Cyclomorphism in Bosmina longirostris (Crustacea:Cladocera) from Lake Ikeda, Japan

Zooplankton were sampled in Lake Ikeda at a fixed station every month with the aid of a plankton net in order to observe whether cyclomorphism was exhibited by the neonates of Bosmina longirostris. In Lake Ikeda the relative sizes of the antennules and mucrones of B. longrostris neonates decreased i...

Full description

Bibliographic Details
Main Authors: Shaharudin Abdul Razak, Toshio Saisho
Format: Article
Language:English
Published: Universiti Kebangsaan Malaysia 2011
Online Access:http://journalarticle.ukm.my/2497/
http://journalarticle.ukm.my/2497/
http://journalarticle.ukm.my/2497/1/02_Shaharudin.pdf
id ukm-2497
recordtype eprints
spelling ukm-24972016-12-14T06:31:48Z http://journalarticle.ukm.my/2497/ Cyclomorphism in Bosmina longirostris (Crustacea:Cladocera) from Lake Ikeda, Japan Shaharudin Abdul Razak, Toshio Saisho, Zooplankton were sampled in Lake Ikeda at a fixed station every month with the aid of a plankton net in order to observe whether cyclomorphism was exhibited by the neonates of Bosmina longirostris. In Lake Ikeda the relative sizes of the antennules and mucrones of B. longrostris neonates decreased in relation to carapace length from 65% in winter to 50% in summer. Mucrone lengths also decreased from 30% in winter to 20% in summer. Both appendages were inversely correlated with surface temperature of the lake. Predation seems to be one of the reasons why neonates of B. longirostris exhibited seasonal cyclomorphism in their antennule and mucrone Universiti Kebangsaan Malaysia 2011-06 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/2497/1/02_Shaharudin.pdf Shaharudin Abdul Razak, and Toshio Saisho, (2011) Cyclomorphism in Bosmina longirostris (Crustacea:Cladocera) from Lake Ikeda, Japan. Sains Malaysiana, 40 (6). pp. 543-547. ISSN 0126-6039 http://www.ukm.my/jsm/
repository_type Digital Repository
institution_category Local University
institution Universiti Kebangasaan Malaysia
building UKM Institutional Repository
collection Online Access
language English
description Zooplankton were sampled in Lake Ikeda at a fixed station every month with the aid of a plankton net in order to observe whether cyclomorphism was exhibited by the neonates of Bosmina longirostris. In Lake Ikeda the relative sizes of the antennules and mucrones of B. longrostris neonates decreased in relation to carapace length from 65% in winter to 50% in summer. Mucrone lengths also decreased from 30% in winter to 20% in summer. Both appendages were inversely correlated with surface temperature of the lake. Predation seems to be one of the reasons why neonates of B. longirostris exhibited seasonal cyclomorphism in their antennule and mucrone
format Article
author Shaharudin Abdul Razak,
Toshio Saisho,
spellingShingle Shaharudin Abdul Razak,
Toshio Saisho,
Cyclomorphism in Bosmina longirostris (Crustacea:Cladocera) from Lake Ikeda, Japan
author_facet Shaharudin Abdul Razak,
Toshio Saisho,
author_sort Shaharudin Abdul Razak,
title Cyclomorphism in Bosmina longirostris (Crustacea:Cladocera) from Lake Ikeda, Japan
title_short Cyclomorphism in Bosmina longirostris (Crustacea:Cladocera) from Lake Ikeda, Japan
title_full Cyclomorphism in Bosmina longirostris (Crustacea:Cladocera) from Lake Ikeda, Japan
title_fullStr Cyclomorphism in Bosmina longirostris (Crustacea:Cladocera) from Lake Ikeda, Japan
title_full_unstemmed Cyclomorphism in Bosmina longirostris (Crustacea:Cladocera) from Lake Ikeda, Japan
title_sort cyclomorphism in bosmina longirostris (crustacea:cladocera) from lake ikeda, japan
publisher Universiti Kebangsaan Malaysia
publishDate 2011
url http://journalarticle.ukm.my/2497/
http://journalarticle.ukm.my/2497/
http://journalarticle.ukm.my/2497/1/02_Shaharudin.pdf
first_indexed 2023-09-18T19:36:15Z
last_indexed 2023-09-18T19:36:15Z
_version_ 1777405290476470272