Symbiont

			Intelligent Lifeform Index

Symbiont
Four Letter Code	SYMB
Federation Status	Member
Planet of Origin	Trill
Encountered	In 2367 the existence of the Symbionts became common knowledge
T/E Rating	T0/E0
Current Tech Level	N+
List of Named Symbionts
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Symbiont

Home System

• Quadrant: Alpha
• Location: Kalandra Sector (coordinates A24-0002-1300)
• Proper Name: Trillius system
• Star: It orbits a class M (Red) star
• Distance from Star: its orbit is approximately 126 million km
• Companions: It is the 1st of 5 planets in the system

Home World

• Proper Name: Trill (also called Trillius Prime)
• Diameter: 12,258 km (7,617 miles)
• Gravity: 0.91 standard gravity with a density of 5.8
• Axial Tilt: 12.8%, with normal terran seasonal changes
• Orbital Period: 397 days
• Rotational Period: 25.3 hours
• Classification: M
  • Surface Water: 62%
  • Atmosphere: 0.99% is a standard pressure with 76% nitrogen, 22% oxygen, 2% trace chemicals
  • Climate: Mainly a temperate planet with a tropical and arctic zones.
  • Population: There were 650 million Trill and 11 million Symbiont living on this world in 2370.

History

The existence of the symbionts was for centuries a closely guarded secret and well into the 24th century the relationships between Trill humanoids and symbionts was a source of much political and social upheaval on the planet Trill and beyond.

Overview

When a symbiont was not inside a host body, they made use of electrochemical signals to communicate with others through the liquid they lived in. A joined symbiont was also capable of communicating with its non-joined counterparts by being submerged in the fluid breeding pools on the Trill homeworld. This provided a direct form of communication between the two but not on the same level of sharing knowledge as that which a Joining was capable of providing.

While typically symbionts only communicated with and took Trill as hosts, it was possible for them to communicate with Humans at least through extended contact. This was done through matching the symbiont's bioelectric patterns with those of the other individual. However, this required direct tissue contact between the nerves of the person with those of the symbiont.

As symbionts grew older, they eventually became unable to take hosts and would sink to the bottom of the pools where they would become caretakers for the Annuated, eventually these symbionts would grow to become Annuated themselves over a period of 20,000 years or more.

Mirror Universe

In the Mirror Universe, the Trill Symbionts were infected with a hostile parasitic intelligence. Emperor Spock ordered all the symbionts, save for Dax, exterminated in order to stop them becoming a threat to the Empire. This has left Curzon Dax as the only joined Trill. In 2379, Curzon passed away, and the symbiont was joined with Ezri Dax.

Description

Trill Symbionts, also known as swimmers, are small animals, a kind of sentient vermiform lifeform which can live either within Trill humanoid hosts or Symbiont pools on Trill. The symbionts distinguish humanoid Trill as walkers.

It was transferred from one humanoid Trill host to another upon the death of the host. Humans could also be used as a host to a Symbiont, however the Symbiont could not remain in their bodies for long without physically harming the Human host. The Symbiont took with it all memories of the previous Trill hosts. Upon joining, the new Trill host gained these memories. A host of a trill symbiont gains access to the memories of the symbiont and therefore those of all the previous hosts.

The Symbionts lived in the Caves of Mak'ala on Trill and were cared for by the Guardians. They communicated with each other via electrical impulses transmitted through the milky water they inhabited.

The Symbiosis Commission oversaw the joining of Trill and Symbionts. The general belief in the 24th century was that one in every 1,000 Trill was suitable for joining; however, the number was nearer to 50% of the population. This was a closely guarded secret because every year about 5,000 Trill became initiates while only about 500 symbionts became available.

Rites and ceremonies

• Rite of Emergence
• Zhian'tara

Important Symbionts

• Odan symbiont
• Dax symbiont
• Peers symbiont
• Kahn symbiont

SDC

This file was updated and approved by the SDC on 25 April 2013

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come partially, or entirely from
 Memory Alpha

		SPECIES PROFILE UPDATED This profile was revised by the Species Development Committee.		REV 239107.25
		Please add any new information discovered during the course of a mission or shore leave.
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