The dynamics of reproductive rate, offspring survivorship and growth in the lined seahorse, Hippocampus erectus Perry, 1810
Summary Seahorses are the vertebrate group with the embryonic development occurring within a special pouch in males. To understand the reproductive efficiency of the lined seahorse, Hippocampus erectus Perry, 1810 under controlled breeding experiments, we investigated the dynamics of reproductive ra...
Main Authors: | , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
The Company of Biologists
2012-02-01
|
Series: | Biology Open |
Subjects: | |
Online Access: | http://bio.biologists.org/content/1/4/391 |
id |
doaj-5071fec012664ba0a28c3310dbaef3c9 |
---|---|
record_format |
Article |
spelling |
doaj-5071fec012664ba0a28c3310dbaef3c92021-06-02T10:52:32ZengThe Company of BiologistsBiology Open2046-63902012-02-011439139610.1242/bio.20123982012398The dynamics of reproductive rate, offspring survivorship and growth in the lined seahorse, Hippocampus erectus Perry, 1810Qiang Lin0Gang Li1Geng Qin2Junda Lin3Liangmin Huang4Hushan Sun5Peiyong Feng6 Key Laboratory of Marine Bio-resource Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, P. R. China Key Laboratory of Marine Bio-resource Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, P. R. China Key Laboratory of Marine Bio-resource Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, P. R. China Vero Beach Marine Laboratory, Florida Institute of Technology, Vero Beach, FL 32963, USA Key Laboratory of Marine Bio-resource Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, P. R. China Key Laboratory of Biotechnology, School of Life Sciences, Ludong University, Yantai 264025, P. R. China Key Laboratory of Biotechnology, School of Life Sciences, Ludong University, Yantai 264025, P. R. China Summary Seahorses are the vertebrate group with the embryonic development occurring within a special pouch in males. To understand the reproductive efficiency of the lined seahorse, Hippocampus erectus Perry, 1810 under controlled breeding experiments, we investigated the dynamics of reproductive rate, offspring survivorship and growth over births by the same male seahorses. The mean brood size of the 1-year old pairs in the 1st birth was 85.4±56.9 per brood, which was significantly smaller than that in the 6th birth (465.9±136.4 per brood) (P<0.001). The offspring survivorship and growth rate increased with the births. The fecundity was positively correlated with the length of brood pouches of males and trunk of females. The fecundity of 1-year old male and 2-year old female pairs was significantly higher than that from 1-year old couples (P<0.001). The brood size (552.7±150.4) of the males who mated with females that were isolated for the gamete-preparation, was larger than those (467.8±141.2) from the long-term pairs (P<0.05). Moreover, the offspring from the isolated females had higher survival and growth rates. Our results showed that the potential reproductive rate of seahorses H. erectus increased with the brood pouch development.http://bio.biologists.org/content/1/4/391FecundityReproductive efficiencySeahorsesHippocampus erectus |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Qiang Lin Gang Li Geng Qin Junda Lin Liangmin Huang Hushan Sun Peiyong Feng |
spellingShingle |
Qiang Lin Gang Li Geng Qin Junda Lin Liangmin Huang Hushan Sun Peiyong Feng The dynamics of reproductive rate, offspring survivorship and growth in the lined seahorse, Hippocampus erectus Perry, 1810 Biology Open Fecundity Reproductive efficiency Seahorses Hippocampus erectus |
author_facet |
Qiang Lin Gang Li Geng Qin Junda Lin Liangmin Huang Hushan Sun Peiyong Feng |
author_sort |
Qiang Lin |
title |
The dynamics of reproductive rate, offspring survivorship and growth in the lined seahorse, Hippocampus erectus Perry, 1810 |
title_short |
