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Estrogen-dependent seasonal adaptations in the immune response of fish
Hormones and Behavior, 2017Clinical and experimental evidence shows that estrogens affect immunity in mammals. Less is known about this interaction in the evolutionary older, non-mammalian, vertebrates. Fish form an excellent model to identify evolutionary conserved neuroendocrine-immune interactions: i) they are the earliest vertebrates with fully developed innate and adaptive ...
Szwejser, Ewa +3 more
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Seasonal dynamics of riverine fish communities using eDNA
Journal of Fish Biology, 2019AbstractAs fish communities are a major concern in rivers ecosystems, we investigated if their environmental (e)DNA signals vary according to the sampling period or hydromorphological conditions. Three rivers were studied over a year using eDNA metabarcoding approach. The majority of the species (c.
Tristan Milhau +6 more
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Reproductive Seasonality in the Fishes of a Tropical Stream
Ecology, 1978The reproductive seasons of 6 species of characoid fishes inhabiting a tropical forest stream in Panama were determined from observations on gonadal condition and size frequency distribution of the populations over an 18—mo period. In this area the relatively mild dry season lasts °4 mo, stream discharge increases moderately during the rainy season ...
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Seasonal dating from fish frequencies
Journal of Archaeological Science, 1982Abstract The method of seasonal dating from fish remain suggested by Leach is shown to be unsatisfactory. The method requires catch statistics that are at present unavailable. More important, when the method proposed for manipulating the data was applied to a set of hypothetical data, the results were not an accurate reflection of what was a very ...
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2016
Pamphlet listing hunting seasons by province/state and animal. Two copies.
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Pamphlet listing hunting seasons by province/state and animal. Two copies.
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Effect of Season and Environment on the Retinal Pigments of Two Fishes
Nature, 1964DARTNALL et al.1 have shown that in the paired-pigment species Scardinius erythrophthalmus (visual pigments based on vitamin A1 and on vitamin A2) the retina is dominated by the vitamin A2-based pigment in the winter and by the vitamin A1-based pigment in the summer (in England at latitude 52° N.). The present report concerns a similar investigation on
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Seasonality of reproduction by liverbearing fishes in tropical rainforest streams
Oecologia, 1993Reproductive ecology, population structure, and diets of three common livebearing poeciliid fishes (Alfaro cultratus, Phallichthys amates, Poecilia gilli) from rainforest streams in Costa Rica were investigated over ten continuous months. The region experiences little annual temperature variation, and although monthly rainfall is continuous each year ...
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Marketable fish production: seasonal ponds
2021The STREAM Initiative was hosted at the Network of Aquaculture Centres in Asia-Pacific (NACA) in Bangkok (Thailand)
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Seasonal energy investment and metabolic patterns in a farmed fish
Journal of Thermal BiologyThe present research focuses on the seasonal changes in the energy content and metabolic patterns of red porgy (Pagrus pagrus) sampled in a fish farm in North Evoikos Gulf (Greece). The study was designed in an effort to evaluate the influence of seasonality in several physiological feauteres of high commercial importance that may affect feed intake ...
Vasiliki, Makri +6 more
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