PENDUGAAN UMUR UDANG BINTIK PUTIH (Metapenaeus lysianassa) HASIL TANGKAPAN SIANG HARI DI PERAIRAN SAMBOJA KUALA KABUPATEN KUTAI KARTANEGARA

The waters of Samboja Kuala are areas rich in fishery resources. Bird Shrimp (Metapenaeus lysianassa) is one of the biggest catches in Samboja Kuala, Kutai Kartanegara Regency, this shrimp is caught using trawl during the day. The purpose of this study is to determine the sex ratio, estimated age of shrimp, estimated mortality, and recruitment patterns. This research was conducted in November-December 2019. The result showed that the sex ratio of male and female Bird Shrimp (Metapenaeus lysianassa) was 1.00: 26.78. The growth rate (K) of male Bird Shrimp was 0.39 and in female Bird Shrimp was 0.86 and the estimated value of length in nature (L∞) of male Bird Shrimp was 66.59 and in female Bird Shrimp was 80,11. Mortality rates in male Bird Shrimp die faster than female shrimp caused by factors of natural conditions. The new addition (Recruitment) of Bird Shrimp occurred at the peak of August with the proportion in male shrimp of 22.88%, and in female shrimp of 22.17%