidad and Tobago
2018

American University of Sharjah
2016-2017

World Maritime University
2010-2014

Fair Isaac Corporation (United States)
2012

Texas A&M University
2005-2012

Universidad Nacional del Sur
2005

Mitchell Institute
2005

Universidade Federal Fluminense
1991-2004

Scientific Committee On Oceanic Research
1983-2003

Salt marsh ecosystems are maintained by the dominant macrophytes that regulate elevation of their habitat within a narrow portion intertidal zone accumulating organic matter and trapping inorganic sediment. The long-term stability these is explained interactions among sea level, land elevation, primary production, sediment accretion surface toward an equilibrium with mean level. We show here in salt this adjusted upward increased production macrophyte Spartina alterniflora downward...

10.1890/0012-9658(2002)083[2869:rocwtr]2.0.co;2 article EN Ecology 2002-10-01

The natural conservation of coastal lagoons is important not only for their ecological importance, but also because the valuable ecosystem services they provide human welfare and wellbeing. Coastal are shallow semi-enclosed systems that support habitats such as wetlands, mangroves, salt-marshes seagrass meadows, well a rich biodiversity. complex social-ecological with livelihoods, wellbeing to humans. This study assessed, quantified valued 32 lagoons. main findings are: (i) definitions still...

10.1016/j.jnc.2018.02.009 article EN cc-by-nc-nd Journal for Nature Conservation 2018-02-23

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 215:275-282 (2001) - doi:10.3354/meps215275 Whale sharks Rhincodon typus aggregate feed on fish spawn in Belize William D. Heyman1,*, Rachel T. Graham2, Björn Kjerfve3, Robert E. Johannes4 1The Nature Conservancy, 62 Front Street, Punta Gorda, 2Environment Department, University of York, c/o Box 170,...

10.3354/meps215275 article EN Marine Ecology Progress Series 2001-01-01

Extensive measurements of material concentrahons and water velocities at a transect across North Inlet, South C r o h (USA) allowed the estimation net fluxes.Sampling periods were distnbuted seasonally according to tidal height.Statistical hydrodynanlic models used develop flux estimates for specific cycles.There was discharge from marsh-estuanne system Atlantic Ocean which is attributed rainfall runoff freshwater input an adjacent estuary.All constitutents exported annually -except total...

10.3354/meps033217 article EN Marine Ecology Progress Series 1986-01-01

Analysis of tidal characteristics from 45 gauge locations indicates that the Caribbean Sea hs a microtidal range, for most part between 10 and 20 cm. The tide is primarily either mixed semidiurnal or diurnal but substantial section Puerto Rico to Venezuela experiences tides. Empirical charts six component tides (M 2 , S N K 1 O P ) show local detail phase amplitude. Each compnent characterized by anticlockwise rotating amphidromes centered in eastern Caribbean. There evidence strong...

10.1029/jc086ic05p04243 article EN Journal of Geophysical Research Atmospheres 1981-05-20

Estuarine budget studies often suffer from uncertainties of net flux estimates in view large temporal and spatial variabilities. Optimum measurement density material errors for a reasonably well mixed estuary were estimated by sampling 10 stations surface to bottom simultaneously every hour two tidal cycles 320‐m‐wide cross section North Inlet, South Carolina. Discharge ATP NII 4 + ‐N fluxes computed. The analysis method was form number cases, each based on different combination compare...

10.4319/lo.1981.26.2.0325 article EN Limnology and Oceanography 1981-03-01

Cubera snapper Lutjanus cyanopterus aggregated to spawn at Gladden Spit, a salient sub‐surface reef promontory seaward of the emergent and near continental shelf edge Belize. Their spawning aggregations typically formed 2 days before 12 after full moon from March September 1998–2003 within 45 000 m area. Peak abundance 4000 10 individuals was observed between April July each year, while actual most frequently in May. Spawning consistently 40 min sunset confined area ≤1000 . Data suggested...

10.1111/j.0022-1112.2005.00714.x article EN Journal of Fish Biology 2005-07-01

Small rivers draining high-rainfall basins and mountainous terrain west of the Cordilleras in South America have disproportionately high water discharge sediment load. Fifteen western Colombia a combined 254 km3 yr-1 or 8020 m3 s-1 into Pacific. Sediment yield is strongly correlated with basin area (R2=0.97), load (R2=0.73). Rio San Juan occupies 16,465-km2 mean annual rainfall 7277 mm. It has highest (2550 s-1), (16x106 t yr-1), basin-wide (1150 km-2 yr-1) on entire coast America. Patía...

10.1086/314390 article EN The Journal of Geology 2000-01-01

A synthesis of a comprehensive annual study material processing in the Bly Creek marsh-estuarine basln is described.The project design provides statistical estimates fluxes for water column, salt marsh, and oyster reef subsystems.Fluxes from freshwater stream, groundwater, rain are also presented Material by basin constituent-and subsystem-specific Inflows via rain, streamwater.and groundwater small relatively unin~portant compared to tidal fluxes.The marsh dominates aerial extent terms net...

10.3354/meps072153 article EN Marine Ecology Progress Series 1991-01-01

Salt marsh ecosystems are maintained by the dominant macrophytes that regulate elevation of their habitat within a narrow portion intertidal zone accumulating organic matter and trapping inorganic sediment. The long-term stability these is explained interactions among sea level, land elevation, primary production, sediment accretion surface toward an equilibrium with mean level. We show here in salt this adjusted upward increased production macrophyte Spartina alterniflora downward...

10.2307/3072022 article EN Ecology 2002-10-01
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