نتایج جستجو برای: msy

تعداد نتایج: 267  

Journal: :Biology letters 2010
Henrik Sparholt Robin M Cook

The theory of maximum sustainable yield (MSY) underpins many fishery management regimes and is applied principally as a single species concept. Using a simple dynamic biomass production model we show that MSY can be identified from a long time series of multi-stock data at a regional scale in the presence of species interactions and environmental change. It suggests that MSY is robust and calcu...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2006
Stuart Pimm Peter Raven Alan Peterson Cagan H Sekercioglu Paul R Ehrlich

Unqualified, the statement that approximately 1.3% of the approximately 10,000 presently known bird species have become extinct since A.D. 1500 yields an estimate of approximately 26 extinctions per million species per year (or 26 E/MSY). This is higher than the benchmark rate of approximately 1 E/MSY before human impacts, but is a serious underestimate. First, Polynesian expansion across the P...

2017
Beniamino Trombetta Eugenia D’Atanasio Fulvio Cruciani

The male-specific region of the human Y chromosome (MSY) is characterized by the lack of meiotic recombination and it has long been considered an evolutionary independent region of the human genome. In recent years, however, the idea that human MSY did not have an independent evolutionary history begun to emerge with the discovery that inter-chromosomal gene conversion (ICGC) can modulate the g...

2013
Rainer Froese Dirk Zeller Kristin Kleisner Daniel Pauly

In a previous contribution to this journal (Froese et al. 2012), we refuted criticism of a simple method (Froese and Kesner-Reyes 2002) that derives information about the status of global stocks from global catch data. This method assumes that, for a given stock, the ratio of current catches to previous maximum catches (Cmax) is indicative of the likely current exploitation status of the stock....

Journal: :Mathematical biosciences 2016
Zafer Kanik Serkan Kucuksenel

One of the main goals stated in the proposals for the Common Fisheries Policy (CFP) reform was achieving maximum sustainable yield (MSY) for all European fisheries. In this paper, we propose a fishing rights allocation mechanism or management system, which specifies catch limits for individual fishing fleets to implement MSY harvesting conditions in an age-structured bioeconomic model. An age-s...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2004
Krzysztof Ginalski Leszek Rychlewski David Baker Nick V Grishin

The complete sequence of the male-specific region of the human Y chromosome (MSY) has been determined recently; however, detailed characterization for many of its encoded proteins still remains to be done. We applied state-of-the-art protein structure prediction methods to all 27 distinct MSY-encoded proteins to provide better understanding of their biological functions and their mechanisms of ...

Journal: :Genome research 2013
Gang Li Brian W Davis Terje Raudsepp Alison J Pearks Wilkerson Victor C Mason Malcolm Ferguson-Smith Patricia C O'Brien Paul D Waters William J Murphy

Although more than thirty mammalian genomes have been sequenced to draft quality, very few of these include the Y chromosome. This has limited our understanding of the evolutionary dynamics of gene persistence and loss, our ability to identify conserved regulatory elements, as well our knowledge of the extent to which different types of selection act to maintain genes within this unique genomic...

Journal: :Genome research 2016
Pille Hallast Pierpaolo Maisano Delser Chiara Batini Daniel Zadik Mariano Rocchi Werner Schempp Chris Tyler-Smith Mark A Jobling

The distribution of genetic diversity in great ape species is likely to have been affected by patterns of dispersal and mating. This has previously been investigated by sequencing autosomal and mitochondrial DNA (mtDNA), but large-scale sequence analysis of the male-specific region of the Y Chromosome (MSY) has not yet been undertaken. Here, we use the human MSY reference sequence as a basis fo...

2016
Mark D. Scheuerell

Stock-recruitment models have been used for decades in fisheries management as a means of formalizing the expected number of offspring that recruit to a fishery based on the number of parents. In particular, Ricker's stock recruitment model is widely used due to its flexibility and ease with which the parameters can be estimated. After model fitting, the spawning stock size that produces the ma...

2013
Villy Christensen

It has been generally accepted for more than half a century that the fishing sector stood to gain from managing fisheries at the effort level producing maximum economic yield (MEY) rather than at the higher effort level producing maximum sustainable yield (MSY). However, the acceptance is built on evaluating only the revenue and cost structure for the fishing fleet, not for the overall fishing ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید