<p><strong><em>Abstract. </em></strong><em>The </em><em>aim</em><em>of this study was to </em><em>evaluate </em><em>the condition of coral reefs and macro invertebrates at Ujong Pancu</em><em>, Aceh Besar District</em><em> </em><em>The s</em><em>tudy was carried out from </em><em>A</em><em>pril </em><em>to May 15</em><em>2012. Coral cover</em><em>age was </em><em>observed by using Point Intercept Trancect method and Visual census techniq</em><em>ue</em><em> for macro invertebrates. </em><em>There was </em><em>50% of hard coral cover</em><em>age</em><em> recorded in three observation locations. The </em><em>predominant </em><em>genus </em><em>wa</em><em>s </em><em>A</em><em>cropora with </em><em>a </em><em>percentage</em><em> of </em><em> more than </em><em>5</em><em>0% at </em><em>all </em><em>location</em><em>s</em><em>. The abundance of macro invertebrates</em><em>was </em><em>range</em><em>d</em><em> from 3.75 to 7.75 ind/tran</em><em>s</em><em>ect. The </em><em>most </em><em>abundan</em><em>t</em><em> macro invertebrates was </em><em>D</em><em>iadema setosum with percentage </em><em>of </em><em>more than 40% at each location. The diversity ind</em><em>ex </em><em>(H’) of coral reefs </em><em>and macro invertebrates were </em><em>range</em><em>d</em><em> from </em><em>0.74 - 1.36 and 0.98 – 1.5</em><em>, respectively</em><em>. In general</em><em>,</em><em> the condition of coral reefs and macro invertebrates in Ujong Pancu was in good condition. </em><em></em></p><p><strong><em>Keywords</em></strong><em>: Coral reefs; Macro invertebrates; Ujong Pancu.</em><em></em></p><p><em> </em></p><p><strong>Abstrak. </strong>Penelitian ini bertujuan untuk mengetahui kondisi terumbu karang dan makro invertebrata di Ujong Pancu. Penelitian ini dilakukan pada bulan April hingga Mei 2012. Tutupan karang diamati dengan menggunakan Metode <em>Point Intercept Transect </em>(PIT) dan makro invertebrata diamati dengan menggunakan metode Teknik<em>Visual Sensus</em>. Hasil penelitian ditemukan bahwa lebih dari 50% tutupan karang keras pada ketiga stasiun pengamatan. Genus yang paling mendominasi pada ketiga stasiun adalah <em>Acropora </em>dengan persentase lebih dari 20% pada setiap stasiun pengamatan. Kelimpahan makro avertebrata berkisar antara 3,75 hingga 7,75 ind/transek. Kelimpahan makro invertebrata terbesar adalah <em>Diadema setosum</em> dengan persentase lebih dari 40% pada setiap stasiun pengamatan. Indeks keanekaragaman (<em>H’</em>) karang dan makro investebrata berkisar antara  0,74 - 1.36 dan 0,98 – 1,5 secara berurutan. Secara umum berdasarkan indeks yang digunakan, kondisi terumbu karang dan makro invertebrata di Ujong Pancu tergolong baik.</p>Kata kunci : Terumbu Karang; Makro avertebrata; Ujong Pancu.

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The groupers are among the fishes that are threatened globally due to their high economic value. However, their biological information is limited, including the white-edged lyretail (Variola albimarginata). The fish is considered as the least concern (LC) based on the IUCN category. The objective of the present study was to study some biological aspects of the white-edged lyretail harvested in the northern coast of Aceh. The fishes were collected in several fish landing sites (TPI) and fish market located in Banda Aceh and Aceh Besar District from June to August 2020. A total of 30 fish samples were collected in this study. The total lengths (TL) and weights (W) ranged between 14.30-36.02 cm and 33.2-581.6 g, respectively. In addition, 25 of collected fishes were female with the gonad maturity phases varied from one (1) to four (4) with the gonad-index (GSI) ranged between 0.1758-2.4038. The result of this study will be valuable in developing fisheries management and conservation of the species.

Background The objective of the present study was to determine the optimum dosage of probiotic in the diet of keureling fish ( Tor tambra) fry. Methods Lactobacillus casei from Yakult® was used as a starter, and enhanced with Curcuma xanthorrhiza, Kaempferia galanga and molasses. The mixture was fermented for 7 days prior to use as probiotic in a formulated diet containing 30% crude protein. Four levels of probiotic dosage; 0 ml kg -1 (control), 5 ml kg -1, 10 ml kg -1 and 15 ml kg -1 were tested in this study. The fish was fed twice a day at 08.00 AM and 06.00 PM at the ration of 5% body weight for 80 days. Results The results showed that growth performance and feed efficiency increased with increasing probiotic dosage in the diet from control (no probiotic) to 10 ml kg -1 of probiotic dosage and then decreased when the dosage was increased up to 15 ml kg -1. Conclusions The best values for all measured parameters were recorded at the dosage of 10 ml kg -1. Therefore, it was concluded that the optimum dosage of enhanced probiotic for T. tambra fry was 10 ml kg -1 of feed.

Considered as the least concern (LC) based on the IUCN category, the biological information of Epinephelus coioides is limited. The present study’s objective was to study some biological aspects of the orange-spotted grouper harvested in the northern coast of Aceh. The fishes were collected from June - August 2020 in several fish landing sites (TPI) and fish market located in Banda Aceh and Aceh Besar district. In total, 30 fish specimens were collected in this study. The total length (TL) of the fishes ranged from 194.1-237.6 mm. Also, the weight of the fishes ranged from 100.7-176.7 g. All the collected fishes were female with the gonad maturity levels in level one (1), with the average gonad weight of 0.01 g. This study provides a reference point of some biological aspects of the orange-spotted grouper that will help develop a practical fisheries management of the species.

Cephalopholis aurantia is one of the grouper species considered as the least concern (LC) based on the IUCN category. However, the data related to its biological features is limited. The present study’s objective was to study some biological aspects of the golden hind grouper harvested in the northern coast of Aceh. The fishes were collected from June - August 2020 in several fish landing sites (TPI) and fish market located in Banda Aceh and Aceh Besar district. In total, 24 fish specimens were collected in this study. All samples were small and young (between 103.1-240.0 mm TL and 60.6-267.5 g). In addition, all the collected fishes were female with the gonad maturity levels varied from stage I to stage IV with the gonad weight ranged from 0.01-2.00 gr. This study is providing baseline data of some biological aspects of the golden hind grouper that will be valuable in developing a practical fisheries management of the species.

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The information of the density and distribution pattern of Lingulasp. in Aceh Shore is infrequently recorded. Since Lingulasp. has important roles in ecosystem, the study of species density of Lingulasp.and its distribution pattern was conducted in two sites of Aceh northern shore which were UjongPancu Beach and Syiah Kuala Beach. The aim of this study was to figure out the density and distribution pattern of Lingulasp. Sampling was carried out by designing nine 1,0m x 1,0m plots at each station during April – May 2018. Results of study revealed that Lingulasp. at UjongPancu Beach is less denser than at Syiah Kuala Beach. The density range of Lingulasp.at UjongPancu Beach was 1.56 ind/m2- 2.89 ind/m2 while the density of Lingula sp. at the Syiah Kuala Beach was 3.78 ind/m2-5.44ind/m2. The distribution pattern of Lingulasp. at both stations was found as uniform distribution.