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Pengaruh Suhu dan Salinitas Terhadap Respon Fisiologi Larva Tiram Mutiara Pinctada maxima (Jameson) Winanto, Tjahjo; Soedharma, Dedi; Affandi, Ridwan; Sanusi, Harpasis S.
JURNAL BIOLOGI INDONESIA Vol 6, No 1 (2009): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (247.755 KB) | DOI: 10.14203/jbi.v6i1.3171

Abstract

ABSTRACTPENDAHULUANPinctada maxima adalah spesiesakuakultur yang mempunyai nilaiekonomi tinggi (Taylor et al. 1997). Dipasaran internasional, mutiara yangdiproduksi sering kali disebut dengannama “South Sea Pearl”. Indonesiatermasuk salah satu negara penghasilmutiara (South Sea Pearl) yang cukupdiskenal di pasaran dunia, sebagian besarproduksi South Sea Pearl yang dipasarkanberasal dari hasil budidaya (Anna2006). Produksi mutiara berbasisbudidaya merupakan aktivitas usaha yangmenguntungkan. Perkembangan usahabudidaya mutiara saat ini sudah mengarahpada kegiatan industri yang terintegrasi(Fassler 1995).The Effect of Temperature and Salinity to The Physiological Respons on The Larvae ofPinctada maxima (Jameson). Energy budget is one of the most sensitive tools available forindividual assessing environmental changes like temperature and salinity, and also prerequisitefor individual growth and survival. The aim of this study is to obtained information on energybudget on routine metabolism, in different levels of temperature and salinity, and to know thelevels of optimum temperature and salinity. The research was used randomized block design,with three replications. The result showed that optimal temperature and salinity on P. maximalarvae was 28 oC and 32 – 34 ‰ (BE and BF). Energy budget to routine metabolism increasedwas attributed to increased temperature and salinity due to the optimal, than would be decreasedwhen temperature and salinity increased. The highest of energy budged for routine metabolismat treatment BF. Stage I: energy budged between 6.73 – 7.35 C g wet weight-1 hour-1 (28.18 –30.74 J g wet weight-1 hour-1); Stages II: 5.85 – 5.95 C g wet weight-1 hour-1 (24.48 – 24.90 J g wetweight-1 hour-1); Stages III: 4.73 – 4.80 C g wet weight-1 hour-1 (15.07– 19.58 J g wet weight-1hour-1). The highest survival rate of larvae was by treatment BF, but has not higher significant(P e” 0.05) with BE, stage I: survival rate between 87.75 – 87.92 %; Stage II: 81.91 – 82.39 % andstage III: 76.72 – 77.26 %. The best of relative growth length of larvae by treatment BF and notsignificant (P e” 0.05) with BE, at stage I: 29.78 x 17.93 ?m – 30.57 x 18.43 ?m (AP x DV); stageII: 57.62 x 46.73 ?m – 58.13 x 47.33 ?m and stage III: 80.32 x 69.29 ?m – 80.88 x 69.62 ?m. Thequickest time of plantigrade stages have found by treatment BF (day 19.50) and hasn’tsignificant (P > 0.05) with BE (day 20.85).Keywords: Pinctada maxima, larvae, response; physiology, metabolism.Kata kunci: Pinctada maxima, larvae, respon, fisiology, metabolisme.
PENGARUH SUHU DAN SALINITAS TERHADAP RESPON FISIOLOGI LARVA TIRAM MUTIARA PINCTADA MAXIMA (JAMESON) Winanto, Tjahjo; Soedharma, Dedi; Affandi, Ridwan; Sanusi, Harpasis S.
JURNAL BIOLOGI INDONESIA Vol 6, No 1 (2009): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v6i1.3171

