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AQUASAINS
Published by Universitas Lampung
Aquasains merupakan jurnal berkala yang berfungsi sebagai sarana komunikasi ilmiah dan untuk menyebarluaskan hasil-hasil penelitian. Bidang kajian dimuat meliputi perikanan budidaya, manajemen dan pemanfaatan sumberdaya perikanan. Naskah dalam jurnal tidak selalu mencerminkan pendapat Universitas Lampung. Dewan redaksi dapat menyingkat atau memperbaiki naskah yang akan dimuat tanpa mengubah maksud dan isinya. Jurnal Aquasains terbit dua kali dalam setahun, bulan Februari, dan Agustus
Articles
109
Articles
INVENTORY OF FISHING GEAR IN KECAMATAN TUNGKAL ILIR, TANJUNG JABUNG BARAT, JAMBI

Lisna, Lisna, Vincentia, Agnes, Noferdiman, Noferdiman, Amelia, Jasmine Masyitha

AQUASAINS Vol 6, No 2 (2018)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

This research was conducted at Tungkal Ilir, Jambi on May to July 2017. The aims of this study were (1) to determine the types of fishing gear that operates in Tungkal Ilir, (2) fishing area and (3) the dynamics of operating fishing gear in Tungkal Ilir. Data collection was done by interview and observation. The data will be analyzed descriptively using tables and graphs. Based on the results of this research, the fishing gear used in Tungkal Ilir are gill net, trawl, togok, sondong, trap and long line. Gill net is the largest fishing gear used with 15 fishermen. While the least used fishing gear is trap. The dynamics of fishing is strongly influenced by the season and the type of fishing gear used by the fisherman. The fishing area in Tungkal Ilir ranges from 1 mile to 30 miles

SPESIES COMPOSITION AND DENSITY OF MACROALGAE IN KAMBOWA VILAGE WATERS, SOUTHEAST SULAWESI

Ira, Ira

AQUASAINS Vol 6, No 2 (2018)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

Macroalgae has an important role in marine waters both ecologically and economically. This study aims to provide information about spesies composition and density of macoalgae in the kambowa village waters and the wealth of macroalgae in south east Sulawesi. The study was conducted in the waters of Kambowa village, north buton district South East Sulawesi from November 2015-January 2016. Sampling of macroalgae were done using quadrate transect (1 x 1 m) and other is 10 m distance and 100 m length. The result of study found that the number of macroalgae spesies consisted of 16 spesies consisting of 7 orders, 10 families, 13 genera. The spesies composition was dominated by Chlorophyta class (43%), Phaeophyta class (37%) and Rhodophyta class (21%). Total density of macroalgae is 542 ind/m2  with 229 ind/m2 by Chlorophyta class, and Phaeophyta and Rhodophyta class that is 201 ind/m2 dan 112 ind/m2. The highest density was 144 ind/m2 with Halimeda macroloba. The lowest density was 2  ind/m2 with Gracillaria edulis.

THE CONTENT OF LEAD, CADMIUM, CUPRUM, AND ZINC IN ANCHOVY (Stolephorus SP) AND WHITE SHRIMPS (Penaeus merguensis) IN KAO BAY OF NORTH HALMAHERA

Pertiwi, Reni Tyas Asrining

AQUASAINS Vol 6, No 2 (2018)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

Some researcher’s claim some of fish have been studied in Kao Bay were at dangerous level because mercury and cyanide contains. Nevertheless, up to now people around Kao Bay were consumed a marine product as a livelihood sources and food sources. The purpose of this research were to determine of Pb,Cd, Cu and Zn on anchovy (Stolephorus sp) and white shrimp (Penaeus marguiensis) around Kao Bay. The result expected could contributingthe feasible of anchovy and white shrimp were consumed. The method were used to determine the content of Pb, Cd, Cu and Zn on anchovy and white shrimp by using AAS method with HNO3 reagent. Those research assess thecontent of heavy metals in laboratory of Mathematics and Science Faculty of Brawijaya University. The results obtained the metal content in anchovy were Zn> Cd> Pb> Cu and the  metal content in white shrimp were Zn> Cu> Pb> Cd. The results showed the content of Pb, Cd, Cu and Zn on anchovies had exceeded the maximum limit were set and the content of Pb, Cd, and Cu on white shrimps has exceeded except the Zn in was below the maximum limit but is already at a critical level.

MEDIA POROSITY in SILK WORM CULTURE (Tubifex sp.)

