Research Article

Interannual Differences for Sea Turtles Bycatch in Spanish Longliners from Western Mediterranean Sea

Table 1

Observed hooks and turtle bycatch per year during the study period. Expected loggerhead values were calculated according to the number of hooks, and thus the expected loggerhead is (total loggerhead turtles observed in all the study period the total hooks observed in the year)/total hooks observed in all the study period.

YearHooks 1000LoggerheadLeatherbackExpected loggerhead

1999830.874661414.92
20001196.99610980597.76
2001705.7663470352.45
2002486.7071143243.054
2003345.2093701172.39
2004336.7654670168.18
2005112.7145056.29
2006484.9333220242.16
2007307.654930153.64
2008323.872320161.74
2009394.28710196.9
2010513.4533383256.41
2011854.183160426.57
2012996.3131610497.54

Total7889.71139408 —