Ecological monitoring in reefs of the Gulf of California and Pacific Ocean

Mascareñas-Osorio, Ismael; Aburto-Oropeza, Octavio; Sanchez Ortiz, Carlos (2018). Ecological monitoring in reefs of the Gulf of California and Pacific Ocean. In dataMares: Ecological Monitoring. UC San Diego Library Digital Collections. https://doi.org/10.6075/J0KH0KJ3

The ecological data of fish and invertebrates were collected under the leadership of the Centro para la Biodiversidad Marina y la Conservación, A.C. (CBMC) as part of Gulf of California Marine Program's long-term ecological monitoring program. This effort includes researchers and students from the Universidad Autónoma de Baja California Sur in La Paz, BCS. This monitoring program has been implemented since 1998, making it the longest-running monitoring effort in the Gulf of California. The data included in this data base was collected in the Bahía de los Ángeles (2008, 2009, 2010, 2016), the Región de las Grandes Islas (2008, 2009, 2010 and 2016) in Baja California; Santa Rosalia (2009, 2010, 2016, 2021, 2022), San Basilio (2019, 2021-2022), Loreto (1998-2019, 2021-2022), El Corredor (2013-2019), La Paz (1998-2019,2022), La Ventana (2013-2018), Cabo Pulmo (1999, 2009-2022), and Cabo San Lucas (1998-2000, 2009-2019, 2021-2022) in Baja California Sur; Islas Marías (2010, 2018), Bahia Banderas (2013), Nayarit; Revillagigedo (2006, 2016, 2017,2021), Colima; Ixtapa Zihuatanejo (2017), Guerrero; Huatulco (2016), Oaxaca. There are 216 species of fish and 244 species of invertebrates included in this inventory.

This database is embargoed.

This citation was formerly: Mascareñas-Osorio, Ismael; Aburto Oropeza, Octavio; Sanchez Ortiz, Carlos (2018). Ecological monitoring of Gulf of California and Pacific coast. In dataMares: Ecological Monitoring. UC San Diego Library Digital Collections. https://doi.org/10.6075/J0KH0KJ3. The citation was revised on 2019-04-16 to reflect an update to the title.

Contact information: Santiago Domínguez Sanchez, santiago@gocmarineprogram.org

• 1998 to 2022

• 2018

• Mascareñas-Osorio, Ismael

• Aburto-Oropeza, Octavio
• Mascareñas-Osorio, Ismael
• Sanchez Ortiz, Carlos

• Domínguez-Sánchez, Santiago

• Centro para la Biodiversidad Marina y la Conservación (Center for Marine Biodiversity and Conservation)

Data are collected using transect belt methods, using the standardized methodology of the Long-Term Ecological Monitoring Program designed by the Gulf of California Marine Program. Divers use SCUBA diving in rocky reefs and use linear transects (fish = 50m x 5m; invertebrates = 30m x 1m) as a guide.
Fish: Transects were placed at 20 and 5 meters depth. If the sites monitored does not have a rocky bottom at more than 5 meters, only one depth is surveyed. Fishes are visually counted over a belt transect with a reference area of 50m x 5m: first swim over transect, larger demersal fishes are prioritized, whereas on the second swim the focus is on cryptic species. Therefore, the final estimation area is of 250 m squared. Fish sizes are also visually estimated, this measures is then combined to bibliographic data to estimate biomass.
Invertebrates: Transects were placed at 20 and 5 meters depth. Invertebrates are visually counted over a belt transect with a reference area of 30m x 1m: one swim over transect counting epibenthic macroinvertebrates (larger than 2 cm) and recording estimated size.

Software used: Microsoft Excel. Coordinate system: WGS 1984.

• California, Gulf of (Mexico)
• Mexico

• Environmental monitoring
• Fish
• Invertebrates
• Rocky reef

• data

• English
• Spanish; Castilian

Doi: https://doi.org/10.6075/J0KH0KJ3

Interactive viewer

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• Alfredo Girón-Nava, Andrew F. Johnson, Octavio Aburto-Oropeza (2014): Riqueza específica, densidad y biomasa como indicadores de salud. DataMares. InteractiveResource. https://doi.org/10.13022/M38G6Z
• Alfredo Girón-Nava, Octavio Aburto-Oropeza, Andrew F. Johnson (2014): Índice de Salud. DataMares. InteractiveResource. https://doi.org/10.13022/M35P4B
• Arturo Ramirez-Valdez, Andrew F. Johnson, Octavio Aburto-Oropeza, Alfredo Giron-Nava (2014): Mexico’s reefs and underwater data. DataMares. InteractiveResource. https://doi.org/10.13022/M33W21
• Arturo Ramírez-Valdez, Andrew F. Johnson, Octavio Aburto-Oropeza, Alfredo Girón-Nava (2014): Arrecifes de México y los datos bajo el agua. DataMares. InteractiveResource. https://doi.org/10.13022/M3201C
• Ismael Mascareñas Osorio, Alfredo Girón Nava, Amy Hudson Weaver, Benigno Guerrero, Carlos Sánchez y Octavio Aburto Oropeza (2015): Recovering fishery resources in the Gulf of California. DataMares. InteractiveResource. https://doi.org/10.13022/M3D304
• Ismael Mascareñas Osorio, Alfredo Girón Nava, Amy Hudson Weaver, Benigno Guerrero, Carlos Sánchez y Octavio Aburto Oropeza (2015): Recuperando los recursos pesqueros del Golfo de California. DataMares. InteractiveResource. https://doi.org/10.13022/M3S889
• José Cota-Nieto, Tomás Plomozo, Isaí Dominguez-Guerrero, Matthew Costa, Octavio Aburto-Oropeza (2014): Snapper Habitat in Gulf of California Mangrove Forests. DataMares. InteractiveResource. https://doi.org/10.13022/M3CC77
• José Cota-Nieto, Tomás Plomozo, Isaí Domínguez-Guerrero, Matthew Costa, Octavio Aburto-Oropeza (2014): Hábitat de pargos en los bosques de manglar del Golfo de California. DataMares. InteractiveResource. https://doi.org/10.13022/M39G68

Described by

• Rodriguez, A.S, Báez, M, Aburto-Oropeza, O., Arango, G., Masacareñas-Osorio, I., Erisman, B. (2014). Protocolo de Monitoreo: Para Ambientes Marinos Costeros. UC San Diego: Aburto Lab. Retrieved from https://escholarship.org/uc/item/23f1404c

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2023-06-08