Garuda - Garba Rujukan Digital

Kondisi Ekologi Komunitas Mangrove Di Desa Perancak Kabupaten Jembrana, Bali Florentina Gultom; Ni Luh Watiniasih; Ni Made Ernawati
Current Trends in Aquatic Science Vol 4 No 1 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Penelitian ini menggunakan metode transek garis dan petak contoh serta hemisperichal photography untuk mengetahui komposisi jenis dan kondisi ekologi mangrove di Desa Perancak. Komposisi jenis mangrove yang ditemukan sebanyak 6 jenis. Jenis mangrove yang paling banyak ditemukan pada adalah Rhizophora apiculata dan Rhizophora stylosa sedangkan yang paling sedikit ditemukan adalah Avicennia officinalis. Kondisi ekologi komunitas mangrove alami berdasarkan nilai kerapatan kategori pohon berkisar 4.333,33-4.433,33 ind/ha, pancang berkisar 3.866,67-10.533,33 ind/ha dan semai berkisar 5.000-15.833,33 ind/ha. Nilai indeks keanekaragaman kategori pohon berkisar 0,57-1,43, pancang berkisar 0,74-1,39 dan semai berkisar 0,64-0,68, Nilai indeks keseragaman pada kategori pohon berkisar 0,80-0,83, pancang berkisar 0,53-2,00 dan semai berkisar 0,92-0,98. Nilai indeks dominansi kategori pohon berkisar 0,31-0,61, pancang berkisar 0,50-0,61 dan semai berkisar 0,51-0,56. Hasil INP pada seluruh kategori adalah ? 200% dan hasil persentase tutupan mangrovenya berstatus baik. Kondisi ekologi komunitas mangrove hasil rehabilitasi berdasarkan nilai kerapatan kategori pohon berkisar 3.600-4.100 ind/ha, pancang berkisar 800-1.466,67 ind/ha dan semai berkisar 18.333,33-39.166,67 ind/ha. Nilai indeks keanekaragaman kategori pohon berkisar 0,61-0,79, pancang berkisar 0,66-1,10 dan semai berkisar 0,69-1,97. Nilai indeks keseragaman kategori pohon berkisar 0,72-0,88, pancang berkisar 0,95-1,00 dan semai berkisar 0,97-0,99. Nilai indeks dominansi kategori pohon berkisar 0,48-0,58, pancang berkisar 0,33-0,54 dan semai berkisar 0,36-0,51. Hasil INP pada seluruh kategori adalah ? 200% dan hasil persentase tutupan mangrovenya berstatus baik.

Fluktuasi Kualitas Air Budidaya Ikan Nila (Oreochromis niloticus) dengan Beberapa Variasi Sistem Resirkulasi M Alfian Pratama; I Wayan Arthana; Gde Raka Angga Kartika
Current Trends in Aquatic Science Vol 4 No 1 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Water quality has considerable influence on the survival rate and growth of Tilapia in aquaculture waters. Good environment is required for fish growth and survival rate. Recirculation aquaculture system can be used to maintain the optimal quality of water during fish maintenance. The working principle of recirculation system is reuse water repeatedly so the temperature, oxygen and other distributions more evenly distributed. This research aims to determine the water quality fluctuation that occurs in aquaculture of Tilapia with unfiltered recirculation system (control), biofilters system (bioball) and aquaculture system (using water spinach and pakchoy). The measured water quality parameters include temperature, potential hidrogen (pH), dissolved oxygen (DO), turbidity and total dissolved solids (TDS). The results of six repetitions on control treatment, biofilter treatment and aquaponic treatment showed pH values range from 7-8, dissolved oxygen from 6-8.5 ppm, temperature from 28-30 ° C, total dissolved solid from 250- 500 ppm, and turbidity values range from 0.5 to 6 NTU. The statistic result showed significant differences (P<0,05), between parameters for temperature, pH, dissolved oxygen, and turbidity, while parameter total dissolved solids there were no significant differences (P>0,05). The best water quality results showed for aquaponic treatment because values of water quality tend to be stable for fish growth.

