Relative condition factor, length-weight relationship, and growth of three-spotted flounder, Pseudorhombus triocellatus from Parangipettai Coast, India

Abstract

Bharadhirajan P, Mahadevan G, Murugesan P, Murugan S, Pouladi M, Abbaspour Naderi R. 2019. Relative condition factor, length-weight relationship, and growth of three-spotted flounder, Pseudorhombus triocellatus (Bloch & Schneider, 1801) from Parangipettai Coast, India. Biodiversitas 20: 373-379. The three-spotted flounder, Pseudorhombus triocellatus is usually caught as trawl by-catch from Parangipettai coastal waters but regrettably, limited information on its age structure and growth is available. Hence, the present study aims to understand some basic parameters of its biology and growth. A total of 759 specimens (360 males and 399 females) ranging from 4 cm to 13 cm in total length (TL) and 5.26-35.41 g in weight were collected from the trawl catches of Parangipettai and Mudasalodai landing center during January–December 2015. The estimated growth coefficient (b) value for males (2.797) was greater than 3 and for females (3.023) was less than 3. The relative condition factor (Kn) values of females were higher than males except during February, June, and September. The values of asymptotic length (L∞) obtained in this study using various methods didn’t vary significantly (P>0.05). The most appropriate values of asymptotic length (Lα) for males were 137.11 mm and for females were 141.75 mm. The most appropriate values of growth rate (K) for males were 0.397 yr-1 and for females were 0.410 yr-1. The estimated length at age 0 (t0) for males and females were 0.197 mm and 0.292 mm, respectively. The longevity (tmax) of males and females P. triocellatus were 2.04 years and 2.24 years, respectively. The result of this study provides basic information for future studies.

Length-Weight Relationships and Condition Factor of Six Sole Fish species from Coastal Waters of Pakistan

“…The higher condition factor evaluated for E. orientalis at Korangi fish harbor, which showed the favorable environmental condition in the area. Similar condition factor was described from coastal waters of Parangipettai Coast, India [37]. The condition factor (K) of C. puncticeps and C. quardilineatus was 0.735 and 0.634 respectively (Table 3), showed the moderate favorable environmental condition in the area.…”

Length-weight relationships and ponderal index of three reef fish (Teleostei: Labridae) off the Tanjung Tiram coast, Southeast Sulawesi, Indonesia

“…The increased of ponderal index values during reproductive activity was also reported on family Characidae at Brazil river floodplain (Lizama and Ambrósio 2002), Trachurus mediterraneus in the Aegean Sea (Tzikas et al 2007), Johnius belangerii in Mayangan beach, Indonesia (Rahardjo and Simanjuntak 2008), Sardinella atricauda in Kendari Bay, Indonesia (Asriyana 2015), Pseudorhombus triocellatus in Parangipettai Coast, India (Bharadhirajan et al 2019). This phenomenon can be understood as during the time of spawning, the main energy source used for gonadal development and spawning (Lizama and Ambrósio 2002) resulting in the increased values of Gonado Somatic Index (GSI) and ponderal index.…”

Pola Pertumbuhan dan Faktor Kondisi Ikan Selangat (Anodontostoma chacunda, Hamilton 1822) di Perairan Pantai Senggarang, Tanjungpinang

“…Penelitian tentang pola pertumbuhan dan faktor kondisi ikan di perairan laut telah banyak dilaporkan, seperti pada sembilan jenis ikan di Tripoli-El Mina, Lebanon Utara (Jisr et al, 2018), ikan sebelah, Pseudorhombus triocellatus di Pantai Parangipettai, India (Bharadhirajan et al, 2019), ikan layang, Decapterus macrosoma yang didaratkan di Pelabuhan Perikanan Samudra Lampulo, Aceh (Afdhila et al, 2019), sembilan spesies ikan hasil tangkap sampingan di Pantai Brazil (dos Santos et al, 2022), dan ikan belanak, Mugil cephalus di perairan Taman Hutan Raya Ngurah Rai, Bali (Putra et al, 2021). Meskipun demikian, kajian mengenai topik yang sama di perairan Pantai Senggarang dan sekitarnya belum banyak dilaporkan.…”