نتایج جستجو برای: natural and fishing mortality

تعداد نتایج: 16915710  

ژورنال: آبزیان زینتی 2022

The genus Aphanius belong to the family Aphaniidae which is widely distributed in the Mediterranean basin, the Red Sea, the Persian Gulf and brackish and freshwaters of Iran, Pakistan and India. To date, 14 species have been described under the genus Aphanius, in Iran. Currently, due to human-induced disturbance activities (hydrological alteration, introduction of exotic species, over-fishing, ...

2015
Melanie Rhiannon Hutchinson David George Itano Jeffrey Allen Muir Kim Nicholas Holland

Juvenile silky sharks Carcharhinus falciformis comprise the largest component of the incidental elasmobranch catch taken in tropical tuna purse seine fisheries. During a chartered cruise on board a tuna purse seine vessel conducting typical fishing operations we investigated the post-release survival and rates of interaction with fishing gear of incidentally captured silky sharks using a combin...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده ادبیات و علوم انسانی 1391

‘romanticism’ and ‘romantic’ are among the most controversial terms in literature. most readers, when encountering these words, would think of the well-known period of romanticism of the first three decades of the nineteenth century and the great six english poets known as ‘the big six’ of this period. however, romanticism does not belong to certain artists in a special period; one may seek ele...

2009
ALAIN PONSERO LAURENT DABOUINEAU JEREMY ALLAIN

In the Bay of Saint-Brieuc, a 3110 ha tidal bay in NW France, English channel, the cockle (Cerastoderma edule) has been collected by traditional fishing methods for many decades without any evaluation or management of this resource taking place. Since 2001, the national Natural Reserve of the bay of Saint-Brieuc has carried out an evaluation of the stock and a mapping of the cockle fishing grou...

Journal: :The British journal of nutrition 2003
Tomoki Nakamura Akihiro Azuma Toshiro Kuribayashi Hiroki Sugihara Seisuke Okuda Masao Nakagawa

CHD mortality is extremely low in Japan, particularly in rural districts, when compared with that in Western countries. This has been partly attributed to the difference in dietary lifestyle. We investigated the factors influencing CHD mortality in a rural coastal district of Japan, comprising mercantile, farming, and fishing areas with distinct dietary habits. We prospectively examined the inc...

2017
M. K. Broadhurst M. Kienzle J. Stewart

The natural mortality (M) and purse-seine catchability and selectivity were estimated for Trachurus novaezelandiae, Richardson, 1843 (yellowtail scad)-a small inshore pelagic species harvested off south-eastern Australia. Hazard functions were applied to two decades of data describing catches (mostly stable at a mean +- SE of 315 +- 14 t p.a.) and effort (declining from a maximum of 2289 to 642...

2016
Montana F. McLean Kyle C. Hanson Steven J. Cooke Scott G. Hinch David A. Patterson Taylor L. Nettles Matt K. Litvak Glenn T. Crossin

White sturgeon (Acipenser transmontanus) are the largest freshwater fish in North America and a species exposed to widespread fishing pressure. Despite the growing interest in recreational fishing for white sturgeon, little is known about the sublethal and lethal impacts of angling on released sturgeon. In summer (July 2014, mean water temperature 15.3°C) and winter (February 2015, mean water t...

2006
Daniel Pauly

INTRODUCTION Fisheries biology was established as a discipline ofits own near the turn of the last century, when scientistS in Northern Europe and America began to ask . • I themselves seriously why fish stocks fl~ctuate and, more specifically, why exploited stocks become depleted. Was it tlie effect offishing or, as many argued, mainly the result of environmental fluctuations? . The Intemation...

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