(6) The effects of harvesting on population growth may not be fully manifest in one year.
However, we based the timing of harvesting on the 50% maturation status of the random fish; thus, one should have expected a lower PMRN intercept compared to the large-selected fish as indicative of earlier maturation.
For several years, the agency has also been restocking nearby Legend and Upper Bass Lakes, hoping to create a large enough population to permit harvesting on the reservation.
After getting the go-ahead, quarantined growers, pressed to move the last of the year's oranges and grapefruits to market, cautiously resumed harvesting on Feb. 1.
The third segment shows "heavenly" Switzerland: men in suits rushing to work, logos of Switzerland's multinational corporations, harvesting on farms, experiments in laboratories, scenes of lakes, mountains, churches and goats.
In 1994, Congress ordered the Interior Department to clean up the system, established in 1887 to manage royalties from mining, cattle grazing, oil drilling and timber harvesting on Indian land.
Assume we have constant harvesting on (1.1) with periodically fluctuating carrying capacities, that is, (2.1).
Ernande et al. investigated the effect of harvesting on age and size at maturation.
We investigate the effect of constant and periodic harvesting on the Beverton-Holt model in a periodically fluctuating environment.
Impacts of timber harvesting on water quality attributes were greatest when clear-cut harvesting up to the stream edge.
The effect of periodic harvesting on the discrete Ricker model and for a host-parasite model was studied in [15].