Barades, Epro, Witoko, Pindo

AQUASAINS Vol 6, No 2 (2018)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

The content of organic matter can affect the growth of silk worms (Tubifex sp.). In addition, media porosity can also have an effect. This study aims to determine the effect of porosity on the cultivation of silk worm by using media of mud and sandy mud. The analysis used a complete randomized design method with three replications. The silk worm population in mud and sandy mud is 521 and 984, with ABW (Average Body Weight) growth of 0.3 mg and 0.1 mg. These results prove that porosity affects the population, whereas organic matter affects the weight of silk worms. So it can be concluded that the use of sandy mud media produces a higher population, but has lower ABW than the mud media.

POTENCY OF EEL Anguilla marmorata in NORTH LOMBOK REGENCY, WEST NUSA TENGGARA PROVINCE

Setyono, Bagus Dwi Hari, Junaidi, Muhammad, Marzuki, Muhammad, Paryono, Paryono, Azhar, Fariq

AQUASAINS Vol 6, No 2 (2018)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

Anguilla spp. is one of the fishery commodities that have high economic value.North Lombok regency is one of the central part of Indonesia which is suspected to have potential as an eel migration route. This study aims to obtain information about the identification of Anguilla spp fish populations. in North Lombok Regency. The results showed that the waters area of North Lombok Regency has the potential of eel fish source Anguilla marmorata. The timing of eel migration is still unknown, so further research is needed which will cover a full year.

EFFECT OF DIFFERENT STOCKING DENSITY TO GROWTH RATE OF CATFISH (Clarias gariepinus, Burch) CULTURED IN BIOFLOC AND NITROBACTER MEDIA

Puspita, Elfa Verda, Sari, Ratih Purnama

AQUASAINS Vol 6, No 2 (2018)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

Catfish is one of the freshwater commodities whose demand continues to increase in Indonesia. Intensive cultivation is done to meet market demand. Intensive cultivation is done by optimizing stocking density. The aim of this research was to know the effect of different density on feed productivity, growth, feed conversion ratio (FCR) and survival of catfish dumbo fry (Clarias gariepinus, Burch) in biofloc and nitrobacter media. This study used a completely randomized design (RAL) with 6 treatments and 3 replications. The test animalsused catfish dumbo (Clarias gariepinus, Burch) with an average weight of 0,6 ± 0,1g and an average length of 4 cm. Catfish dombo seeds are kept in tarpaulin ponds 2 m in diameter with water volume ± 1 m3 for 45 days and feeding 3% of biomass weight. The results showed that the different density of stockingin biofloc and nitrobacter media had increase on productivity, specific growth rate, feed efficiency and no significant effect on the survival of catfish dumbo fry.

GROWTH OF GOSTFISH, Upeneus sulphureus IN KENDARI BAY, SOUTHEAST SULAWESI

Asriyana, Asriyana, Irawati, Nur

AQUASAINS Vol 6, No 1 (2017)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

Research on growth and condition factor of goatfish were carried out from May 2015 to November 2015 in Kendari Bay, Southeast Sulawesi. The purpose of this researchwas to analyze growth and condition factor of goatfish in Kendari Bay, Southeast Sulawesi. Fish samples were collected using bottom experimental gillnets and trammel nets with different mesh sizes ¾, 1, 1¼, and 1½ inch.Growth parameters were analyzed following von Bertalanffy formula using ELEFAN I software of package program of FiSAT II. A total of 386 individual fish was caught with ranged from 46–176 mm in the total length and 3,1 – 67,1g in weight. The length-weight relationship of goatfish is Lt= 184,42 {1E–1;5(t006)}

INDICATION OF SEA WATER INTRUSION AS ONE OF THE IMPACT OF SEA LEVEL RISE (CASE STUDY OF TUBAN REGENCY)

Joesidawati, Marita Ika

AQUASAINS Vol 6, No 1 (2017)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

