Fluctuation of Asymmetry of Hybrid Cantang Grouper (Epinephelus fuscoguttatus x Epinephelus lanceolatus) Originating from Situbondo and Bali

Abstract

Asymmetric fluctuations function as a measure of organ stability in pairs in an individual. This study aims to determine the value of asymmetric fluctuations in hybrid grouper hybrid fish from Situbondo and Bali. The study was conducted for 3 months, starting from July-September 2018. The grouper used in this study was 100 individuals from each region, with a size of 7-9 cm. Bilateral meristic characters measured include the pectoral fin, ventral fin and lateral line. The results showed that the ventral fin character of the grouper fish from Situbondo and Bali had a higher FA value of 0.6-0.7, while the lateral linea organ had a higher FAm value, 1.1 to 1.9. The FAgb value of the grouper originating from Situbondo has a high value compared to the grouper from Bali, which is 1.5-2.4.

Fluctuating asymmetry patterns of common carp (Cyprinus carpio) in fish hatchery center of Kabat, Banyuwangi, Indonesia

“…The highest FAm and FAn in lateral line scales also occurred in previous study in Nile tilapia (Oreochromis niloticus) [5,14] and Cantang hybrid grouper (Epinephelus fuscoguttatus & Epinephelus lanceolatus) [16]. In species, fluctuating asymmetry refers to non-directional variations from ideal bilateral structure symmetry [19,20].…”

“…This is predicted because the scales number of lateral line higher than the radii number of ventral and pectoral fins, so the energy used for lateral line scales development is higher. The fluctuating asymmetry overall value (FAm and FAn) shows a lower value than other species such as Nile tilapia [5,14] and Cantang hybrid grouper [16]. However, the value of fluctuating asymmetry overall in present study are relatively high.…”

“…Previous research on fluctuating asymmetry of common carp [13], Nile tilapia (Oreochromis niloticus) [5,14], Chinook Salmon (Oncorhynchus tshawytscha) [15] and cantang hybrid grouper (Epinephelus fuscoguttatus x Epinephelus lanceolatus) [16] has been obtained to determine the fry quality as basic knowledge for the breeding programs. This research purposes to obtain qualitative representation about the degree of asymmetry on common carp fry in the Fish Hatchery Center of Kabat as a consideration for the breeding program.…”

Manajemen Kesehatan Larva Kerapu Cantang (Epinephelus fuscoguttatus x Epinephelus lanceolatus) di BBRBLPP Gondol

“…Di indonesia ikan kerapu menjadi komoditas ekspor ke berbagai negara di asia tenggara seperti singapura, vietnam, malaysia dan negara asia timur seperti taiwan, china dan hongkong (Ismi, 2017;. Dengan tingginya permintaan pasar ekspor akan kerapu maka di Indonesia dikembangkan berbagai inovasi untuk pembenihan ikan kerapu yaitu dengan metode hibridisasi (Ismi et al, 2014;Lutfiyah & Budi, 2019). Salah satu jenis ikan kerapu hasil inovasi hibridisasi dan menjadi primadona pasar ekspor yaitu ikan kerapu cantang (E. fuscoguttatus x E. lanceolatus) (Ismi, 2017).…”

SURVIVAL RATE of TIGER GROUPER LARVA (Epinephelus fucoguttatus) HOUSEHOLD SCALE ON THE NORTH COAST of BALI

“…Tiger grouper (Epinephelus fuscoguttatus) is a leading aquaculture commodity in Indonesia and has been exported to various countries (Lutfiyah & Budi, 2019). Tiger grouper (Epinephelus fuscoguttatus) has become a favorite for grouper cultivators in Indonesia and is quite popular because it has a stable selling price, is easy to cultivate, easy to grow and has a relatively fast growth.…”