TROUT UNLIMITED; AMERICAN RIVERS; PACIFIC RIVERS COUNCIL WILD STEELHEAD COALITION; NATIVE FISH SOCIETY; SIERRA CLUB v. D. ROBERT LOHN, in his official capacity as Regional Administrator of National Marine Fisheries Service Northwest Regional Office; NATIONAL MARINE FISHERIES SERVICE; BUILDING INDUSTRY ASSOCIATION OF WASHINGTON; WASHINGTON STATE FARM BUREAU; COALITION FOR IDAHO WATER; IDAHO WATER USERS ASSOCIATION
No. 07-35623, No. 07-35750
United States Court of Appeals for the Ninth Circuit
March 16, 2009
559 F.3d 946
Before: Diarmuid F. O‘Scannlain, Pamela Ann Rymer, and Andrew J. Kleinfeld, Circuit Judges. Opinion by Judge O‘Scannlain.
Appeal from the United States District Court for the Western District of Washington, John C. Coughenour, District Judge, Presiding. Argued and Submitted October 20, 2008—Seattle, Washington.
Damien M. Schiff, Pacific Legal Foundation, Sacramento, California, argued the cause for the defendant-intervenors-appellants. Brian T. Hodges and Sonya D. Jones, Pacific Legal Foundation, Bellevue, Washington, and James S. Burling, Pacific Legal Foundation, Sacramento, California, filed the briefs.
Patti Goldman, Earthjustice, Seattle, Washington, argued the cause for the plaintiffs-appellees and filed the brief. Jan Hasselman, Earthjustice, Seattle, Washington, was on the brief.
Ellen J. Durkee and David C. Shilton, Environmental & Natural Resources Division, U.S. Department of Justice, argued the cause for the defendants-appellees-appellants and filed the briefs. Michael Bancroft and Chris McNulty, NOAA Office of General Counsel, Seattle, Washington, and Ronald J. Tenpas, Assistant Attorney General, and Lisa Russell, U.S. Department of Justice, were on the brief.
OPINION
O‘SCANNLAIN, Circuit Judge:
We must decide whether the National Marine Fisheries Service may distinguish between natural and hatchery-spawned salmon and steelhead when determining the level of protection the fish should be afforded under the Endangered Species Act.
I
A
Pacific Coast salmon are anadromous fish, meaning that they can survive both in saltwater and in freshwater. The
Pacific salmon have a long and turbulent evolutionary history. Salmon have survived geological disruptions such as the rotation of the Cascade Mountains, which caused coastal rivers to change their patterns; the most recent ice age, which covered the present location of Seattle with a sheet of ice 4,000 feet thick; and the warming and frequent floods attendant on the thawing of that glacier. Such natural challenges have resulted in a set of genetically diverse salmon populations. Accordingly, salmon populations can vary greatly even if geographically close, depending on their adaptations to conditions in the natal stream.
Human development in the Pacific Northwest has long threatened many salmon and steelhead species with extinction.1 “[F]orestry, agricultural, mining, and urbanization activities . . . have resulted in the loss, degradation, simplification, and fragmentation of habitat.” Final Listing Determinations for 10 Distinct Population Segments of West Coast Steelhead, 71 Fed. Reg. 834, 856 (Jan. 5, 2006). In particular, “logging, road construction, [and] urban development” have caused “declines in [steelhead populations] in the past several decades.” Id. These declines have caused concern to environmental organizations and fisheries alike.
Hatchery programs generally have two goals which can conflict with one another: to increase the number of salmon available for fishing, and to prevent natural salmon from becoming extinct. “While some of the programs . . . have been successful in providing fishing opportunities, many such programs have posed risks to the genetic diversity and long-term reproductive fitness of local natural steelhead populations.” Id. The risks hatchery programs pose to natural fish include:
excessive mortality of natural steelhead in fisheries targeting hatchery-origin steelhead; competition for prey and habitat; predation by hatchery-origin fish on younger natural fish; genetic introgression by hatchery-origin fish that spawn naturally and interbreed with local natural populations; disease transmission; degraded water quality and quantity, and impediments to fish passage imposed by hatchery facilities.
