Results 161 to 170 of about 307,897 (205)
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Fishing Behavior and the Length of the Fishing Season
Marine Resource Economics, 1998The basic hypothesis of this paper is that the amount of fishing that a fish harvester undertakes during a year is not determined entirely by circumstances which are exogenous to the fisher, such as weather conditions and resource availability, but is also partially a matter of individual choice.
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TROUT — A FISH FOR ALL SEASONS
Nutrition & Food Science, 1986Trout was once considered a luxury available only to fishermen and poachers. It is now one of the most widely and consistently available fish in Europe, one with an economical price tag which is devoid of seasonal ...
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Seasonally resolved environmental reconstructions using fish otoliths
Canadian Journal of Fisheries and Aquatic Sciences, 2017Exploiting the chemical and growth properties of otoliths, this study demonstrates how environmental archives with high temporal resolution can be developed. Elemental profiles (Ba:Ca and Sr:Ca) of fish otoliths (ear bones) from the estuarine species Acanthopagrus butcheri (black bream) were related to growth increments on a seasonal time scale.
Izzo, C. +5 more
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Seasonal Development of Phytoplankton in Fish Ponds
Internationale Revue der gesamten Hydrobiologie und Hydrographie, 1974AbstractAt the fish ponds under study the authors defined several types of plankton which have been frequently found during the season (April – October). These types are: Early‐spring maximum of phytoplankton, Depression of phytoplankton, Bloom of Aphanizomenon, Maximum of Chlorococcales.The periods of “depression” seem to be typical for the managed ...
Jan Fott +4 more
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The spawning seasons of Caribbean reef fishes
Journal of Fish Biology, 1973Observations are recorded on the time of spawning of 83 species of Caribbean reef fishes. Details of seasonal variations in the percentage of sexually active fishes are given for 35 species. The majority of species spawn mostly when water temperatures are minimal, in February, March and April.
J. L. Munro +3 more
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Seasonality and recruitment of coral reef fishes
Marine and Freshwater Research, 1977Information is given on the times of recruitment of 54 species of coral reef fishes which inhabit the lagoon at One Tree Island, Great Barrier Reef. The information is based on observations of juvenile settlement over nearly 3 years. Most of the fishes have fairly long breeding seasons and reproduction occurs mainly during the summer months from about ...
BC Russell, GRV Anderson, FH Talbot
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Seasonal variations of thyroid hormone levels in wild fish
Comptes Rendus de l'Académie des Sciences - Series III - Sciences de la Vie, 2000Variations in plasma thyroxine (T4) and triiodothyronine (T3) contents of pike, pikeperch, perch, bream and chub from a large reservoir (Pareloup, South of France) were investigated before and during the progressive emptying of the reservoir. Fish were caught by gill nets, except at the last time of emptying when controls were collected with landing ...
F, Bau, J P, Parent
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Seasonality of Reproduction in Amazonian Fishes
1992In his famous monograph on the fisheries of Amazonia, Jose Verissimo (1895) emphasized the need for studying the times of reproduction of different species in relation to annual water level changes. Verissimo also made a reasonably accurate estimation of about 2000 Amazonian species, one-tenth of which he considered to be well known because of their ...
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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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Seasonal plasticity in telencephalon mass of a benthic fish
Journal of Fish Biology, 2014To gain a deeper understanding of how environmental conditions affect brain plasticity, brain size was explored across different seasons using the invasive round goby Neogobius melanostomus. The results show that N. melanostomus had heavier telencephalon in the spring compared to the autumn across the two years of study.
E S, McCallum, P M, Capelle, S, Balshine
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