Results 1 to 10 of about 26,220 (70)
High bycatch rates of manta and devil rays in the “small-scale” artisanal fisheries of Sri Lanka [PDF]
PeerJ, 2021 Background Expanding fisheries in developing nations like Sri Lanka have a significant impact on threatened marine species such as elasmobranchs.
Daniel Fernando, Joshua D. Stewart
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Evolutionary Applications, 2021 Investigating whether changes within fish populations may result from harvesting requires a comprehensive approach, especially in more data‐sparse northern regions.
Ella Bowles +3 more
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Ontogenetic Basis of Among-Generation Differences in Size-Related Traits in a Polyphenic Butterfly
Frontiers in Ecology and Evolution, 2021 Seasonal polyphenisms are cases in which individuals representing generations occurring in different times of the year systematically differ in their morphological, physiological, and/or behavioral traits. Such differences are often assumed to constitute
Toomas Esperk, Toomas Tammaru
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Shrinking fish: comparisons of prehistoric and contemporary salmonids indicate decreasing size at age across millennia [PDF]
Royal Society Open Science, 2014 A comparison of Upper Palaeolithic and contemporary salmonid vertebrae from the Iberian Peninsula indicates that there has been a significant decrease in the mean body size for a given age among Atlantic salmon and brown trout inhabiting the southernmost
Pablo Turrero +2 more
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Evolutionary Applications, 2020 Variation in size and age at maturity is an important component of life history that is influenced by both environmental and genetic factors. In salmonids, large size confers a direct reproductive advantage through increased fecundity and egg quality in ...
Garrett J. McKinney +5 more
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Heliyon, 2023 This study evaluated the reproductive and productivity of local and Dorper crossbred ewes in a community-based management system. We analyzed data collected from 2013 to 2021, taking into account different factors such as dam-breed, location, type of ...
Ayele Abebe +4 more
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Developing a size indicator for fish populations
Scientia Marina, 2008 Monitoring temporal and/or spatial variations in fish size-at-age data can often provide fisheries managers with important information about the status of fish stocks and therefore help them identify necessary changes in management policies. However, due
Yong Chen, Xinjun Chen, Liuxiong Xu
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Biological and statistical interpretation of size-at-age, mixed-effects models of growth [PDF]
Royal Society Open Science, 2020 The differences in life-history traits and processes between organisms living in the same or different populations contribute to their ecological and evolutionary dynamics.
Simone Vincenzi +2 more
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BMC Women's Health, 2020 Background Uganda’s fertility was almost unchanging until the year 2006 when some reductions became visible. Compared to age at first marriage and contraceptive use, age at sexual debut and family size preferences are rarely examined in studies of ...
Paulino Ariho, Allen Kabagenyi
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Scientia Marina, 2011 Skeletochronology was applied to humerus bones to assess the age and growth rates of loggerhead sea turtles (Caretta caretta) in the Mediterranean Sea. Fifty-five dead turtles with curved carapace lengths (CCL) ranging from 24 to 86.5 cm were collected ...
Paolo Casale +4 more
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