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All Journal Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut The International Journal of Remote Sensing and Earth Sciences (IJReSES)
Wudianto
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Earth & Planetary Sciences Environmental Science

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KAPASITAS PERIKANAN CANTRANG DI PELABUHAN PERIKANAN PANTAI TEGALSARI KOTA TEGAL PROVINSI JAWA TENGAH PADA PENGELOLAAN PERIKANAN DEMERSAL Budiarti, Tri Wahyu; Nurani, Tri Wiji; Wiyono, Eko Sri; Zulkarnain; Wudianto
Marine Fisheries : Journal of Marine Fisheries Technology and Management Vol. 15 No. 1 (2024): Marine Fisheries: Journal of Marine Fisheries Technology and Management
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jmf.v15i1.47619

Abstract

Demersal fish resources are one of the main commodities in the waters of the Java Sea. Tegalsari coastal fishing port is one of the fish landing locations around the Java Sea where most of the demersal commodities landed at the port were caught by cantrang fishing gear. Generally, every fishing activity expects ideal catches by using an efficient input. Technical efficiency can be used as an indicator of performance measurement of fishing gear. This study aimed to determine the fishing capacity of cantrang fisheries in Tegalsari fishing port. The fishing capacity analysis was carried out using fish landing data from PPP Tegalsari from 2008 to 2019. The measurement of technical efficiency by using the DEA (Data Envelopment Analysis) approach. The result showed that fishing capacity in 2013, 2015, 2017, 2018, and 2019 have to be maintained because it is in a fully utilized, and the rest of them were overcapacity caused by an excess capacity of the value of fishing gear and number of efforts. Keywords: Data Envelopment Analysis, Decision Making Unit, fish resources, fishing efficiency, Java Sea-Indonesia
THE FLUCTUATION OF CHLOROPHYLL-A CONCENTRATION DERIVED FROM SATELLITE IMAGERY AND CATCH OF OILY SARDINE (SARDINELLA LEMURU0)IN BALI STRAIT J. LUMBAN GAOL; WUDIANTO; B. P. PASARIBU; D. MANURUNG; R. ENDRIANI
International Journal of Remote Sensing and Earth Sciences Vol. 1 No. 1 (2004)
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.ijreses.2004.v1.a1325

Abstract

The investigation is aimed to know the relationship between chlorophyll-a (chl-a) concentration and the abundance of Oily sardine (Sardinella lemuru), in Bali Strait. A time series of monthly mean chl-a data derived from Ocean Color Thermal Scanner (OCTS) sensor and Sea-viewing Wide Field-of View Sensor (SeaWiFS) during 1997-1999 are used in this study.Monthly Sardinella lemuru catch during 1997-1999 are obtained from fish landing data. The abundance of Sardinella lemuru is determined from acoustic data conducted in Bali Strait inSeptember 1998 and May 1999. The result shows that the fluctuation of chlorophyll-a concentration in Bali Strait is influenced by monsoon and global climate change phenomena such as Dipole Mode (DM) event. During southeast Monsoon the upwelling process occurred around Bali Strait, so that the chl-a concentration is increased and during DM event occurred positive anomaly of chl-a concentration. The catch of Sardinella lemuru in Bali Strait is fluctuated during 1997-1999. The correlation between chl-a concentration and lemuru catch is positive and significant with certain time lag.
Co-Authors B. P. PASARIBU Budiarti, Tri Wahyu D. MANURUNG Eko Sri Wiyono J. LUMBAN GAOL R. ENDRIANI Tri Wiji Nurani Zulkarnain