Abstract
Many bluegill (Lepomis macrochirus) populations are characterized by a stunted adult size structure and consist primarily of individuals that mature at a relatively young age and small size. Little is known about maternal effects in bluegill populations and whether they may explain the occurrence of stunted growth. We spawned bluegill from both stunted and non-stunted populations in experimental tanks and collected eggs and larvae from each clutch. We determined whether differences in egg and oil globule diameter and larval growth existed between eggs collected from females from each population. Egg and oil globule diameter were not related to female length and did not differ between stunted and non-stunted populations. Larvae length after 21 d was positively related to egg diameter but was not related to either female length or oil globule diameter. Consequently, egg diameter had a greater influence on larval growth than female source population or size. No differences were observed between source populations indicating that some aspects of early life history are more heavily influenced by egg properties than adult life history differences between parental source populations.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 299-309 |
| Number of pages | 11 |
| Journal | Journal of Freshwater Ecology |
| Volume | 30 |
| Issue number | 2 |
| DOIs | |
| State | Published - Apr 3 2015 |
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Keywords
- Lepomis macrochirus
- environmental effects
- genetic effects
- life history
- phenotypic variation
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics
- Aquatic Science
Cite this
Egg characteristics and larval growth of bluegill from stunted and non-stunted populations. / Oplinger, Randall W.; Wahl, David H.
In: Journal of Freshwater Ecology, Vol. 30, No. 2, 03.04.2015, p. 299-309.Research output: Contribution to journal › Review article
}
TY - JOUR
T1 - Egg characteristics and larval growth of bluegill from stunted and non-stunted populations
AU - Oplinger, Randall W.
AU - Wahl, David H
PY - 2015/4/3
Y1 - 2015/4/3
N2 - Many bluegill (Lepomis macrochirus) populations are characterized by a stunted adult size structure and consist primarily of individuals that mature at a relatively young age and small size. Little is known about maternal effects in bluegill populations and whether they may explain the occurrence of stunted growth. We spawned bluegill from both stunted and non-stunted populations in experimental tanks and collected eggs and larvae from each clutch. We determined whether differences in egg and oil globule diameter and larval growth existed between eggs collected from females from each population. Egg and oil globule diameter were not related to female length and did not differ between stunted and non-stunted populations. Larvae length after 21 d was positively related to egg diameter but was not related to either female length or oil globule diameter. Consequently, egg diameter had a greater influence on larval growth than female source population or size. No differences were observed between source populations indicating that some aspects of early life history are more heavily influenced by egg properties than adult life history differences between parental source populations.
AB - Many bluegill (Lepomis macrochirus) populations are characterized by a stunted adult size structure and consist primarily of individuals that mature at a relatively young age and small size. Little is known about maternal effects in bluegill populations and whether they may explain the occurrence of stunted growth. We spawned bluegill from both stunted and non-stunted populations in experimental tanks and collected eggs and larvae from each clutch. We determined whether differences in egg and oil globule diameter and larval growth existed between eggs collected from females from each population. Egg and oil globule diameter were not related to female length and did not differ between stunted and non-stunted populations. Larvae length after 21 d was positively related to egg diameter but was not related to either female length or oil globule diameter. Consequently, egg diameter had a greater influence on larval growth than female source population or size. No differences were observed between source populations indicating that some aspects of early life history are more heavily influenced by egg properties than adult life history differences between parental source populations.
KW - Lepomis macrochirus
KW - environmental effects
KW - genetic effects
KW - life history
KW - phenotypic variation
UR - http://www.scopus.com/inward/record.url?scp=84929264796&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84929264796&partnerID=8YFLogxK
U2 - 10.1080/02705060.2014.947340
DO - 10.1080/02705060.2014.947340
M3 - Review article
AN - SCOPUS:84929264796
VL - 30
SP - 299
EP - 309
JO - Journal of Freshwater Ecology
JF - Journal of Freshwater Ecology
SN - 0270-5060
IS - 2
ER -