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Endangered and Threatened Wildlife and Plants; 5-Year Review of the Bull Trout

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Fish and Wildlife Service, Interior.


Notice of review.


The U.S. Fish and Wildlife Service (Service), announces a 5-year review of the bull trout (Salvelinus confluentus) under section 4(c)(2)(A) of the Endangered Species Act of 1973 (Act) (16 U.S.C. 1531 et seq.). The purpose of reviews conducted under this section of the Act is to ensure that the classification of species as threatened or endangered on the List of Endangered and Threatened Wildlife and Plants (List) is accurate.

The 5-year review is an assessment of the best scientific and commercial data available at the time of the review. Therefore, we are requesting submission of any new information (best scientific and commercial data) on the bull trout since its original listing as a threatened species conterminously in the lower 48 states in 1999 (64 FR 58932). If the present classification of this species is not consistent with the best scientific and commercial information available, the Service will recommend whether or not a change is warranted in the Federal classification of bull trout. Any change in Federal classification would require a separate final rule-making process.


Information submitted for our consideration must be received on or before July 1, 2004.


Information submitted should be sent to the U.S. Fish and Wildlife Service, Bull Trout Coordinator, Attention: Bull Trout 5-year Review, 911 NE. 11th Avenue, Portland, Oregon, 97232. Information received in response to this notice and review will be available for public inspection by appointment, during normal business hours, at the above address. New information regarding the bull trout may also be sent electronically to

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John Young at the above address, or at 503/231-2767.

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Why Is a 5-Year Review Conducted?

Section 4(c)(2)(A) of the Act requires that we conduct a review of listed species at least once every 5 years. We are then, under section 4(c)(2)(B) and the provisions of subsections (a) and (b), to determine, on the basis of such a review, whether or not any species should be removed from the List (delisted), or reclassified from endangered to threatened, or threatened to endangered. Our regulations at 50 CFR 424.21 require that we publish a notice in the Federal Register announcing those species currently under active review. This notice announces our active review of the bull trout.

What Information Is Considered in the Review?

The 5-year review considers all new information available at the time of the review. This review will consider the best scientific and commercial data that has become available since the current listing determination or most recent status review, such as:

A. Species biology including, but not limited to, population trends, distribution, abundance, demographics, and genetics;

B. Habitat conditions including, but not limited to, amount, distribution, and suitability;

C. Conservation measures that have been implemented that benefit the species;

D. Threat status and trends (see five factors under heading “How do we determine whether a species is endangered or threatened?”); and

E. Other new information, data, or corrections including, but not limited to, taxonomic or nomenclatural changes, identification of erroneous information contained in the List, and improved analytical methods.

How Is the Bull Trout Currently Listed?

The List is found in 50 CFR 17.11 (wildlife) and 17.12 (plants). Amendments to the List through final rules are published in the Federal Register. The List is also available on our Internet site at​wildlife.html#Species. In Table 1 below, we provide a summary of the listing information for the bull trout.

Table 1.—Summary of the Listing Information for the Bull Trout

Common nameScientific nameStatusWhere listedFinal listing rule
bull troutSalvelinus confluentusThreatenedU.S.A., conterminous (lower 48 states)64 FR 58932(01-NOV-99).

Definitions Related to This Notice

The following definitions are provided to assist those persons who contemplate submitting information regarding the species being reviewed:

A. Species includes any species or subspecies of fish, wildlife, or plant, and any distinct population segment of any species of vertebrate, which interbreeds when mature.

B. Endangered means any species that is in danger of extinction throughout all or a significant portion of its range.

C. Threatened means any species that is likely to become an endangered species within the foreseeable future throughout all or a significant portion of its range.

How Do We Determine Whether a Species is Endangered or Threatened?

Section 4(a)(1) of the Act establishes that we determine whether a species is endangered or threatened based on one or more of the five following factors:

A. The present or threatened destruction, modification, or curtailment of its habitat or range;

B. Overutilization for commercial, recreational, scientific, or educational purposes;

C. Disease or predation;

D. The inadequacy of existing regulatory mechanisms; or

E. Other natural or manmade factors affecting its continued existence.

Section 4(a)(1) of the Act requires that our determination be made on the basis Start Printed Page 19450of the best scientific and commercial data available.

What Could Happen as a Result of This Review?

If we find that there is new information concerning the bull trout indicating a change in classification may be warranted, we may propose a new rule that could do one of the following: (a) Reclassify the species from threatened to endangered; or (b) remove the species from the List. If we determine that a change in classification is not warranted, the bull trout will remain on the List under its current status.

Public Solicitation of New Information

We request any new information concerning the status of the bull trout, see “What information is considered in the review?” heading for specific criteria. Information submitted should be supported by documentation such as maps, bibliographic references, methods used to gather and analyze the data, and/or copies of any pertinent publications, reports, or letters by knowledgeable sources.


This document is published under the authority of the Endangered Species Act (16 U.S.C. 1531 et seq.).

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Dated: March 4, 2004.

David J. Wesley,

Acting Regional Director, Region 1, Fish and Wildlife Service.

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[FR Doc. 04-8295 Filed 4-12-04; 8:45 am]