Attention to Strandings and Rescues
INFORMATION ABOUT STRANDING
A stranding consists of an event in which a marine mammal (or more than one) reaches land, dead or alive, or is in shallow water, being unable to return to deeper waters by itself.
Why do they strand?
*Diseases
* Disorientation near the coast
* Influence of man
(fisheries, noise, sonars)
* Persecution by predators
* Other factors
Types of strandings
-Live: of the cases we have attended to, around 40% are living individuals. In most of the cases, the condition and cause of stranding make recovery difficult, despite the efforts.
-Dead: depending on their state of decomposition, necropsy, sampling or only registration and burial are performed
-Individual: 1 individual or a mom-calf pair
-Massive: more than 1 individual
If you find a stranding, you should consider the following:
* It is best to stay away and not try to touch the stranded individual.
* Live animals can hurt you, as they are stressed by their condition; They could also transmit diseases to you.
* Dead animals represent a health risk due to the state in which they are, for example transmission of infections.
What to do?
* Take photographs, if possible, of full body, dorsal fin and head at various angles. Try to register the position, if it is not possible, try to look for points that can make a quickly localization of the area. Take as much information as that you can, you could be the only source of information.
* Contact PROFEPA (Tel. 1220787), at 911 so that they can make the contact or directly with us at the telephones: 6121556609 or 6123482155
Recent cases attended by MMARES, AC / Stranding Network of La Paz
For recent cases and news, visit our Facebook and blog (Spanish)
2014-2018
Striped dolphin, 2014
Attention of a striped dolphin ( Stenella coeruleoalba )
Pygmy killer whales, 2014
Attention to the mass stranding, sampling and burial of pygmy killer whales ( Pheresa attenuata )
Short-finned pilot whale, 2015
Sampling and burial of a short-finned pilot whale (Globicephala macrorhynchus)
Common dolphin, 2015
Sampling and burial of a common dolphin ( Delphinus sp.)
Guadalupe fur seal, 2015
Attention of a Guadalupe fur seal ( Arctocephalus townsendi )
Risso's dolphin, 2015
Attention of a Risso's dolphin ( Grampus griseus )
Dwarf sperm whale, 2015
Sampling and burial of a dwarf sperm whale ( Kogia sima )
Rough-toothed dolphin, 2015
Attention of a rough-toothed dolphin ( Steno bredanensis )
Rough-toothed dolphins, 2015
Sampling and burial of rough-toothed dolphins ( Steno bredanensis )
California sea lion, 2015
Sampling and burial of a California sea lion ( Zalophus californianus )
Risso's dolphin, 2016
Attention of a Risso's dolphin ( Grampus griseus )
Spinner dolphin, 2016
Attention of a spinner dolphin ( Stenella longirostris )
Bryde's whale, 2016
Attention of a Bryde's whale ( Balaenoptera edeni )
Common dolphin, 2017
Attention of a common dolphin ( Delphinus sp. )
Sperm whale, 2017
Attention of a sperm whale ( Physeter macrocephalus )
Striped dolphin, 2017
Attention of a striped dolphin ( Stenella coeruleoalba )
Short-finned pilot whale, 2017
Sampling and burial of a short-finned pilot whale ( Globicephala macrorhynchus )
Humpback whale, 2018
Humpback whale desentanglement ( Megaptera novaeangliae)
Striped dolphin, 2018
Attention of a striped dolphin ( Stenella coeruleoalba )
California sea lion, 2018
Attention from a California sea lion ( Zalophus californianus )
Common dolphins, 2018
Attention to the massive stranding of common dolphins ( Delphinus sp .) With subsequent sampling and burial.
Common dolphin, 2018
Registration and burial of a common dolphin ( Delphinus sp.)
Bottlenose dolphin, 2018
Sampling and burial of a bottlenose dolphin ( Tursiops truncatus )
Scientific Articles and Dissemination
2016
First Record of Pygmy Killer Whales (Feresa attenuata) in the Gulf of California, Mexico: Diet Inferences and Probable Relation with Warm Conditions During 2014
Fernando R. Elorriaga-Verplancken, Hiram Rosales-Nanduca, Aurora Paniagua-Mendoza, Sergio Martínez-Aguilar, Ana K. Nader-Valencia, Roberto Robles-Hernández, Francisco Gómez-Díaz, and Jorge Urbán R. Aquatic Mammals 2016, 42(1), 20-26, DOI 10.1578/AM.42.1.2016.20
2018
Short NoteSeasonality and Potential Foraging Grounds of Migratory California Sea Lions from La Paz Bay, Southern Gulf of California, Mexico.
