National Marine Fisheries Service

Because marine mammals, such as whales and dolphins, often inhabit waters where commercial fishing occurs, they can become entangled in fishing gear, which may injure or kill them--this is referred to as "incidental take." The 1994 amendments to the Marine Mammal Protection Act (MMPA) require the National Marine Fisheries Service (NMFS) to establish take reduction teams for certain marine mammals to develop measures to reduce their incidental takes. GAO was asked to determine the extent to which NMFS (1) can accurately identify the marine mammal stocks--generally a population of animals of the same species located in a common area--that meet the MMPA's requirements for establishing such teams, (2) has established teams for those stocks that meet the requirements, (3) has met the MMPA's deadlines for the teams subject to them, and (4) evaluates the effectiveness of take reduction regulations. GAO reviewed the MMPA, and NMFS data on marine mammals, and take reduction team documents and obtained the views of NMFS officials, scientists, and take reduction team members.

Significant limitations in available data make it difficult for NMFS to accurately determine which marine mammal stocks meet the statutory requirements for establishing take reduction teams. For most stocks, NMFS relies on incomplete, outdated, or imprecise data on stocks' population size or mortality to calculate the extent of incidental take. As a result, the agency may overlook some marine mammal stocks that meet the MMPA's requirements for establishing teams or inappropriately identify others as meeting them. NMFS officials told GAO they are aware of the data limitations but lack funding to implement their plans to improve the data. On the basis of NMFS's available information, GAO identified 30 marine mammal stocks that have met the MMPA's requirements for establishing a take reduction team, and NMFS has established six teams that cover 16 of them. For the other 14 stocks, the agency has not complied with the MMPA's requirements. For example, false killer whales, found off the Hawaiian Islands, have met the statutory requirements since 2004, but NMFS has not established a team for them because, according to NMFS officials, the agency lacks sufficient funds. NMFS officials told GAO that the agency has not established teams for the other stocks that meet the MMPA's requirements for reasons such as the following: (1) data on these stocks are outdated or incomplete, and the agency lacks funds to obtain better information and (2) causes other than fishery-related incidental take, such as sonar used by the U.S. Navy, may contribute to their injury or death, therefore changes to fishing practices would not solve the problem. For the five take reduction teams subject to the MMPA's deadlines, the agency has had limited success in meeting the deadlines for establishing teams, developing draft take reduction plans, and publishing proposed and final plans and regulations to implement them. For example, NMFS established three of the five teams--the Atlantic Large Whale, Pelagic Longline, and Bottlenose Dolphin--from 3 months to over 5 years past the deadline. NMFS officials attributed the delays in establishing one of the teams to a lack of information about stock population size and mortality, which teams need to consider before developing draft take reduction plans. NMFS does not have a comprehensive strategy for assessing the effectiveness of take reduction plans and implementing regulations that have been implemented. NMFS has taken some steps to define goals, monitor compliance, and assess whether the goals have been met, but shortcomings in its approach and limitations in its performance data weaken its ability to assess the success of its take reduction regulations. For example, without adequate information about compliance, if incidental takes continue once the regulations have been implemented, it will be difficult to determine whether the regulations were ineffective or whether the fisheries were not complying with them.

Recommendations

Our recommendations from this work are listed below with a Contact for more information. Status will change from "In process" to "Open," "Closed - implemented," or "Closed - not implemented" based on our follow up work.

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