SCIENCE

Under : SCIENCE    Posted On :  07.08.2017 06:29 pm    Author :  Gene S. Helfman, Bruce B. Collette, Douglas E. Facey, Brian W. Bowen

Munro (1990b) has proposed a classification of the proximate cues that determine the occurrence of different portions of the reproductive cycle. He r....

Under : SCIENCE    Posted On :  07.08.2017 06:27 pm    Author :  Gene S. Helfman, Bruce B. Collette, Douglas E. Facey, Brian W. Bowen

The most notably seasonal activity in fishes and most other organisms is reproduction.....

Under : SCIENCE    Posted On :  07.08.2017 06:26 pm    Author :  Gene S. Helfman, Bruce B. Collette, Douglas E. Facey, Brian W. Bowen

The ectothermic nature of fishes makes them affected by and therefore highly responsive to seasonal fluctuations in temperature.....

Under : SCIENCE    Posted On :  07.08.2017 06:20 pm    Author :  Gene S. Helfman, Bruce B. Collette, Douglas E. Facey, Brian W. Bowen

One postulated function of cyclical behavior is the opportunity that it affords individuals to synchronize their behavior with that of conspecifics. N....

Under : SCIENCE    Posted On :  07.08.2017 06:20 pm    Author :  Gene S. Helfman, Bruce B. Collette, Douglas E. Facey, Brian W. Bowen

Tidal cycles are caused by the gravitational pull of the moon and to a lesser extent the sun on the oceanic water mass.....

Under : SCIENCE    Posted On :  07.08.2017 06:19 pm    Author :  Gene S. Helfman, Bruce B. Collette, Douglas E. Facey, Brian W. Bowen

A circadian rhythm is a pattern of activity governed by an internal clock with a period of roughly 24 h.....

Under : SCIENCE    Posted On :  07.08.2017 06:18 pm    Author :  Gene S. Helfman, Bruce B. Collette, Douglas E. Facey, Brian W. Bowen

An entirely different daily rhythm of migration that appears largely dependent on light levels is the vertical migration undertaken by numerous fish s....

Under : SCIENCE    Posted On :  07.08.2017 06:16 pm    Author :  Gene S. Helfman, Bruce B. Collette, Douglas E. Facey, Brian W. Bowen

The 24 h, diel, or daily periodicity of the earth’s rotation creates a predictable pattern of light and darkness that has a profound effect on the b....

Under : SCIENCE    Posted On :  07.08.2017 06:14 pm    Author :  Gene S. Helfman, Bruce B. Collette, Douglas E. Facey, Brian W. Bowen

Many fish aggregations contain members of more than one species, forming heterospecific shoals.....

Under : SCIENCE    Posted On :  07.08.2017 06:14 pm    Author :  Gene S. Helfman, Bruce B. Collette, Douglas E. Facey, Brian W. Bowen

Some of the best studied mutualistic interactions involve fishes that pick external parasites from other fishes.....

Under : SCIENCE    Posted On :  07.08.2017 06:13 pm    Author :  Gene S. Helfman, Bruce B. Collette, Douglas E. Facey, Brian W. Bowen

Symbiosis is the living together of two unrelated organisms. ....

Under : SCIENCE    Posted On :  07.08.2017 06:10 pm    Author :  Gene S. Helfman, Bruce B. Collette, Douglas E. Facey, Brian W. Bowen

Predatory success decreases as prey group size increases .....

Under : SCIENCE    Posted On :  07.08.2017 06:09 pm    Author :  Gene S. Helfman, Bruce B. Collette, Douglas E. Facey, Brian W. Bowen

The most obvious form of social behavior in fishes is the formation of groups, either unorganized shoals or organized, polarized schools.....

Under : SCIENCE    Posted On :  07.08.2017 06:08 pm    Author :  Gene S. Helfman, Bruce B. Collette, Douglas E. Facey, Brian W. Bowen

Territories are usually a spatial subset of the larger area that a fish uses in its daily activities.....

Under : SCIENCE    Posted On :  07.08.2017 06:07 pm    Author :  Gene S. Helfman, Bruce B. Collette, Douglas E. Facey, Brian W. Bowen

Territoriality implies a defended space, either the personal space around an individual (=individual distance) or a bounded area around some resource.....

Under : SCIENCE    Posted On :  07.08.2017 06:07 pm    Author :  Gene S. Helfman, Bruce B. Collette, Douglas E. Facey, Brian W. Bowen

Dominance hierarchies (“peck orders”) are either linear or despotic.....

Under : SCIENCE    Posted On :  07.08.2017 06:06 pm    Author :  Gene S. Helfman, Bruce B. Collette, Douglas E. Facey, Brian W. Bowen

Aggressive interactions usually result from competition or potential competition for valuable resources.....

Under : SCIENCE    Posted On :  07.08.2017 06:05 pm    Author :  Gene S. Helfman, Bruce B. Collette, Douglas E. Facey, Brian W. Bowen

Fishes are unique in that some species both produce and receive electrical information based on very weak electrical output (see Electrical communica....