Fernando R. Elorriaga-Verplancken, Julieta Sandoval-Sierra, Aurora Paniagua-Mendoza, and Roberto Robles-Hernández. Aquatic Mammals 2018, 44(1), 56-61, DOI 10.1578/AM.44.1.2018.56
2019
Records of whalesuckers Remora australis on Short-beaked Common Dolphins Delphinus delphis in the Gulf of California, Mexico.
Becerril-García, E., Rosales-Nanduca, H., Paniagua-Mendoza, A., Robles-Hernández, R., Elorriaga-Verplancken, F. R. Aquatic Mammals 2019, 45(3), 299-302, DOI 10.1578/AM.45.3.2019.299
2020
A Southern Elephant Seal (Mirounga leonina) in the Gulf of California: Genetic Confirmation of the Northernmost Record to Date.
Elorriaga-Verplancken, F.R., Anidia Blanco-Jarvio, Claudia A. Silva-Segundo, Aurora Paniagua-Mendoza, Hiram Rosales-Nanduca, Roberto Robles-Hernandez, Sandra Mote-Herrera, Maria Jose Amador-Capitanachi, and Julieta Sandoval-Sierra. Aquatic Mammals 2020, 46(2): 137-145. DOI:
2020
Stable isotope assessment of a mass stranding of short-beaked common dolphins (Delphinus delphis delphis) reveals their provenance: Integrating knowledge of a little-known odontocete in the Gulf of California
Fernando R. Elorriaga-Verplancken, Aurora Paniagua-Mendoza, Anidia Blanco-Jarvio, Erica Carone, Roberto Robles-Hernández, Claudia Ballínez-Ambriz, Hiram Rosales-Nanduca. Regional Studies in Marine Science. 40 101503. DOI:
CURSOS
COURSES
2018
Attention to stranding and taking samples for scientific analysis
Course given by MMARES, AC, UABCS-Pesquerías, Museo de la Ballena y Ciencias del Mar.
August 31, 2018. UABCS-Pichilingue Unit
2019
Training of volunteers and interested parties in stranding of marine megafauna in La Paz, BCS and surrounding areas
Training course given by PROFEPA, MMARES, AC, UABCS-Pesquerías, Museo de la Ballena y Ciencias del Mar, Centro de Rescate Museo de la Ballena.
1 October 2019. UABCS-Unit Pichilingue.
2019
Marine animal rescue workshop
Training course given by the Centro de Rescate Museo de la Ballena, PROFEPA, MMARES, AC, UABCS-Pesquerías, Museo de la Ballena y Ciencias del Mar
7 October 2019. UABCS-Unit Pichilingue.
2020
Theoretical-Practical Course on Marine Mammals
Course given by Dr. Dolphin, La Fauna Vive, Delphinus and MMARES, AC
February 28-29, 2020. SPLASH Water Park, Silao, Gto.
2020
Dissemination of Science Project
Online talks with expert researchers on different topics. If you missed them, go to our YouTube channel (Click on the photo, all of them are in Spanish).
2021
Sponsor of the XVII International Meeting for the Study of Marine Mammals organized by the Mexican Society of Marine Mammals
The Mexican Society of Marine Mammalogy A.C. organizes the XXXVII International Meeting for the study of Marine Mammals to be held from May 2 to 6, 2021 in virtual format (somemma.mx).
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Encabezado 1
ATTENTION TO MARINE MAMMAL STRANDINGS
WHAT TO DO IN A EVENT? (Spanish)
GUIDE TO REPORTING MARINE MAMMAL STRANDINGS (Spanish)
IDENTIFICATION GUIDE FOR MARINE MAMMALS COMMONLY STRAND IN THE GULF OF CALIFORNIA (Spanish)
