OPINION

BOOCHEVER, Justice.

In 1973, the Alaska Legislature passed the Limited Entry Act, AS 16.43, for the purpose of regulating and controlling entry into the commercial fisheries "in the public interest and without unjust discrimination." The Act established the Commercial Fisheries Entry Commission (hereinafter "Commission"), which was given authority to "adopt regulations establishing qualifications for ranking applicants for entry permits according to the degree of hardship which they would suffer by exclusion from the fishery." In 1974, the Commission promulgated a priority classification point system.

Alan Younker, appellant, applied to the Commission for a Prince William Sound drift gill net entry permit in 1975. Younker claimed 19 points in his initial application. The Commission's initial review verified 15 points. Younker requested and received a hearing before one of the Commission's hearing officers. At that hearing, Younker claimed that he was entitled to 36 points. The hearing officer recommended classifying Younker with 15 points. After a hearing before the full Commission, the Commission adopted the hearing officer's recommendation. Younker appealed to the superior court, which affirmed. He now appeals to this court. We affirm.

Alan Younker and his brother, Michael, came to Alaska in 1969 with the intent to enter the state's fisheries. Alan worked as a school teacher to finance what the brothers viewed as essentially a partnership enterprise. Michael devoted his efforts to preparation for entry into the fisheries, working primarily on vessels and gear.

The brothers arrived in Alaska after the deadline for obtaining gear license permits for the 1969 fishing season. That fall, the two of them made a down payment of $500.00 on the Copper Belle, a vessel whose hull was in need of repair. After determining that the hull was too rusted to repair, they abandoned their efforts and forfeited the down payment. The Younkers never used the Copper Belle in Alaska's fisheries. In 1970, the brothers purchased a second vessel, the Capelin, which was located at the bottom of Valdez harbor. They raised the vessel and spent the 1970 fishing season repairing it. In 1971, they sold the Capelin and bought the Linda Marnell. In 1971, the brothers found that they did not have enough time to prepare the Linda Marnell for both gill netting and purse seining. Since purse seining was more lucrative, they opted to forego gill netting. In 1972, the Younkers took the Linda Marnell and a handcrafted skiff and entered the gill net fishery in Prince William Sound. On the voyage to deliver the catch from the first two-and-one-half day period, the Linda Marnell sank and all the fish were lost. Immediately, Alan and Michael acquired the Bifbia II, which they outfitted for use in the gill net fishery. The brothers' catch in the drift gill net fishery was very small. They converted the Bifbia II to purse seining and spent the remainder of the 1972 season using purse seine gear.

PAST PARTICIPATION POINTS

Alan Younker urges that his preparations for fishing in 1969, 1970 and 1971 should qualify as past participation in the fishery. Younker bases his argument on AS 16.43.250(a)(2), which provides that in awarding permits on the basis of "hardship," the Commission shall consider, as one factor, the applicant's "past participation in the fishery, including but not limited to the number of years participation in the fishery, and the consistency of participation during each year." Alan claims that the "including but not limited to" language embraces his preparatory efforts. The Commission defines "past participation" as "harvest[ing] the fishery resource commercially. . . ." 20 AAC 05.610(1). The Act does not define "past participation," but the only form of past participation made relevant to the determination of hardship under the Act is participation "in the fishery." AS 16.43.250(a)(2). The Legislature has defined "fishery," for purposes of the Act, as "the commercial taking of a specific fishery resource in a specific administrative area with a specific type of gear." AS 16.43.380(3). Thus, the Commission's definition of past participation coincides with the legislative view that hardship be measured according to the actual taking of fish in the past. Even if the "including but not limited to" language of AS 16.43.250(a) allows the Commission to expand upon the concept of participation, it does not require it to do so. We agree with the Commission that it was not required to give Younker participation points for years in which he did not fish.

We need not consider Younker's argument that the preferential treatment afforded gear license holders in the award of past participation and economic dependence points frustrates the purpose of the Act and discriminates against him. Younker has shown no injury from this preference.

EQUAL PROTECTION

Younker's constitutional challenge to the point classification system has two bases: that it unjustly discriminates against applicants who were not gear license holders in the years preceding the Limited Entry Act, and that it unfairly discriminates against those fishermen who elected to work during the off season. Younker has no personal stake in the outcome of his first claim; he did not lose points because he lacked a gear license, but because he did not participate in or depend on the fishery.

His second equal protection challenge fares no better. He attacks the Commission's income dependence percentage on the ground that it unfairly discriminates against fishermen who worked at alternative jobs in the off seasons in 1971 and 1972 and invested those earnings into the fishery. The Legislature enacted several criteria for assessing economic dependence, which, along with past participation, measures the hardship which would result from exclusion from the fishery. These criteria include "percentage of income derived from the fishery, reliance on alternative occupations, availability of alternative occupations, [and] investment in vessels and gear; . . ." AS 16.43.250(a)(1). The Commission did no more than to enact points for these factors.

Younker does not allege that any federally recognized fundamental right or suspect classification is implicated by the challenged regulations. The test we apply in our equal protection analysis is, therefore, the one we delineated in State v. Erickson, 574 P.2d 1, 11-12 (Alaska 1978). In Erickson, we explained and reiterated our earlier decision in Isakson v. Rickey, 550 P.2d 359 (Alaska 1976), in which we held that classifications challenged on equal protection grounds

must be reasonable, not arbitrary, and must rest upon some ground of difference having a fair and substantial relation to the object of the legislation, so that all persons similarly circumstanced shall be treated alike.

Id. at 362 (footnote omitted, emphasis added), quoting State v. Wylie, 516 P.2d 142, 145 (Alaska 1973). In Erickson, we further explained that this

test will be flexible and dependent upon the importance of the rights involved. Based on the nature of the right, a greater or lesser burden will be placed on the state to show that the classification has a fair and substantial relation to a legitimate governmental objective.

