Tag: California

Vaquita Porpoise

Vaquita

Found, only in the Gulf of California in Baja California, Mexico. Males grow to 140cm and females grow to 150cm.

It is critically endangered, largely as a result of many getting caught in gillnets which result in bycatch. It is clear that these nets should be banned but it is happening too slow.

Its name comes from Spanish and means little cow. It can clearly be identified from the other porpoises which share its range.

In 2022, it was estimated that just 10 remained in the wild, and unfortunately they continue to be caught by mistake. Unfortunately, the future of this species is not good.

Grey whale

A grey whale breaching: An incredible sight, and the sound travels a very long way in water

Grey whale

The gray whale (other names include grey whale, gray back whale, Pacific gray whale, Korean gray whale, or California gray whale), is a baleen whale that migrates between feeding and breeding grounds yearly. They can reach 14m in length and 41 tonnes. It is found in North pacific – with the Northeast Pacific (American population) and the Northwest Pacific (Asian population) that is endangered. The northern population has been extinct for a long time.

Sea-Lions

An encounter with almost any wild animal can be something you remember for years. This sealion that came out of the sea on the beach in New Zealand is no different

Sea-lions

There are 6 living species of sea-lion, and 1 extinct. As the interest in these species grows and the links become unwieldy i will split out the separate species, but for the time being I will just have one page for them all – help it to be necessary to split them as soon as possible. 

Sea-lions are pinnipeds with external ear flaps, long fore-flippers, the ability to walk on all fours, short and thick hair, and a big chest and belly. The sea-lions the 6 living species shown below (the Japanese sea-lion is extinct) in five genera. Their range extends from the subarctic to tropical waters of the global ocean in both the Northern and Southern Hemispheres, with the notable exception of the northern Atlantic Ocean. They have an average lifespan of 20–30 years.[2] A male California sea-lion weighs on average about 300 kg (660 lb) and is about 2.4 m (8 ft) long, while the female sea-lion weighs 100 kg (220 lb) and is 1.8 m (6 ft) long. The largest sea-lions are Steller’s sea-lions, which can weigh 1,000 kg (2,200 lb) and grow to a length of 3.0 m (10 ft). Sea-lions consume large quantities of food at a time and are known to eat about 5–8% of their body weight (about 6.8–15.9 kg (15–35 lb)) at a single feeding. Sea-lions can move around 16 knots (30 km/h; 18 mph) in water and at their fastest they can reach a speed of about 30 knots (56 km/h; 35 mph).[3] Three species, the Australian sea-lion, the Galápagos sea-lion and the New Zealand sea-lion, are listed as endangered.

Steller sea-lion
Australian sea-lion
California sea-lion
Galápagos sea-lion
New Zealand sea-lion
South American sea-lion

Steller Sea-lion are found on the land of North America and Asia that circle the north pole (map below, credit NOAA). 

They are predated by killer whales, though sleeper sharks and great whites sometimes take young. They eat a variety of foods, include various fish species, as well as octopus and squid. They are fast swimmers, capable of diving to 1500feet, and staying under for 16 minutes

During breeding season, males fight to control a stretch of beach, and females move freely to the place they favour. 

Status: population has fallen 70-80% since the 1970s and so are listed as endangered, around 46,000 individuals, though in recent years, the Eastern population has grown at around 3% a year (in 2013 this lead to its removal from the US endangered species list)

 

Australian Sea-lion is the only endemic pinniped found in Australia.

They can make a variety of calls, with mothers and young able to pick up each others call in the chaos of a breeding beach. There are currently 66 recognized breeding beaches, though 42% of pups are bred on just 4 of these beaches.

While rare, a bite can require hospitalisation. In both the 1930s and 1960s they were recorded as feeding on little penguins, and this still happens today. Other food includes a variety of fish and even small sharks, in turn, they are hunted by great white sharks and killer whale (orca).

Population was 14370 in 2010 though by 2014 it had fallen to just 6500 mature individuals, though current estimates are 11,200 suggesting a rebound. Still it is clear that they need particular efforts for their conservation. Despite their (relatively) close ranges, the Australian and New Zealand sea-lions do not appear to be closely related. They are considered vulnerable.

California Sea-lion Are found on the west coast of north America. On this map, the navy blue marks the breeding rance, while the light blue shows the total range that they can be found in. It should be noted, that previously the Japanese and Galapagos sealion were both considered subspecies of the Californian species, but no longer. They can stay healthy, for a time, in fresh water, and have been seen living for a while in Bonneville dam – 150 miles inland.

They see (mostly in blue/green) and hear well, as well as being able to sense nearby, with their whiskers. They generally eat fish, squid and occasionally clams. They have been seen cooperating with other sealions, or indeed dolphins porpoises and sea-birds in their hunting techniques, though exploitation is also common.

There are 5 relatively distinct populations. Several sealions have reached Japanese waters in recent years, and this is the most likely origin, as such  it could return to Japan on its own. 

It is considered least concern with 238,000-241,000 individuals and increasing over time.

Galapagos Sea-lions Found on all of the Galapagos Islands, as well as (in smaller numbers) on Isla de la Plata, which is just 40km from Puerto López a village in Ecuador. There have also been recorded sightings on the Isla del Coco which is 500km southwest of Costa Rica (and 750km from the Galapagos). These are not regular, and so have been considered vagrant. It is of course possible that historically they roamed here, but we cannot say.

They are the smallest species of sea-lion, and can often be seen gliding through the water, or sunbathing on the beach. They measure 1.5m-2.5m and weigh between 50 and 400kg.