Id. Interbreeding poses particular risks to natural salmon populations because it can result in decreased genetic differentiation. On the other hand, “the use of conservation hatcheries may play an important role, under appropriate circumstances,
B
Congress enacted the Endangered Species Act (“ESA“) in 1973 “to provide a means whereby the ecosystems upon which endangered species and threatened species depend may be conserved.”
As part of this mandate, the ESA requires the National Marine Fisheries Service (“NMFS“) to do three things that are at issue in these appeals. First, NMFS must decide whether a population of fish or wildlife constitutes a “species” or a “distinct population segment” within the meaning of the ESA. The ESA defines “species” to include “any subspecies of fish or wildlife or plants, and any distinct population segment of any species of vertebrate fish or wildlife which interbreeds when mature.”
Second, after deciding whether a population of fish or wildlife constitutes a “species” or a “distinct population segment,” NMFS must decide whether to “list” the species or distinct population segment. A species or distinct population segment may be listed as either “endangered” or “threatened.”
Third, if NMFS decides to list a species or a distinct population segment as “endangered” or “threatened,” it must accord the species or the distinct population segment various legal protections. For example, an endangered species may not be “take[n],” meaning that no one may “harass, harm, pursue, hunt, shoot, wound, kill, trap, capture, or collect” it.
Over the past two decades, NMFS has adopted regulations applying the ESA‘s mandates to salmon and steelhead populations in the Pacific Northwest. These regulations have been modified over the years in response to scientific evidence and to legal challenges. To provide context for the present appeals, we describe how the modern regulations at issue here developed.
In 1991, NMFS issued a Policy Statement defining a “distinct population segment” (“DPS“), and hence a “species” under the ESA, as an “evolutionarily significant unit” (“ESU“) “of the biological species.” Policy on Applying the Definition of Species, 56 Fed. Reg. 58,612, 58,618 (Nov. 20, 1991) (the “ESU Policy“). An ESU “must satisfy two criteria . . . (1) It must be substantially reproductively isolated from other conspecific population units; and (2) It must represent an important component in the evolutionary legacy of the species.” Id. The first criterion—reproductive isolation—is based upon “movements of tagged fish, recolonization rates of other populations, measurements of genetic differences between populations, and evaluations of the efficacy of natural barriers.” Id. The second criterion—the population‘s contribution to the evolutionary legacy of the species—is based upon “the ecological/genetic diversity of the species as a whole. In other words, if the population became extinct, would this event represent a significant loss to the ecological/genetic diversity of the species?” Id.
Five years later, NMFS and the U.S. Fish and Wildlife Service adopted a joint policy which slightly modified the three factors to be considered in a listing decision for a “distinct population segment.” The joint policy (the “1996 DPS policy“) describes these factors as (1) the “[d]iscreteness of the population segment in relation to the remainder of the species to which it belongs,” (2) “[t]he significance of the population segment to the species to which it belongs,” and (3) “[t]he
In 1993, NMFS concluded that hatchery fish could be part of the same ESU as natural fish. The agency issued an Interim Hatchery Policy which reasoned that “[g]enetic resources important to the species’ evolutionary legacy may reside in hatchery fish as well as in natural fish.” Interim Policy on Artificial Propagation of Pacific Salmon, 58 Fed. Reg. 17,573, 17,574 (Apr. 5, 1993). Hatchery fish otherwise meeting the two criteria for a natural population‘s ESU would nevertheless be excluded from that ESU, and not included in the listed species, if information indicated that:
(1) the hatchery population in question is of a different genetic lineage than the listed natural populations, (2) artificial propagation has produced appreciable changes in the hatchery population in characteristics that are believed to have a genetic basis, or (3) there is substantial uncertainty about the relationship between existing hatchery fish and the natural population.
Id. at 15,575.
