Length-weight relationship and population genetic of two marine gastropods species (Turbinidae: Turbo sparverius and Turbo bruneus) in the Bird Seascape Papua, Indonesia

Abstract

Abstract. Saleky D, Setyobudiandi I, Toha HA, Takdir M, Madduppa HH. 2016. Length-weight relationship and population genetic of two marine gastropods species (Turbinidae: Turbo sparverius and Turbo bruneus) in the Bird Seascape Papua,. Turbo sparverius and Turbo bruneus are herbivorous grazers gastropod that lived on the rocky intertidal area, which have a role in maintaining algae on the intertidal ecosystem. Local people in Papua have exploited them for food and souvenirs. Even though this exploitation might affect their genetic diversity and population, a study of the genetic structure of these species has not been previously reported. This study aimed to analyze the morphometric, genetic diversity, population structure and connectivity of T. sparverius and T. bruneus in coastal water of West Papua, Indonesia. The results showed that the growth pattern of T. sparverius and T. bruneus in all populations were negative allometric, which means that weight gain was slower than length. Haplotype diversity value of all population T. sparverius and T. bruneus were 0.657-0.705 and 0.739-0.816, respectively. In addition, the haplotype diversity of each population showed a high level of diversity. The genetic structure was found in all population of T. sparverius and T. bruneus with F ST value-0.037-0.201 and 0.031, respectively. Population structure and phylogenetic tree showed the closeness of genetic due to gene flow between both T. sparverius and T. bruneus. Genetic distance value between populations T. sparverius and T. bruneus are very low were 0.002 and 0.003-0.004, respectively. High genetic similarity might occur due to condition and direction of current flow mediating of gene transport among population, and the similarity of habitats in each population.

Morphogenetic and population structure of two species marine bivalve (Ostreidae: Saccostrea cucullata and Crassostrea iredalei) in Aceh, Indonesia

“…The tidal currents in the Indonesian waters are strong and affect the vertical water mass mixing. Potential factors that play a role in organism distribution are the current conditions and duration of larvae in the waters (Saleky et al 2016).…”

Riset Dan Inovasi Terumbu Karang Dan Proses Pemilihan Teknik Rehabilitasi: Sebuah Usulan Menghadapi Gangguan Alami Dan Antropogenik Kasus Di Kepulauan Seribu

“…Beberapa karang keras dan karang lunak sudah dikaji untuk tingkat pertumbuhannya melalui transplantasi (Subhan et al, 2012). Beberapa kajian tentang konektivitas karang (termasuk karang lunak) sudah dilakukan di Indonesia, diantaranya oleh dan biota lainnya oleh Saleky et al, (2016). Keragaman genetika pada terumbu karang dan biota asosiasi sangat penting diketahui untuk mengkaji tingkat resiliensi serta sebagai plasma nutfah untuk di ekosistem tersebut , Jefri et al, 2015.…”

Mollusc fisheries and length–weight relationship in Tonle Sap flood pulse system, Cambodia

“…Analyses of these characteristics, i.e., length-weight relationship (LWR), are useful for informing the management of the stocks (e.g., stock assessment) and are important to determine individual and population conditions (Hilborn and Waiters, 1992;Simon et al, 2014). Moreover, the analyses of LWR of molluscs can also provide an indication of environmental conditions in which they inhabit because their maturity stages are affected by surrounding environmental variables, e.g., hydrology, food availability, water quality and temperature (Simon et al, 2014;Saleky et al, 2016).…”