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References and resources

In Minnesota

Fish Lead FreeNational and international resources


Scientific research and published studies

Citations of scientific studies done to date on lead fishing gear ingestion in common loons. (Sorted by publishing date.)


In the news

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  • PDF Document Abstracts: Lead Sinker Symposium (2005) (symposium2005)
    Abstracts of eleven papers presented at the "Lead Sinker Symposium" held during the 32nd Aquatic Toxicity Workshop (October 2-5, 2005) in Waterloo, Ontario.
  • HTML Content Bass fishing basics: Bass sinkers and jigheads [status: unavailable to public]
    Don Wirth, Updated: February 18, 2008
    Sinker Materials: Lead has traditionally been used to make sinkers and jigheads because it's inexpensive and easily molded in a variety of shapes. However, lead has proven to be toxic to fish, birds and other animals (including humans), and lead sinkers and jigs are currently banned in a growing number of states. Tungsten is an excellent, albeit expensive, substitute for lead. BASS pros use tungsten weights when a stealthier presentation is required — tungsten is heavier than lead, allowing a smaller, less conspicuous weight to be used. Brass is a popular material for worm weights and Carolina sinkers. It produces loud clicks and rattles when dragged across the bottom, and its light-reflective finish can attract bass.
  • HTML Content Denmark adopts ban on products containing lead External Link
    Denmark's statutory order prohibiting the import and marketing of products containing lead entered into force on December 1, 2000. Companies are now prohibited from importing and marketing any product containing lead. Prohibitions for both sport and commercial fishing equipment were effective December 2002.
  • HTML Content Environment Canada: Fish lead free External Link
  • PDF Document Estimates of Tackle Loss for Five Minnesota Walleye Fisheries (radomski2006)
    There are few studies that quantify tackle loss for recreational fisheries; this study sought to determine tackle loss for five large lake fisheries in Minnesota. (Radomski, Heinrich, Jones, Rivers, and Talmage; Minnesota Department of Natural Resources)
  • PDF Document Fishing Lead Free: A Regulatory Proposal (leadfree-canada2005)

    On February 17, 2004, the Minister of the Environment announced his
    intention to develop regulations to prohibit the import, manufacture, and
    sale of lead sinkers and jigs used in fishing. This was done as follow-up to
    commitments made in the House of Commons in 2002 during debates on
    Votable Motion-414 to ban the use of lead sinkers and jigs, and as followup
    to the 2003 release of the Canadian Wildlife Service Occasional Paper
    108* entitled Lead fishing sinkers and jigs in Canada: Review of their use
    patterns and toxic impacts on wildlife. Occasional Paper 108 reviews the
    issue of lead sinker toxicity for loons and other wildlife and provides a
    scientific basis for the proposed regulation. The purpose of this discussion
    paper, Fishing Lead Free: A Regulatory Proposal, is to provide a reference
    point for the consultations during the development of the regulations. It is
    recommended that Occasional Paper 108 be reviewed by those desiring a
    more thorough technical understanding of the issue.

