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Gonad maturity induction of spawning larval breeding and growth in the american pearl oyster pteria sterna gould

, : Gonad maturity induction of spawning larval breeding and growth in the american pearl oyster pteria sterna gould. California Fish & Game 77(4): 181-193

Adult specimens of the American pearl oyster (Pteria sterna, Gould) were collected from Bahia de los Angeles, Gulf of California in September 1985. Oysters were brought to spawn after a period of conditioning and after temperature manipulation, were artificially fertilized. Veliger larvae were reared for 32 days at 23.0 22.5, 18.2, and C, but metamorphosis was not achieved. In October 1985 young specimens were transplanted to plastic boxes and their growth was studied in situ for a period of 10 months. Their specific growth rate averages 0.10 mm day-1 and was positively correlated with ambient water temperature. Thus, specific growth rate was significantly greater (P < 0.05) during the warm season.


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Serretti, A.; Mandelli, L.; Giegling, I.; Schneider, B.; Hartmann, A.M.; Schnabel, A.; Maurer, K.; Möller, H-Jürgen.; Rujescu, D., 2006: HTR2C and HTR1A gene variants in German and Italian suicide attempters and completers. The serotonin 2C (HTR2C) and 1A (HTR1A) receptors have been involved in suicide-related behaviors. We studied gene variants of both receptors in suicide attempters and completers. The sample was composed of 167 German suicide attempters (affectiv...

Ogden, K.M.; Ramanathan, H.N.; Patton, J.T., 2011: Residues of the rotavirus RNA-dependent RNA polymerase template entry tunnel that mediate RNA recognition and genome replication. To replicate its segmented, double-stranded RNA (dsRNA) genome, the rotavirus RNA-dependent RNA polymerase, VP1, must recognize viral plus-strand RNAs (+RNAs) and guide them into the catalytic center. VP1 binds to the conserved 3' end of rota...

Jaeger, H., 1954: Malignancy of melanoma. Minerva Dermatologica 29(5): 168-171

Vitale G.C.; Larson G.M.; Davidson P.R.; Bouwman D.L.; Weaver D.W., 1987: Analysis of hyperamylasemia in patients with severe head injury. To evaluate the influence of severe head injury (SHI) on amylase activity, we studied the amylase profile of 60 patients with SHIs and Glasgow Coma Scores < 10. Fourteen additional multiple trauma patients without head injuries were studied as...

George, J.E.; Quattrone, M.S.; Goldstone, M., 1996: Risk management spotlight: increased risk potential of the ED triage nurse. Journal of Emergency Nursing: Jen 22(3): 241-241

Drobni, A., 1964: One-Stage Proctocolectomy With Anal Ileostomy. Diseases of the Colon and Rectum 7: 416-417

Bovornkitti S.; Nana A., 1988: The tropical lung. Seminars in Respiratory Medicine 9(4): 425-431

Aeschlimann, J., 1980: Extin, a herbicide with a broad spectrum of activity against annual and perennial weeds. Extin, a mixture of bromphenoxim, MCPP, 2,4,5-T and dicamba, applied at 5 kg/ha increased yields of winter wheat cv. (a) Zenith and (b) Probus, (c) winter barley cv. Secura (d) rye cv. Kustro, (e) spring wheat cv. Kolibri and (f) spring barley cv....

Bagtzoglou, A.C., 2002: Development and testing of a model for predicting dripping into unsaturated rock underground excavations. The main aim of this paper is to present a probabilistic analytical formulation of unsaturated flow through a single rough multi-segmented fracture, with the ultimate goal to provide a numerical platform with which to perform calculations on the d...

Wang Kai; Yao Zhenxing, 1991: Upper mantle P-velocity structure in the northern region of the Qinghai-Tibet Plateau. Earthquake Research in China = Zhongquo Dizhen 4(2): 37-46