Fish conservation status in eastern part of segara anakan Cilacap Indonesia

Abstract

Segara Anakan is an estuarine ecosystem located on the southern coast of Central Java Province which is very fertile with high biodiversity. However, the current condition is thought to have experienced a decline in biodiversity caused by sedimentation, overexploitation and water pollution problems so that it is feared that it will disrupt the preservation of organisms including fish. The purpose of this study was to determine the diversity of fish found in Segara Anakan Cilacap, and to know the conservation status of each species of fish caught in Segara Anakan in eastern Cilacap. This research was conducted using a survey method with cluster random sampling technique at 6 stations (3 stations on the Sapuregel River and 3 stations on the Kembangkuning River) with 3 replications each during highest tide. Fish collection is done by using a net and gillnet or gillnet that is installed during low tide and carried out during high tide. The diversity of fish in the waters of Segara Anakan is 36 species from 25 families. There are 16 species from 15 families in the Donan River and 34 species from 25 families in the Sapuregel River. The diversity of fish in the Sapuregel River is higher than in the Donan River. The status of fish in the eastern Segara Anakan waters management area is mostly in the LR (Least Concern) or low risk status and 1 NT (Near Threatened) species or threatened with extinction namely Sidat Fish (Anguilla bicolof)

Komposisi, Keanekaragaman, dan Relung Ekologi Ikan di Plawangan Timur Segara Anakan, Jawa Tengah

“…Wilayah Pelawangan Timur Segara Anakan menjadi salah satu estuari yang mengalami tekanan sangat tinggi sebab berada di wilayah industri. Beberapa industri yang ada di wilayah Cilacap diantarnya adalah proses pengolahan minyak, bongkar muatan minyak, dan industri lain yang menghasilkan berbagai material ke perairan (Piranti et al, 2019) dan hal tersebut berpotensi untuk berpotensi untuk mencemari perairan Segara Anakan (Wibowo et al, 2018).…”

“…Kajian terkait iktiofauna ikan di perairan Segara Anakan telah banyak dilakukan seperti oleh Subiyanto & Cahyono et al (2008); Suprastini et al (2014); Nurfiarini et al (2015); Piranti et al (2019); & Setyaningrum et al (2020) yang membahas keanekaragaman serta distribusi ikan, termasuk di bagian Pelawangan Timur. Akan tetapi, kajian tersebut terbatas pada keanekaragamannya saja, sedangkan kajian komprehensif terkait hubungan antara faktor lingkungan dengan keberadaan komunitas ikan di perairan tersebut belum pernah dilakukan.…”

“…Hasil penelitian ini dapat mengumpulkan ikan sejumlah 120 individu selama dua kali pengambilan sampel pada empat lokasi yang dapat dikategorikan menjadi 21 spesies, 19 famili dan 11 ordo. Perbandingan jumlah spesies hasil penelitian ini dengan hasil penelitian sebelumnya di lokasi yang sama cenderung lebih rendah sebab pada penelitian terdahulu berhasil mengidentifikasi 34 spesies ikan dari 1446 individu ikan yang terkumpul (Piranti et al, 2019). Perbedaan jumlah spesies ikan yang teridentifikasi dapat disebabkan oleh adanya perbedaan alat tangkap yang digunakan.…”

Gut and intestinal biometrics of the giant trevally, Caranx ignobilis, fed an experimental diet with difference sources of activated charcoal

“…These fish are distributed in tropical, subtropical, and temperate waters 2 – 7 . In Indonesia, trevally fish are found in the Aceh waters 8 , 9 , East Borneo 10 , Papua and Wester Nusa Tenggara 11 , 12 , and Java 13 .…”

Gut and intestinal biometrics of the giant trevally, Caranx ignobilis, fed an experimental diet with difference sources of activated charcoal

“…These fish are distributed in tropical, subtropical, and temperate waters 2-7 . In Indonesia, trevally fish are found in the Aceh waters 8,9 , East Borneo 10 , Papua and Wester Nusa Tenggara 11,12 , and Java 13 .…”