|
|
|
|
| |
|
| |
|
|
| Alfonso, Sebastien. |
| In the frame of this thesis, we first studied the establishment of personality in teleost, the consistency across context and different life stages as well as the associated physiological mechanisms. Personality appeared consistent across contexts over a short time period but it was no longer the case over a long period of time, especially between different life stages. Physiological mechanisms of stress regulation, as well as activity and neural plasticity, differed according to individual boldness. Then, we studied the physiological and behavioural responses of teleost fish chronically exposed to an environmentally relevant mixture of POP (PCBs and PBDEs), as well as those of their unexposed offspring. Different behavioural alterations in larval... |
| Tipo: Text |
Palavras-chave: Polluants; Comportement; Environnement; Stress; Polluants; Stress; Teleost fish; Environment. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00499/61019/64421.pdf |
| |
|
|
| Le Gall, Yves; Origne, Laurent; Scalabrin, Carla; Morizur, Yvon. |
| Acoustic deterrent devices could be an appealing solution to tackle accidental cetacean by-catches in pelagic trawls or in fishing net gears. The bibliographical data on two species (Harbour porpoise and bottlenosed dolphin) have been analyzed in terms of audiogram, discomfort noise level that could lead to behavioural changes, sensory fatigue, and threshold for permanent hearing injuries. It is possible, on the basis of the above data, to characterize an efficient annoyance sound threshold which is not harmful to the species to be protected. Taking into account the properties of the sound waves propagation in the marine environment and according to the required range, the minimal amplitude of the repulsive sound to emit is proposed. Accordingly, the... |
| Tipo: Text |
Palavras-chave: Wave propagation; Behaviour; Audiogram; Capture; Cetacean; In fishing net gear; Pelagic trawl; Acoustic deterrent; Propagation onde; Comportement; Audiogramme; Capture; Cétacé; Filet; Pêche artisanale; Chalutage pélagique; Répulsif acoustique. |
| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/2004/acte-1124.pdf |
| |
|
|
| Lachambre, Sébastien. |
| In the context of an increasing demand and a declining supply from fisheries, worldwide aquaculture production of abalone has greatly increased in the last decades. Selective breeding has been initiated to improve growth in major abalone species. In France, the abalone production was initiated 30 years ago and struggles to develop. This CIFRE PhD co-financed by France Haliotis, the only French hatchery in activity, was initiated to study early domestication process of farmed abalone population and to provide knowledge required to design a selective breeding program adapted to this company. Wild and farmed populations were compared, showing that, until 2013, farmed and wild abalone presented similar performances. However, lower physiological and behavioural... |
| Tipo: Text |
Palavras-chave: Sélection génétique; Ormeaux; Croissance; Physiologie; Comportement; Selective Breeding; Abalone; Growth; Physiology; Behaviour. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00441/55231/56711.pdf |
| |
|
|
| Deschamps, Gerard; Miossec, Dominique; Pannier, Thierry. |
| The research programme developed within in the framework of the project study of the Paluel site allowed us to highlight, near the drainage channel of the Durdent, a sea trout fishery using fixed nets in the area of the swaying of the tides. This activity, very much in use in the eastern English Channel and along the southern shoreline of the North Sea, not only for catching certain amphibiotic species but also species that are strictly of the sea, represents a sizeable cause of the mortality rate for salmonid populations during their coastal migrations. The studies begun on this fishery in 1980 have as their goal to assess the size of the salmonid catches near the site, especially of sea trout, and to acquire more complete knowledge of the catch, biology... |
| Tipo: Text |
Palavras-chave: Fishing; Behaviour; Biology; Nuclear plant; Survey; Paluel (France); Sea trout; Capture; Comportement; Biologie; Centrale nucléaire; Surveillance; Paluel; Truite de mer. |
| Ano: 1983 |
URL: http://archimer.ifremer.fr/doc/1983/rapport-2503.pdf |
| |
|
|
| Masse, Jacques. |
| Afler a short review of acoustic principles, methodology and purposes of accustic surveys are described and some examples given. IFREMER instrumentation, strategy and calculations used during echo sur veys are described in details and criticized. Five acouslic sur veys carried o t in the Bay of Biscay between 1983 and 1987 show that several species are generally mixed , and lheir identification is very oflen biased by behaviour phenomena. A new way of classi fying echotraces and interpretating data has been applied to these surveys. The results are summarized in tables and maps. Whenever multispecies structures are concerned, it seems at present impossible to assess absolute biomasses based on acoustic survey method. ln such a situation, acoustic surveys... |
| Tipo: Text |
Palavras-chave: Echo-intégration; Golfe de Gascogne; Petits pélagiques; Comportement; Evaluation; Acoutic; Surveys; Bay of Biscay; Pelagic fishes; Behaviour; Assessment. |
| Ano: 1988 |
URL: http://archimer.ifremer.fr/doc/00455/56654/58395.pdf |
| |
|
|
|
