Characteristics of octopus fishery in Ampana Tojo Una-Una Sea waters

Abstract

Octopus fishing activity have been established in Ampana Waters and surrounding areas since the 1990s. The goal of this research is to examine the octopus fishery in Ampana waters and its surroundings. The research methodology used in this study are CPUE and Length-based assessment which includes some analysis of catch per unit effort, fishing season, size structure, weigh distribution, length-weight relationship, fishing ground, fishing gear operation and specification, and the marketing flow. CPUE ranges from 7–15 kg/units/day, with an average of 11 kg/units/day; the fishing season runs from August to November; mantle length ranges from 8–22 cmML, and the length mode is 14 cmML; male octopus length ranges from 9–19 cmML, while the female ranges from 8–22 cmML; weight ranges from 300–2500 gr, with the male dominant at 800 gr and the female dominant at 1000 gr. Growth patterns for both males and females are negative allometric. Ampana fishermen fished around Tanjung Api, while Pagimana fishermen fished north of Bunta beach. Fishing equipment used included an octopus fishing rod, hook, and arrow, as well as aggregating devices such as gara-gara and a crustacean-like octopus fishing rod. The fishermen sold their catch to the first collector, who then delivered it to octopus middlemen in Ampana, Pagimana, and Luwuk before transporting it to Makassar.