Although hatchery fish could be part of the same ESU as natural fish, NMFS decided that, absent exceptional circumstances, only natural fish could be listed as endangered or threatened. See id. at 17,575 (“In general, [hatchery] fish will not be included as part of the listed species.“). NMFS decided that only those hatchery fish “considered to be essential for recovery [of the natural population]” could be listed alongside
The Interim Hatchery Policy lasted only until 2001, when Alsea Valley Alliance (“Alsea Valley“), the appellant in a companion case,4 successfully challenged NMFS‘s decision to distinguish between natural and hatchery fish for listing purposes, after finding both to be within the same ESU. Applying the Interim Hatchery Policy, NMFS had included nine hatchery populations of Oregon coast coho salmon within the same ESU as natural coho salmon, but had listed only the natural portion of the ESU as threatened. See
The district court agreed with Alsea Valley, concluding that “NMFS may consider listing only an entire species, subspecies or distinct population segment.” Id. at 1162. Because NMFS had placed the hatchery coho and the natural coho in the same ESU, the district court reasoned, NMFS was required to list both hatchery and natural coho as endangered,
Rather than appeal the district court‘s decision, NMFS revised its Interim Hatchery Policy to eliminate the distinction between natural and hatchery fish in listing determinations. After 162 days of public comment, NMFS issued a Final Hatchery Listing Policy on June 28, 2005. See Policy on the Consideration of Hatchery-Origin Fish, 70 Fed. Reg. 37,204 (June 28, 2005). That policy is a central subject of the present appeals.
The 2005 Hatchery Listing Policy reaffirms that hatchery fish may be part of the same ESU as natural fish, but alters NMFS‘s listing practices in several ways. To comply with Alsea I, the Hatchery Listing Policy provides that hatchery fish that are part of the same ESU as natural fish “will be included in any listing of the ESU.” Id. at 37,215. In addition, the Hatchery Listing Policy requires NMFS to consider the status of the ESU as a whole rather than the status of only the natural fish within the ESU when determining whether an ESU should be listed as endangered or threatened. Id. However, under the policy, a listing determination still places primary importance on the viability of natural, self-sustaining populations, providing that “[h]atchery fish will be included in assessing an ESU‘s status in the context of their contributions to conserving natural self-sustaining populations.” Id. The Hatchery Listing Policy also requires status determinations to be based upon abundance, productivity, genetic diversity, and spatial distribution of the ESU. Id. Noting that hatchery fish can be both helpful and harmful to natural fish, the policy also allows NMFS to use its discretionary authority via § 4(d) regulations to provide for the take of certain hatchery fish, even if the ESU to which they belong is listed as threatened. Id. at 37,215-16.
D
These appeals primarily involve NMFS‘s decision, in accordance with the 2005 Hatchery Listing Policy, to downlist a population of Upper Columbia River steelhead from endangered to threatened.
The Upper Columbia River steelhead is an inland steelhead ESU in the Columbia River Basin upstream from the Yakima River, Washington to the United States-Canada border, which suffered major population declines due to dam construction in the 1930s and 1940s. During the following decades, this steelhead ESU became homogenized due to hatchery practices and from the proliferation of hatchery fish. By 1997, NMFS had listed the steelhead as endangered based on low abundance, both in absolute numbers and in relation to the numbers of hatchery fish sharing the habitat. Listing of Several Evolutionarily Significant Units (ESUs) of West Coast Steelhead, 62 Fed. Reg. 43,937 (Aug. 18, 1997). In the 1997 “endangered” listing, NMFS referenced the effect of hatchery and harvest management as factors affecting the endangerment of the ESU.
In 2004, however, NMFS added hatchery populations to the Upper Columbia River steelhead ESU. Applying the 1993
Trout Unlimited and other environmental conservation organizations subsequently brought this action. They challenge (1) NMFS‘s rejection of Trout Unlimited‘s petitions to separate natural fish and hatchery fish into different ESUs, and (2) the downlisting of the Upper Columbia River steelhead ESU from “endangered” to “threatened.” As part of its second claim, Trout Unlimited argues that the 2005 Hatchery Listing Policy impermissibly requires NMFS to consider the status of the entire ESU rather than just the natural components of the ESU when making listing determinations. Trout Unlimited maintains that both NMFS decisions are arbitrary and capricious and thus unlawful under the Administrative Procedure Act and that both fail to employ “the best scientific and commercial data available” in violation of the ESA.
The Building Industry Association of Washington and other trade associations (the “Building Industry“) intervened, challenging NMFS‘s listing policies on opposite grounds.
All parties cross-moved for summary judgment on all claims. The district court granted summary judgment (1) to NMFS on Trout Unlimited‘s claim that NMFS impermissibly included natural fish and hatchery fish as part of the same ESU, (2) to Trout Unlimited on its claim that the Hatchery Listing Policy and the corresponding downlisting of the Upper Columbia River steelhead ESU from “endangered” to “threatened” violated the ESA, (3) to NMFS on the Building Industry‘s challenge to NMFS‘s policy, when making listing determinations, to assess hatchery fish “in the context of their contributions to conserving natural self-sustaining populations,” and (4) to NMFS on the Building Industry‘s claim that NMFS‘s decision to prohibit the “take” of only natural fish and hatchery fish with intact adipose fins violated the ESA. These timely appeals followed.
