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Aquacoastmarine
Published by Universitas Sumatera Utara
ISSN : -     EISSN : -     DOI : -
Core Subject : Education,
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Jurnal AQUACOASTMARINE merupakan jurnal ilmiah yang diterbitkan berkala secara online yang dikelola oleh Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian, Universitas Sumatera Utara, berisikan hasil-hasil penelitian tentang Pengelolaan Sumberdaya Pesisir dan Konservasi Sumberdaya Perairan, Kualitas Air serta Budidaya Perikanan.
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Articles 350 Documents
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Identifikasi Jenis Gastropoda di Ekosistem Lamun Pantai Pandaratan Kabupaten Tapanuli Tengah Provinsi Sumatera Utara Tengku Hannifa Husny; Amanatul Fadhilah
AQUACOASTMARINE Vol 6, No 3 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Pandaratan Beach is located in Pondok Batu area, Sarudik Subdistrict and Central Tapanuli Regency which is a region full of seagrass beds with various roles for sustaining and developing aquatic biota especially Gastropods. Gastropods has an important role for nutrient cycle in the bottom of the water. The research aims to determined the diversity ofGastropods on seagrass at Pandaratan Beach. The research was conducted in Pandaratan Beach, Sarudik Subdistrict, Central Tapanuli Regency, North Sumatera Province from March until April 2018. The diversity of Gastropods can be assessed by looking from the factor ofspecies abundance and relatives, equibility index, diversity index, and domination index. The result shows 287 individuals consist of 17 families and 21 species. The most dominating Gastropods in first and second station is Polinices mammilla and in the third station is Strombus gibberulus. The value of diversity index (H’) of all stations is categorized in medium class of which score is 2,28-3,34. The value of equibility index (E) of each station is categorized in medium class of which score is 0,74-0,76. While the value of domination index (C) of all stations is categorized in low class of which score is 0,14-0,15. The diversity of Gastropods in seagrass ecosystem at Pandaratan Beach is in good condition.Keywords ; Gastropods, Seagrass, Diversity, Pandaratan Beach
KELIMPAHAN DAN PERTUMBUHAN IKAN GULAMAH (Johnius trachycephalus) DI PERAIRAN ESTUARISUAKA MARGASATWA KARANG GADING KABUPATEN DELI SERDANG Dean Amunike; Desrita Desrita
AQUACOASTMARINE Vol 6, No 3 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The aim of this research is to determine the abundance and growth of Gulamah fish (Johnius trachycephalus) in estuaries of Suaka Margasatwa Karang Gading of Deli Serdang Regency. Sampling was carried out at 3 research stations and for 60 days starting from March to May 2018. Fish was caught with fishing gear mini trawl ring. Water quality measurements was carried out in situ. Overall, the condition of the estuaries of Suaka Margasatwa Karang Gading of Deli Serdang Regency was still above the water quality standard. The highest abundance occurs in station II, because station II was composed of natural ecosystems, namely mangroves. The value of the length and weight of Gulamah fish at each station was allometric negative with a value of b <3 and the condition factor value of each station shows a value of FK> 1, which indicates that the condition of Gulamah Fish in estuaries of Suaka Margasatwa Karang Gading of Deli Serdang Regency can morphologically said to have a good fortune.Keywords: Abundance, Aquatic Conditions, Growth, Gulamah Fish
Studi Keanekaragaman Gastropoda Sebagai Bioindikator Perairan di Pantai Sialang Buah Kabupaten Serdang Bedagai Provinsi Sumatera Utara Beby Aulia Kesuma Wardani; Ipanna Enggar Susetya
AQUACOASTMARINE Vol 6, No 3 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Sialang Buah Beach is a coastal area which of the waters used by the comunity for doing household activitiy, fishing activity and tours activity. Activities carried out at Sialang Buah Beach will influence gastropods variety and the water quality at the beach. Gastropods as organisms live at the waters are very sensitive to the alteration of water quality where they live. The degradation of water quality will reduce the wealth of natural resources in the waters. This study aimsed to discover gastropods variety as well as waters condition at Sialang Buah Beach District of Serdang Berdagai North Sumatera Province viewed from ABC curve and Storet Index. This Study was conducted between April – May 2018 applying purposive sampling method divided to 3 stations. The result showed that the Index of diversity (H’) was in “modrate” category, index of evennes (E) was in “high” category and index of dominance was in “no dominance”. And according PP No. 82 Year 2001 About The Management of Water Quality and Water Pollution Control, and by using Storet Index reveal that the water condition at Sialang Buah Beach declared as contamined in “medium” category and based on ABC curve (Abundance and Biomass Comparison) reveal that the water condition declared as contamined in “medium” category with the density curve and the biomass overlapping each other.Key Words: Sialang Buah Beach, Gastropods, ABC Curve, Storet Index
