Observations on the ecology of Hepsetus odoe, Bloch, 1794 (Pisces: Hepsetidae) in Epie Creek floodplain, Niger Delta, Nigeria

The distribution, abundance, age and growth, the food and feeding habits, condition factor and reproduction of Hepsetus odoe in the Epie Creek Floodplain (Nigeria) was studied. H. odoe occur in the creek, swamp channel and lake. It is a very common, abundant and one of the major commercial species. A total of 457 specimens weighing 76.90 kg were caught during the period of investigation. The catches were more abundant in the dry season than in the wet season. The total length ranged from 10 cm to 46 cm while the weight varied between 50 g and 900 g. Six distinct components or year classes were observed using Bhattacharya's method. A growth exponential value 'b' was 3.35 with condition factor, 'k' values ranging from 0.69 to 0.83. The main diets of Hepsetus odoe were fish, including crustaceans (shrimps) and insects. The mean fecundity was 6060 plus or minus 358 eggs (range 2,769 to 6.667 eggs). The ova diameter of H. odoe was found to range from 2.2 mm to 2.6 mm with overall mean = 2.4 plus or minus 0.1)

Front pages with contents of No. 46, 1988

Cover. Information for supporters of the Charles Darwin Foundation. Contents.

Back pages of No. 46, 1988

Back cover. Members of Charles Darwin Foundation. Map of Galapagos.

On the sensillae of the limbs of Cladocera. [Translation of: Zoologicheskie Zhurnal 46, 286-288, 1967]

Sensillae of the limbs of Cladocera are described with emphasis on Eurycercus lamellatus.

Mechanism of mass transfer in the formation of hydrothermal deposits of sulphides [Translation from: Trudy Inst.Geol.rudn.Mesterozh. 16, 80 [pages 44-46 ”Solubility of sulphides of iron” only], 1958]

This partial translation of the original paper provides the summary of this study of the mechanism of mass transfer in the formation of hydrothermal deposits of sulphides. For determining the solubility of sulphides of iron, the radioactive isotope Fe59 was used. The solubility of two sulphides was determined.

Efeito do tratamento periodontal em pacientes com doença renal crônica

O objetivo deste trabalho foi avaliar o efeito do tratamento periodontal sobre marcadores (PCR, albumina, colesterol e triglicerídeos) em indivíduos com Doença Renal Crônica (CRD) bem como sobre o curso da progressão dessa doença. Vinte e seis pacientes, idade média de 60 ( 11,2) anos, com Doença Renal Crônica estágios 3 e 4 com periodontite crônica não severa e severa receberam terapia básica periodontal. Parâmetros clínicos periodontais incluíram Índice de Placa (IP), Sangramento à Sondagem (SS), Profundidade de Bolsa à Sondagem (PBS), Nível de Inserção à Sondagem (NIS). A taxa filtração glomerular estimada (ml/min/1.73 m2) e níveis séricos de proteína C-reativa (mg/dl) (PCR), triglicerídeos (mg/dl), colesterol total (mg/dl) e albumina (g/dl) foram avaliados no dia zero e noventa dias após o tratamento periodontal. No dia zero, os percentuais médios de sítios com PBS ≥ 4mm e NIS ≥ 4mm eram de 23,7 ( 11) e 38,2 ( 16,5), respectivamente. Três meses após, os valores correspondentes diminuíram para 13,3 ( 8,0) e 33,4 ( 16,6). O percentual médio de sítios com PBS ≥ 6mm e NIS ≥ 6 mm diminuiu de 7,8 (8,6) e 24,5 (19,3) para 2,9 (5,1) e 23,8 (20,3). Os valores médios no dia zero de PCR, albumina, triglicerídeos e colesterol total eram de 1,0 mg/dl (1,0), 4,4 g/dl (0,4), 160 mg/dl (61,5), 200,1 mg/dl (36,9), enquanto que 90 dias após o tratamento os valores correspondentes foram de 0,8 mg/dl (0,6), 4,4 g/dl (0,3), 155,8 mg/dl (65,6), 199,5 mg/dl (46), respectivamente. Não havia diferença estatística entre os parâmetros laboratoriais, entre os dias 0 e 90. No dia 0, as taxas da filtração glomerular estimada foram de 41,6 ml/min/1.73m2 (13,1), enquanto no dia 90 esses valores foram de 45 ml/min/1.73m2 (15,7) (p<0.05). Concluiu-se que após o tratamento periodontal os parâmetros clínicos periodontais e a taxa de filtração glomerular estimada melhoraram significantemente e houve uma tendência para diminuição dos níveis de PCR. O significado clínico do aumento da taxa filtração glomerular estimada é discutível. Estudos longitudinais com tempos de observação mais longos são necessários para avaliar se o tratamento periodontal pode oferecer benefício para o paciente renal crônico.

