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WI, INPURWANTO
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ABSTRACT SANTOSO, BAMBANG EKO; WI, INPURWANTO; HURRIYANI, YENI
Jurnal Sains Pertanian Equator Vol. 9 No. 3 (2020)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jspe.v9i3.41484

Abstract

Stingray is an important fisheries commodity in North Kayong. Continuous stingrays catching results in the extinction of several stingray species. This study was conducted to determine the species composition, index of species diversity, dominance, uniformity, abundance and conservation status of rays at Sukadana Fishing port, North Kayong Regency. The method used in this study was a descriptive survey. The results of the study found 291 individual stingrays consisting of 14 species and 2 families. The results showed that the highest relative abundance is the Telatrygon zugei species with a value of 0.213 and the lowest abundance of stingrays are the Neotrygon kuhlii species with a value of 0.007, the index of stingray diversity (H’) 2,371 classified as moderate, the uniformity index (E) 0.898 classified as high, the dominance index (C) 0.003 classified as low. Based on the IUCN Red List of Threatened Species, there are 6 species of stingrays are included in the category of Vulnerable (VU), 4 species are in the category of Near Threatened (NT), 2 species are in the category of Not Evaluated (NE), and 2 species are in the category of Data Deficient (DD).
PENGARUH PUPUK ORGANIK CAIR TERHADAP PERTUMBUHAN STEK DAUN NENAS yolla, nove neranda nadesta; Listiawati, Agustina; wi, Inpurwanto
Jurnal Sains Pertanian Equator Vol. 3 No. 2: Agustus 2014
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jspe.v3i2.6274

Abstract

Pupuk Organik Cair (POC) adalah larutan dari pembusukan bahan-bahan organik yang berasal dari sisa tanaman, kotoran hewan, dan manusia yang kandungan unsur haranya lebih dari satu unsur baik unsur hara makro maupun unsur hara mikro. Pupuk organik berperan dalam pertumbuhan tanaman, salah satunya adalah untuk pembentukan tunas-tunas baru pada tanaman. Tujuan dari penelitian ini adalah untuk mengetahui konsentrasi yang terbaik dari pupuk organik cair yang mengandung BAP untuk pertumbuhan setek daun nenas. Penelitian ini menggunakan Rancangan Acak Lengkap dengan 1 faktor, terdiri dari 6 perlakuan konsentrasi pupuk organik cair, diulang sebanyak 4 kali serta setiap ulangan terdiri dari 3 sampel tanaman. Perlakuan S1 (0,2 ppm), S2 (0,3 ppm), S3 (0,4 ppm) , S4 (0,5 ppm), S5 (0,6 ppm) dan S6 (0,7 ppm). Variabel yang diamati adalah waktu terbentuknya tunas (hari), jumlah tunas, persentase terbentuknya tunas (%), tinggi tunas (cm), persentase terbentuknya akar (%), dan panjang akar (cm). Hasil penelitian menunjukkan pemberian konsentrasi pupuk organik cair berpengaruh tidak nyata terhadap waktu terbentuknya tunas, jumlah tunas, tinggi tunas, persentase terbentuknya akar, dan panjang akar, tetapi berpengaruh nyata terhadap persentase terbentuknya tunas. Konsentrasi pupuk sebesar 0,2 ppm, 0,3 ppm, 0,4 ppm, 0,5 ppm, dan 0,6 ppm memberikan hasil terbaik pada variabel persentase terbentuknya tunas sebesar 100 %. Kata kunci : Pupuk Organik Cair, Nenas, Setek Daun
ESTIMATION OF ORANGE MUD CRAB (Scylla olivacea) STOCKS AS THE CATCH YIELD OF FISHERMEN OF KUBU VILLAGE, KUBU RAYA DISTRICT, WEST BORNEO Triadma, Arif; WI, INPURWANTO; HURRIYANI, YENI
Jurnal Sains Pertanian Equator Vol. 8 No. 3 (2019)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jspe.v8i3.35343

Abstract

ABSTRACKInformation about orange mud crab (Scylla olivacea) stocks in West Kalimantan is still very minimal, especially in Kubu Village, Kubu Sub-District. The purpose of this study was to estimate the stocks of Scylla olivacea from the catch yield of fishermen of Kubu Village, Kubu Sub-District, Kubu Raya District, West Borneo Province. The method used for sampling was the Census method in which the samples to be observed were all the catches of orange mud crabs in 2 (two) collectors in Kubu Village. Sampling of S. olivacea was carried out at 1-time interval in 2 weeks for 4 (four) months. This study was conducted in September-December 2018. Based on the results of the study, S. olivacea which was caught during the study were 341 crabs, in which male crabs were caught of 255 crabs and female crabs of 86 crabs. The relationship of width and weight of male S. olivacea was negative allometric, female S. olivacea was isometric and the total male and female was isometric. The asymptotic width (L∞) of male S. olivacea was 258 mm, female was 175 mm, the total was 253.3 mm, the growth coefficient (K) of male was 0.15 per year, female was 0.21 per year, the total was 0.15 per year. The mortality of S. olivacea was mostly caused by natural mortality (M) with a value of 0.2355 per year. The rate of exploitation of S. olivacea shows that the catches carried out was still below optimal with the exploitation value (E) of 0.1673.Keyword : Stock estimation, Scylla olivacea, Width and weight relationship.
ABSTRACT Napril, Fazri; Sirodjul, Ahmad Mulyadi; Wi, Inpurwanto
Jurnal Sains Pertanian Equator Vol. 9 No. 3 (2020)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jspe.v9i3.41524

Abstract

The continuous catches of freshwater prawns in Batu Ampar Village done by fishermen are predicted to cause a decrease in the stock of freshwater prawns. This study aims to estimate the stock of freshwater prawns in this village. Research variables cover the frequency distribution of carapace length, the relationship between length and weight, growth rate, and mortality as well as the exploitation rate of freshwater prawns. The data were collected in October - December 2019 from collectors in Batu Ampar Village. The data were then analyzed using Ms. Excel Software and FISAT II (FAO-ICLARM Stock Assessment Tol II). The results showed the frequency distribution of carapace lengths in male and female prawns with sizes of 31-36 mm. Analysis of the relationship between the length and weight showed a negative allometric growth pattern with b-values of 1.98 for male prawns and 1.82 for female prawns. Male prawns have an asymptotic length of (L?) 91.5 mm, with a growth coefficient of 0.40 per year. Meanwhile, female prawns have values of (L?) 75 mm with a coefficient of 0.38 per year. The slow growth of female prawns was due to the allocation of energy needed to ripen the gonads until spawning. The exploitation rate (E) of the result of prawn catches in Batu Ampar Village showed a low utilization rate (under exploited).
Co-Authors Agustina Listiawati Hurriyani, Yeni Napril, Fazri SANTOSO, BAMBANG EKO Sirodjul, Ahmad Mulyadi Triadma, Arif yolla, nove neranda nadesta