Publications & Resources
The Laguna San Ignacio Ecosystem Science Program has published its findings in annual reports and publications since the early 1980s. We’ve archived all of our reports by topic for easy browsing, and some of our publications are available in English and/or Spanish.
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- “Skinny” or “Flaca” gray whales in Laguna San Ignacio 2019 (Reunion 2019) (2019)
- 2006 Annual Research Report for LSIESP (2006)
- 2008 Acoustic Research Program Review (2008)
- 2008 ANNUAL PROJECT FIELD RESEARCH REPORT (2008)
- 2014 Gray Whale Research Report (2014)
- 2017 Research Report for Laguna San Ignacio & Bahia Magdalena (2017)
- 2018 Gray Whale Abundance in Laguna San Ignacio & Bahia Magdalena – IWC-SC Report (2018)
- 2018 Research Report for Laguna San Ignacio & Bahia Magdalena, B.C.S., Mexico (2018)
- Acoustic Localization of gray whales in Laguna San Ignacio: Research Proposal (2007)
- ACOUSTIC RESEARCH 2013 WINTER SEASON REPORT (2013)
- Acoustic Research in Laguna San Ignacio – 2016 Report (2016)
- Acoustic Research in Laguna San Ignacio in 2007 (2007)
- Acoustic Research in Laguna San Ignacio: 2011 (2011)
- Acoustics & Behavior Field Report LSIESP 2019 (2018)
- Adipocyte cell area as energy reserve indicators in Gray Whales SMM Conf. Post (2022)
- Aerial Photogrammetry of gray whales in Laguna San Ignacio F. Rodriguez et al. (REUNION 2020) (2020)
- Age of Living Female Gray Whales from Photo-ID Data 2019 (2019)
- Alejandro Gomez-Gallardo et al.: Whale Watching in Laguna San Ignacio (2014)
- Alonso Logano, L.: Del Corredor La Paz – Loreto Por Los Mysticetos Durante La Temporada Fria 2008-2015 (2016)
- Alter et al. Pre-whaling genetic diversity and population ecology in eastern Pacific gray whales: insights from ancient DNA and stable isotopes (2012)
- Alter, et al.: Mitochondrial and Nuclear Genetic Variation Across Calving Lagoons in Eastern North Pacific Gray Whales (2008)
- Ambient acoustic environments in Laguna San Ignacio, B. C. S., Mexico: Kerri Seger (2013)
- American Cetacean Society: ABSTRACTS: Gray Whales and Climate Change: Sentinels of the North Pacific / Arctic Ecosystems (2008)
- Annual Field Research Report for Laguna San Ignacio: 2012 (2012)
- Annual Field Research Report for Winter 2011 (2011)
- Annual Field Research Report: 2010 (2010)
- Annual LSIESP Report for 2013 (2013)
- Annual Program Report 2014 (2014)
- Annual Program Report for 2015 (2015)
- Ballena Gris en Baja California Sur, Mexico (2010)
- Barlow & Clapham. A new birth-interval approach for estimating demographic parameters for humpback whales (1997)
- BIODIVERSIDAD (LAGUNA SAN IGNACIO) (2010)
- Biodiversity en La Laguna – School Presentation (2010)
- Birds of My Home – Ranulfo Mayoral (2011)
- Birds of My Home (R. Mayoral) (2011)
- Black turtles (Chelonia mydas) in San Ignacio lagoon, B.C.S., Mexico (2008)
- Body condition of gray whales in Laguna San Ignacio F. Ronzon C. et al. (REUNION 2020) (2020)
- Bottlenose Dolphin (Tursiops truncatus) Population Assessment in Laguna San Ignacio (Reunion 2019) (2019)
- Bottlenose Dolphin Research in Laguna San Ignacio: 2017 (2017)
- Bradford A. et al. Leaner leviathons: body condition variation in a critically endangered whale population. (2012)
- Caicero Garcia, V.E.: Habitat para Delphinus delphis y D. capensis en el Pacifico Oriental Tropical. Universidad Veracruzana (2015)
