Open Access Original Research Article

Evaluating Primary Productivity Based on Chlorophyll-a in Ciburuy Lake, West Java Indonesia

Regy Pratama Rusdiansyah, . Zahidah, Dedi Supriadi, Herman Hamdani

Asian Journal of Fisheries and Aquatic Research, Page 1-8
DOI: 10.9734/ajfar/2021/v14i230290

Ciburuy Lake is the one of many natural lakes in Padalarang, West Java. Padalarang is industries area and pruduce huge waste water to contamination Ciburuy Lake. Ciburuy Lake area has many functions such as tourism, settlement, agriculture and industry. This study aim to evaluate velue of primary productivity based on chlrophyill-a. Chlorophyll-a is one of the indicator to creat management plan of water resources in Ciburuy Lake. This research was conducted from January to March 2021. Sampling carried out in 4 station with deferent water situation. This research used chlorophyll-a concentration measurment method to determine primary productivity. Result obtained in terms of water quality are: temperature  range of 24 - 28 oC; depth water range of 151,83 – 190,83 cm; Transparation range of 22,83 – 27,67 cm; pH range of 5,94 – 8,00; CO2 range of 6,98 – 33,52 mg/L; BOD range of 7,84 – 12,14 mg/L; nitrate range of 0,235 – 0,312 mg/L; fosfate range of 0,142 --0,156 mg/L, and chlorophyll-a concentration range of 0.024 - 0.065 mg/L . This research showed that Ciburuy Lake has water condition eutrophic to hypertrophic because primary productivity in Ciburuy Lake has middle to high condition based on chlorophyll-a concentration.

Open Access Original Research Article

Survey Analysis of Ponds Aquaculture Development Trend in West Java Province

Dhea Tiara Nurmahendra, Asep Agus Handaka Suryana, Evi Liviawaty, Atikah Nurhayati

Asian Journal of Fisheries and Aquatic Research, Page 9-19
DOI: 10.9734/ajfar/2021/v14i230291

The fishery sector has a strategic role in national development. West Java is one of the areas with the highest fisheries sector because it has abundant fisheries resources and commodities, so that West Java Province is one of the aquaculture sectors in Indonesia. Ponds are a culture medium for freshwater fisheries that dominate most of the production in West Java Province. The purpose of this study is to analyze the development trend of ponds aquaculture competitiveness in the regency/city of West Java Province. The study was conducted in November 2020 – June 2021. The method used was a literature survey to determine the development trend of aquaculture in ponds in West Java Province. The data obtained in the form of primary data and secondary data were analyzed descriptively. Primary data in the form of expert opinions as many as 20 people consisting of nine lecturers from the Faculty of Fisheries and Marine Sciences, Padjadjaran University and 11 employees of the Department of Marine and Fisheries of West Java Province. Secondary data is in the form of aquaculture statistical data in ponds with the main indicators, namely human resources, facilities, facilities and infrastructure, production, and Science and Technology with time series data from 2004 – 2019 Department of Marine and Fisheries of West Java Province. The results showed that the trend of fisheries competitiveness in 2004 – 2019 illustrates that the movement of ponds aquaculture development in the regency/city of West Java Province is experiencing fluctuating changes, seen from the development of aquaculture production from year to year experiencing positive changes.

Open Access Original Research Article

Age, Growth, Condition Factor and Reproduction of Planiliza abu (Mugiliformes: Mugilidae) in the Al-Diwaniya River, Middle of Iraq

Abdul-Razak M. Mohamed, Mohanad O. Al-Jubouri

Asian Journal of Fisheries and Aquatic Research, Page 20-29
DOI: 10.9734/ajfar/2021/v14i230292

The age, growth, relative condition factor, and reproduction of Planiliza abu (Heckel, 1843) from the Al-Diwaniya River, Iraq was described in samples obtained from October 2016 to September 2017, using different fishing gears. Total length and weight were measured, scales were used for age determination, and gonads were excised from the body cavity sexed and weighed. The lengths of the species ranged from 7.0 to 20.0 cm, and the most dominant length group was 13.0 cm. The length-weight relationship was W=0.0199*L2.821 revealing a negative allometric growth (b= 2.821). The mean relative condition factor (Kn) was calculated as 1.13 for females and 0.93 for males. Four ages were recognized for the species with mean total lengths of 10.2, 14.5, 39.0, 17.2 and 19.3 cm, respectively. The von Bertalanffy growth parameters based on back-calculated lengths were L∞= 23.4 cm, K=0.38 and to= -0.27. The growth performance index (Ø) of the species is computed as 2.32. The overall sex ratio (male: female) was 1:1.70. The gonad-somatic index (GSI) values of both sexes were highest in April, 8.5 for males and 11.6 for females and the lowest values in August, 0.22 for males and 0.75 for females, indicated that the spawning period was from April to May. Some biological properties such as lengths of individuals, negative allometric growth, ages from 1 to 4 years, values of ultimate growth (L∞) and growth performance index (Ø) and overall sex ratio were among those described for the species in other waters. These results can contribute to providing information for species management in the study river.

Open Access Original Research Article

Analysis of Capture Fisheries Development Trends in Indonesia

. Perdiansyah, Asep Agus Handaka Suryana, Achmad Rizal, Atikah Nurhayati

Asian Journal of Fisheries and Aquatic Research, Page 30-38
DOI: 10.9734/ajfar/2021/v14i230293

Indonesia's fishing capture industry has very great potential in order to become the national economy's key driver. Change in population, pricing, technology, and productivity are the key indicators of trend. The objective of this study is to assess the evolution of Indonesian fisheries. This study was carried out at the Ministry of Maritime Affairs and Fisheries from August 2020 to July 2021. According to this study, 34 provinces in Indonesia were surveyed using a literature review method. Primary data in the form of expert opinion (expert judgment) consisting of 10 capable respondents. Secondary data was adopted from statistical data of the Ministry of Marine Affairs and Fisheries Center from 2005-2018. Data analysis was performed by using descriptive quantitative analysis techniques. The development of capture fisheries competitiveness in Indonesia has experienced fluctuating changes and tends to increase during 2006 to 2018.

Open Access Original Research Article

Proximate Analysis and Mineral Composition of Commercially Important Spiny Lobsters from Visakhapatnam Coast, Andhra Pradesh, India

Pavan Kumar Kommuri, Naresh Mugada, Ramesh Babu Kondamudi

Asian Journal of Fisheries and Aquatic Research, Page 39-47
DOI: 10.9734/ajfar/2021/v14i230294

The research work was carried out to assess the dietary qualities of spiny lobsters collected from Visakhapatnam fishing harbour, situated on the northeast coast of Andhra Pradesh. The species selected were Panulirus homarus (Linnaeus, 1758), P. ornatus (Fabricius, 1798), P. versicolor (Latreille, 1804), and P. polyphagus (Herbst, 1793). The species were morphometrically measured, and their tissue was analyzed for the comparative proximate composition (Moisture, Protein, Lipid, and Ash) on a dry weight basis. Protein content was found to be high in all the lobster species. Highest protein content was observed in P. homarus (mg/g), followed by P. ornatus and P. versicolor (mg/g). Moisture percentage was 72.7, 75.7, 76.2, and 74.8% respectively. In addition, four minerals were analysed (Ca, Na, K, and Mg) in the present study. Calcium was observed maximum in all the species, and Magnesium was recorded minimum in all the lobsters.