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Aquasains : Jurnal Ilmu Perikanan dan Sumberdaya Perairan

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Published by Universitas Lampung

ISSN : 2301816X EISSN : 25797638 DOI : -

Core Subject : Education,

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Articles 6 Documents

Search results for , issue "Vol 6, No 2 (2018)" : 6 Documents clear

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

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.

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

Anguilla spp. is one of the ï¬sheryÂ commodities that have high economic value.North Lombok regency is one of the centralÂ part of Indonesia which is suspected to haveÂ potential as an eel migration route. This studyÂ aims to obtain information about the identiï¬cationÂ of Anguilla spp ï¬sh populations. in NorthÂ Lombok Regency. The results showed that theÂ waters area of North Lombok Regency has theÂ potential of eel ï¬sh source Anguilla marmorata.Â The timing of eel migration is still unknown, soÂ further research is needed which will cover aÂ full year.

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

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

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.

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

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

MEDIA POROSITY in SILK WORM CULTURE (Tubifex sp.) Epro Barades; Pindo Witoko
AQUASAINS Vol 6, No 2 (2018)
Publisher : Jurusan Perikanan dan Kelautan

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.

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