Change search
ReferencesLink to record
Permanent link

Direct link
Pilot study: Is it possible to get Clown loach, Chromobotia macracanthus, ready to spawn in aquariums?
Halmstad University, School of Business, Engineering and Science.
2016 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The clown loach Chromobotia macracanthus, is a well known species in ornamental fish circuits although the knowledge about it in its wild environment today is limited. The outtake of 50 million juveniles every year may drive the population into a collapse and it might be necessary to breed clown loaches in captivity to lower the pressure in wild stocks. This has not yet been accomplished without hormone treatment. The aim of the present study is to find out if it is possible for C. macracanthus to prepare for spawning in captivity without the use of hormones. The study was set up according to documentation about the wild conditions simulating the migration prior to spawning from greater rivers and swamps to smaller streams upriver. Although the experiment did not result in spawning it is believed that egg production took place according to criteria for identifying sexually mature fish ready to spawn. If so it would have resulted in the fish retaining or reabsorbing the eggs since they were not laid. A surprising result which tells us it would not be unusual with egg production in C. macracanthus in aquariums around the world.

Place, publisher, year, edition, pages
2016. , 14 p.
Keyword [sv]
Biology, ecology, environment, indonesia, clown loach, chromobotia macracanthus, fish, spawning, migration, aquarium, ornamental fish, over-exploitation, flagship species, retaining, reabsorbing, resting
National Category
Natural Sciences
URN: urn:nbn:se:hh:diva-30604OAI: diva2:916235
Subject / course
Available from: 2016-04-01 Created: 2016-03-31 Last updated: 2016-04-01Bibliographically approved

Open Access in DiVA

fulltext(187 kB)27 downloads
File information
File name FULLTEXT01.pdfFile size 187 kBChecksum SHA-512
Type fulltextMimetype application/pdf

By organisation
School of Business, Engineering and Science
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 27 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 15 hits
ReferencesLink to record
Permanent link

Direct link