{'fraction_non_alphanumeric': 0.016550522648083623, 'fraction_numerical': 0.003484320557491289, 'mean_word_length': 4.892307692307693, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
An update of the application of the A-SCALA method to bigeye tuna in the western and central Pacific Ocean

An age-structured statistical catch-at-length analysis (A-SCALA) is applied to the bigeye tuna population in the western central Pacific Ocean (WCPO). The results suggest that the biomass at the start of 2002 is below the level that is required to produce maximum sustainable yield (MSY) and will reduce under average conditions and recent effort levels. The recent average weight of bigeye in the catch is much lower than the weight which would maximize yields suggesting that reallocation of effort from fishing methods that capture small bigeye to methods that capture large bigeye would substantially increase yields. This is also supported by MSY calculations carried out separately for each method type. The results of the analyses are very sensitive to the Indonesian fisheries, which catch a large number of small bigeye. Unfortunately, the amount and size structure of the catch from the Indonesian fisheries is highly uncertain and more data from these fisheries should be a priority for the management of bigeye tuna in the WCPO.