Pelagic Fishes

  • Slide 1
    Slide 1  Blue marlin (Makaira nigricans): Off the coast of Costa Rica  Photo by Guy Harvey
  • Slide 2
    Slide 2  White marlin (Kajikia albida): With a pop-up satellite tag off Venezuela  Photo by Guy Harvey
  • Slide 3
    Slide 3  White marlin (Kajikia albida): With a pop-up satellite tag off Venezuela.  Photo by Guy Harvey
  • Slide 4
    Slide 4  White marlin (Kajikia albida): With a pop-up satellite tag off Virginia.  Photo by Ken Neill
  • Slide 5
    Slide 5  Sailfish (Istiophorus platypterus): Feeding on small sardines off Isla Mujeres, Mexico.  Photo by John Graves
  • Slide 6
    Slide 6  Sailfish (Istiophorus platypterus): Off Isla Mujeres, Mexico.  Photo by Guy Harvey
  • Slide 7
    Slide 7  Blue Marlin (Makaira nigricans): John Graves administering satellite tag off of Venezuela  Photo by Bill Watts
  • Slide 8
    Slide 8  Blue Marlin (Makaira nigricans): With a pop-up satellite tag off Venezuela.  Photo by Bill Watts
  • Slide 9
    Slide 9  White marlin (Kajikia albida): Graduate student Emily Loose off Virginia.  Photo by Ken Neill
  • Slide 10
    Slide 10  Blue marlin (Makaira nigricans): Off the Pacific coast of Costa Rica.  Photo by Guy Harvey
  • Slide 11
    Slide 11  White marlin (Kajikia albida): Graduate student Ben Marcek catching a white marlin off Virginia.  Photo by Ken Neill
  • Slide 12
    Slide 12  White marlin (Kajikia albida): Graduate student Ben Marcek off Virginia.  Photo by Ken Neill
  • Slide 13
    Slide 13  Red drum (Sciaenops ocellatus): Angler Tricia Neill holding a red drum tagged with a pop-up satellite tag in Chesapeake Bay.  Photo by Ken Neill
  • Slide 14
    Slide 14  Striped bass (Morone saxatilis): John Graves holding a striped bass with a pop-up satellite tag off the coast of Virginia.  Photo by Ken Neill
  • Slide 15
    Slide 15  Striped bass (Morone saxatilis): With a pop-up satellite tag off the coast of Virginia.  Photo by Ken Neill
  • Slide 16
    Slide 16  Baby Atlantic bluefin tuna (Thunnus thynnus): Off the coast of Virginia  Photo by Ken Neill
Photo - of -

Pelagic fishes support important commercial and recreational fisheries throughout the world’s oceans. Effective management of these international resources requires solid scientific advice. For the past several years we have undertaken a variety of investigations that address specific management issues of pelagic species, and we have been proactive in providing the results of our studies to management agencies at the national and international levels. A major focus of our research has been to quantify post-release mortality for a variety of pelagic fishes caught on pelagic longline and recreational fishing gears, with a goal developing means to reduce bycatch mortality.

Current Studies
  •  Use of organochlorine tracer analysis to determine the magnitude and temporal variation of mixing rates of juvenile eastern and western Atlantic bluefin tuna
  • Post-release mortality of large school and small medium Atlantic bluefin tuna caught in the U.S. recreational fishery
  • Movement and habitat utilization of white marlin in the western North Atlantic
Previous Studies

Post-release survival

  • Blue marlin
    • Pelagic longline fishery
    • Recreational fishery
      • Bermuda troll fishery
      • Circle hooks and J hooks with natural baits
  • White marlin
    • Pelagic longline fishery
    • Recreational fishery
      • Circle hooks and J hooks with natural baits
      • Three models of circle hooks with natural baits
    • Effects of fight time and handling on post-release survival
  • Sailfish
    •  Pelagic longline fishery

Catch rates of circle hooks and J hooks in the pelagic longline fishery

  • U.S. Atlantic fishery
  • Brazilian equatorial fishery
  • Venezuelan live bait fishery