Showing items related by title, author, creator and subject.

• 

  Relation of salinity to precipitation as well as air temperature to water temperature in the Hirosima Bay.

  Kubo, Kazuaki; Nisida, Hirosi; Shirane, Hiromiti (1999)

  Report of Hydrographic and Oceanographic Researches
• 

  Tracking Pacific bluefin tuna (Thunnus thynnus orientalis) in the northeastern Pacific with an automated algorithm that estimates latitude by matching sea-surface-temperature data from satellites with temperature data from tags on fish

  Domeier, Michael L; Kiefer, Dale; Nasby-Lucas, Nicole; Wagschal, Adam; O’Brien, Frank (2005)

  Fishery Bulletin

  Data recovered from 11 popup satellite archival tags and 3surgically implanted archival tags were used to analyze the movement patterns of juvenile northern bluefin tuna (Thunnus thynnus orientalis) in the eastern Pacific. The light sensors on archival and pop-up satellite transmittingarchival tags (PSATs) provide data on the time of sunriseand sunset, allowing the calculation of an approximate geographic position of the animal. Light-based estimatesof longitude are relatively robust but latitude estimates are prone to large degrees of error, particularly near the times of the equinoxes and when the tag is at low latitudes. Estimating latitude remains a problem forresearchers using light-based geolocation algorithms and it has been suggested that sea surface temperature data from satellites may be a useful tool for refining latitude estimates. Tag data from bluefin tuna were subjected to a newly developed algorithm, called “PSAT Tracker,” which automatically matches sea surface temperature data from the tags with sea surface temperatures recorded by satellites.The results of this algorithm compared favorably to the estimates of latitude calculated with the lightbasedalgorithms and allowed for estimation of fish positions during times of the year when the lightbased algorithms failed. Three near one-year tracks produced by PSAT tracker showed that the fish range from the California−Oregon borderto southern Baja California, Mexico, and that the majority of time is spent off the coast of central Baja Mexico. A seasonal movement pattern was evident; the fish spend winter and spring off central Baja California, and summer through fall is spent moving northward to Oregon and returning to Baja California.
• 

  Studies on the growth temperature ranges of bacteria isolated from fresh sardine at different primary incubation temperature

  Thampuran, N.; Mahadeva Iyer, K. (1979)

  Fishery Technology

  The effect of primary incubation temperature on the growth temperature range was studied with reference to 296 bacterial cultures isolated from sardine using streak plate technique. The primary incubation temperature used during bacteriological sampling caused a selection of strains according to their growth temperature requirements. Incubation at 8°C caused greater recoveries of psychrotrophs while 30°C favored mesophiles. An incubation temperature of 30°C facilitated the growth of both psychrotrophs and mesophiles.