BIOLOGI REPRODUKSI IKAN TENGGIRI (Scomberomorus commerson Lacepede, 1800) DI PERAIRAN TELUK KWANDANG, LAUT SULAWESI

Tegoeh Noegroho, Thomas Hidayat, Umi Chodriyah, Mufti Petala Patria

Research output: Contribution to journalArticlepeer-review

Abstract

The study on biological aspects of spanish mackerel in Indonesia is uncommon, whereas the exploitation have been conducted historically. Spanish mackerel in the Kwandang Bay caught by purse seiner and handliner. The reproductive biology of mackerel fish in Kwandang waters was unavailable, therefore more study needed. Kwandang is a new port, so the information related to Spanish mackerel in particular is very useful in data collection and management plan. This research aims to assess biological aspect such as the size structure, the length at first captured and reproductive biology aspects (gonad maturity stage, Gonado Somatic Index (GSI), sex ratio, length at first maturity, number and diameter of oosit). The study was conducted in FebruaryDecember 2012 in the Kwandang Bay waters, North Gorontalo regency. The results showed that the size structure ranged between 25-138 cmFL, with average mode 60 cmFL. The length at first capture caught (Lc) with purse seine and handline by 64,7 cmFL and 71,9 cmFL, respectively. The gonad maturity stage of the was dominated by 61,2% of immature and 38,8% of mature gonad. Gonado Somatic Index (GSI) peak was reached in May, and from this GSI value it is concluded that the Spanish mackerel spawned in May-July. The maximum
Original languageIndonesian
Pages (from-to)69-84
JournalBawal : Widya Riset Perikanan Tangkap
Volume10
Issue number1
DOIs
Publication statusPublished - 1 Apr 2019

Keywords

  • Tenggiri
  • reproduksi
  • pemijahan
  • Teluk Kwandang

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