Dampak kenaikan permukaan air laut (sea level rise/SLR)  di pesisir Kabupaten Tuban diprediksi terbagi menjadi 3 kelompok yaitu kemunduran garis pantai, penggenangan, dan intrusi air laut.   Untuk mengetahui gejala intrusi air laut yang terjadi di pesisir Kabupaten Tuban ini diperlukan  pemetaan sebaran air tanah asin hingga payau. Penelitian dilakukan dengan mengambil air sampel pada 100 titik di  beberapa sumur gali maupun sumur bor yang tersebar pada akuifer dangkal dan dalam di 5 Kecamatan yang ada di kabupaten Tuban yang meliputi kecamatan Bancar, Tambakboyo, Jenu, Tuban dan Palang dengan jarak 200 -300 m dari garis pantai. Selanjutnya  air sampel yang diambil dilakukan pengukuran Daya Hantar Listrik (DHL). Hasil nilai pengukuran DHL kemudian di bentuk peta sebaran nilai DHL untuk mengetahui klasifikasi tingkat keasinan air tanah yang ada di daerah pesisir Kabupaten Tuban. Selanjutnya sampel dianalisa di laboratorium untuk mengetahui kandungan ion Carbonat (CO3), Bicarbonat (HCO3), Khlorida (Cl).  Indikasi adanya penyusupan air laut ditentukan berdasarkan nilai perbandingan kadar ion Khlorida (Cl) terhadap jumlah ion karbonat (HCO3-1 + CO3-2). Peta sebaran nilai DHL di Kabupaten Tuban antara 900-1500 (sifat air: air tawar) yaitu Kecamatan Bancar, Jenu, Tuban, sedangkan <1500 – 1800 (sifat air: air agak payau) yaitu Jenu, Tambakboyo, Bancar. Tingakt intrusi yang terjadi kategori sedikit dan sedang yaitu hamper di 4 kecamatan pantai (Bancar, Tambakboyo, Jenu, Palang) sedang kecamatan Tuban masih air tawar. Nilai DHL lebih dari 1500 µS/cm terdapat  di empat kecamatan (Bancar, Tambakboyo, sebagian Jenu, dan palang). Wilayah tersebut memiliki jarak dengan laut cukup dekat, namun pada beberapa tempat dilokasi tersebut juga masih ditemukan kondisi air yang tidak asin. Daerah sebaran air tanah agak payau menempati akuifer berupa lempung pasiran yang merupakan endapan alluvial dengan permeabilitas umumnya rendah dan topografi permukaan tanah datar hingga landai, sehingga sangat rentan terhadap intrusi air laut. Air tanah agak payau didominasi oleh akuifer berupa pasir gampingan hingga lempung gampingan, namun sebagian juga masih masuk ke dalam sistem akuifer endapan alluvial. Selain perbedaan sistem batuan penyusun akuifer jarak antara sumur dengan air laut juga menjadi salah satu faktor penyebab perbedaan tingkat keasinan air tanah.

MUD LOBSTER Thalassina (Latreille, 1806) (Decapoda: Thalassinidae) IN TANJUNG TIRAM DISTRICT SOUTH KONAWE REGENCY, SOUTHEAST SULAWESI

Purnama, Muhammad Fajar, Afu, La Ode Alirman

AQUASAINS Vol 6, No 1 (2017)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

This research aims to identify mudlobster species in Tanjung Tiram District, Southeast Sulawesi. Based on the identification, all specimens caught was belong to the species of Thalassina anomala (Herbst, 1804). Morphological characteristics of T. anomala distinguishing from other types Thalassina:           1) Rostrum triangular shape, rounded and serrated along its lateral border; 2) Dorsomedian tubercless on carapace extending up to the dorsal part of the first abdominal somite; 3) Abdominal sternite 2-5 on pleopod to have a tubercless in the middle (median line), 4) Pereopod 1have 13-20 tubercless on the inner side of the propodal and along the lateral side of the propodus, and 5) On males, petasma without proximal spine and rounded tip wide without setae.The finding of T. anomalain mangrove forest (intertidal zone) of Tanjung Tiram was basically cause by the distribution of this species in the world wide is widely distributed than other species from the genus of thalassina.

PROTECTED, PROHIBITED, AND INVASIVE FISH DIVERSITY AND DISTRIBUTION IN RANAU LAKE OF WEST LAMPUNG DISTRICT

Sumino, Sumino, Mude, Herman, Alam, Santi Saluri, Dini, Dini

AQUASAINS Vol 6, No 1 (2017)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

The objectives of this research were to collect fish species in Ranau Lake of West Lampung District, analyze the fish community structure, determine the types of fish that are protected, prohibited, or invasive and mapping its distribution. Sampling was done on three locations: Station 1 (Suka Banjar), Station 2 (Kagungan), and Station 3 (Lombok). The data were analyzed by the structure of the community: diversity (H), uniformity (E) and dominance index (C). The result of the identification indicate that there are 26 species of fish and total number of fish is 184. The results of the analysis of fish community structure in Ranau Lake have medium diversity, medium distribution and moderate community stability (H’=1.43), medium uniformity and volatile communities (E = 0.41),  low dominance and no dominant fish species (C = 0.32). From the 26 fish species in Ranau Lake, there are no protected and prohibited fish species, there are two types of fish categories as invasive alien species: nile tilapia (Oreochromis niloticus) and suckermouth catfish (Hypostomus plecostomus).