574 P.2d at 12.

The point scheme is reasonable and not arbitrary. It provides for consideration of all the factors which the Legislature thought relevant to economic dependence. The income dependence percentage bears a fair and substantial relation to the object of the Act. It would seem axiomatic that an applicant with a higher income dependence percentage has a greater degree of dependence on the fishery for income, and would therefore tend to suffer greater hardship by exclusion than would an applicant with a lower income dependence percentage, who has a greater reliance on alternative occupations and is less dependent on the fishery. If income from alternative occupations is invested into the fishery, the applicant receives recognition of that investment by being awarded points for ownership of vessels and gear. It cannot reasonably be argued that the percentage of income derived from the fishery is substantially unrelated to the hardship an applicant would suffer by exclusion from the fishery. The regulations complained of are not facially unconstitutional.

Younker received six points (the maximum) for his investment in gear and vessels. He received four points (again, the maximum) for unavailability of alternative occupations, notwithstanding the fact that he was employed as a schoolteacher. He argues, however, "that the Commission's `income dependence percentage' creates an irrebuttable presumption that all nonfishing income is evidence of reliance on alternative occupations." Younker claims that because he invested more money into the fishery than he received from teaching, he cannot be held to have relied on his teaching income. The argument is specious. Plainly, Younker was at least partially dependent on his teaching or other nonfishing income for survival, since he was not supporting himself by fishing. The regulations do not discriminate unfairly against Younker as applied.

UNAVOIDABLE CIRCUMSTANCES POINTS

The regulations provide:

[I]f unavoidable circumstances exist such that an applicant's past participation in the fishery is not realistically reflected by points awarded for past participation for the years 1960 through 1972, the commission may award an applicant up to a maximum of 16 points upon a special showing of past participation during the years 1960 through 1972; . ..

20 AAC 05.630(a)(5).

Younker claims that the Commission abused its discretion in denying him past participation points due to unavoidable circumstances in 1969, 1970 and 1971. There was no evidence that Younker made any attempt to enter the fishery before the end of the 1969 season. He and his brother did not purchase the Copper Belle until September or October of that year. There would be no basis for awarding points for 1969. The Younkers did not fish in 1970. Instead they worked on the Capelin, which they had salvaged from the bottom of Valdez Harbor. The hearing officer recommended that Younker receive past and consistent participation points for purse seining in 1970, but not for gill netting. The hearing officer's reasoning was that, while work on the boat would explain the one-year delay of Younker's entry into the purse seine fishery, there was no unavoidable circumstance that prevented Younker from participating in the drift gill net fishery in 1971. Younker did not enter the gill net fishery until 1972 and he passed up the gill net season in 1973. There is substantial evidence to support the finding that, while Younker "had some degree of intention to eventually enter the drift gill net fishery, he did not have a specific unequivocal intention to fish in any given year until 1972." In 1971, the Younkers, having disposed of the Capelin, bought the Linda Marnell. Because Alan Younker was teaching, he had insufficient time to prepare this vessel for both gill netting and purse seining. Since purse seining was more lucrative, he passed up the gill net season in 1971. The circumstances surrounding his failure to gill net in 1971 were not unavoidable. He could have quit his teaching job and entered the gill net fishery on the Linda Marnell. Instead, he made his election to forego gill netting. While it may have been a sensible election, it was not the only one available to him. Again, the evidence supports the hearing officer and the Commission.

SPECIAL CIRCUMSTANCES POINTS

Section 20 AAC 05.630(b)(2) provides that:

[I]f special circumstances exist such that an applicant's income dependence is not realistically reflected by his income dependence percentage for the years 1971 and 1972, the commission may award an applicant up to a maximum of 10 points based on a special showing of income dependence; . . .

Younker claims that the Commission abused its discretion by not awarding him income dependence points for 1972 under the special circumstances regulation. Younker's boat sank after the first two days of fishing in 1972. He received past and consistent participation points for 1972 under the unavoidable circumstances provision. In order to qualify for income dependence points under the special circumstances regulation, Younker needed to show that his "income dependence percentage" would have been 50 or above. In other words, Younker would have to have grossed as much money fishing as he did teaching. In 1972, Younker earned $13,039.00 as a school teacher. The hearing officer concluded that Younker would not have qualified for income dependence points even if he had completed the 1972 fishing season. This finding was based, in part, on data showing that less than six percent of the boats gill netting in the Prince William Sound area in 1972 grossed more than $13,000.00. The hearing officer's conclusions were accepted by the Commission. Younker claims that the Commission should have taken the catch value of the fish he caught before the Linda Marnell sank, estimated by him to be $7,000.00, and multiplied that figure by the number of periods he would have fished, which he claims to be four. We find this argument unpersuasive. First, we note that half the catch belonged to Younker's brother. Second, since the boat sank, there was no way to verify the value of the catch. Third, Younker presented no evidence to buttress his assertions that many of the 489 licensed participants in the 1972 fishery "no doubt participated in only a small part of the season . . . [or were] recreational fishermen and others who were not seriously seeking to maximize their harvest." Similarly, there was no evidence that the Copper River Flats area was, as Younker claims, any more productive than the rest of Prince William Sound. Finally, Younker did not allege or show that his income in other years followed the formula he suggests. He had the burden of showing that special circumstances affected his income dependence percentage. In the absence of any evidence to support his claim, there was no abuse of discretion by the Commission in adopting the finding that he would not have been likely to achieve a 50 percent income dependency by gill netting the entire season.

The judgment of the superior court is AFFIRMED.

MATTHEWS, J., not participating.