ANS18-10-L08-EEL-CULT

ANS18-10-L08-EEL-CULT - EEL CULTURE Eel Life Cycle 1....

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
EEL CULTURE
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Eel Life Cycle 1. Leptocephalus ~ 0.2” (glass eels ~ 1 – 2”) 2. Elver 3. Adult
Background image of page 2
A. japonicus– growth optimum = 25 – 28 o C o C
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Elver fishery - As the leptocephalus larvae sense freshwater, they undergo a metamorphosis to the classical eel shape but remain transparent. These late larvae are called "glass eels" (~ 2” in length). As they begin to move into the mouths of rivers and bays in East Asia, the eastern coast of North America as well as the coastal regions of both Northern and Southern Europe, the glass eels become darkly pigmented and are referred to as “elvers”.
Background image of page 4
Part of this elver harvest is exported to Japan as well as China and Taiwan, two other significant producers of cultured eels in Asia. –price varies dramatically from year to year depending on natural supply. –recent years, the price of a single glass eel has risen from as little as 3 cents to as much as 60 cents. –cost of glass eels can account for 40% of
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 12

ANS18-10-L08-EEL-CULT - EEL CULTURE Eel Life Cycle 1....

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online