- Calderon & Riosmena: Seagrasses (Zostera) in Laguna San Ignacio (2011)
- Calderón Yáñez, E.A.: La condición corporal de las ballenas grises que visitaron Laguna San Ignacio: 2008-2011 (2014)
- Changes in gray whale phenology & distribution in Bering & Chukchi Seas 2022 (2022)
- Christiansen et al: Poor Body Condition Associated with Gray Whale Unusual Mortality Event (2021)
- Christiansen et al. Nov 2019 Preliminary findings: “Exploring nutritional stress…” as a factor in Gray Whale UME in 2019 (2019)
- Common Mammals of Laguna San Ignacio (2018)
- COMPARISON OF WINTER COUNTS OF GRAY WHALE IN LAGUNA SAN IGNACIO: 1978 TO 2008 (2008)
- Coyote Predation of Marine Bird Populations in Laguna San Ignacio (2010)
- Dahlheim, Fisher, and Shempp. 1984. Sound production by the gray whale and ambient noise levels in Laguna San Ignacio, Baja California Sur, Mexico. Pp. 511-541. In: Jones, M.L., Swartz, S.L., and Leatherwood,S., editors. The Gray Whale, Eschrichtius robustus, Academic Press, Orlando. (1984)
- Danemann, G. Birds of Laguna San Ignacio (1992)
- Danemann, Gustavo D.: Biologio Reproductiva Del Aguila Pescadora En Laguna San Ignacio, B.C.S., Mexico (1994)
- Danemann, Gustavo D.: Ictiofauna de laguna San Ignacio (1993)
- Dedina, Serge. 2000. Saving the Gray Whale; People, Politics, and Conservation in Baja California. University of Arizona Press, Tucson. 186 pp. (2000)
- Disentanglement of gray whale calf in Laguna San Ignacio: 2022 (2022)
- Disentanglement Workshop January 2014 (2014)
- Dual-Drone Acoustic Behavior Studies of Gray whales in Laguna San Ignacio (REUNION 2020) (2020)
- Ecosystem Science Report for Laguna San Ignacio – 2007 (2007)
- Eelgrass (Zostera marina) in Laguna San Ignacio (2009)
- EELGRASS Zostera marina CONSERVATION IN LAGUNA SAN IGNACIO, BAJA CALIFORNIA SUR (2012)
- Eguchi et al.: Abundance of ENP Gray Whales 2021/2022 (2022)
- Eguchi et al.: ENP Gray Whale Calf Production 1994-2022 (2022)
- Estimación de la edad de las ballenas grises con datos de foto-identificación- 2018 – SOMEMMA XXXVI (2018)
- Estimating Lactation Cost in Gray Whales using AUV-Drones – SOMEMMA XXXVI (2018)
- Evaluating Gray Whale Body & Reproductive Condition in Laguna San Ignacio (Reunion 2019) (2019)
- Field Report for February 2021 (2021)
- Field Report for January 2021 (2021)
- FLYER: LSIESP Vision & Mission (2011)
- Frouin-Mouy et al., 2020 Dual Drones to study gray whale behavior and vocalizations (2020)
- Gómez Gallardo U., A.: Uso de la Laguna San Ignacio por la ballena gris Eschrichtius robustus, durante las temporadas invernales de 1996 y 1997 (1998)
- Gomez-Gallardo U., A. et al.: La observación turística de ballenas en laguna San Ignacio: de México para el mundo (2014)
- Gómez-Gallardo U., A.: Cambios en la Distribución y la Abundancia de Ballena gris en Laguna San Ignacio, B.C.S. México: 1978-2009. (2010)
- González Carrillo, S.: Filopatría de la Ballena Gris en La Laguna San Ignacio: 1996-2005. (2008)
- Gray Whale Abundance in Laguna San Ignacio & Bahia Magdalena 2019 (IWC SC paper) (2019)
- Gray Whale Abundance in Laguna San Ignacio & Bahia Magdalena 2019 (Reunion 2019) (2019)
- Gray whale abundance in Laguna San Ignacio & Bahia Magdalena, B.C.S., Mexico: 2022 (2022)
- Gray whale abundance in Laguna San Ignacio & Bahia Magdalena: 2023 SC/69A/CMP/21 (2023)