II
Before turning to the merits of Trout Unlimited‘s claims, we must resolve a disputed threshold issue: whether the Hatchery Listing Policy is entitled to deference under Chev-
We defer to the “administrative implementation of a particular statutory provision . . . when it appears that Congress delegated authority to the agency generally to make rules carrying the force of law, and that the agency interpretation claiming deference was promulgated in the exercise of that authority.” United States v. Mead Corp., 533 U.S. 218, 226-27 (2001). “Delegation of such authority may be shown in a variety of ways, as by an agency‘s power to engage in adjudication or notice-and-comment rulemaking, or by some other indication of a comparable congressional intent.” Id. at 227.6
If these conditions are met, we then ask “whether Congress has directly spoken to the precise question at issue.” Chevron, 467 U.S. at 842. “If the intent of Congress is clear, that is the end of the matter; for the court, as well as the agency, must give effect to the unambiguously expressed intent of Congress.” Id. at 842-43. If the statutory provision at issue is susceptible to multiple interpretations, “the question for the court is whether the agency‘s answer is based on a permissible construction of the statute.” Id. at 843.
We have previously held that NMFS‘s 1996 policy interpreting the statutory term “distinct population segment,” see supra at 3271, is entitled to Chevron deference. See Nw. Ecosystem Alliance v. U.S. Fish & Wildlife Serv., 475 F.3d 1136 (9th Cir. 2007). There, we pointed out that Congress “expressly delegated authority to the Service to develop criteria
Northwest Ecosystem is instructive. Here, as there, Congress delegated authority to NMFS to “make rules carrying the force of law.” See
We review NMFS‘s rejection of Trout Unlimited‘s petitions to split natural and hatchery fish into separate ESUs as well as the downlisting of the Upper Columbia River steelhead under the “arbitrary and capricious” standard. See
III
Keeping the appropriate standard of review in mind, we turn to Trout Unlimited‘s contention that NMFS improperly rejected its petitions to split natural and hatchery fish into separate ESUs. According to Trout Unlimited, lumping natural and hatchery fish together is contrary to the “best available science” because hatchery fish pose threats to wild fish: “[n]o hatchery has ever been shown to promote the long-term recovery of wild salmon, and countless studies document the harm that hatcheries have caused to wild populations.” Trout Unlimited also argues that “NMFS ignored scientific evidence that hatchery fish exhibit important differences from wild fish.” According to Trout Unlimited, “hatchery stocks are functionally distinct and reproductively isolated from naturally spawned populations.” 69 Fed. Reg. at 33,112. It concludes that NMFS should have separated natural salmon and hatchery salmon into different ESUs in order to advance the ESA‘s main goal of conserving natural populations.
[1] We disagree. In our view, Trout Unlimited‘s emphasis on the threats hatchery fish pose to natural fish collapses two analytically distinct phases of agency action: the initial decision regarding the composition of the ESU, and the subsequent decision whether to list the ESU. The composition phase is not influenced by whether hatchery fish threaten wild fish; it is concerned only with the “neutral” task of defining a species. See ESU Policy, 56 Fed. Reg. at 58,618; see also 70 Fed. Reg. at 37,215. In contrast, the second phase—the
Indeed, NMFS recognized this distinction when it denied Trout Unlimited‘s petitions to split natural and hatchery fish into separate ESUs:
NMFS recognizes that artificial propagation under certain circumstances can pose threats to natural populations. However, it is not appropriate to include a consideration of the threats faced by an ESU (such as any risks posed by artificial propagation) when determining what constitutes a species under the ESA. Rather, such an evaluation of threats is conducted after the “species” has been defined, and the likelihood of extinction for the defined species is being assessed.