  • HTML Content Interactive mortality factors in common loons from Maritime Canada [status: unavailable to public]
    Necropsies of 31 moribund or dead common loons (Gavia immer) found in the three Maritime provinces of Canada (New Brunswick, Nova Scotia, Prince Edward Island) suggest that lead poisoning is a contributing factor to loon mortality. (Daoust PY, Conboy G, McBurney S, Burgess N. Journal of Wildlife Diseases, July 1998)
  • HTML Content Lead In Fishing Tackle (American Sportfishing Association) External Link
    The American Sportfishing Association (ASA) acknowledges that lead toxicosis can kill water birds and lead fishing tackle may contribute to this mortality. However, based on a review of the impact of lead fishing tackle on waterbird populations, ASA has found that insufficient data exists to warrant state or federal bans on lead fishing tackle.
  • HTML Content Lead in Sport Fishing Tackle - Final Draft Policy Statement (American Fisheries Society) External Link
    The policy of the American Fisheries Society, in regard to lead fishing tackle. Final draft: Sept. 2011.
  • PDF Document Lead Objects Ingested by Common Loons in New England External Link
    Necropsies of Gavia immer (Common Loon) recovered lead and non-lead foreign objects from gastrointestinal tracts. Carcasses collected between 1987 and 2000 reveal that a great deal of loon mortality on lakes in New England is attributable to ingestion of lead objects. In this study, 522 carcasses were examined to inspect the types, sizes, and masses of 222 objects responsible for lead toxicosis. Most ingested lead objects were less than 2.5 cm long and weighed less than 25g. Information on objects ingested by loons may help in development of non-toxic alternatives.
  • HTML Content Loon Health and Mortality External Link
    Almost half (44%) of the dead and dying breeding loons submitted to the Wildlife Clinic at Cummings School of Veterinary Medicine at Tufts University in North Grafton, Massachusetts suffered from lead poisoning. Virtually all of this is from eating lead fishing gear.
  • MS Powerpoint Document Loon Mortality in Michigan 1987-2004 (cooley-loonmortality)
    PowerPoint presentation by Thomas M. Cooley, Michigan Department of Natural Resources.
  • HTML Content Maine: Unlawful sale of lead sinkers External Link
    Maine state law (effective 2002) restricts the sale of lead sinkers weighing 1/2 ounce or less, not the use.
  • HTML Content Management Concerns about Known and Potential Impacts of Lead Use in Shooting and in Fishing Activities (2008) External Link
    A summary of a technical review addressing the hazards to wildlife resulting from lead ammunition and fishing tackle. This article discusses the general biological impacts of lead exposure from fishing and shooting activities to fish, wildlife, and humans; summarizes existing and proposed regulations to reduce lead exposure to biota; reviews alternatives to lead materials that are currently available for fishing; and outlines options for further actions to reduce wildlife and human exposure to lead from fishing activities. (Goddard, Leonard, Stang, Wingate, Rattner, Franson, and Sheffield; Fisheries Vol. 33, No. 5.)
  • HTML Content Massachusetts: Loons, lead sinkers, and jigs External Link
    January 1, 2012 -- The use of any lead fishing sinkers and lead jigs weighing less than 1 ounce is now prohibited in all inland waters (fresh water) of the Commonwealth. In June 2000, the Massachusetts Fisheries & Wildlife Board voted to prohibit the use of all lead sinkers for the taking of fish in Quabbin and Wachusett Reservoirs, the two bodies of water that support the core of that state's loon population.
      In terms of this regulation, "lead sinker" or "lead weight" is defined as any sinker or weight made from lead that weighs less than 1 ounce. A "lead jig" is defined as any lead-weighted hook weighing less than 1 ounce. Prohibited tackle includes lead sinkers and jigs weighing less than an ounce regardless of whether they are painted, coated with rubber, covered by attached "skirts" or some other material. See the questions below for more details.
  • PDF Document Mortality of the common loon in New England, 1987-2000 (sidor2003)

    Sidor, Pokras, Major, Taylor, and Miconi. 2003. Mortality of the common loon in New England, 1987-2000. Journal of Wildlife Diseases 39: 306-315.

  • HTML Content National Wildlife Federation: Getting the Lead Out External Link
    Lead fishing tackle kills loons; with no national policy to fight the problem, conservationists are convincing anglers to switch to nontoxic alternatives. (National Wildlife Federation Magazine, 2001)
  • PDF Document Necropsy findings and environmental contaminants in common loons from New York (2001) (stone2001)

    Stone and Okoniewski. 2001. Necropsy findings and environmental contaminants in common loons from New York. Journal of Wildlife Diseases Vol. 37(1):178-184.

