Pengaruh Perbedaan Konsentrasi Pupuk Organik Cair terhadap Biomassa dan Populasi Cacing Sutera (Tubifex SP.)

The research aims to know the influence of different liquid organic fertilizer concentrations on the population and biomass of silk worms (Tubifex sp.). Research was conducted in the field laboratory of BDP – Panteriek, Lueng Bata District, Banda Aceh in February 2016. This research used the experimental method with Completely Randomized Design. The different concentrations were : 0, 5, 10, 15 ml, for 30 days. The results showed that the biomass ranged from 2,70 ± 0,16 to 16,27 ± 0,83 g, the silk worms population ranged from 6.784 ± 83 to 14.029 ± 445 ind. The highest values for all parameters were obtained at treatment D which was 15 ml. The ANOVA showed that the adding of organic liquid fertilizers has significant effect againt the biomass and population of silk worms (Tubifex sp.). Duncan's test showed that the value of the biomass and population of silk worms (Tubifex sp.) on treatment D (15 ml) showed significant different to other treatments. Based on the results of the study it can be concluded that the addition of liquid organic fertilizers increase the production of biomass and population of the silk worms (Tubifex sp.)

Pertumbuhan dan Kelangsungan Hidup Benih Ikan Nila Gesit (Oreochromis Niloticus) pada Sistem Akuaponik dengan Jenis Tanaman yang Berbeda

Aquaponics system is a farming system which saving land use and improving the efficiency of nutrient utilization of residual feed and fish metabolism. This system is environmentally friendly fish farming. This research was aimed to measure the growth and survival rate of tilapia (Oreochromis niloticus) on the use of Aquaponics system with different plant species. The difference treatment consisted of four treatments and three repetitions which used plant kale, collards, lettuce and control. Research results for the 30 days of maintenance showed that the increase in the absolute highest weight value by 7.16 ± 0.94 g, the length was 4.53 ± 0.78 cm, the specific growth rate (SGR) was 2.36 ± 0.079 g / day and the survival rate of fish was 95 ± 5.00 % found in treatment plants using kale, while the lowest value was in the control treatment. ANOVA test results showed that the maintenance of the Aquaponics system with different plants did not significantly affect the growth of absolute weight, the length, the specific growth rate (SGR) and survival rates of tilapia agile (P> 0.05). The quality of water in all treatments generally described that the range were still running in tolerance limit and were not harmful to the growth of tilapia

Kombinasi Pemberian Pupuk Kotoran Kuda dengan Pupuk Limbah Kulit Kopi terhadap Pertumbuhan dan Biomassa Azolla Microphylla

The objective of the present study was to analyze the effect of combination of horse manure fertilizers with fertilizer waste coffee leather towards growth and biomass production of Azolla microphylla as well as to analyze the protein contained in the A. microphylla. This research was conducted in the Unit Pelaksana Teknis Balai Benih Ikan Lukup Badak, Dinas Peternakan dan Perikanan, Kabupaten Aceh Tengah in February to March 2016. This research uses experimental methods of Rancangan Acak Lengkap (RAL) consisting of 5 treatments and 4 replicates. The medium used is the pool tarp sized 100x100x30 cm. The treatment is given is A: (horse manure 100%), B: (horse manure 75% + fertilizer waste coffee leather 25%), C: (horse manure 50% + fertilizer waste coffee leather 50%), D: (horse manure 25% + fertilizer waste coffee leather 75%), E: (fertilizer waste coffee leather 100%), with initial seed stocked A. microphylla 20 gram/m2 for 21 days. The results showed that the highest value on each parameter contained in the treatment A= (horse manure 100%), protein content of 26.74%. Anova test results showed that giving a combination of horse manure with fertilizer waste coffee leather real effect against doubling time, relative growth rate, extensive cover area, fresh biomass, biomass dry and density of A. microphylla (P < 0.05). Based on the results of this study it can be concluded that the granting of horse manure with fertilizer waste coffee leather can increase growth and biomass Azolla microphylla

The Effects Of Red Yam Flour (Ipomoea Batatas L.) On The Growth, Survival Rate And Skin Color Of Goldfish (Carrasius Auratus)

