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Magnetic and Celestial Orientation o...

Cresci, Alessandro .

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Magnetic and Celestial Orientation of Migrating European Glass Eels (Anguilla anguilla).

Record Type:	Electronic resources : Monograph/item
Title/Author:	Magnetic and Celestial Orientation of Migrating European Glass Eels (Anguilla anguilla)./
Author:	Cresci, Alessandro .
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2020,
Description:	141 p.
Notes:	Source: Dissertations Abstracts International, Volume: 81-11, Section: B.
Contained By:	Dissertations Abstracts International81-11B.
Subject:	Ecology. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27737567
ISBN:	9798644900602

Magnetic and Celestial Orientation of Migrating European Glass Eels (Anguilla anguilla).
Cresci, Alessandro .

Magnetic and Celestial Orientation of Migrating European Glass Eels (Anguilla anguilla). - Ann Arbor : ProQuest Dissertations & Theses, 2020 - 141 p.

Source: Dissertations Abstracts International, Volume: 81-11, Section: B.

Thesis (Ph.D.)--University of Miami, 2020.

This item must not be sold to any third party vendors.

The European eel (Anguilla anguilla) is a diadromous fish that spawns in the Sargasso Sea. As leptocephalus larvae, eels cross the Atlantic Ocean and reach the continental slope of Europe, where they metamorphose into post-larval glass eels. These reach the coast and facultatively enter freshwater. After 5-25 years or longer, as adult silver eels, they will migrate back from freshwater to the Sargasso Sea to spawn and die. At the glass eel stage, eels cross the continental shelf and recruit to estuaries, where they transition to a freshwater physiology. Extensive research has been conducted to understand the environmental cues, and behavioral responses, that guide glass eels during this migration. Previous work described the migratory behavior of glass eels with respect to chemical cues, tides, temperature and light intensity. However, little is known about whether glass eels rely on fixed frames of reference to find their way during migration, such as the geomagnetic field and celestial cues. This dissertation fills this gap by describing the orientation of glass eels using a combination of in situ observations and laboratory experiments. In this work, I report novel evidence that both magnetic and lunar-related orientation occurs in European glass eels. These new findings are integrated with the existing body of literature on the behavior of glass eels and a comprehensive and unifying hypothesis on their migration is proposed.

ISBN: 9798644900602Subjects--Topical Terms:

516476
Ecology.
Subjects--Index Terms:

Animal migrations

Magnetic and Celestial Orientation of Migrating European Glass Eels (Anguilla anguilla).
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245 1 0 $a Magnetic and Celestial Orientation of Migrating European Glass Eels (Anguilla anguilla).
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2020
300 $a 141 p.
500 $a Source: Dissertations Abstracts International, Volume: 81-11, Section: B.
500 $a Advisor: Olascoaga, Josefina.
502 $a Thesis (Ph.D.)--University of Miami, 2020.
506 $a This item must not be sold to any third party vendors.
520 $a The European eel (Anguilla anguilla) is a diadromous fish that spawns in the Sargasso Sea. As leptocephalus larvae, eels cross the Atlantic Ocean and reach the continental slope of Europe, where they metamorphose into post-larval glass eels. These reach the coast and facultatively enter freshwater. After 5-25 years or longer, as adult silver eels, they will migrate back from freshwater to the Sargasso Sea to spawn and die. At the glass eel stage, eels cross the continental shelf and recruit to estuaries, where they transition to a freshwater physiology. Extensive research has been conducted to understand the environmental cues, and behavioral responses, that guide glass eels during this migration. Previous work described the migratory behavior of glass eels with respect to chemical cues, tides, temperature and light intensity. However, little is known about whether glass eels rely on fixed frames of reference to find their way during migration, such as the geomagnetic field and celestial cues. This dissertation fills this gap by describing the orientation of glass eels using a combination of in situ observations and laboratory experiments. In this work, I report novel evidence that both magnetic and lunar-related orientation occurs in European glass eels. These new findings are integrated with the existing body of literature on the behavior of glass eels and a comprehensive and unifying hypothesis on their migration is proposed.
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650 4 $a Ecology. $3 516476
650 4 $a Behavioral sciences. $3 529833
650 4 $a Animal sciences. $3 3174829
653 $a Animal migrations
653 $a Eel
653 $a European eel
653 $a Fish behavior
653 $a Lunar cycle
653 $a Magnetic orientation
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710 2 $a University of Miami. $b Applied Marine Physics (Marine). $3 3175828
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793 $a English
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