69 Fed. Reg. at 33,112.
[2] To the extent that Trout Unlimited contends that the “definitional” phase should be influenced by the threats presented by hatchery salmon, we see nothing in the ESA that requires such a modification to NMFS‘s policies. NMFS has not abdicated its statutory duty to consider the effects of hatchery salmon on natural populations; it merely conducts that inquiry at a different stage. Indeed, the ESA itself implies that NMFS should evaluate the impact of hatchery fish at the listing stage rather than at the definitional phase. See
Nor are we persuaded that NMFS ignored scientific evidence regarding the genetic and behavioral differences between natural and hatchery fish. NMFS gave a reasoned explanation for rejecting Trout Unlimited‘s petitions, relying on its own science to conclude that:
[T]he petitioners’ argument that hatchery stocks are functionally distinct and reproductively isolated from naturally spawned populations is unsubstantiated. The derivation of hatchery stocks from local natural populations and the established practice of incorporating natural fish as hatchery broodstock results in hatchery and natural populations that share the same evolutionary genetic and ecological legacy. . . . The shared evolutionary legacy of certain hatchery stocks with natural populations does not support the exclusion of these hatchery stocks from ESUs containing natural fish.
69 Fed. Reg. at 33,112. NMFS supported its decision by referencing the two expert reports that formed the basis of its 2004 proposed listing determinations.
We will not second-guess NMFS‘s resolution of this scientific question. See Marsh, 490 U.S. at 377 (“Because analysis of the relevant documents requires a high level of technical expertise, we must defer to the informed discretion of the responsible federal agencies.” (internal quotation marks and citation omitted)). Nothing in the record suggests that NMFS‘s decision was uninformed or was arbitrary and capricious. Trout Unlimited and NMFS are engaged in a good faith disagreement that is supported by science on both sides; indeed, the amicus brief filed in this case argues that there is no scientific consensus concerning the relationship between
[3] Accordingly, we agree with the district court‘s conclusion that the denial of Trout Unlimited‘s petitions to split natural and hatchery fish into separate ESUs was not arbitrary and capricious.9
IV
We turn now to Trout Unlimited‘s claim that NMFS‘s listing policies, which resulted in the downlisting of the Upper Columbia River steelhead, violate the ESA because they base listing determinations on the status of the entire ESU (including hatchery fish) rather than the status of only the natural fish within the ESU. According to Trout Unlimited, basing listing determinations on the status of the entire ESU is arbitrary and capricious because the ESU‘s central purpose is to preserve natural populations rather than artificial ones. Trout Unlimited maintains that hatchery fish can give the misleading appearance of a well-stocked fishery when in fact the natural fish are endangered, resulting in improper downlistings. Trout Unlimited suggests that that is precisely what happened when
The district court agreed with Trout Unlimited, holding that the ESA is primarily concerned with preserving natural populations. The court thought that “the record does not support a conclusion that an assessment of the status of an entire ESU is an appropriate proxy for assessing the status of natural populations.” Accordingly, the district court concluded that listing determinations must be based on the status of only the natural components of the ESU.
[4] We agree with Trout Unlimited, with NMFS, and with the district court that the ESA‘s primary goal is to preserve the ability of natural populations to survive in the wild. As the district court put it, “[t]hat the purpose of the ESA is to promote populations that are self-sustaining without human interference can be deduced from the statute‘s emphasis on the protection and preservation of the habitats of endangered and threatened species.” See, e.g.,
[5] Despite Trout Unlimited‘s assertions, however, we are satisfied that the Hatchery Listing Policy is consistent with both the plain language of the ESA and with the statutory goal of preserving natural populations. The ESA requires NMFS to “determine whether any species is an endangered species or
[6] We are also persuaded that the Hatchery Listing Policy does not flout the statutory goal of preserving natural populations. Trout Unlimited casts the policy in an overly simplistic light, suggesting that, under the policy, an abundance of hatchery fish can transform an endangered species into a threatened or an unlisted one, even when the hatchery fish actually harm the natural fish. In fact, the policy does not operate in that simplistic way. Rather, it mandates a more complex evaluation process that considers both the positive and the negative effects of hatchery fish on the viability of natural populations. Indeed, the policy explicitly states that “NMFS will apply this policy in support of the conservation of naturally-spawning salmon and the ecosystems upon which they depend.” 70 Fed. Reg. at 37,215. The policy further states that “[h]atchery fish will be included in assessing an ESU‘s status in the context of their contributions to conserving natural self-sustaining populations.”