- Gray whale abundance in Laguna San Ignacio and Bahia Magdalena (REUNION 2020) (2020)
- Gray whale abundance in LSI & Bahia Magdalena 2022 (SC/68D/CMP/07) (2022)
- Gray Whale Abundance Surveys 2006-2019 (2019)
- Gray whale aerial monitoring with UAVs: 2023 (2023)
- Gray Whale body condition assessment 2018-2020 SMM Conf. Poster (2022)
- Gray Whale Body Condition in Laguna San Ignacio 2019 (IWC SC paper) (2019)
- Gray whale body condition in Laguna San Ignacio: 2022 (2022)
- Gray whale body condition in Laguna San Ignacio: 2023 UPDATE SC/69A/CMP/16 (2023)
- Gray whale body condition in LSI: 2022 (SC/68D/CMP/08) (2022)
- Gray Whale Calf Disentanglement Report: March 2014 (2014)
- Gray Whale Calving Intervals – Sergio Martinez (2014)
- Gray Whale Calving Intervals in Laguna San Ignacio: 2019 (2019)
- Gray whale monitoring in Bahia Magdalena lagoon complex, 2023 (2023)
- Gray Whale Movements Between Eastern & Western North Pacific 2019 (IWC SC paper) (2019)
- Gray Whale Research Report: 2010 (2010)
- Gray Whale Stranding Events in Mexico 2020 (2020)
- Gray Whale Stranding in Mexico (SC/68D/CMP/10) 2022 (2022)
- Gray Whale Stranding Records in Mexico 2019 (IWC SC paper) (2019)
- Gray whale stranding records in Mexico: 2022 (2022)
- Gray Whale strandings in Mexico during UME (2019-2022) SMM Conf. Post. (2022)
- Gray whale strandings in Mexico:2023. SC/69A/CMP/17 (2023)
- Gray Whale Studies in Laguna San Ignacio: 2007 (2007)
- Gray Whale’s Body Condition in Mexico 2020 (2020)
- Gray Whales in Laguna San Ignacio & Bahia Magdalena: 2012 (2012)
- Grey whale monitoring in Laguna San Ignacio, winter 2023 (2023)
- Grupo Tortuguero: Programa de Turismo para l a Conservación de Pro Peninsula y el Grupo Tortuguero de las Californias AC. (2007)
- How old are gray whales from Laguna San Ignacio (2019)? (2019)
- Huntington et al: Transformation of Pacific Arctic is underway (2020)
- Informe Ballena Gris – Laguna San Ignacio 2020 (2020)
- Informe Ballena Gris 2020 Bahia Magdalena (2020)
- Informe de Bahía Magdalena: 2019 (2019)
- Informe de Laguna San Ignacio: 2019 (2019)
- Informe de las actividades del Monitoreo de Ballena gris 2014-2015 (2015)
- Informe de las actividates del monitoreo de la ballena gris (Spanish) (2017)
- Informe del Monitoreo de la Ballena Gris en Laguna San Ignacio: 2018 (2018)
- Invertebrates & Fish of Laguna San Ignacio (Jones & Swartz) (1982)
- Investigación del Monitoreo de Ballena Gris en Bahía Magdalena: 2018 (2018)
- IWC Sci. Comm. Report.: SC/66a/BRG21 (2015)
- IWC-SC Gray Whale Workshop Report 65b May 2014 (2014)
- IWC-SC Report on gray whale abundance in Laguna San Ignacio: 2007-2012 (2012)
- IWC/SC Report: 2007 GRAY WHALE STUDIES AT LAGUNA SAN IGNACIO – SC/59/BRG39 (2007)
- IWC/SC Report: Abundance of Gray Whales in Laguna San Igancio: 2011 (2011)
- IWC/SC Report: Gray whales in Bahia Magdalena: 2012 (2012)
- IWC/SC Report: Historical Gray Whale Abundance in Lagunas San Ignacio & Ojo de Liebre (2010)
- IWC/SC Report: Photographic Identification Comparison of Western & Mexican Gray Whales: SC/64/BRG13 (2012)
- Jones, M.L. Bathymetry & benthic surveys, & primary production in Laguna San Ignacio, B.C.S., Mexico (1981)
- Jones, M.L. 1990 Reproductive Cycle in Gray Whales Based on Photographic Resightings of Females on the Breeding Grounds from 1977-1982 (1990)
- Jones, M.L., Swartz, S.L., and Leatherwood,S., editors. 1984. The Gray Whale, Eschrichtius robustus, Academic Press, Orlando. 610 pp. (1984)
