A spatially explicit model for predicting the probability of occurrence of zero-catch quadrants in the tuna purse seine fishery of the Eastern Tropical Pacific Ocean
Null purse seine sets (those in which the catch is zero) are common in every tuna fishery in the world. Current evidence suggests that different environmental factors can influence the occurrence of null sets. In this study, we used a long-term (2003–2015) database from the tuna purse seine fishery...
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| Format: | Article |
| Language: | English |
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Universidad Autónoma de Baja California
2020-03-01
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| Series: | Ciencias Marinas |
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| Online Access: | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3026 |
| _version_ | 1797279578766442496 |
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| author | Emigdio Marín-Enríquez Xchel G Moreno-Sánchez Francisco J Urcádiz-Cázares Enrique Morales-Bojórquez J Saúl Ramírez-Pérez |
| author_facet | Emigdio Marín-Enríquez Xchel G Moreno-Sánchez Francisco J Urcádiz-Cázares Enrique Morales-Bojórquez J Saúl Ramírez-Pérez |
| author_sort | Emigdio Marín-Enríquez |
| collection | DOAJ |
| description |
Null purse seine sets (those in which the catch is zero) are common in every tuna fishery in the world. Current evidence suggests that different environmental factors can influence the occurrence of null sets. In this study, we used a long-term (2003–2015) database from the tuna purse seine fishery in the eastern Pacific Ocean to analyze the temporal and spatial variability of the occurrence of 1º × 1º quadrants where the retained tuna catch was zero (“null cells”). We fitted a logistic generalized additive model to predict the occurrence of null cells as a function of environmental and operational covariates. Results of the modeling process suggested that high probabilities of null cell occurrence exist mainly in 2 environmentally different zones: the entrance to the Gulf of California, Mexico, and off the coast of Central America. The final statistical model suggested that operational variables (number of sets, type of fishing indicator) are more important to null cell occurrence than environmental factors (sea surface temperature, chlorophyll concentration, sea level anomaly, and El Niño events).
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| first_indexed | 2024-03-07T16:27:11Z |
| format | Article |
| id | doaj.art-fe274be8d28745a79335617479998c0a |
| institution | Directory Open Access Journal |
| issn | 0185-3880 2395-9053 |
| language | English |
| last_indexed | 2024-03-07T16:27:11Z |
| publishDate | 2020-03-01 |
| publisher | Universidad Autónoma de Baja California |
| record_format | Article |
| series | Ciencias Marinas |
| spelling | doaj.art-fe274be8d28745a79335617479998c0a2024-03-03T17:34:23ZengUniversidad Autónoma de Baja CaliforniaCiencias Marinas0185-38802395-90532020-03-0146110.7773/cm.v46i1.3026A spatially explicit model for predicting the probability of occurrence of zero-catch quadrants in the tuna purse seine fishery of the Eastern Tropical Pacific OceanEmigdio Marín-Enríquez0Xchel G Moreno-Sánchez1Francisco J Urcádiz-Cázares2Enrique Morales-Bojórquez3J Saúl Ramírez-Pérez4Universidad Autónoma de SinaloaCentro Interdisciplinario de Ciencias Marinas, IPNTecnológico Nacional de MéxicoCentro de Investigaciones Biológicas del NoroesteUniversidad Autónoma de Sinaloa Null purse seine sets (those in which the catch is zero) are common in every tuna fishery in the world. Current evidence suggests that different environmental factors can influence the occurrence of null sets. In this study, we used a long-term (2003–2015) database from the tuna purse seine fishery in the eastern Pacific Ocean to analyze the temporal and spatial variability of the occurrence of 1º × 1º quadrants where the retained tuna catch was zero (“null cells”). We fitted a logistic generalized additive model to predict the occurrence of null cells as a function of environmental and operational covariates. Results of the modeling process suggested that high probabilities of null cell occurrence exist mainly in 2 environmentally different zones: the entrance to the Gulf of California, Mexico, and off the coast of Central America. The final statistical model suggested that operational variables (number of sets, type of fishing indicator) are more important to null cell occurrence than environmental factors (sea surface temperature, chlorophyll concentration, sea level anomaly, and El Niño events). https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3026seinerstuna fisheriesremote sensingeastern Pacific Ocean |
| spellingShingle | Emigdio Marín-Enríquez Xchel G Moreno-Sánchez Francisco J Urcádiz-Cázares Enrique Morales-Bojórquez J Saúl Ramírez-Pérez A spatially explicit model for predicting the probability of occurrence of zero-catch quadrants in the tuna purse seine fishery of the Eastern Tropical Pacific Ocean Ciencias Marinas seiners tuna fisheries remote sensing eastern Pacific Ocean |
| title | A spatially explicit model for predicting the probability of occurrence of zero-catch quadrants in the tuna purse seine fishery of the Eastern Tropical Pacific Ocean |
| title_full | A spatially explicit model for predicting the probability of occurrence of zero-catch quadrants in the tuna purse seine fishery of the Eastern Tropical Pacific Ocean |
| title_fullStr | A spatially explicit model for predicting the probability of occurrence of zero-catch quadrants in the tuna purse seine fishery of the Eastern Tropical Pacific Ocean |
| title_full_unstemmed | A spatially explicit model for predicting the probability of occurrence of zero-catch quadrants in the tuna purse seine fishery of the Eastern Tropical Pacific Ocean |
| title_short | A spatially explicit model for predicting the probability of occurrence of zero-catch quadrants in the tuna purse seine fishery of the Eastern Tropical Pacific Ocean |
| title_sort | spatially explicit model for predicting the probability of occurrence of zero catch quadrants in the tuna purse seine fishery of the eastern tropical pacific ocean |
| topic | seiners tuna fisheries remote sensing eastern Pacific Ocean |
| url | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3026 |
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