The policy lists a number of ways in which hatchery fish can positively or negatively affect the status of an entire ESU:
The presence of hatchery fish within the ESU can positively affect the overall status of the ESU, and thereby affect a listing determination, by contributing to increasing abundance and productivity of the natural populations in the ESU, by improving spatial distribution, by serving as a source population for repopulating unoccupied habitat, and by conserving genetic resources of depressed natural populations in the ESU. Conversely, a hatchery program managed without adequate consideration of its conservation
effects can affect a listing determination by reducing adaptive genetic diversity of the ESU, and by reducing the reproductive fitness and productivity of the ESU. In evaluating the effect of hatchery fish on the status of an ESU, the presence of a long-term hatchery monitoring and evaluation program is an important consideration.
We are also convinced that the Hatchery Listing Policy‘s method of assessing the status of an entire ESU, and NMFS‘s corresponding downlisting of the Upper Columbia River steelhead, were decisions based upon the best scientific evidence available.
“Where scientific and technical expertise is necessarily involved in agency decision-making, . . . a reviewing court must be highly deferential to the judgment of the agency.” Nat‘l Wildlife Fed‘n v. U.S. Army Corps of Eng‘rs, 384 F.3d 1163, 1174 (9th Cir. 2004). An agency‘s decision may be based on the best scientific evidence available even if the administrative record contains evidence for and against its decision. When not dictated by statute or regulation, the manner in which an agency resolves conflicting evidence is entitled to deference so long as it is not arbitrary and capricious. See The Lands Council, 537 F.3d at 993.
[7] Here, the process that led to the development of the Hatchery Listing Policy plainly involved “scientific and technical expertise.” Id. To evaluate the extinction risk faced by a particular ESU, the agency used the criteria identified by experts in the Viable Salmonid Populations Technical Memorandum. The agency also relied upon an expert report prepared by a Biological Review Team (“BRT“), which considered the extinction risk faced by the natural members
The record shows that NMFS approached the listing decision in a thoughtful, comprehensive manner that balanced the agency‘s concerns and goals. Because the downlisting occurred as a result of “substantial—though not dispositive—scientific data, and not on mere speculation,” Greenpeace Action, 14 F.3d at 1333, we are satisfied that the downlisting was not “arbitrary and capricious.” NMFS is entitled to decide between conflicting scientific evidence. See id. (“To set aside the Service‘s determination in this case would require us to decide that the views of Greenpeace‘s experts have more merit than those of the Service‘s experts, a position we are unqualified to take.“). It is not our role to ask whether we would have given more or less weight to different evidence, were we the agency. Assessing a species’ likelihood of extinction involves a great deal of predictive judgment. Such judgments are entitled to particularly deferential review. The Lands Council, 537 F.3d at 993.
[8] Accordingly, the district court‘s grant of summary judgment to Trout Unlimited on its claim that the Hatchery Listing Policy and the downlisting of the Upper Columbia River steelhead violated the ESA was erroneous. On remand, the
V
We now turn to the arguments of the intervenors, who attack NMFS‘s policies from the opposite angle. While Trout Unlimited contends that NMFS impermissibly conflates hatchery and naturally spawned salmon, the Building Industry argues that NMFS impermissibly distinguishes between hatchery and naturally spawned salmon.
A
The lynchpin of the Building Industry‘s argument is that the ESA‘s plain language bars NMFS from making any distinction, at any stage of the listing process, between hatchery and naturally spawned fish. Once an ESU is defined to include both hatchery and naturally spawned fish, the Building Industry contends that any further differentiation within the ESU is error. Thus, the Building Industry maintains that considering hatchery and naturally spawned fish separately during the listing process violates the ESA—a violation exacerbated by the fact that analysis of the hatchery fish is limited to their contributions to “conserving natural self-sustaining populations.” 70 Fed. Reg. at 37,215.