Pengaruh Pemberian Pakan Alami yang Berbeda terhadap Pertumbuhan dan Kelangsungan Hidup Larva Ikan Cupang Hias (Betta splendens) Armando Oscar Simbolon; Syammaun Usman
AQUACOASTMARINE Vol 6, No 3 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Betta spendens has a really high market price, the successful of betta spendens aquaculture on larvae stage depends of some factor, one of the factor is natural feed feeding in attempt to increase the growth. This research aims to determine of influence of different natural feed feeding towards to increase of growth and survival rate. The method used in this research was randomize complete design with 3 treatment and 3 replication following, T Treatment (Tubifex sp feeding), D treatment (Daphnia sp feeding), dan I Treatment (Infusoria feeding). Data was analyzed with Analysis of Variance (ANOVA) if there is a significant effect will be continue with BNT test. The best growth was on Tubifex sp. treatment with the increase of length from 0.7 cm to 1.7 cm and the growth of weight from 0.03 gr to 0.21 gr.Key Words : Growth, Larvae (Betta splendens), Tubifex sp., Daphia sp., Infusoria
Studi Tutupan dan Kerapatan Lamun di Pantai Pandaratan Kabupaten Tapanuli Tengah Provinsi Sumatera Utara Wawan Wajuna; Zulham Apandy Harahap
AQUACOASTMARINE Vol 6, No 3 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Pandaratan Beach has seagrass ecosystem which able to adaptation in water with high salinity.The research aims to determined species, coverage and density of seagrass at Pandaratan Beach.The research was conducted in Pandaratan Beach, Sarudik Subdistrict, Central Tapanuli Regency, North Sumatera Province from March until April 2018. The method of this research was purposive sampling which has three stations. The result of this research consists of two species of seagrass, Enhalus acoroides and Cymodocea rotundata.Precentage for seeagrass coverage at all stations were 34,47%, 20,27% and 25,38% with average value 26,70% which categorized in medium class. The values for seagrass density of Enhalus acoroides at first station until third station are 389 ind/m2, 72 ind/m2 and 85 ind/m2 with average value 182 ind/m2. The values for seagrass density of Cymodocea rotundata at first station until third station are 54 ind/m2, 127 ind/m2 and 260 ind/m2 with average value 147 ind/m2. The value of dispersial pattern for Enhalus acoroides is -0,057 and the value for Cymodocea rotundata is-0,601 both of seagrass species was categorized in equable class. The sedimentation rate was categorized in medium class with value for each station were 12,5 mg/cm3/day, 36,3 mg/cm3/day and 27,7 mg/cm3/day.Keywords ; Seagrass, Coverage, Density, Dispersial Pattern, Sedimentation Rate, Pandaratan Beach
KELIMPAHAN DAN PERTUMBUHAN KERANG KEPAH (Meretrix meretrix) DI PERAIRAN ESTUARI SUAKA MARGASATWA KARANG GADING KABUPATEN DELI SERDANG YUSNI AS ARI SIMANULLANG; Ipanna Enggar Susetya
AQUACOASTMARINE Vol 6, No 4 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

This study aims to analyze the abundance of Shellfish in estuary waters of Karang Gading Wildlife Reserve of Deli Serdang Regency, to analyze the growth pattern and condition factors of Shellfish through the analysis of long-term relationship, and to analyze the relationship of abundance of Shellfish with estuary chemical physics chemistry of Karang Gading Wildlife Refuge Deli Serdang. Sampling of Shellfish was done in December 2017 - February 2018 in estuary waters of Karang Gading Wildlife Reserve of Deli Serdang Regency. The analysis for the substrate fraction was done in the Agronomy Laboratory of the Faculty of Agriculture, University of North Sumatra. Sampling of shellfish using claws of iron material having a volume of 0.0495m3. Sampling of shellfish is done once a month starting at 14.00 WIB - 18.00 WIB. The shellfish (Meretrix meretrix) obtained at each station was calculated by the number of individuals, measured by the width of the body shell and body weight, then analyzed which consisted of abundance, distribution, growth pattern, and condition factor. Measurements of physical-chemical water parameters are done directly in the field. The result of this research concludes that the most shell of abundance at station I with 694 ind / m2 value, the distribution of shellfish is classified into uniform distribution pattern. The pattern of growth of shellfish in each of its stations in estuary waters of Karang Gading Wildlife Reserve is negative allometrik. The condition factor of mangrove crab in each station morphologically has good hair.Kata Kunci: Kelimpahan, estuari, pola pertumbuhan, Meretrix meretrix
STRUKTUR KOMUNITAS IKAN KARANG DI PULAU UNGGEH KABUPATEN TAPANULI TENGAH PROVINSI SUMATERA UTARA YULIANA HANDAYANI GEA; Zulham Apandy Harahap
