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<DIV class=title><A title="Go to Fisheries Research on SciVerse ScienceDirect"
href="http://www.sciencedirect.com/science/journal/01657836"><SPAN>Fisheries
Research</SPAN></A></DIV>
<DIV>Available online 18 May 2012<!--comment--></DIV>
<DIV class=articlePress><FONT size=2></FONT><A
href="http://www.sciencedirect.com/science/article/pii/S0165783612001439#FCANote"><FONT
color=#316c9d></FONT></A> </DIV>
<DIV class=publicationCover><FONT size=4>Jellyfish bycatch diminishes profit in
an anchovy fishery off Peru</FONT></DIV>
<DIV class=publicationCover><A
href="http://www.sciencedirect.com/science/article/pii/S0165783612001439">http://www.sciencedirect.com/science/article/pii/S0165783612001439</A></DIV>
<DIV>Javier Quiñones<A id=baff0005 class=intra_ref title="Affiliation: a"
href="http://www.sciencedirect.com/science/article/pii/S0165783612001439#aff0005"
jQuery171012716984925020636="20"><SUP><FONT color=#316c9d
size=1>a</FONT></SUP></A><SUP><FONT size=1>, </FONT></SUP><A id=bcor0005
class=intra_ref title="Corresponding author contact information"
href="http://www.sciencedirect.com/science/article/pii/S0165783612001439#cor0005"
jQuery171012716984925020636="21"><FONT size=1><IMG
alt="Corresponding author contact information"
src="http://cdn.els-cdn.com/sd/entities/REcor.gif"></FONT></A><SUP><FONT
size=1>, </FONT></SUP><A href="mailto:jquinones@imarpe.gob.pe"><FONT size=1><IMG
alt="E-mail the corresponding author"
src="http://cdn.els-cdn.com/sd/entities/REemail.gif"></FONT></A>, Aldrin
Monroy<A id=baff0010 class=intra_ref title="Affiliation: b"
href="http://www.sciencedirect.com/science/article/pii/S0165783612001439#aff0010"
jQuery171012716984925020636="22"><SUP><FONT color=#316c9d
size=1>b</FONT></SUP></A>, E. Marcelo Acha<A id=baff0015 class=intra_ref
title="Affiliation: c"
href="http://www.sciencedirect.com/science/article/pii/S0165783612001439#aff0015"
jQuery171012716984925020636="23"><SUP><FONT color=#316c9d
size=1>c</FONT></SUP></A>, Hermes Mianzan<A id=baff0015 class=intra_ref
title="Affiliation: c"
href="http://www.sciencedirect.com/science/article/pii/S0165783612001439#aff0015"
jQuery171012716984925020636="24"><SUP><FONT color=#316c9d
size=1>c</FONT></SUP></A><SUP><FONT size=1>, </FONT></SUP><A
href="mailto:hermes@inidep.edu.ar"><FONT size=1><IMG
alt="E-mail the corresponding author"
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<DIV id=aff0005><SUP><FONT size=1>a</FONT></SUP> Laboratorio Costero de Pisco,
Instituto del Mar del Perú (IMARPE), Av. Los Libertadores A-12, Urb. El Golf,
Paracas, Ica, Perú<SUP><FONT size=1>b</FONT></SUP> Laboratorio Costero de
Matarani, Instituto del Mar del Perú. (IMARPE), Av. Arequipa 405, Matarani,
Islay, Arequipa, Perú<SUP><FONT size=1>c</FONT></SUP> Instituto de
Investigaciones Marinas y Costeras (Universidad Nacional de Mar del Plata y
Consejo Nacional de Investigaciones Científicas y Técnicas) e Instituto Nacional
de Investigación y Desarrollo Pesquero (INIDEP), Paseo Victoria Ocampo n°1,
B7602HSA, Mar del Plata, Argentina</DIV>
<DIV> </DIV>
<DIV><STRONG>Abstract</STRONG></DIV>
<P id=spar0010>Peru supports one of the world's largest single-species fisheries
based on the Peruvian anchovy (<EM>Engraulis ringens</EM> L. Jenyns, 1842), and
bycatch of the scyphomedusa <EM>Chrysaora plocamia</EM> (Lesson, 1832) affects
this fishery. Medusae display strong seasonal fluctuations, with peak abundances
during summer. Off southern Peru and during the austral summer 2008-2009, <EM>C.
plocamia</EM> were > 30% of the catch in 5% of the hauls, which was
enough to cause economic losses of more than 200,000 US$ in only 35 d of
fishing. Fishery factories refused to receive the catch if jellyfish bycatch
was > 40% of the catch in weight. Economic losses could
substantially increase during warm periods like El Niño, during which <EM>C.
plocamia</EM> medusa abundances greatly increase. This study was the first
attempt to quantify economic losses due to jellyfish through the use of bycatch
rates and interviews with employees of fishery
factories.</P></FONT><BR>
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