Benthic habitats of Fish Bay, Coral Bay and the St. Thomas East End Reserve

NOAA’s National Centers for Coastal Ocean Science Biogeography Branch has mapped and characterized large portions of the coral reef ecosystems inside the U.S. coastal and territorial waters, including the U.S. Caribbean. The complementary protocols used in these efforts have enabled scientists and managers to quantitatively and qualitatively compare marine ecosystems in tropical U.S. waters. The Biogeography Branch used similar protocols to generate new benthic habitat maps for Fish Bay, Coral Bay and the St. Thomas East End Reserve (STEER). While this mapping effort marks the third time that some of these shallow-water habitats (≤40 m) have been mapped, it is the first time that nearly 100% of the seafloor has been characterized in each of these areas. It is also the first time that high resolution imagery describing seafloor depth has been collected in each of these areas. Consequently, these datasets provide new information describing the distribution of coral reef ecosystems and serve as a spatial baseline for monitoring change in the Fish Bay, Coral Bay and the STEER. Benthic habitat maps were developed for approximately 64.3 square kilometers of seafloor in and around Fish Bay, Coral Bay and the STEER. Twenty seven percent (17.5 square kilometers) of these habitat maps describe the seafloor inside the boundaries of the STEER, the Virgin Islands National Park and the Virgin Islands Coral Reef National Monument. The remaining 73% (46.8 square kilometers) describe the seafloor outside of these MPA boundaries. These habitat maps were developed using a combination of semi-automated and manual classification methods. Habitats were interpreted from aerial photographs and LiDAR (Light Detection and Ranging) imagery. In total, 155 distinct combinations of habitat classes describing the geology and biology of the seafloor were identified from the source imagery.

Effects of supplementary feeds on growth and survival of freshwater giant prawn (Macrobrachium resenbergii [i.e. rosenbergii] deMan)

Highest growth of prawn was obtained with Feed B (743 kg/ha) with highest survival rate (60.88%) followed by Feed A where production and survival rate was 659 kg/ha and 53.50%, respectively. Feed A contained 30% dry ground cow viscera, 40% oil cake, 20% rice-bran and 10% heat bran. Feed conversion ratios were found to be 7.60:1 for Feed A and 6.46:1 for Feed B, which indicated that Feed B was more efficiently utilized by the prawn than Feed A. Statistical analysis revealed that the differences in production of prawns among the treatments were highly significant (P< 0.01).

47,XY,+dcl(9)(q34)wcp(9+)/46,XY伴隐睾一例

患儿男,10岁,因"双侧隐睾"就诊.患儿系足月、顺产、5岁时发现头颅大,经医院诊断为脑积水.几岁时做双侧隐睾手术.患儿身高120 cm.头颅发育不规则,颜面不对称,自小严重的智力低下,说话不清.

Comparison of benthic fauna of two beels under different management system

A comparative study of benthic fauna between Rajdhala beel and Padmai beel of Netrakona District under different management system was carried out from July 1999 to January 20OO. An average number of 1113 and 1175 organisms/m2 were obtained from Rajdhala heel and Padmai beel respectively. A total of 22 taxa belonging to 8 diverse groups, Oligochaetes, Chironomids, Molluscs, Ceratopogonids, Diptera (other than Chironomids and Ceratopogonids), Ephemeroptera, Leeches and Crustaceans were recorded. Oligochaetes were dominated and constituted 46% and 49% ofthe total benthic population in Rajdhala heel and Padmai beel respectively. The next dominant group was the Chironomids, which constituted 31% and 30% of the total benthic population in Rajdhala beel and Padmai beel respectively. The highest number 1279 and 1437 individuals/m2 of benthic fauna was recorded in December from Rajdhla beel and Padmai bee! in respectively. The lowest number of benthic fauna 869 and 914 individuals/m2 were found during September and July from Rajdhala beel and Padmai beel respectively. Monthly variation of benthic fauna among two beels were found statistically significant (p<0.05). The numerical distributions of benthic fauna was found to be varied with depth ranges. However, the depth wise variation of total benthic fauna between two heels was not found statistically significant. Fish yield of Rajdhala beel (488 kg/ha/yr) was appreciably higher than the Padmai beel (250 kg/ha/yr).