- Koch y Mancini: Una mortalidad masiva de tortugas prieta (Chelonia mydas) en Laguna San Ignacio. UABCS, La Paz, Baja California Sur. (2008)
- LA BALLENA GRIS EN LAGUNA SAN IGNACIO B.C.S. MÉXICO, DURANTE LAS TEMPORADAS INVERNALES 2008 Y 2009 (2008)
- La ballena gris en laguna San Ignacio Baja California, Sur Mexico: 1978 – 2015 (2015)
- La Ballena Gris en Laguna San Ignacio: 2011 Report to WWF/Telcel (2011)
- Lagoon Time Gray Whale Guide (2014)
- LAGOON TIME: Guide to history and gray whales of Laguna San Ignacio (2014)
- Laguna San Ignacio Bird List (G. Dana) (1982)
- Laguna San Ignacio Birds list (Reitherman & Storrer) (2011)
- López Arzate, D.C.: Cambios en la estructura del Casnto de la Ballena Jorobada en Los Cabos, Baja California Sur, México. UNAM. (2015)
- Lopez-Urbán, A. et al. Structure of gray whale calls of San Ignacio lagoon and their distribution in the water column. JASA 130,2357; http://dx.doi.org/10.1121/1.3654446. (2011)
- LSI & BM Gray WHale Report to IWC-SC – SC/67A/CMP/11 (2017)
- LSI & BM Gray Whale Research IWC-SC – SC/66b/BRG19 (2016)
- LSI Gray Whale Survey Database 1978-2015 (2015)
- LSIESP 2007 Accomplishments & 2008 Work Plan (2007)
- LSIESP Annual Report for 2022 (2022)
- LSIESP Annual Research Report for 2019 (2019)
- LSIESP Annual Research Report for 2020 (2020)
- LSIESP Community Outreach & Communication (2010)
- LSIESP Research Presentation for Reserva de la Biosfera El Vizcaino – 2018 (2018)
- Martínez Aguilar, S.: Un modelo de abundancia absoluta de la Ballena Jorobada en las Islas del Archipiélago de Revillagigedo, México (2007)
- Martinez et al: Gray whale stranding records in Mexico: 2021 (2021)
- Martinez et al: Informe de las actividades del monitoreo de la ballena gris en Laguna San Ignacio: 2021 (2021)
- Martinez et al. Gray whale strandings on Mexico 2020 (IWC/SC/68B/CMP 13) (2020)
- Martínez S.A.: Identidad Poblacional de la Ballena Gris en la Península de Baja California, México. UABCS (2016)
- Martinez S.A.: Investigación de la ballena gris la laguna San Ignacio, BCS, México: 2022 (2022)
- Martínez, et al. (In Press) The Age of Living Gray Whales Estimated from Photographic Identification Data. (2016)
- Mate, B.R., et al. Critically endangered western gray whales migrate to eastern North Pacific (2015)
- Mexican Marine Mammal Society (SOMEMMA) 2023 Abstracts (2023)
- Misterios: Gray Whales of Laguna San Ignacio (2011)
- Moore, et al.: Marine Mammals as Ecosystem Sentinels (2008)
- MOVEMENTS OF GRAY WHALES AMONG THE CALVING AND BREEDING LAGOONS IN THE BAJA CALIFORNIA PENINSULA (2013)
- Najera, M.C.: Analisis comparativeo de la abundancia relativa de la ballena gris en las lagunas de B.C.S. Mexico, en repuesta a la variabilidad climatical de gran escala. (2009)
- NOAA ENP gray whale Unusual Mortality Event Update-2022 (2022)
- NOAA Gray whale UME Update: 2019-2022 SMM Conf.Post. (2022)
- NUMBERS OF GRAY WHALES IN LAGUNA SAN IGNACIO AND LAGUNA OJO DE LIEBRE: 2007-2013 (2013)
- Olavarrieta, T.: Feeding habits of the Bryde’s whale (Balaenoptera edeni) in the Gulf of California (2012)
- Old Timers return to Laguna San Ignacio: Minimum age estimations: 2022 (2022)
- Passive Acoustics Research in Laguna San Ignacio:2010 (2010)
- Perryman et al. Gray whale calf production 1994-2000: Are observed fluctuations related to changes in seasonal sea ice cover? (2002)
