Life history adaptations of Gasterosteus aculeatus in a Mediterranean wetland

1987 ◽  
Vol 18 (2) ◽  
pp. 109-125 ◽  
Author(s):  
Alain J. Crivelli ◽  
Robert H. Britton
Keyword(s):  
Life History ◽  
Gasterosteus Aculeatus

Haidadinium ichthyophilum gen.nov. et sp.nov. (Phytodiniales, Dinophyceae), a freshwater ectoparasite on stickleback (Gastetosteus aculeatus) from the Queen Charlotte Islands, Canada

1997 ◽  
Vol 75 (11) ◽  
pp. 1936-1940 ◽  
Author(s):  
J. Buckland-Nicks ◽  
D. J. Garbary ◽  
T. E. Reimchen
Keyword(s):  
Life History ◽  
Gasterosteus Aculeatus ◽  
New Genus ◽  
Threespine Stickleback ◽  
Epithelial Hyperplasia ◽  
Fish Kills ◽  
Life History Stages ◽  
Queen Charlotte Islands ◽  
The Family ◽  
Complex Life History

The dinoflagellate Haidadinium ichthyophilum gen.nov. et sp.nov. is associated with the threespine stickleback, Gasterosteus aculeatus L., in freshwater. This new genus differs from all previously described dinoflagellates in the morphology and ultrastructure of its complex life history stages and in the ecology of its interaction with G. aculeatus. Distinguishing characters included (i) the absence of thecal plates and the occurrence of chloroplastes in the short-lived swarmer (=dinospore) stage; (ii) the development of four distinct amoeboid stages including a spheroidal, rolling amoeba unknown in any other species; and (iii) the fact that this dinoflagellate causes epithelial hyperplasia in the stickleback and does not result in massive fish kills. Haidadinium ichthyophilum is known only from two acidic lakes in the Queen Charlotte Islands, British Columbia, Canada. Haidadinium is tentatively assigned to the family Phytodiniaceae of the order Phytodiniales. Key words: dinoflagellates, Dinophyceae, Gasterosteus, Haidadinium ichthyophilum gen.nov. et sp.nov., Queen Charlotte Islands, Phytodiniales, symbiosis, taxonomy, ultrastructure.

scholarly journals A genetics-based approach confirms immune associations with life history across multiple populations of an aquatic vertebrate (Gasterosteus aculeatus )

2018 ◽  
Vol 27 (15) ◽  
pp. 3174-3191 ◽  
Author(s):  
James R. Whiting ◽  
Isabel S. Magalhaes ◽  
Abdul R. Singkam ◽  
Shaun Robertson ◽  
Daniele D'Agostino ◽  
...  
Keyword(s):  
Life History ◽  
Gasterosteus Aculeatus ◽  
Multiple Populations ◽  
Aquatic Vertebrate

scholarly journals Growth rates in two natural populations of Gasterosteus aculeatus in northwestern Spain: relationships with other life history parameters

2020 ◽  
pp. 233-242
Author(s):  
E. San Miguel ◽  
R. Amaro ◽  
J. Castro ◽  
M. Hermida ◽  
C. Fernández
Keyword(s):  
Life History ◽  
Growth Rates ◽  
Gasterosteus Aculeatus ◽  
Natural Populations ◽  
Nonlinear Function ◽  
Mortality Rates ◽  
Model Parameters ◽  
Peripheral Populations ◽  
Von Bertalanffy ◽  
Von Bertalanffy Model

We analysed growth rates of two natural populations of the three–spined stickleback fish, Gasterosteus aculeatus, in Galicia (north–west of Spain) where it has a strictly annual life cycle. We used the von Bertalanffy growth model to estimate nonlinear function for length–at–age data sets. These European peripheral populations reach the highest growth rates (k of the von Bertalanffy model > 0.4 month–1) known for this species. Instantaneous mortality rates and fecundity were computed using von Bertalanffy model parameters for each population. Mortality rates found in Galician populations were 2.0–2.3 higher times than those observed in general for Gasterosteidae. Combining both mortality and fertility, different intermediate fitness optima in each population were obtained for mature females. Overall, these differences in life history compared to other studied populations of sticklebacks can be interpreted as local adaptations to a Mediterranean climate type with high degree–days. Consequently, these populations at the edges of the species’ range may have adapted to the unique environmental conditions and may be of interest in ecology and conservation.

RISK-TAKING BY THREESPINE STICKLEBACK (GASTEROSTEUS ACULEATUS) PELVIC PHENOTYPES: DOES MORPHOLOGY PREDICT BEHAVIOUR?