Much of their diet is made up of sardines. Interaction with humans is usually negative, and feral dogs often form packs, and can then attack the sealions.

The population tends to bounce between 20,000 and 50,000 and they are currently classed as endangered

 

New Zealand Sea-lion (formerly known as the Hooker sealion) is native to south island, though before 1500 it is thought that it was also found on north island. They tend to breed on Subarctic islands of Auckland and Campbell (99% of the pups are born in these islands). In 1993, sealions started breeding on South Island again for the first time in 150 years.

Genetic evidence suggests that until 1300-1500 there was a mainland subspecies, which was wiped out by the Mauri’s and has been replaced by members from the sub-Antarctic population.

As well as eating fish and crustations, they will take new Zealand fur seals as well. They are hunted by great white sharks, and in a survey 27% of adults had scars from near misses. While south American sealions are hunted by orca (with them famously beaching to catch them) they do not appear to do this around New Zealand. After the birth of their pup, females move inland as much as 2km to avoid males, storms and even parasites.

They are thought to number 12,000 making them the rarest sealion. They are also the most distinct being part of the Genus Phocarctos, and are listed as endangered.

 

South-American Sea-lion

Also known as the Southern sealion or the Patagonian sealion. They have been recorded going as far north as Ecuador, though not yet breeding there. They eat fish, as well as squid and octopus, and have even been observed predating penguins, pelicans and South American fur seals.

Males set up territories, but after the arrival of females switch to protecting them. Having said this, one population in Peru have a different set-up where males perform, and females choose a mate, and are free to move freely. This may be in result to the warmer climate, which means the females make regular trips into the sea.

The total population is estimated at 265,000. They are declining in Patagonia (Argentina) and the Falklands but increasing in Chile and Uruguay. In the 2013 El nino many Peruvian sealions died. They are still regularly killed by fishermen, both for damaging equipment and stealing fish.

They are listed as least concern

 

As we gain contacts each picture above will become a link to a page for the specific species – for now, all species will be looked after by this page. If you are a wildlife guide or live nearby and want to be able to host (as a hotel or B&B or campsite) and would like to be listed do get in touch. Our aim, is to give people all the information and links on one page, so that they can book everything in one go – making it easy, and therefore more people undertaking these sort of trips.

Sea-lions can be specifically searched out, but it is also possible to have a surprise encounter with one.

One of my most memorable encounters with any wildlife, is an encounter with a New Zealand sealion.  We had simply gone for a walk on the beach, and at some point, we saw the sea-lion coming out of the sea. This huge male slowly made its way towards us, and when about 10m away it lay down in the sand, threw sand all over itself and went to sleep.

To return to the Pinniped page click here

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A flurry of wolves born in California: are they making a comeback?

Grey wolves from Oregon now appear to be thriving in California (where they disappeared from about 100 years ago).

Wolves and cubs in California

Wolves have never been reintroduced to California, instead they were returned to Yellowstone, re-entered Oregan back in 1999, and then entered California in 2008.

Short of a sudden sustained assault on their numbers, they are back in California and are likely to multiply over the next few decades to take back up their position as apex predators. This should not be feared in any way, with sensible management, it could end up benefiting California, with healthier ecosystems, less car crashes caused by wildlife amongst many other benefits.

aaa Sea of Cortez

Sea of Cortez, gulf of California, USA

With the Colorado river in the north to the Baja peninsula in the south, the sea of Cortez is relatively large and is scattered with around 240 islands.  While there is some wildlife to be explored on some of the islands, the seas are also teeming with a wide variety of species. On the surface blue fin humpback and sperm whales can be seen, alongside bottlenose dolphins Guadeloupe fur seals and leaping Mobula rays. There are also a wide variety of sea birds. As well as all this that can be seen from a boat, there is also a large number of coral reefs, meaning it is hugely popular with snorkellers and divers as well.

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Roaming wolf who broke ground in California killed on a highway

Wolves were exterminated very effectively across much of North America. When so called native Americans arrived probably as much as 15000 years ago, they quickly learnt to live alongside wolves. Sure, occasionally one would be killed, but generally they were left alone. Not so for the European settlers; as they had done before in Europe, wolves were hunted mercilessly. So when we started to worry about conservation of these species in the last 50 or so years there were few left. Even in places like Yellowstone they were eradicated.

Wolves, as with most wild animals pay little attention to human borders. Unfortunately he did not survive, but he wont be the last

Continue reading “Roaming wolf who broke ground in California killed on a highway”

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New resident wolf pack in northern California

A small new wolf pack has formed in northern California. This pack, known as the Beckworth pack has established itself in Pumas county. The pack consists of a 2 year old female wolf born in California and two others.

The new wolf pack now residing in California

This is only the third wolf pack to establish itself in California in the last century. California and their authorities have been heavily supportive of the recovery of wolves in the west of the USA and have publicly decried decisions made by its neighbours – moves which make wolves returning to the endangered list a significant possibility.

Continue reading “New resident wolf pack in northern California”
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Sea-lion struck down by epilepsy – brought on by global warming

There is an increasing problem of sea-lions off the coast of California becoming epileptic as result of global warming.

It appears to be caused by domoic acid poisoning, which in the wrong circumstances builds up to dangerous levels in shellfish and other sea animals in the area. 

Domoic acid can be released in large quantities during algae blooms, and due to global warming algae blooms are happening far more often.

Another animal this is prone to this problem are sea otters. Given the historical damage we did to the sea otter population, unfortunately lee6 could do substantial damage.

Scientists have found treatments that will allow them to deal with animals affected,however it may become necessary to find methods of making them affected instead as algae blooms will become more and more common as the temperature of the water’s increase.

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