This study evaluated the effects of commercial diets supplementedwith 0%, 3%, 6%, 9%and 12% red yam flour (Ipomoea batatas L.) on the growth, survival rate and skin colour of goldfish (Carrasius auratus). A completely randomized experimental design was developed with five treatments and three replicates. Seventy-five goldfish with the average initial length of 4.4 cm were assigned to fifteen experimental tanks. The experiment had lasted for twenty-eight days. The results showed that the growth and survival rate were not significantly affected by dietary treatments (P &gt; 0.05). However, red yam flour significantly affected the skin color of goldfish with the best concentration of 9%.It was concluded that the dietary administration of red yam flour of 9% was found to be a suitable dietary supplementation to ensure skin pigmentation as well as there were not bad effects on fish growth and survival rate

Carbon stock estimation of mangrove ecosystem in the Kuta Raja Subdistrict, Banda Aceh, Aceh Province

Mangroves play a crucial role in maintaining the environmental balance through their ability to absorb and store carbon. This study aimed to analyze carbon storage in mangrove ecosystems, including aboveground biomass, belowground biomass, deadwood biomass, and organic soil material. The sampling method used in this research was purposive sampling to select three observation stations. The results of this research indicate that the biomass of mangrove tree stems in the Kuta Raja Subdistrict, Banda Aceh, was 117.9 tons/ha, which was the highest value compared to the roots at 47.2 tons/ha, and deadwood at 2.2 tons/ha, as part of carbon storage in mangrove plants. The carbon stock at the research site was highest in mangrove tree at 55.43 tons/ha, followed by mangrove root at 22.17 tons/ha, and deadwood at 1.04 tons/ha, and organic soil material at 2.7 tons/ha. The total carbon stock of the mangrove ecosystem was 81.37 tons/ha

The growth performance of common carp (Cyprinus carpio) co-cultured with different vegetable plants in aquaponics system

A 28-days trial was conducted in an aquaponics culture system to determine the effect of the different vegetable plants application on the growth performance and survival rate of common carp (Cyprinus carpio). Common carp seeds were obtained from local fish farmers in Aceh Besar District. A total of 360 common carp fingerlings (size 3-5 cm) were used and placed in 12 containers with the capacity of 80 L each. The study used four treatments, namely A (control), B Kale (Ipomoea aquatica), C Lettuce (Lactuca sativa), and D Pakcoy (Brassica rapa subsp. chinensis), with three replications for each treatment. The result showed that different vegetable plants' applications significantly affected (P 0.05) the absolute weight gain, absolute length gain, and survival rate of common carp fingerlings. The highest value obtained was in treatment B (Ipomoea aquatic) with an absolute weight gain of 3.93 ± 0.28 g, absolute length gain of 3.81±0.21 cm, and survival rate of 100±0.0%, while the lowest was in treatment A (control) with an absolute weight gain of 1.21±0.76 g, absolute length gain of 1.70±0.10 cm and survival rate of 91±0.86%. Water quality was also collected in this study and the parameters during rearing were still within the tolerance limits of common carp rearing. Therefore, it can be concluded that the Kale plant, Ipomoea aquatica is the most recommended vegetable plant to be co-cultured with common carp in the aquaponics system.Keywords:AquaponicsCommon CarpVegetable Plant

Condition of coral reef in Batee Island waters, Peukan Bada Sub-District, Aceh Besar

Batee Island is one of the small islands in the Aceh Besar region and is uninhabited and directly faces the Indian Ocean. Batee Island's waters have the potential for marine biota, especially coral reef ecosystems, and other associated biotas. This study aims to determine the percentage and comparison of live coral cover in Batee Island waters and determine the genus' composition in Batee Island waters. This research was conducted in October-November 2016. Collecting coral reef data using the LIT (Line Intercept Transect) method. The results showed that the live coral cover in Batee Island's waters differed between the East and West Batee Islands. The coral reefs' average condition in Batee Island waters at shallow depths (0-5m) is 41.41%, and deep (6-10m) is 36.52%. Overall, the conditions and live coral cover in the waters of Batee Island are classified as moderate. In the waters of Batee Island, there are 31 coral genera. The highest percentage of corals was the genus Acropora (50.02%).Keywords:Batee IslandConditionCoral reefCoral cove