The Building Industry supports its claim in several ways. First, it points to the ESA‘s text, arguing that under that statute‘s “clear terms,” any distinction between hatchery and naturally spawned salmon is impermissible. The “clear terms” referenced by the Building Industry are the ESA‘s definition of a “species,” see
Second, the Building Industry relies upon the ESA‘s legislative history. The original text of the ESA defined “species” to include “any subspecies of fish . . . and any other group of fish . . . of the same species or smaller taxa in common spatial arrangement that interbreed when mature.” Endangered Species Act of 1973, Pub. L. No. 93-205, § 3(11), 87 Stat. 884, 886. When Congress amended the definition of species in 1978 to replace “smaller taxa” with “distinct population segment,” legislative reports indicated that the definition now “would exclude taxonomic categories below subspecies [i.e., smaller taxa] from the definition.” H.R. Rep. No. 95-1804, at 17 (1978) (Conf. Rep.), reprinted in 1978 U.S.C.C.A.N. 9484, 9485. According to the Building Industry, this change meant that while NMFS could no longer list portions of a species based on genetics, listing portions of a species on the basis of geographic range was permissible. The Building Industry concludes that this change eliminated NMFS‘s ability to differentiate among members of a species which swim side-by-side in the same streams.
Third, the Building Industry repeatedly draws on the district court‘s opinion in Alsea I, which held that NMFS may not distinguish between natural fish and hatchery fish when listing an ESU. Essentially, the Building Industry contends that the Hatchery Listing Policy is flawed for the same reason as the Interim Policy: “distinction between members of the same ESU/DPS is arbitrary and capricious because NMFS may consider listing only an entire species, subspecies, or [DPS/ESU] of any species.” Alsea I, 161 F. Supp. 2d at 1162.
[9] We reject each of these arguments. We do not agree that the Building Industry‘s arguments are grounded in the “clear terms” of the ESA. The two provisions relied upon—
Likewise, the legislative history does not establish the “clear intent” of Congress. Nothing in the reports cited by the Building Industry addresses how biological distinctions—such as those between hatchery and naturally spawned salmon—should affect the process by which NMFS makes its listing determinations. If NMFS were attempting to list something less than a ESU, the Building Industry‘s arguments might have some merit. However, no party in this case claims that NMFS has listed anything but an entire ESU.
Nor do we find persuasive the Building Industry‘s claim that these cases are controlled by what the district court correctly deemed an “expanded interpretation of the Alsea [I] decision.” Alsea I does not stand for the “equal treatment” requirement proposed by the Building Industry.10 Rather, Alsea I stands for the separate and distinct proposition that once NMFS determines that hatchery and naturally spawned salmon belong to the same ESU, it may not list the naturally spawned portion to the exclusion of the hatchery portion of
[10] The Chevron deference we owe to the agency‘s position confirms our conclusion. The ESA requires that the agency “shall by regulation . . . determine whether any species is an endangered species or a threatened species.”
[11] Here, the agency‘s construction is eminently reasonable and in accord with the statutory text. The ESA requires only that status reviews evaluate an entire species (here, ESU). See
Moreover, the Hatchery Listing Policy complies with the express purpose of the ESA to preserve “the ecosystems upon which endangered and threatened species depend,”
[12] Accordingly, the district court‘s ruling that NMFS permissibly distinguishes between hatchery and naturally spawned salmon during the status review process was correct.
B
For many of the reasons discussed above, the Building Industry also argues that NMFS may not distinguish between hatchery and naturally spawned fish when issuing § 4(d) protective regulations. Again, the Building Industry asserts that the language of the ESA, legislative history, and Alsea I mandate equal treatment among members of the same ESU. If one portion of a ESU is protected from taking, the Building Industry maintains, all portions must be protected.
NMFS‘s authority to issue protective regulations is found in
The Building Industry‘s challenge to these regulations fails for essentially the same reasons as its attack on the listing determinations. Nothing in the text or legislative history of the ESA requires equal treatment for members of the same ESU. See supra 3288-91. Moreover, nothing in the record indicates that NMFS considered anything but the status of entire ESUs in issuing these regulations.12
[13] The flaws in the Building Industry‘s insistence on equal treatment between hatchery and naturally spawned salmon are especially apparent in this context. The Building Industry‘s position fails to consider NMFS‘s findings that hatchery fish can help or hinder the viability of a ESU as a whole. See 70 Fed. Reg. at 37,195 (describing the benefits and adverse effects of hatchery fish and noting that “[n]ot all hatchery stocks considered to be part of listed ESUs are of
[14] Accordingly, the district court‘s ruling that the challenged § 4(d) regulations permissibly distinguish between hatchery and naturally spawned salmon was proper.
VI
Based on the foregoing, the opinion of the district court is AFFIRMED in part, REVERSED in part, and REMANDED with instructions.