Evidence map›Paper›PMID 11703878›Full record

ArticleProceedings. Biological sciences2001

Sperm quality in the alternative reproductive tactics of Atlantic salmon: the importance of the loaded raffle mechanism.

T V Vladić, T Järvi

Open access · greenAbstract read
In one paragraph

Article in Proceedings. Biological sciences, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
5.5field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 154 citations in OpenAlex.

  1. Male alternative reproductive tactics and sperm competition: a meta-analysis.Biological reviews of the Cambridge Philosophical Society · 2022
    Pooled it
  2. Article
  3. Sperm and alternative reproductive tactics: a review of existing theory and empirical data.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020
    Review
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  11. How multiple mating by females affects sexual selection.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2013
    Review
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  20. Evolutionary trade-off between weapons and testes.Proceedings of the National Academy of Sciences of the United States of America · 2006
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 2 institutions in 1 country.

T V VladićDepartment of Zoology, Stockholm University, SE-106 91 Stockholm, Sweden. tomislav.vladic@fiskeriverket.se
T Järvi
Stockholm University · SESwedish National Board of Fisheries · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The outcome of sperm competition in species with alternative male reproductive strategies may be determined by fair or loaded raffle mechanisms. The sperm production and quality of male Atlantic salmon using alternative reproductive tactics were investigated in order to determine the relative importance of sperm quality for male reproductive success. Sexually mature resident parr males produced greater numbers of spermatozoa per millilitre of ejaculate and invested more in their gonads as a percentage of body mass than their anadromous counterparts. Parr males had greater proportions of motile spermatozoa and a greater sperm ATP content as compared with anadromous males. Parr males invested relatively more in sperm quality and sperm numbers after the effect of body size was accounted for. In fertilization experiments, parr males fertilized greater proportions of eggs than anadromous males. A polynomial model exhibited a trade-off between testes mass and ejaculate expenditure and explained 60% of the variation. These results establish that, in sperm competition with dominant males, parr males may compensate for behavioural subordinance by producing physiologically superior spermatozoa.

Indexed as

Adenosine TriphosphateAnimalsFemaleFertilizationMaleOrgan SizeReproductionSalmo salarSpermatozoaSperm MotilityTestisAdenosine Triphosphate

Identifiers

PMID11703878
PMCPMC1088889
OpenAlexW2063584231

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.