Abstract

ABSTRACTPENDAHULUANPinctada maxima adalah spesiesakuakultur yang mempunyai nilaiekonomi tinggi (Taylor et al. 1997). Dipasaran internasional, mutiara yangdiproduksi sering kali disebut dengannama ?South Sea Pearl?. Indonesiatermasuk salah satu negara penghasilmutiara (South Sea Pearl) yang cukupdiskenal di pasaran dunia, sebagian besarproduksi South Sea Pearl yang dipasarkanberasal dari hasil budidaya (Anna2006). Produksi mutiara berbasisbudidaya merupakan aktivitas usaha yangmenguntungkan. Perkembangan usahabudidaya mutiara saat ini sudah mengarahpada kegiatan industri yang terintegrasi(Fassler 1995).The Effect of Temperature and Salinity to The Physiological Respons on The Larvae ofPinctada maxima (Jameson). Energy budget is one of the most sensitive tools available forindividual assessing environmental changes like temperature and salinity, and also prerequisitefor individual growth and survival. The aim of this study is to obtained information on energybudget on routine metabolism, in different levels of temperature and salinity, and to know thelevels of optimum temperature and salinity. The research was used randomized block design,with three replications. The result showed that optimal temperature and salinity on P. maximalarvae was 28 oC and 32 ? 34 ? (BE and BF). Energy budget to routine metabolism increasedwas attributed to increased temperature and salinity due to the optimal, than would be decreasedwhen temperature and salinity increased. The highest of energy budged for routine metabolismat treatment BF. Stage I: energy budged between 6.73 ? 7.35 C g wet weight-1 hour-1 (28.18 ?30.74 J g wet weight-1 hour-1); Stages II: 5.85 ? 5.95 C g wet weight-1 hour-1 (24.48 ? 24.90 J g wetweight-1 hour-1); Stages III: 4.73 ? 4.80 C g wet weight-1 hour-1 (15.07? 19.58 J g wet weight-1hour-1). The highest survival rate of larvae was by treatment BF, but has not higher significant(P e? 0.05) with BE, stage I: survival rate between 87.75 ? 87.92 %; Stage II: 81.91 ? 82.39 % andstage III: 76.72 ? 77.26 %. The best of relative growth length of larvae by treatment BF and notsignificant (P e? 0.05) with BE, at stage I: 29.78 x 17.93 ?m ? 30.57 x 18.43 ?m (AP x DV); stageII: 57.62 x 46.73 ?m ? 58.13 x 47.33 ?m and stage III: 80.32 x 69.29 ?m ? 80.88 x 69.62 ?m. Thequickest time of plantigrade stages have found by treatment BF (day 19.50) and hasn?tsignificant (P > 0.05) with BE (day 20.85).Keywords: Pinctada maxima, larvae, response; physiology, metabolism.Kata kunci: Pinctada maxima, larvae, respon, fisiology, metabolisme.
KETERKAITAN STRUKTUR KOMUNITAS MEIOFAUNA DENGAN KERAPATAN LAMUN DAN PARAMETER LINGKUNGAN DI SELAT DOMPAK, KEPULAUAN RIAU Zulkifli, Zulkifli; Soedharma, Dedi; Wardiatno, Yusli; Sanusi, Harpasis S.
Jurnal Perikanan dan Kelautan Vol 12, No 01 (2007)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.12.01.15-22

Abstract

A study on the relationship between meiofauna community structure with seagrassdensity and environmental parameters has been carried out in the Dompak Straitwaters, Riau Archipelago. This study were investigated on four different seasonsthroughout a year, from May 2005 to April 2006. Three sampling site, i.e.., Al, A2and A3 were chosen to represent research sites. The sediment samples were tekenby PVC cores, in which six layers were separated (i.e. 0-5 cm, 5-10 cm, 10-15 cm,15-20 cm, 20-25 cm and 25-30 cm). The environmental parameters, such ascurrent velocity, the sediment composition, total organic carbon (TOO, totalorganic matter (TOM), pH and redox potential (Eh), were also observed. The dataon meiofauna, seagrass density and environmental parameters were analyzedstatistically by a regression analyisis. This analysis was run using a SPSS softwareversion 11.5 for Windows. The meiofauna was dominated by Nematodes,Copepods, Polychaetes, Foraniiniferans and Turbellarians. The results areshowing that the meiofaunal community structure would depend on severalconditions such as seagrass density, environmental factors and hydrologicalcharacteristics. The regression results are showing that the meiofaunal communitystructure patterns was significantly correlated with seagrass density and to theenvironmental parameters. Vertically, the meiofaunal community structurepatterns seems to be more affected by TOC and TOM. While the horizontally, itseems to he more affected by current velocity, TOM and pH.