**force of natural mortality** — instantaneous rate of natural mortality (when natural and fishing mortality operate concurrently it is equal to the instantaneous total mortality rate, multiplied by the ratio of natural deaths to all deaths (Ricker, 1975). Abbreviated as M) … Dictionary of ichthyology

**instantaneous rate of fishing mortality** — used to describe the decrease in numbers of fish over time when fishing and natural mortality act concurrently (Nt = No * e^ Zt , where No is the initial number and Nt is the number of the remaining fish at the end of time t. Z is the… … Dictionary of ichthyology

**instantaneous rate of fishing mortality** — When fishing and natural mortality act concurrently, F is equal to the instantaneous total mortality rate, multiplied by the ratio of fishing deaths to all deaths. Also called: rate of fishing; instantaneous rate of fishing; force of fishing… … Fisheries — dictionary

**instantaneous rate of fishing mortality** — When fishing and natural mortality act concurrently, F is equal to the instantaneous total mortality rate, multiplied by the ratio of fishing deaths to all deaths. Also called: rate of fishing; instantaneous rate of fishing; force of fishing… … Fisheries — dictionary

**instantaneous rate of natural mortality** — When natural and fishing mortality operate concurrently it is equal to the instantaneous total mortality rate, multiplied by the ratio of natural deaths to all deaths. Also called: force of natural mortality … Fisheries — dictionary

**instantaneous rate of natural mortality** — When natural and fishing mortality operate concurrently it is equal to the instantaneous total mortality rate, multiplied by the ratio of natural deaths to all deaths. Also called: force of natural mortality … Fisheries — dictionary

**instantaneous rate of natural mortality** — when natural and fishing mortality operate concurrently it is equal to the instantaneous total mortality rate, multiplied by the ratio of natural deaths to all deaths (Ricker, 1975). Abbreviated as M. Also called force of natural mortality … Dictionary of ichthyology

**Europe, history of** — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… … Universalium

**Five-Year plans of India** — The economy of India is based in part on planning through its five year plans, which are developed, executed and monitored by the Planning Commission. The tenth plan completed its term in March 2007 and the eleventh plan is currently underway.[1] … Wikipedia

**Nahuas of La Huasteca** — The Nahua of La Huasteca is an indigenous ethnic group of Mexico and one of the Nahua peoples. They live in the mountaiouns area called La Huasteca which is located in north eastern Mexico and contains parts of the states of Hidalgo, Veracruz and … Wikipedia