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Zulham Apandy
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Tingkat Kematangan Gonad Kepiting Bakau (scylla serrata) di Kawasan Hutan Mangrove Sicanang Kecamatan Medan Belawan Sumatera Utara (Gonad maturity level mud crabs(Scylla serrata) in the mangrove area Sicanang, Medan Belawan North Sumatera) Alfredyanto Sianturi; Mohammad Basyuni; Zulham Apandy
AQUACOASTMARINE Vol 4, No 2 (2016): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Mud crabs in the mangrove ecosystem play an important role and potentialcommodity, however the population has decreased. Knowledge level of maturity of gonadmud crab is very important to note because this level illustrating the ability of aquatic animalsto reproduce in order to remain sustainability.The aim of the research is to know the effect ofdifferent density on the gonad maturity and difference in carapace length with the maturitylevel of gonad in the mangrove area of Sicanang Medan Belawan, North Sumatera.Theresearch has been analyzed in July-September 2015 in Sicanang Medan Belawan, NorthSumatera. The research using purposivesampling method that consists of 3 stations. Mudcrabs (Scylla serrata)are captured using traps and observed level of maturity gonad. The totalwere amount 66 mud crab tails. Respectively gonad maturity level mud crabs in the period inJuly was I. 50 %, II. 36,36 %, III. 4,54 %, IV. 9,09 %. Gonad maturity level mud crabs in theperiod in August is I. 60,86 %, II. 30,43 %, III. 4,34 %, IV. 4,34 %. Gonad maturity levelmud crabs in the period in September was I. 57,14 %, II. 19,04 %, III.14,28 %, IV. 9,52%.The gonad maturity level V was not found in all stations. Between the carapace with thematurity indexs of gonads Correlation coefficientwas 0.907 . Carapace correlation with thelevel of maturity of gonad mudcrab is close.Keywords : Mud Crab, Gonads; Gonad maturity, Carapace
Studi Kesesuaian dan Daya Tarik Wisata di Pantai Bosur Tapanuli Tengah Ditinjau dari Aspek Biofisik (Study of Suitability and Appeal of Tourism in Bosur Beach Central Tapanuli from Biophysical Aspect) Brawijaya Hutabarat; Miswar Budi Mulya; Zulham Apandy
AQUACOASTMARINE Vol 4, No 2 (2016): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Bosur beach located in Central Tapanuli where it has great potential to be developed as a tourist beach. This study aimed to analyze the suitability of coastal tourism on biophysical and also the level carrying capacity Bosur beach as a tourist attraction and to know the perception of tourist. The study was held on August 2015. Analyze of the data used purposive sampling method. This research used suitability analysis method and carrying capacity of the region, and the perception of tourists to find out the beauty value and comfort value. The results of the suitability analyzes for beach tourism is classified very appropiate (S1), for category of swimming is classified appropiate criteria (S2) and a category boating and Banana boat is classified appropriate criteria (S2). Carrying capacity of the Bosur beach can accomodate 884 tourists every day. Perception of tourists about beauty value of Bosur beach is 49%, and the comfort value of Bosur beach is 51%.Keywords : Bosur beach, Carrying capacity of the region, Land suitability assessment,The perception of tourists, Tourist attraction
STUDI TUTUPAN KARANG DI PULAU JANGGI KECAMATAN TAPIAN NAULI KABUPATEN TAPANULI TENGAH PROVINSI SUMATERA UTARA Study of Lifeform Coral in Janggi Island Tapian Nauli Subdistict District of Tapanuli Tengah, North Sumatera Province Nanda Rizki; Hasan Sitorus; Zulham Apandy
AQUACOASTMARINE Vol 4, No 2 (2016): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

NANDA RIZKI. Study of Lifeform Coral in Janggi Island Tapian Nauli Subsistrict, District of Tapanuli Tengah, Sumaterea Utara. Under Academic Supervision by HASAN SITORUS and ZULHAM APANDY HARAHAP.Janggi Island at Tapian Nauli subdistrict, District of Tapanuli Tengah is one small island and a part of Mursala Island as the main island. The aims of the study are to analize the percentage of coral covered area and the condition of coral reefs ecosystem in the Janggi Island. The research used survey method by using line intercept transect (LIT) in two research stations with line transect 70 meters and three replications in each transect. Guidelines for measuring the condition of coral refers to Keputusan Badan Pengendalian Dampak Lingkungan Hidup No. 47 of 2001. The results showed the condition of coral reefs in the Janggi island was good health category with coral covered area of 56,93%. The result increased if it compared to monitoring that conducted by Marine and Fisheries Department of North Sumatera in 2012 (46,83%). The lifeform coral percentages were included into the category Hardcoral Non-acropora to cover a percentage of 39,73% at the first station and 46,20% in the second station, which was dominated by coral massive (CM).Keywords: coral covered area, Janggi Island, Tapanuli Tengah
Co-Authors Alfredyanto Sianturi Brawijaya Hutabarat Hasan Sitorus Miswar Budi Mulya Mohammad Basyuni Nanda Rizki