Pertumbuhan dan Laju Eksploitasi Cumi-cumi (Uroteuthis sp.) yang Tertangkap di Perairan Selat Malaka Belawan Sumatera Utara

Abstract

Squid (Uroteuthis sp.) is a commercially important commodity in the fisheries activities of the Malacca Strait waters. However, squid production has been declining, and information regarding its growth and exploitation rate in this region remains limited. This study was conducted from June 2024 to September 2024 with the aim of determining the morphology, growth, and exploitation rate of squid (Uroteuthis sp.) in the Malacca Strait waters. The results showed the presence of two squid species in the Malacca Strait: Uroteuthis chinensis and Uroteuthis duvaucelii. Growth parameter estimation using the Von Bertalanffy method for U. chinensis in the Malacca Strait waters revealed an asymptotic length (L∞) of 591.4 mm, a growth coefficient (K) of 1.01 per year, and an age at zero length (t0) of -1.1595. For U. duvaucelii, the parameters were L∞ of 413.5 mm, K of 1.30 per year, and t0 of -1.2305. The growth pattern of Uroteuthis sp. in the Malacca Strait waters exhibited negative allometric growth (b < 3), with the equation W = 0.004L2,0381 for U. chinensis and W = 0.0023L2,1088 for U. duvaucelii. The exploitation rates for U. chinensis and U. duvaucelii were -0.5274 and -3.7056, respectively, indicating that the exploitation rate of Uroteuthis sp. in the Malacca Strait waters does not exceed the optimum value (0.5).