Struktur Komunitas Epifauna di Area Pasca Budidaya Rumput Laut di Kabupaten Badung Bali Mohammad Rizqi; I Wayan Arthana; Alfi Hermawati Waskita Sari
Current Trends in Aquatic Science Vol 4 No 1 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Pandawa and Geger Beaches used to be seaweed farming areas, later became tourist attractions which resulted in changes in the structure of the epifauna community. This study aims to determine the community structure and water quality at both beaches. The study was conducted from December 2018 to January 2019. Descriptive method was used and the determination of stations used purposive sampling. The sample was taken by the line transect method. The highest abundance of Pandawa Beach epifauna was Diadema setosum (0.444 ind / m2). The highest diversity at the seaweed cultivation area station with a value of 1.105 which belongs to the medium category. The highest uniformity was also in the same station with a value of 0.797 which indicate a stable epifauna community. The highest dominance in the tourist area station with a value of 0.861 which indicates high dominance. At Geger Beach the highest abundance of epifauna was Cerithidea obtusa species and Tripneustes gratilla with the same abundance (0.144 ind / m2). The highest diversity at the station adjacent to the coral pool with a value of 1,944 included in the medium category. The highest uniformity at the same station with a value of 0.935 which indicates a stable epifauna community. The highest dominance was obtained at the station near the pier with a value of 0.229 which showed low dominance. Pandawa and Geger Beaches water quality was still relatively optimal with an average temperature, dissolved oxygen, salinity, currents, and pH of 30.5 oC; 5.4 ppm; 30.3 ppt; 0.1 m/s; and 8.6 respectively. At Geger Beach, the average temperature, dissolved oxygen, salinity, current and pH were 30.6 oC; 5.1 ppm; 30.1 ppt; 0.1 m/s; and 8.7 respectively.

Analisa Kualitas Air di Sungai Pelus, Purbalingga, Jawa Tengah Rizki Andrianto; Ima Yudha Perwira; I Ketut Wija Negara
Current Trends in Aquatic Science Vol 4 No 1 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar

The purpose of this study was to determine the level of water quality in the Pelus River, Purbalingga Regency, Central Java. Water sampling is carried out in the upstream, middle and downstream sections, from June 2019 to July 2019. The water sample was then analyzed for the content of water quality parameters including COD and BOT measured using permanganate-based Titrimetry method, DO is measured using the Winkler method, TSS is measured using the Gravimetric method, then the TDS is measured using a TDS meter, Turbidity is measured using a Turbidity meter, then Nitrate and Phosphate are measured using the Spectrophotometry meth od, and water pH is measured using a pH meter. The results showed an increase in the value of water quality temporally and spatially ie (COD 28-43 mg/L, BOT 8.4-11.3 mg/L, DO 7.3-5.7 mg/L, TSS 32-65 mg/L, TDS 98-168 mg/L, Turbidity 7.2-12.7 NTU, Nitrate 0.8-1.4 mg/L, Phosphate 0.3-0.5 mg/L and pH 6.8-6.6). Temporal and spatial increase in the value of water quality, allegedly due to rainfall and high atropogenic activity in the Pelus River. Keywords: Pelus River; water quality; pollution; Purbalingga

Pendugaan Potensi Lestari Ikan Layang (Decapterus spp) yang Didaratkan di PPN Pengambengan S.A NYOMAN PUTRI TRIANTINI; I Wayan Arthana; Made Ayu Pratiwi
Current Trends in Aquatic Science Vol 4 No 1 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Scad fish is one of the main catches of fisherman who land their fish at Pengambengan Nusantara Fisheries Port (NFP). The method used in this study is the method of observation and interviews. Fish sampling in the study using a simple random sampling. The scad fish species which were found during the study were Decapterus macrosoma and D. kurroides. This study aimed to know about the distribution of fish length frequency, fish growth pattern, the estimation of sustainable fish potential and the estimation of utilization level of Scad Fish in Pengambengan NFP. The distribution frequency of female Scad Fish dominate the class interval of 197 – 204 mm and male Scad Fish dominate the class interval of 169 – 176 mm. The growth patterns of either male and female Scad Fish are negative allometric, with a W = 0,00001L2,9497 length-weight relationship for male Scad Fish and W = 0,00002L2,8089 length-weight relationship for female Scad Fish. The estimation of sustainable potential is carried out by using scheafer approach, MSY of Scad Fish acquire arround 2.646,911 ton/year with Fmsy 1123 trips/year. Based on data from 2009 – 2018, the utilization status of Scad Fish in Pengambengan NFP had undergone three diffrent states, the low and developing state in 2009 – 2017, and the overfishing status in 2018.

Bioindikator Makrozoobenthos dalam Penentuan Kualitas Perairan di Tukad Mati Badung, Bali Putu Frissa Anasthasya Widhiandari; Ni Luh Watiniasih; Dewa Ayu Angga Pebriani
Current Trends in Aquatic Science Vol 4 No 1 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract Tukad Mati (Mati River), is a river located in Badung regency. The amount of garbage that enters the river causes sedimentation in the estuary. The water in Tukad Mati becomes dirty and smells bad. There fore water . The degradation of water quality the living organisms. A number of organisms can be functioning as bio-indicators of water quality, such as macrozoobenthos. This study aims to determine Tukad Mati's status based on equitability index, diversity index, and dominance index of macrozoobenthos, and to determine water quality using biological indicators of macrozoobenthos with the Family Biotic Index (FBI). The study was conducted in November 2019. Samples were collected from 3 stations and samples collections ware repeated 4 times during the study. The highest abundance of macrozoobenthos at station I was Notopala sublineata species 6 ind/m2. station II was Semisulcospira libertina 5.16 ind/m2. And station III was Lmynaea acuminata species at 5.56 ind/m2. The diversity index of station I was 2.68, station II was 2.49, and station III was 2.59. Dominance index at the three stations was 2. Similarity index of station I was 0.99, station II was 0.92, and station III was 0.95. The FBI value of station I was 6.32; station II was 6.22; station II was 6.23. Disolved oxygen (DO) ranges from 6.67 to 7.72 mg/L; BOD5 ranges from 9.21 -10.28 mg/L; pH ranges from 5.6 - 5.8; The temperature during the stuy was on average of 30.1°C; the turbidity was ranged form 8.16 - 9.84 NTU. The he substrate of station I was rocky, sandy and muddy; station II was sandy; and station III was muddy sandy. Keywords: Abundance; Biomonitoring, Makrozoobenthos; Water quality, Mati river

Aspek Pertumbuhan Ikan Lemuru (Sardinella lemuru) Yang Didaratkan di Pelabuhan Perikanan Nusantara (PPN) Pengambengan, Bali Kindy Nurrani Annisa; I Wayan Restu; Made Ayu Pratiwi
Current Trends in Aquatic Science Vol 4 No 1 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar

The growth aspect is important for the preparation of fish resource management because fish conditions can be described by the growth data. This study was conducted to examine aspects of the growth of Lemuru fish landed in PPN Pengambengan in the period of October-December 2019, as input in the preparation of a sustainable management plan for Lemuru fisheries. Data analysis was including growth patterns, length distribution, age groups, and growth parameters. The results of the analysis on the growth aspects obtained Lemuru Fish growth patterns are positive allometric, meaning that the proportion of energy from food is allocated maximally by Lemuru Fish for weight growth. The distribution of Lemuru fork length ranges from 115-196.3 mm with the mode found in the 155.7 mm, this means that Lemuru fish are in the adult stage. This stock is growing, marked by 2 age groups with 2 shifts of the age group towards the right. Asymptotic length of Lemuru Fish has decreased, this condition is thought to be the impact of overfishing.

