Four populations of the lesion nematode Pratylenchus brachyurus were tested in a greenhouse on seven selected plant species to determine host suitability and usefulness in identifying physiological races of the nematode. The differential plants were 'Florida 77' alfalfa, 'Harvester' snap bean, 'Rough Lemon' citrus, 'Pioneer 304C' corn, 'Florunner' peanut, 'Braxton' soybean, and 'Rutgers' tomato...

Analyses of animal social networks have frequently benefited from techniques derived from other disciplines. Recently, machine learning algorithms have been adopted to infer social associations from time-series data gathered using remote, telemetry systems situated at provisioning sites. We adapt and modify existing inference methods to reveal the underlying social structure of wide-ranging mar...

E-mail address (for F. Hazin): [email protected] depths between 5 and 10 m. Bottom longlines consisted of a multifilament mainline (6 mm in diameter) with up to 100 secondary lines, each approx. 5 m in length and constructed from 3-mm diameter monofilament attached to a wire snood (1 m in length). Types of hooks varied among brands, but rela­ tive sizes (i.e. 9/0) remained similar.The mai...

Serum hormone levels were compared between captive and free-living maned wolves and seasonal variations of sex hormones were studied. Blood samples were collected from 16 male and 26 female adult animals from Brazilian zoos, and from 30 male and 24 female free-living adults to determine serum progesterone and testosterone by radioimmunoassay. Serum testosterone concentrations varied (P < 0.05) ...

History.?On the night of February 29th at 9 p.m., Muthiah, aged 22, Tamil, whilst running along a pathway through rubber trees put his foot on a snake, which bit him. He immediately kicked it away, whilst his friends who were behind him kil]ed it. Within a few minutes, he felt a burning sensation which appeared to travel up the leg. A string was tied around the ankle and he was taken to hospita...

Three populations of Pratylenchus coffeae and two of P. brachyurus, each originating from a single female, were maintained on Citrus spp. or Solanum nigrum L. for several years under greenhouse conditions. Nematodes were extracted from roots, and adult female specimens were killed, fixed, and mounted in glycerine for microscopic study. Variables measured were distance between vulva and anus and...

*Fish Museum, Zoology Department, University of British Columbia, 6270 University Boulevard,Vancouver, BC,V6T 1Z4, Canada. ReefQuest Centre for Shark Research, PO Box 48561, 595 Burrard Street,Vancouver, BC,V7X1A3, Canada. Pew Institute for Ocean Science, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL 33149, USA. Shark Research Committee, PO Box 3483,Van Nuy...

The infection status of Clonorchis sinensis metacercariae (CsMc) was examined in freshwater fish from a highly prevalent site, Wicheon (a branch of Nakdong-gang), which is located in Gunwi-gun, Gyeongsangbuk-do, the Republic of Korea. Total 1,162 fish in 32 species were examined by the artificial digestion method through 6 years. CsMc were detected in 720 (67.5%) out of 1,067 fish (26 spp.) and...

Sharks are often found in all the waters scattered various regions of world. On other hand, shark fisheries have declined globally due to fishing as well demand is very high. The length-frequency distribution for Carcharhinus sorrah distributed between 33-131 cm falciformis 51-161 cm. length-weight relationship allometric negative, while on positive. maturity level august Full Classification (F...

To estimate tag retention time, 39 acoustic transmitters were hand-fed to bull sharks Carcharhinus leucas, lemon sharks Negaprion acutidens and tiger sharks Galeocerdo cuvier, in the Shark Reef Marine Reserve, Fiji. Minimum tag retention times ranged from less than 24 h to 34 days, and bull sharks could be tracked for a minimum mean duration of 6.8 days. Feeding acoustic transmitters wrapped in...