Behaviour ◽  
2000 ◽  
Vol 137 (7-8) ◽  
pp. 889-906 ◽  
Author(s):  
Tamara Grand
Keyword(s):  
British Columbia ◽  
Life History ◽  
Risk Taking ◽  
Gasterosteus Aculeatus ◽  
Positive Relationship ◽  
Threespine Stickleback ◽  
Risk Exposure ◽  
The Relationship ◽  
Lateral Plates

AbstractThe relationship between risk-taking behaviour and anti-predator morphology was studied in benthic threespine stickleback fish (Gasterosteus aculeatus) from Paxton and Priest Lakes on Texada Island, British Columbia, Canada. In general, Priest Lake benthics possess complete pelvic girdles and numerous lateral plates. In contrast, Paxton Lake benthics exhibit an apparent polymorphism in anti-predator morphology; some individuals possess complete pelvic girdles while others lack them entirely. Although phenotypes tended to differ in their willingness to risk exposure to a trout predator while foraging, the predicted positive relationship between risk-taking behaviour and anti-predator morphology was not observed. While 'girdled' Paxton individuals were more willing to forage in the vicinity of the predator than 'girdleless' Paxton individuals, the more heavily armoured Priest fish were intermediate in their risk-taking behaviour. These results suggest that the relationship between risktaking behaviour and anti-predator morphology may be influenced by differences between phenotypes in predation regime and life history.

Adaptive, genetically based differences in life history between estuary and freshwater threespine sticklebacks (Gasterosteus aculeatus L.)

1989 ◽  
Vol 67 (10) ◽  
pp. 2448-2454 ◽  
Author(s):  
Randal J. Snyder ◽  
Hugh Dingle
Keyword(s):  
Life History ◽  
Life Histories ◽  
Life History Theory ◽  
Gasterosteus Aculeatus ◽  
Genetic Variance ◽  
The Body ◽  
Life Styles ◽  
First Reproduction ◽  
Freshwater Population ◽  
Threespine Sticklebacks

Life history theory predicts that migratory fishes should delay reproduction, be larger at maturity, and have higher fecundities than nonmigrants. We tested this hypothesis by comparing life histories of laboratory-reared estuary and freshwater threespine sticklebacks (Gasterosteus aculeatus L.) from the Navarro River, California. We also estimated phenotypic correlations and genetic variance (broad-sense heritabilities) for reproductive characteristics of these fish. The more migratory estuary sticklebacks delayed reproduction, were larger at first reproduction, and had higher fecundities than the freshwater fish. We found no significant differences in interclutch interval or average size of eggs. The body size – fecundity relationship did not differ among these populations, unlike the findings in previous reports comparing anadromous and freshwater threespine sticklebacks. We found significant levels of genetic variance for age and size at first reproduction in both populations, and for fecundity in the freshwater population. The estuary and freshwater sticklebacks did not differ in average number of fin rays, gill rakers, or lateral plates, indicating that differentiation in life history has not been accompanied by significant changes in these characteristics. These results provide evidence of genetic divergence between these populations with respect to life histories, and the nature of these differences suggests that adaptation to different migratory life-styles has occurred.

Phenotypic Variation in Threespine Sticklebacks (Gasterosteus aculeatus) of the Chignik River System, Alaska

1969 ◽  
Vol 26 (2) ◽  
pp. 405-412 ◽  
Author(s):  
David W. Narver
Keyword(s):  
Life History ◽  
Phenotypic Variation ◽  
Gasterosteus Aculeatus ◽  
River System ◽  
Threespine Stickleback ◽  
Caudal Peduncle ◽  
Threespine Sticklebacks ◽  
History Of ◽  
Lateral Plates

Four phenotypes of the threespine stickleback, Gasterosteus aculeatus Linnaeus, were identified from the two Chignik lakes, Alaska: unplated (2–6 anterior plates); half-plated (7–15 anterior plates); fully plated (18–22 plates) lacustrine; and fully plated (18–22) estuarine. Distinctions lie in number and size of lateral plates and extent of lateral keel development on the caudal peduncle. Composition of the three lacustrine phenotypes in either lake population was similar among the years 1962–64 for both age I and age II in Black Lake but dissimilar in Chignik Lake. The Black Lake population contained a higher proportion of the unplated and half-plated phenotypes but fewer of the fully plated phenotypes than the Chignik Lake population. The life history of the estuarine phenotype is outlined. The mechanisms responsible for the maintenance of the four phenotypes in the Chignik River system have not been determined.

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