- Perryman et al. IWC/SC/64/BRG18: Anomalous 2012 spring ice cover in Bering Sea: predicted impacts on ENP gray whales (2012)
- Perryman et al. IWC/SC/M11/AWMP3 Surveys of Northbound gray whale calves at Pt. Piedras Blancas: 2001-2010 (2011)
- Perryman et al. Relationship between seasonal sea-ice and calf production in ENP gray whales (2000)
- PHOTOGRAPHIC COMPARISON OF THE RUSSIAN & MEXICAN GRAY WHALE CATALOGUES. (2013)
- Plants of Laguna San Ignacio (2018)
- Ponce, D., Thode, A., & Guerrera, M. Relationship between visual counts & call detections rates of gray whales in Laguna San Ignacio, Mexico. JASA 131(4), 2700-2713; http://dx.doi.org/10.1121/1.3689851. (2012)
- Program Report for Laguna San Ignacio & Bahia Magdalena (2016)
- Reduction of Gray Whale Calves in Bahia Magdalena: 2016-2021 SMM Conf. (2022)
- Residency & Abundance of Bottlenose Dolphin in Laguna San Ignacio 2017 SOMEMMA XXXVI (2018)
- Rhodolith/Maerl & Seagrass in Laguna San Ignacio (2013)
- Robles, J.M.: Birth interval of the gray whale in Laguna San Ignacio: 2005 to 2011 (2012)
- Rodriguez Alvarez, M.: Changes in the distribution of gray whale mothers with calves in Laguna San Ignacio during three periods: 1978-82, 1996-00, and 2007-11 (2012)
- Rodriguez, Fabian M. : Ecologia Poblacional del Tursion (Tursiops truncatus) en Laguna San Ignacio 2009-2018 (2018)
- Ronzon et al. Gray whale body condition in Laguna San Ignacio 2020 (IWC/SC/68B/CMP14) (2020)
- Ronzon-Contreras et al: Gray whales body condition in Laguna San Ignacio: 2021 (2021)
- Rosales-Nanduca, H.: Macroecology of marine mammal species in the Mexican Pacific Ocean: diversity and distribution (2011)
- Rugh, Et al.: Eastern North Pacific gray whale abundance in the winter of 2006-2007: IWC/SC/60/BRG6 (2007)
- Salazar, Gabriela: Asociaciones y tamano de los tursiones (Tursiops truncatus) en Laguna San Ignacio (2018)
- Salvadeo et Al. 2015. The effect of climate variability on gray whales in their wintering areas. (2012)
- Satellite Tagging of Gray Whale at San Jose del Cabo, B.C.S., Mexico 2017 (2017)
- Sealions in Laguna San Ignacio, R. Mayoral (REUNION 2020) (2020)
- Sealions on Isla Pelicanos en Laguna San Ignacio: 2016 (2017)
- Seaweed and seagrasses inventory of Laguna de San Ignacio, BCS. (2014)
- Seger, K.D. et al. The ambient acoustic environment in Laguna San Ignacio, Baja California Sur, Mexico. JASA (2015)
- Seger, K.D.: Ambient acoustic environments and cetacean signals: baseline studies from humpback whale and gray whale breeding grounds (2016)
- Seger, Kerri D. Ambient Acoustic Environments and Cetacean Signals: Baseline Studies from Humpback Whale and Gray Whale Breeding Grounds. University of California, San Diego, California. (2016)
- Sheyna Wisdom. 2000. Development of Sound Production in the Gray Whale (Eschrichtius robustus). Master of Science Thesis, University of San Diego, San Diego, California. 260 pp. (2000)
- Silber et al: Gray whales and vessel traffic in the North Pacific (2021)
- Siqueiros et al. ProThrombolitos en Laguna San Ignacio, B.C.S., Mexico (2008)
- Sound Production by Gray Whale Demographic Groups – Anaid Lopez U. (2011)
- Stewart & Weller: Abundance of Eastern North Pacific gray whales 2019-2020 NOAA Tech Mem (2021) (2021)
- Stewart & Weller: Gray Whale Population Abundance 2019-2020 (2021)
