نتایج جستجو برای: fishing mortality proxy

تعداد نتایج: 325174  

Journal: :Journal of nutritional science and vitaminology 1992
Y Tamura A Hirai T Terano H Saitoh S Yoshida

Between 1978 and 1980, we investigated and compared the dietary intake of fish meat, platelet function, rheological properties of blood and mortality rate due to thrombotic cardiovascular diseases between the residents of fishing and farming villages. Notable finding is that the dietary intake of EPA in the residents of fishing village was nearly 3 times (2.5 g/day) higher than that (0.9g/day) ...

ژورنال: بوم شناسی آبزیان 2014
Paighambari, Seyed Yousef , Raeisi, Hadi , Rezaei, Sedighe , Shabani, Mohamad Javad ,

This study was performed to estimate the growth parameters and mortality rate of (Nemipterus japonicus Bloch, 1971) with using length frequency data in Bushehr fishing grounds. sampling did monthy with using cutlassfish pelagic trawl, gillnet and bottem trawl. The growth parameters of k and L∞ were estimated 0.79 y-1 and 31.5 cm respectively. The t0 was estimated -0.2. b quantity for this spe...

2017
Beatriz Diaz Pauli Jeppe Kolding Geetha Jeyakanth Mikko Heino

Growth, onset of maturity and investment in reproduction are key traits for understanding variation in life-history strategies. Many environmental factors affect variation in these traits, but for fish, hypoxia and size-dependent mortality have become increasingly important because of human activities, such as increased nutrient enrichment (eutrophication), climate warming and selective 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...

2005
S. Barot M. Heino M. J. Morgan U. Dieckmann

To interpret long-term trends in age and size at maturation, new statistical methods have recently been devised for estimating probabilistic maturation reaction norms based on data collected for the management of fisheries. Here we apply these methods to three Newfoundland stocks of American plaice (NAFO Divisions 2J3K, 3LNO, 3Ps) and report a clear long-term shift in the maturation reaction no...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1390

over the past decades a number of approaches have been applied for forecasting mortality. in 1992, a new method for long-run forecast of the level and age pattern of mortality was published by lee and carter. this method was welcomed by many authors so it was extended through a wider class of generalized, parametric and nonlinear model. this model represents one of the most influential recent d...

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...

2003
M. Shiham Adam John Sibert David Itano Kim Holland

Tag release and recapture data of bigeye (Thunnus obesus) and yellowfin tuna (T. albacares) from the Hawaii Tuna Tagging Project (HTTP) were analyzed with a bulk transfer model incorporating size-specific attri­ tion to infer population dynamics and transfer rates between various fishery components. For both species, the transfer rate estimates from the offshore handline fishery areas to the lo...

F. Kaymaram Gh. Vosooghi R. Gilanshahi, S. A. Taghavimotlagh S. M. R. Fatemi

The growth parameters, mortality rates and exploitation population dynamic parameters and exploitation rate of Psettodes erumei were assessed between July 2010 to June 2011 using length frequency analysis. The data were collected from landing sites of Jask, Bandar Abass, Kong and Qeshm Hormozgan province waters. Using total weight (W) and total length (TL) data, the length- weight relationship ...

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