  • HTML Content New Hampshire: Keep Getting the Lead Out - It's the Law! External Link
    In 2000, New Hampshire was the first state to ban lead sinkers and jigs to protect common loons and other diving birds. The ban prohibits both the sale and use of lead sinkers weighing 1 ounce or less and lead jigs less than 1 inch long along their longest axis.
  • PDF Document New South Wales Legislative Council: Discussion of a Lead Sinkers Ban (2005) External Link
    In Australia, leaders colorfully debated whether to restrict the use of lead fishing tackle. In October 2005, the New South Wales Legislative Council (state senate) discussed Canada's proposed restrictions and members of Parliament sparred over the severity of the issue.
  • HTML Content New York: Lead Fishing Weights and Loons External Link
    In recognition of the threat to loons and other birds, effective May 2004, New York banned the sale of lead sinkers weighing less than half of an ounce.
  • PDF Document Position paper: The Practical Impacts of Banning Lead Sinkers for Fishing (2011) External Link
    A paper by the American Sportfishing Association, reviewing the existing science on the effects of lead on waterfowl populations. (June 2011)
  • PDF Document Quetico Provincial Park Fisheries Stewardship Plan External Link
    This Fisheries Stewardship Plan was developed to provide management direction for the protection of the ecological integrity of aquatic ecosystems in Quetico Provincial Park (QPP) in Ontario, Canada. Among the key initiatives: Lead Sinkers and Jigs - Encourage the use of alternative, non-lead tackle within QPP through a comprehensive educational campaign as well as the provision of alternative fishing gear at the entry stations and Park Stores. Local merchants and outfitters will also be encouraged to offer lead free fishing gear. Researchers will be encouraged to study the effects of lead on aquatic wildlife and ecosystems. Federal initiatives concerning the issue of lead in fishing tackle will be monitored.
  • PDF Document Review of the Environmental Impacts of Lead Shotshell Ammunition and Lead Fishing Weights in Canada (1995) External Link
    This report reviews the available information, from Canada and elsewhere, on the use, environmental fate, and toxicity of spent lead shot and lost lead fishing weights and discusses options for managing the negative impacts of these products. (Scheuhammer, et al)
  • PDF Document Sinkers - Get the lead out! (w-hhw4-66)
    Non-lead fishing tackle is an effective alternative, and it protects loons, eagles, and other wildlife.
  • HTML Content Sources of lead-free tackle (MassWildlife) External Link
    As of January 1, 2012, use of lead fishing sinkers and lead jigs weighing less than 1 ounce is prohibited in all inland waters (fresh water) of the Commonwealth of Massachusetts. MassWildlife has compiled this list for anglers to help them find products which comply with the law.
  • HTML Content United Kingdom: Lead weights for fishing External Link
    Byelaw relating to use of lead weights by anglers: No fishing weights made of lead may be used except those of 0.06 grams or less and those of more than 28.35 grams. In angling terms this means that lead shot from size 14 to size 8 and lead weights of over 1 ounce can be used in fishing.
  • HTML Content Vermont: An act relating to a prohibition against the use and sale of lead sinkers External Link
    In 2004, the Vermont Legislature passed a bill banning the sale (January 2006) of lead sinkers weighing 1/2 ounce or less, and then the use (January 2007) of those lead sinkers in the state.
  • HTML Content Washington: Conserving Common Loons by Managing Use of Lead Fishing Tackle External Link
    Effective May 2011, restrictions are in place for use of lead fishing tackle at Washington lakes where loons breed and rear young. They were adopted by the Washington Fish and Wildlife Commission in December 2010. The rules are intended to improve loon survival by keeping loons from being poisoned by ingesting small lead fishing gear lost by anglers.
  • PDF Document ¡Elimine el plomo! (Sinkers: Get the lead out! - Spanish) (w-hhw4-66b)
    ¡Elimine el plomo! (Sinkers: Get the lead out! - Spanish) - w-hhw4-66b

Last modified on Wednesday, April 03, 2013 12:58