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

Abstract

Pola pertumbuhan ikan yang ditentukan melalui hubungan panjang-bobotnya merupakan suatu pendekatan yang banyak diterapkan dalam pengelolaan perikanan dan dapat digunakan dalam menentukan kondisi ikan. Hubungan panjang-bobot dan faktor kondisi ikan selangat dianalisis dari ikan contoh yang dikumpulkan dari nelayan pada Juni hingga Agustus 2022 di Pantai Senggarang, Tanjungpinang. Penelitian bertujuan untuk menentukan pola pertumbuhan dan faktor kondisi ikan selangat. Sebanyak 422 ekor ikan contoh diukur panjang baku (mm) dan ditimbang bobotnya (g). Hasil penelitian menunujukkan bahwa nilai b sebesar 3,04 yang mengindikasikan pola pertumbuhannya isometrik. Nilai faktor kondisi berkisar pada 0,84 hingga 1,04. Pola pertumbuhan dan faktor kondisi tidak konstan, bervariasi musiman, berkait dengan banyak faktor seperti siklus reproduksi, ketersediaan makanan, dan faktor lingkungan dan habitatnya.

Growth and mortality model of Chacunda gizzard shad Anodontostoma chacunda (Bleeker, 1852) in Tarakan waters, North Kalimantan, Indonesia

“…Similar findings regarding the negative allometric of A. chacunda were reported by Das et al (2021) from Mersing Coastal Waters, Malaysia, and Dar et al (2014) from Mumbai Coast, India, with b values 2.534 and 1.985, respectively. A different growth pattern was found in A. chacunda from Tanjung Pinang, Indonesia, showing an isometric growth pattern with a b value of 3.04 (Zahid et al 2022). Growth pattern A. chacunda a coastal artisanal fishery, southern Bangladesh, obtained isometric growth with a value of b = 3.04 (Siddik et al 2016).…”

“…Anodontostoma chacunda from Tarakan has a mean length of 13.5±0.78 cm for males and 13.7±0,9 cm for females, which is known to be almost similar to fish from Johor, Malaysia (13.6±0.23 cm). However, they are smaller than fish from the coast of Mumbai (16.38±0.13 cm) and larger than fish from Tanjung Pinang waters (12.88±2.19 cm) (Dar et al 2014;Das et al 2021;Zahid et al 2022).…”

“…The Kn values calculated for males and females were 0.7804-1.165 (0.99±0.03) and 0.937-1.421(0.09±0.04), respectively. Meanwhile, the Kn value of A. chacunda from other locations (Mersing Coastal Waters, Johor, Malaysia) ranged between 1.075-1.204 (Das et al 2021) and 0.84-1.04 (Zahid et al 2022). The condition factor of fish may differ spatially (Kazarinov et al 2023) and temporally (Zahid et al 2022;Jisr et al 2018), among them are caused by differences in food (Orlov and Frenkel 2019) and physicochemical parameters (Wuave and Sabo 2023).…”

“…Research that has been done on A. chacunda is Lengthweight relationships of four fish species from a coastal artisanal fishery, southern Bangladesh (Siddik et al 2016); morphometric and meristic characters of Anodontostoma sp. from Bangka Belitung, Indonesia (Aisyah and Syarif 2019); growth pattern and condition factor of A. chacunda from Tanjungpinang, Indonesia (Zahid et al 2022).…”

“…The growth model of A. chacunda was analyzed using the length-weight relationship (Ferdoushi et al 2022) to determine fish stock conditions (Zahid et al 2022). The condition index value is an indicator value in analyzing the physiological and nutritional status of aquatic biota (Panicker and Katchi 2021), characteristics of growth patterns and age (Salim et al 2020a;Indarjo et al 2023b) using the Von Bertalanffy model (Indarjo et al 2022), and condition index analysis (Indarjo et al 2020a) used in fish physiology (Panicker and Katchi 2021) to analyze individual fish body shape (Salim et al 2021) or relative fish health within a specific population or individual (Salim et al 2020a).…”