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Journal : Journal of Fisheries

Dominansi dan Diversitas Lamun dan Makrozoobenthos pada Musim Pancaroba di Pantai Bama, Taman Nasional Baluran, Situbondo [Dominance and Diversity of Seagrass and Macrozoobenthos on Transition Season in Bama Beach, Baluran National Park, Situbondo] Sapto Andriyono; Daruti Dinda Nindarwi; Hapsari Kenconojatia; Daruti Dinda Nindarwi; Darmawan Setia Budia; Muhammad Hanif Azhar; Mohammad Faizal Ulkhaq
Jurnal Ilmiah Perikanan dan Kelautan Vol. 8 No. 1 (2016): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v8i1.11191

Abstract

AbstrakLamun merupakan tanaman berbiji terbuka yang mampu tumbuh dan beradaptasi dengan lingkungan bersalinitas tinggi serta dapat berasosiasi dengan benthos. Keberadaan lamun di perairan merupakan salah satu indikator tingkat kesuburan dan produktivitas perairan. Terdapat perbedaan dominansi antara musim hujan dan musim kemarau, sehingga enelitian ini bertujuan untuk mengidentifikasi dan menghitung dominansi dan keanekaragaman lamun dan makrozoobenthos pada musim pancaroba di Pantai Bama, TN Baluran, Situbondo. Metode penelitian yang digunakan yaitu line transect quadran dengan 5 line transek quadran yang masing-masingnya dipasang 5 plot transek. Ditemukan jenis lamun yang memiliki nilai kelimpahan tertinggi di Pantai Bama, TN Baluran pada musim pancaroba yaitu C. serrulata dengan nilai 48,90% , dan makrozoobenthos dari genus Holothuria dengan nilai 52,06%. Nilai Indeks dominansi (D) mengkategorikan Pantai Bama, TN Baluran dalam perairan dengan dominansi sedang. Sedangkan berdasarkan Indeks keanekaragaman (H') mengkategorikan Pantai Bama, TN Baluran dalam perairan dengan keanekaragaman rendah. Musim peralihan berpengaruh terhadap jenis, kelimpahan relatif, indeks dominansi dan indeks keanekaragaman lamun dan makrozoobenthos di Pantai Bama, TN Baluran dibandingkan musim kemarau dan hujan. Perlu dilakukan survei secara berkala untuk mengetahui keanekaragaman organisme yang berkaitan dengan produktivitas perairan. AbstractSeagrass is the one of plants that can grow and adaptataion with high salinity environment and associated with benthos. Seagrass presence that indicate the productivity and prosperity in waters environtment. Found a different dominance between rainy season and dry season, so The aims of this study to identify and count dominance and diversity of seagrass and macrozoobenthos on the transition season in Bama Beach, TN Baluran, Situbondo. The method was used is line transect quadran with 5 quadran each of which installed 5 plot transect. Seagrass species was founded that have the highest abundance values in Bama Beach, TN Baluran the transitional season is C. serrulata with a value of 48.90%, and the macrozoobenthos that found from genus Holothuria with a value of 52.06%. Dominance index value (D) categorize Bama Beach, TN Baluran with moderate dominance. While based on the diversity index (H ') categorizes Bama Beach, TN Baluran with low diversity. Transitional seasons affect the type, relative abundance, dominance index and seagrass diversity index and macrozoobenthos in Bama Beach, TN Baluran than the dry and rainy seasons. Needed to investigate the diversity of organism that related to primary produktivity.
Studi Identifikasi dan Prevalensi Endoparasit pada Saluran Pencernaan Ikan Kerapu Tikus (Cromileptes altivelis) di Keramba Jaring Apung Unit Pengelola Budidaya Laut Situbondo, Jawa Timur [Prevalence Study And Identification Of Endoparasites On Humpback Grouper Gastrointestinal (Cromileptes altivelis) In Floating Net Cage Marine Culture Management Unit Situbondo, East Java] Kismiyati Kismiyati; Rahayu Kusdarwati; Mohammad Faizal Ulkhaq
Jurnal Ilmiah Perikanan dan Kelautan Vol. 4 No. 1 (2012): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v4i1.11591

Abstract

Abstract Humpback grouper (Cromileptes altivelis) or also known as polkadot grouper is one of the excellent fish commodities in Indonesia which has trading value reached $ 90-150/kg. As a consumed fish, humpback grouper are needed for beverage at luxuries restaurant and hotel in the world. As major export commodities in Indonesia, since the 1990's the techniques of grouper cultivation in float net rats are enhanced to fulfill international market demand. Humpback grouper fish cultivation techniques in float net cages cannot be separated from the problems in any cultivate activities, one of the causes is a disease and one of the diseases that rushed humpback grouper is parasite. The disadvantages that caused by the parasite is fish' weight loss. The purpose of this study is to determine the types of endoparasites that attacked the digestive system of humpback grouper (Cromileptes altivelis) in float net cages and also to discuss the prevalences of endoparasites that attack the digestive of humpback grouper (Cromileptes altivelis) in float net cages. The method of this research is descriptive. The sampling was done in once for 60 fishes with the length range of fish is around 15-20 cm and 4 months old from the float net. The number of each fishes samples that were taken 5-10% from the total of population, where the number of humpback grouper populations in each raft float net are 200 fishes. The main parameters that observed in this study were endoparasites identification species that attack the digestive system of humpback grouper (Cromileptes altivelis) in float net cages and the prevalence rates for each endoparasites. The supporting parameters in this study were the water quality in float net cages which includes temperature, pH and salinity are measured during the sample taken. The results showed that 60 samples taken from four float nets 6 fishes were positive infected endoparasitic of trematodes and nematodes, besides 4 fishes are positive infected worms Echinostoma which belong to the class of Trematodes and 2 fishes infected worms Camallanus carangis that belongs to the class Nematoda. The prevalence values for each of the worm are 6.67% for Echinostoma and 3.33% for Camallanus carangis. The research concern the identification and prevalence of endoparasites in Humpback grouper at hatchery is needed to early finding out the attack of endoparasites and to break the flow of endoparasitic spreading.