Jenis-Jenis Ikan Hasil Tangkapan Nelayan dengan Alat Tangkap Seine Net di Pesisir Desa Sanggalangit, Kabupaten Buleleng, Bali Putri Eka Cahyani; I Wayan Arthana; Ni Putu Putri Wijayanti; I Gede Wahyu Surya Wirawan
Current Trends in Aquatic Science Vol 4 No 1 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Sanggalangit Village is one of the villages in Gerokgak District, Buleleng Regency with the main potential of anchovy fisheries and several other types of fish. The fishing gear used is dominated by seine net. The purpose of this research is to determine the types of fish that have landed to assist in sustainable fisheries management. This research took time from December 2019 to January 2020. Fish samples were obtained by direct observation in the field. Fish sampling was taken using simple random sampling. The catch of fishermen with seine net fishing gear found 23 species of fish grouped into 8 orders and 16 families. The type of fish wealth index obtained was 2.,07, categorized as a low type of wealth index. The relative abundance of fish species received quite a variety of values ranging from 0,01%-0,15%. The analysis of the relationship between the length and weight of the main catch fish showed that the growth patterns were negative allometric.

Biomassa dan Kandungan Nutrisi Artemia sp. yang Diberi Papakan Alami Thalassiosira sp. dan Chlorella sp. Galang Alamin Trisnabatin; Pande Gde Sasmita Julyantoro; Ni Putu Putri Wijayanti
Current Trends in Aquatic Science Vol 4 No 1 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar

This study aims to determine the effect of giving Thalassiosira sp. and Chlorella sp. on the biomass and nutritional content of Artemia sp. This research was conducted at the Microalga Laboratory, Living Feed Unit of the Situbondo Aquaculture Aquaculture Fisheries Unit from June to August 2019. This research was experimental using a Completely Randomized Design (CRD) with three treatments and three repetitions. Provision of natural food against Artemia sp. carried out with 3 treatments namely Treatment (a) feeding Chlorella sp., (b) feeding with Thallassiosira sp., (c) feeding combination Thallassiosira sp. and Chlorella sp. combination feeding has a high nutrient content compared to treatments (a) and (b). The protein content in treatment (c) was 58.64% compared to treatment (a) amounted to 49.79% and treatment (b) 53.60%. Water quality measured during the study were temperatures ranging from 25.9-27 ° C, salinity values ??ranged from 34 to 38 ppt, pH values ??ranged from 8.04 to 8.45, and DO values ??ranged from 7.8 to 12.8 ppm. The value of water quality is still in the optimal range for the growth of Artemia sp.

Bahan Organik Terlarut dan Parameter yang Mempengaruhinya di Bagian Hilir Tukad Mati, Badung, Bali Muhammad Sholihin; Ima Yudha Perwira; Ni Made Ernawati
Current Trends in Aquatic Science Vol 4 No 1 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar

This research aimed to determine the amount of dissolved organic matter (BOT) and its influencing factors in the downstream part of the Tukad Mati, Badung, Bali. The research was conducted in the downstream of Tukad Mati from July to September 2019. The parameters measured were BOT, TSS, Turbidity, TDS, NO3, DO, pH, and Temperature. The results showed the level of increase in BOT in the morning with an average of 22.1 mg/l and afternoon 24.3 mg/l had a difference of 2.2 mg/l, with a percentage increase of 9.95% . TDS measurement results in the morning and evening have an average value of 419 mg/l and 423 mg/l with a difference of 4 mg/l with a percentage decrease of 0.95%. The results of nitrate measurements in the morning and evening have an average value of 3.5 mg /l and 3.8 mg/l with a difference of 0.3 mg/l with a decrease percentage of 8.6%. The results of TSS measurements in the morning and evening had an average value of 8.9 mg/l and 11.8 mg/l with a difference of 11.8 mg/l with a reduction percentage of 32.5%.

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota denpasar,

Bali

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name -

Contact Email -

Phone -

Journal Mail Official -

Editorial Address -

Location Kota denpasar, Bali INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota denpasar,

Bali

INDONESIA