AQUACOASTMARINE Vol 6, No 4 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Reef fish research in Unggeh Island waters aims to determine the species composition, abundance, distribution, and community structure of reef fish in these waters. Data collection was carried out in December 2017 and April 2018 at four stations in Unggeh Island waters. Data was collected using Underwater Visual Census (UVC) and transect methods (Underwater Photo Transec, UPT) with SCUBA equipment. Total species of reef fish in December 2017 were collected as many as 36 species representing 10 families. And in April 2018 there were 22 types representing 9 families. Diversity Index values range from 1.36 to 3.23. Diversity index (H ') in December 2017 and April 2018 each valued at 1.50-2.41 (medium category) and 2.04-2.58 (medium category). The uniformity value of € in December 2017 and April 2018 is worth 0.63-0.5 (high category) and 0.79-0.89 (high category), respectively. Dominance index (C) in December 2017 and April 2018 each value 0.12-0.42 (low category) and 0.16-0.18 (low category).Keywords: Reef Fish, Unggeh Island, Coral reef ecosystems
Pengaruh Waktu Pemberian Pakan Buatan Tehadap Pertumbuhan dan kelangsungan Hidup Ikan Lele (Clarias sp.) Afnianti Sianturi; Syammaun Usman
AQUACOASTMARINE Vol 6, No 4 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Catfish is one of the freshwater fish that has developed cultivation in the community because it can be cultivated in limited places and high density and has the advantage, fast growth and resistance to disease. The speed of fish growth rate is strongly influenced by the type, quality and management of feed given and environmental conditions. The study were used Completely Randomized Design (RAL) with 3 treatments and 3 replications, as follows: P1 (Time feeding 3 times daily), P2 (Time feeding 4 times daily) and P3 (Time feeding 5 times daily ). The data were analyzed using Analysis of Variance (ANOVA), followed by the Smallest Significant Difference (BNT) test. The results showed that the frequency treatment of different feeding significantly affected the growth but did not significantly affect the survival of catfish. The best feeding time in increasing the growth and survival of catfish is P3 treatment with larva length increase of 8,0 cm and weight increase 32,24gr.Keywords : Clarias sp., Feeding Time, Growth
PENGARUH CAMPURAN TEPUNG KEPALA UDANG PADA PAKAN KOMERSIL TERHADAP PERTUMBUHAN IKAN NILA (Oreochromis niloticus) Tiara Dwi Sandri; Eri Yusni
AQUACOASTMARINE Vol 6, No 4 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Tilapia (Oreochromis niloticus) is a freshwater fish that has high economic value and widely cultivated, but the cultivators often get problem in feed prices because the high cost of raw materials such as fish feedwhich is still imported. To overcome this problem, we look for alternatives to local raw materials that can replace fish feed such as shrimp head waste flour. This study aims to determine the effect of shrimp head flour on commercial feed on the growth rate of tilapia. This study used a complete random planning which is designed with 3 treatments and 3 replication, P1 (75% commercial feed + 25% shrimp head flour), P2 (50% commercial feed + 50% shrimp head flour), P3 (25% commercial feed + head flour 75% shrimp). The data obtained were analyzed by variance and continued with Duncan's test. The parameters that observed were heavy and long growth, and the Feed Convertion Ratio (FCR). All parameters were showed that the use of shrimp head flour in artificial feed gave a very significant effect on the growth rate of tilapia with high growth values, while the FCR value was low. The high content of shrimp head flour in feed causes increased growth of tilapia. The results showed that the highest increase in length and weight with feed in P3 was found significant effect with value of length of 5.7 cm and weight of 21.2 g and the highest survival rate at P3 treatment of 80% and feed conversion ratio (FCR) of 0.8%.Keywords: Shrimp Head Flour, Growth Rate
PERTUMBUHAN DAN LAJU EKSPLOITASI KERANG KEPAH (Meretrix sp.) DI MUARA SUNGAI ASAHAN DESA BAGAN ASAHAN KABUPATEN TANJUNG BALAI ASAHAN Tri Hartati uyun Matondang; Ipanna Enggar Susetya
AQUACOASTMARINE Vol 6, No 4 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Asahan River is the catching area of shellfish which is the main source of income for fishermen. One shellfish caught is Kepah Shell (Meretrix sp.). The purpose of this study was to determine the pattern of growth and the rate of exploitation of Kepah Shell. The research method used is purposive sampling method. The research was done of April until May 2018. The shells obtained consisted of three stations with a total total of 1516. The results showed that the frequency of the shell length was 10-47 mm. The growth pattern of Kepah Shell is allometric negative. The condition factor on station I was 0,09 average, station II averaged 0,12 and station III averaged 0,12. The result of parameter analysis of Kerang Kepah growth consist of growth coefficient (K) that is 1,4 year, infinitive length (L∞) is 45,15 mm, theoretical age of shell at the same length equal to zero (t0) that is -0,10. Analysis of alleged mortality and exploitation rate of Kepah Shell consisting of total mortality (Z) is 5,823/year, natural mortality (M) is 2.015/year, capture mortality (F) is 3,808/year, and rate exploitation (E) is 0.6 (overfishing).Kata Kunci : Muara Sungai Asahan, Kerang Kepah (Meretrix sp.), Pertumbuhan, Laju Eksploitasi

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