- Sumich, J.: E. robustus; the biology and human history of gray whales. Whale Cove Marine Education, Corvallis, Oregon, U.S.A. (2014)
- Swartz & Jones: Photographic Analysis of Eastern North Pacific Gray Whale Movements within the Breeding Grounds of Baja California, Sur, Mexico (1982)
- Swartz & Jones: Laguna San Ignacio – One of North America’s Unique Marine Ecosystems, ACS Whale Watcher (2010)
- Swartz & Jones. The gray whales (Eschrichtius robustus)- Overview, Mar. Mammal. Encyclopedia 3rd Edit. (2016)
- Swartz & Urban: Ecosystem Approach for Monitoring Laguna San Ignacio (2008)
- Swartz et al: Annual gray whale research report for 2021 (2021)
- Swartz et al.: Gray whale sex, reproductive behavior, and social strategies (2022)
- Swartz, et al. Gray whale Eschrichtius robustus population and stock identity (2006)
- Swartz, S.L. & Jones, M.L. Gray whale calf production and mortality in the winter range (1983)
- Swartz, S.L.: Changes in the Eastern North Pacific Gray whale Population Status: Monitoring a “Sentential” Population (2007)
- Swartz, S.L.: Gray whale (Eschrichtius robustus) migratory, social, and breeding behavior. (1986)
- Swartz, S.L.: Gray whales’ responses to climate change (2008)
- Swartz, S.L.: Review of the family Eschrichtiidae (Gray Whale) (2013)
- Troyo Vega, B.: Permanencia y número de Ballenas Grises que visitaron la Laguna Ojo de Liebre, Baja California Sur, México en los inviernos del 2001 y 2002 (2006)
- Update on ENP gray whale 2019-2022 UME: 2023 update (NOAA) (2023)
- Update on ENP gray whale 2019-2022 Unusual Mortality Event (2022)
- Urban & Swartz: An Ecosystem Approach for Scientific Monitoring and Assessment of the The Laguna San Ignacio Wetlands Complex (2007)
- Urban et al: Gray whale abundance in laguna San Ignacio & Bahia Magdalena San Ignacio, B.C.S., Mexico: 2021 (2021)
- Urban et al. 2019: Movements of Gray Whales Between Eastern & Western North Pacific (2019)
- Urban et al. Abundance and Mortality of Gray Whales at Laguna San Ignacio, Mexico, during the 1997-1998 El Niño, and the 1998-1999 La Niña (2002)
- Urban et al. Gray whale abundance in Lagunas San Ignacio and Bahia Magdalena 2020 (IWC/SC/68B/CMP 09) (2020)
- Urban et al. Gray whales with loss of flukes adapt and survive (2004)
- Urban et al. IWC/SC/48/AS19: REPORT OF THE 1996 GRAY WHALE STUDIES AT LAGUNA SAN IGNACIO, B.C.S., MEXICO. (1996)
- Urban et al. IWC/SC/65a/BRG04. Photographic comparison of Russian and Mexican gray whale photo-identification catalogues. (2012)
- Urban et al. Review of gray whales in their wintering grounds in Mexican waters (2007)
- Urban, A.L.: Gray whale calls of two demographic groups: solitaries and mother-calf pairs (2014)
- Urban, L. A.: .Sonidos y conducta de la Ballena Gris en su área de crianza y reproducción de la Laguna San Ignacio, B.C.S., México (2010)
- Viloria-Gomora et al: Reporte de investigacion del monitoreo de ballena gris in Bahia Magdalena, B.C.S., Mexico: 2021 (2021)
- Weller et al. Movements of gray whales between western and eastern North Pacific (2012)
- Western gray whale migrations to Mexico: 2022 (2022)
- Western Gray Whales in Baja (SC/68D/CMP/09) 2022 (2022)
- Western Gray Whales in Baja California: Jorge Urban R. (2014)
- Winter 2012 Passive Acoustics Report for Laguna San Ignacio (2012)
- Winter Birds of Laguna San Ignacio (2018)
- Yasue, M., et al.: Epibenthic & Benthic Environments in Laguna San Ignacio (2007)