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Air Breathing Fish: Development of A...

Crowder, Lauren Whitney.

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Air Breathing Fish: Development of Air Breathing in Bristlenose Plecos (Ancistrus cirrhosus).

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Air Breathing Fish: Development of Air Breathing in Bristlenose Plecos (Ancistrus cirrhosus)./
作者:	Crowder, Lauren Whitney.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2023,
面頁冊數:	30 p.
附註:	Source: Masters Abstracts International, Volume: 85-03.
Contained By:	Masters Abstracts International85-03.
標題:	Biology. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30753121
ISBN:	9798380390217

Air Breathing Fish: Development of Air Breathing in Bristlenose Plecos (Ancistrus cirrhosus).
Crowder, Lauren Whitney.

Air Breathing Fish: Development of Air Breathing in Bristlenose Plecos (Ancistrus cirrhosus). - Ann Arbor : ProQuest Dissertations & Theses, 2023 - 30 p.

Source: Masters Abstracts International, Volume: 85-03.

Thesis (M.S.)--University of North Texas, 2023.

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

The bristlenose pleco (Ancistrus cirrhosus) is a species of armored catfish in the Loricariidae family that breathes air facultatively when the aquatic environment becomes hypoxic. The bristlenose pleco uses its highly vascularized stomach as an air breathing organ. The two main goals of this developmental study were to determine the size of onset of air breathing and to determine the frequency of air breathing behavior in bristlenose plecos from juveniles to adults. Developing juveniles reach functional maturity within four to six months of hatching and grow to an adult size of eight to ten cm in length. To examine the developmental timing for the onset of air breathing, we tested different sized juveniles beginning at one cm up until 8 cm in length. The developmental timing for the onset of air breathing was measured by exposing each fish to a slowly decreasing aquatic oxygen content from 100% air saturation down to 8% air saturation. Fish were first able to breathe air at just over 2 cm and 1 gram in mass. There was a weak negative correlation between fish length and % air saturation at which air breathing began. When exposed to 15% air saturation, frequency of air breathing was negatively correlated with fish length. Armored catfish are becoming an invasive species in the southern US, outcompeting local fauna potentially because of this adaptation. This research provides important insight into the development of the air breathing adaptation that may allow these fish to outcompete the others.

ISBN: 9798380390217Subjects--Topical Terms:

522710
Biology.
Subjects--Index Terms:

Loricariidae

Air Breathing Fish: Development of Air Breathing in Bristlenose Plecos (Ancistrus cirrhosus).
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500 $a Source: Masters Abstracts International, Volume: 85-03.
500 $a Advisor: Dzialowski, Edward.
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506 $a This item must not be sold to any third party vendors.
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520 $a The bristlenose pleco (Ancistrus cirrhosus) is a species of armored catfish in the Loricariidae family that breathes air facultatively when the aquatic environment becomes hypoxic. The bristlenose pleco uses its highly vascularized stomach as an air breathing organ. The two main goals of this developmental study were to determine the size of onset of air breathing and to determine the frequency of air breathing behavior in bristlenose plecos from juveniles to adults. Developing juveniles reach functional maturity within four to six months of hatching and grow to an adult size of eight to ten cm in length. To examine the developmental timing for the onset of air breathing, we tested different sized juveniles beginning at one cm up until 8 cm in length. The developmental timing for the onset of air breathing was measured by exposing each fish to a slowly decreasing aquatic oxygen content from 100% air saturation down to 8% air saturation. Fish were first able to breathe air at just over 2 cm and 1 gram in mass. There was a weak negative correlation between fish length and % air saturation at which air breathing began. When exposed to 15% air saturation, frequency of air breathing was negatively correlated with fish length. Armored catfish are becoming an invasive species in the southern US, outcompeting local fauna potentially because of this adaptation. This research provides important insight into the development of the air breathing adaptation that may allow these fish to outcompete the others.
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653 $a Hypoxia
653 $a Developmental timing
653 $a Armored catfish
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793 $a English
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