Determine the fishing season of scad (Decapterus sp.) landed at Pusong Fish Landing Base, Lhokseumawe, Indonesia

The scad (Decapterus sp.) is one species commonly caught using purse seine and landed at the Pusong Fish Landing Base, Lhokseumawe, Aceh. The fishermen at this site do not have accurate knowledge about the fishing season of the scad, which leads them to miss out on peak fish catching season and increases the ambiguity about the fish landing data. The goal of this research is to compute the trend of Catch Per Unit Effort (CPUE) for scad fisheries over the last five years (2013-2017) and to examine the fishing season trends of scad landed at Pusong fish landing base. This study took place at the Pusong Fish Landing Base in August 2020. The moving average approach was used to process catch data from 2013 to 2017. Primary and secondary data about scad production and number of fishing trips were used to compile the research findings. The results showed that the CPUE for purse seine catch landed at Pusong Fish Landing Base varies from year to year. The highest CPUE value was recorded in 2015 with 442,534 kg/trip, and the lowest was in 2013 with a value of 27,674 kg/trip. The fishing season index for Scad (Decapterus sp.) has a high rating, indicating that this fish species can be caught all year. Based on the fishing season identification criteria, the fishing season index value greater than 100% indicates the peak season. Results from this research indicate that the peak season for scad landed at Pusong Fish Landing Base occurs in July, August, September, October, and November, with their index values of 151%, 146%, 119%, 122%, and 126% respectively. A fishing season index score of less than 100% indicates low season, this was recorded for January, February, March, April, May, June, and December (48%, 97%, 57%, 90%, 62%, 86% and 97%).Keywords:ScadFishing Season IndexCPU

Fishing season of large pelagic fish in Idi Rayeuk waters, East Aceh, Indonesia

Large pelagic fish live on the water surface in groups. Skipjack tuna (Katsuwonus pelamis), yellowfin tuna (Thunnus albacares), mackerel tuna (Euthynnus affinis), mackerel (Scomberomous guttatus) are species of fishes that mainly catches by fishermen using purse seines. This study aims to determine the length and weight of large pelagic fish in the water of Idi Rayeuk and best the fishing season. This research was conducted in one month. Fish samples were collected from fishermen that used purse seine and landed their catches at the Idi Rayeuk Fishing Port, East Aceh. Additionally, the data was derived from the fishing port time-series during 2015 to 2019. The result showed that the yellowfin tuna (Thunnus albacares) has a length between 37 - 58 cm with a weight of 1.0 - 3.2 kg, skipjack tuna (Katsuwonus pelamis) 32 - 58 cm in length and weight 0.5 - 3.0 kg, mackerel tuna has 33 - 54 cm of length with a weight of 0.6 - 2.5 kg, and mackerel has 44 - 66 cm of length and weighing 0.7 - 1.7 kg. Its also found that the peak season for catching yellowfin tuna (Thunnus albacares) and mackerel tuna is May and June, and the lowest season in December for the yellowfin tuna, and December and January for the mackerel tuna. The peak season for skipjack fishing occurs in May, August, and October, and the low season occurs in November and December. Meanwhile, the peak season for fishing mackerel occurs in May, September, and October, while the low season occurs in January, February, and March.Keywords:Fishing seasonLarge pelagicPurse seineIdi RayeukAce

SEDIMENT DISTRIBUTION ANALYSIS IN BALOHAN BAY, SABANG

We investigated the sediment properties and distribution in Balohan Bay, which is located in southern Weh Island, Aceh Province. The aim of this research was to clarify the sediment distribution mechanism in the Balohan Bay using a statistical approach. Samples were collected on January 2016 using coring method. Sediment grain-size distribution from 14 stations was obtained using wet sieve analysis. A large amount of fine sand and very fine sand were found in Balohan Bay, as a result of several tributaries discharged in those areas. The sediment distribution in eastern stations showed an indication as a coarser size and a poorer sorted area, as they were adjacent to the steep cliff