science top stories popular news  

Daily non-political popular news in brief.

The fisherman is a predator like any other

06-05-2007 · EurekAlert!

IRD scientists and their partners of the Peruvian Institute of the Sea have analyzed these data obtained from commercial fishing vessels using mathematical trajectory models in order to elucidate the spatial interactions between fishermen and fish. Spatially, the fishermen behave just like natural predators. Fishermen are indeed part of this ecosystem, obeying laws of behaviour common to other top predators. These findings emphasize the importance of establishing an ecosystem-based concept of fisheries management.

Read more »

Keywords: fisherman, predator

« Previous | Next »

Similar news on "The fisherman is a predator like any other":

  1. The fisherman is a predator like any other
    06-30-2007 · EurekAlert!
    IRD scientists and their partners ofthe Peruvian Institute of theSea have analyzed the Peruvian fisheries data using mathematical trajectorymodels in order to elucidatethe spatial interactionsbetween fishermen and fish.The results obtained indicatethat, spatially, the fishermenbehave just like natural predators.Fishermen areindeed part of theecosystem, obeying laws ofbehavior common to othertop predators. These findingsemphasize the importance ofestablishing an ecosystem-basedconcept of fisheriesmanagement.
    Similar news · Read more »
  2. Scientists say sabercat bit like a pussycat
    10-01-2007 · EurekAlert!
    The fearsome sabercat might have been a formidable predator but innovative computer modelling shows it had a wimpy bite.
    Similar news · Read more »
  3. Condition of bluefin tuna in gulf of maine is declining
    08-23-2007 · EurekAlert!
    The quality of giant bluefin tuna caught in the Gulf of Maine has declined significantly since the early 1990s, researchers at the University of New Hampshire have found by analyzing detailed logbooks from a commercial tuna grader at the Yankee Fisherman's Co-op. The findings, published this week in Fishery Bulletin, indicate potential changes in food sources, shifts in reproductive or migratory patterns, or the impact of fishing may be the cause of this decline.
    Similar news · Read more »
  4. Predator pressures maintain bees' social life
    12-20-2007 · EurekAlert!
    The complex organization of some insect societies is thought to have developed to such a level that these animals can no longer survive on their own. Research published in the online open access journal BMC Evolutionary Biology suggests that rather than organizational, genetic, or biological complexity defining a 'point of no return' for social living, pressures of predation create advantages to not living alone.
    Similar news · Read more »
  5. Pressured by predators, lizards see rapid shift in natural selection
    11-16-2006 · EurekAlert!
    Countering the widespread view of evolution as a process played out over the course of eons, evolutionary biologists have shown that natural selection can turn on a dime -- within months -- as a population's needs change. In a study of island lizards exposed to a new predator, the scientists found that natural selection dramatically changed direction over a very short time, within a single generation, favoring first longer and then shorter hind legs.
    Similar news · Read more »
  6. Predicting the perfect predator
    02-13-2008 · EurekAlert!
    Garlic mustard has become an invasive species in temperate forests across the United States, choking out native plants on forest floors and threatening ecosystem diversity. University of Illinois ecologist Adam Davis has created a computer model that in combination with quarantined research tests he believes will be able to predict the perfect predator -- a pest that can be introduced into a forested area that will help reduce the garlic mustard population.
    Similar news · Read more »
  7. Ancient predator had strongest bite of any fish, rivaling bite of large alligators and T. rex
    11-28-2006 · EurekAlert!
    Dunkleosteus terrelli may have been the world's first apex predator. The force of its bite was remarkably powerful: 11,000 pounds. The bladed dentition of this 400-million-year-old extinct fish focused the bite force into a small area, the fang tip, at an incredible force of 80,000 pounds per square inch. This is the strongest bite force of any fish ever, and rivals the bite of large alligators and T. rex.
    Similar news · Read more »
  8. The Predator's Gaze
    12-09-2006 · Science News Online
    A new wave of research is trying to untangle the origins and nature of psychopathy, a personality style characterized by a lack of conscience, empathy, or guilt that attracts intense interest from the legal system.
    Similar news · Read more »
  9. Leggy lizards adapt fast
    12-09-2006 · Science News Online
    In response tto a new predator, lizards on several Caribbean islands underwent selection first for long legs and then for short legs.
    Similar news · Read more »
  10. To elude bats, a moth keeps its hearing in tune
    12-18-2006 · EurekAlert!
    It has been known for over 50 years that moths can hear the ultrasonic hunting calls of their nocturnal predator, the bat. Moth ears are among the simplest in the insect world -- they have only two or four vibration-sensitive neurons attached to a small eardrum. Previously, it was thought that these ears were only partially sensitive to the sound frequencies commonly used by bats, and it would seem likely that by using high ultrasound, bats would make their hunting calls inaudible to moths.
    Similar news · Read more »