The dynamics of reproductive rate, offspring survivorship and growth in the lined seahorse, Hippocampus erectus Perry, 1810 |
title_full |
The dynamics of reproductive rate, offspring survivorship and growth in the lined seahorse, Hippocampus erectus Perry, 1810 |
title_fullStr |
The dynamics of reproductive rate, offspring survivorship and growth in the lined seahorse, Hippocampus erectus Perry, 1810 |
title_full_unstemmed |
The dynamics of reproductive rate, offspring survivorship and growth in the lined seahorse, Hippocampus erectus Perry, 1810 |
title_sort |
dynamics of reproductive rate, offspring survivorship and growth in the lined seahorse, hippocampus erectus perry, 1810 |
publisher |
The Company of Biologists |
series |
Biology Open |
issn |
2046-6390 |
publishDate |
2012-02-01 |
description |
Summary
Seahorses are the vertebrate group with the embryonic development occurring within a special pouch in males. To understand the reproductive efficiency of the lined seahorse, Hippocampus erectus Perry, 1810 under controlled breeding experiments, we investigated the dynamics of reproductive rate, offspring survivorship and growth over births by the same male seahorses. The mean brood size of the 1-year old pairs in the 1st birth was 85.4±56.9 per brood, which was significantly smaller than that in the 6th birth (465.9±136.4 per brood) (P<0.001). The offspring survivorship and growth rate increased with the births. The fecundity was positively correlated with the length of brood pouches of males and trunk of females. The fecundity of 1-year old male and 2-year old female pairs was significantly higher than that from 1-year old couples (P<0.001). The brood size (552.7±150.4) of the males who mated with females that were isolated for the gamete-preparation, was larger than those (467.8±141.2) from the long-term pairs (P<0.05). Moreover, the offspring from the isolated females had higher survival and growth rates. Our results showed that the potential reproductive rate of seahorses H. erectus increased with the brood pouch development. |
topic |
Fecundity Reproductive efficiency Seahorses Hippocampus erectus |
url |
http://bio.biologists.org/content/1/4/391 |
work_keys_str_mv |
AT qianglin thedynamicsofreproductiverateoffspringsurvivorshipandgrowthinthelinedseahorsehippocampuserectusperry1810 AT gangli thedynamicsofreproductiverateoffspringsurvivorshipandgrowthinthelinedseahorsehippocampuserectusperry1810 AT gengqin thedynamicsofreproductiverateoffspringsurvivorshipandgrowthinthelinedseahorsehippocampuserectusperry1810 AT jundalin thedynamicsofreproductiverateoffspringsurvivorshipandgrowthinthelinedseahorsehippocampuserectusperry1810 AT liangminhuang thedynamicsofreproductiverateoffspringsurvivorshipandgrowthinthelinedseahorsehippocampuserectusperry1810 AT hushansun thedynamicsofreproductiverateoffspringsurvivorshipandgrowthinthelinedseahorsehippocampuserectusperry1810 AT peiyongfeng thedynamicsofreproductiverateoffspringsurvivorshipandgrowthinthelinedseahorsehippocampuserectusperry1810 AT qianglin dynamicsofreproductiverateoffspringsurvivorshipandgrowthinthelinedseahorsehippocampuserectusperry1810 AT gangli dynamicsofreproductiverateoffspringsurvivorshipandgrowthinthelinedseahorsehippocampuserectusperry1810 AT gengqin dynamicsofreproductiverateoffspringsurvivorshipandgrowthinthelinedseahorsehippocampuserectusperry1810 AT jundalin dynamicsofreproductiverateoffspringsurvivorshipandgrowthinthelinedseahorsehippocampuserectusperry1810 AT liangminhuang dynamicsofreproductiverateoffspringsurvivorshipandgrowthinthelinedseahorsehippocampuserectusperry1810 AT hushansun dynamicsofreproductiverateoffspringsurvivorshipandgrowthinthelinedseahorsehippocampuserectusperry1810 AT peiyongfeng dynamicsofreproductiverateoffspringsurvivorshipandgrowthinthelinedseahorsehippocampuserectusperry1810 |
_version_ |
1721404949740388352 |