The Gladstone Healthy Harbour Partnership (GHHP) was established in May 2012 to assess the health of Gladstone Harbour following public concern about a range of fish health issues that emerged in 2011. The GHHP is responsible for producing an annual report card on the health of the harbour that includes social, cultural, economic and environmental health indicators. Fish recruitment and fish health were identified as important measures to inform the fish and crab indicator group. The objective of this study was to determine suitable species and develop a fish recruitment indicator for incorporation into the health grading for Gladstone Harbour. Following a trial survey in 2014–15, Yellowfin Bream (Acanthopagrus australis) and Pikey Bream (Acanthopagrus berda) were selected for the development of a fish recruitment indicator. A total of 26 sites in 13 zones were selected as survey sites. Surveys were undertaken using a standardised castnet method that had previously been used for recruitment surveys. Surveys were undertaken in 2015–16 and 2016–17. Historic data from surveys from 2011 to 12 to 2013–14 at a number of sites were also assessed to provide historic gradings. A modelling strategy using a negative binomial distribution was used to determine the total juvenile Bream catch per visit to a site. Bream productivity was initially assessed as Year × Zone in 2015–16 and Year × Site in 2016–17 and then averaged to provide a zone and a whole of harbour score on a 0–1 scale. This was then converted to an A-E grading to ensure consistence with the other indicators. Based on the grading score Bream recruitment was assessed for the whole harbour as D (poor) in 2015–16 and B (good) in 2016–17. The results from the 2 years of surveys, the trial survey and the historic surveys confirmed that Bream recruits provide a suitable fish recruitment indicator for the Gladstone Harbour report card.

格拉德斯通健康港伙伴关系（GHHP）成立于2012年5月，目的是在公众关注2011年出现的一系列鱼类健康问题之后，评估格拉德斯通港的健康状况。GHHP负责制作关于鱼类健康状况的年度报告卡。包含社会，文化，经济和环境健康指标的港口。鱼类招募和鱼类健康被确定为告知鱼类和螃蟹指标组的重要措施。这项研究的目的是确定合适的物种并开发鱼类招募指标，以纳入Gladstone Harbour的健康等级。在2014-15年进行了一项调查后，黄鳍Bre （Acanthopagrus australis）和皮基Bre（Pikey Bream）（Acanthopagrus berda选择）来开发鱼类招募指标。选择了13个区域中的26个站点作为调查站点。使用以前用于招聘调查的标准Castnet方法进行调查。在2015-16和2016-17进行了调查。还评估了2011年至12年至2013-14年在多个站点进行的调查的历史数据，以提供历史等级。使用负二项式分布的建模策略用于确定每次访问站点的少年Bre的总捕获量。呼吸生产力最初在2015-16年度被评估为Year×Zone，在2016-17年度被评估为Year×Site，然后将其平均以0-1的比例提供一个区域和整个港口得分。然后将其转换为AE等级，以确保与其他指标一致。根据等级评分，整个港口的呼吸道征募评估在2015-16年度为D（差），在2016-17年度为B（好）。两年调查，试验调查和历史调查的结果证实，Bre鱼征募人员为Gladstone Harbour报告卡提供了合适的鱼类招募指标。