More About Salmon

School of salmons marching to their breeding ground. Photo by: PatClayton

Salmon is one of the fish largely farmed these days. The farming technologies help more people from all around the world to enjoy eating salmon at the same time avoiding wild salmon to recover from overfishing, loss of habitats due to dam constructions deforestation and development. No one knew the exact numbers of the ideal salmon in the wild, but avoiding further damage to the wild population in important before it’s too late.

There are more interesting things about salmon that we need to know. As the salmon that grows for commercial purposes only few types that suitable for the farming industries. While there are many other salmons included in this family and some of them not even migrate to the sea as other salmon do. So what happen to them? Are all of them threaten as the common salmon (Atlantic salmon: Salmo salar and Pacific salmon: genus Oncorhynchus)?

Salmon's steak. Photo by: J.Kenji López-Alt 

Chinook salmon, the largest salmon today. Drawing of Ocean Phase Chinook (king) salmon (Oncorhynchus tshawytscha). Image by: eopugetsound.org

Salmon is the group of fish in the family Salmonidae that also includes trout, char, grayling and whitefish. But the salmon that we are going to talk about are mostly the two popular group of North Atlantic (genus Salmo) and Pacific Ocean (genus Oncorhynchus) and few more species in the same family.

The main group of salmons show in the table below with their genus, names, scientific names, maximum length, common length, maximum weight, and maximum age. These are also the salmons that use as farming salmon for commercial purposes. From their maximum age, we will know their life cycles and how long it would take for the salmon to restore their population.

Genus	Common name	Scientific name	Maximum length	Common length	Maximum weight	Maximum age
Salmo (Atlantic salmon)	Atlantic salmon	Salmo salar Linnaeus, 1758	150 cm	120 cm	46.8 kg	13 years
Oncorhynchus (Pacific salmon)	Chinook salmon	Oncorhynchus tshawytscha (Walbaum, 1792)	150 cm	70 cm	61.4 kg	9 years
	Chum salmon	Oncorhynchus keta(Walbaum, 1792)	100 cm	58 cm	15.9 kg	7 years
	Coho salmon	Oncorhynchus kisutch(Walbaum, 1792)	108 cm	71 cm	15.2 kg	5 years
	Masu salmon	Oncorhynchus masou(Brevoort, 1856)	79 cm	cm	10.0 kg	3 years
	Pink salmon	Oncorhynchus gorbuscha (Walbaum, 1792)	76 cm	50 cm	6.8 kg	3 years
	Sockeye salmon	Oncorhynchus nerka(Walbaum, 1792)	84 cm	58 cm	7.7 kg	8 years

Other than the main species of salmons there are few more salmon that we should know;

• Black Sea salmon (Salmo labrax) - small species of salmon with 51 cm (20 in) in length on average and can reach up to 76 cm (30 in). This species inhabits the northern Black Sea coast and inflowing river. Same as other salmon they are also anadromous, lacustrine and resident river populations. Spawn in October - January. Parrs live in rivers for 2 - 4 years, then smoltify and migrate to the sea or mature in the freshwater. They can spend for another 2 - 4 years before return to the spawning areas. Their conservation status also showing least concern.
• Danube salmon (Hucho hucho) - also known as huchen, is a large freshwater fish. They never go to the sea as any other salmon. Huchen is endemic to the Danube basin in Europe. They also reported to be found in the Dniestr basin in the historic time and in big dam reservoirs on the mountain such as Lake Czorsztyn in Poland. Huchen is a big fish with size up to 1.5 m (4ft 11 in) and weight up to 50 kg 110 lb). The modern record for largest huchen is 34.8 kg (77 lb), caught in February 1985 in Spittal an der Drau in Austria, while older records reported weights in excess of 60 kg (130 lb). Unfortunately the conservation status for huchen already reach the level of “threatened”.
• Sabertooth salmon (Oncorhynchus rastrosus) - is an extinct species of salmon that can grow to very large sizes. They lived along the Pacific coast of North America in the late of Miocene Period, near California. The adults grew up to 2.7 m (9 ft) in length and also an anadromous like the modern salmon. They have a pair of small fangs protruding from the tip of the snout that also gave them their name. Even though so big they believe to be planktonic feeder. More about sabertooth salmon can be found here.

Black Sea salmon. Photo by: Otel,Vasile  

Danube salmon. Photo by: Hartl,Andreas

The display of saber-tooth salmon at Museum of Natural and Cultural History in Eugene. Photo by: RACHAELMCDONALD

Yes there are many other fish in the same family of Salmonidae. If you want to know more details about the sub-species in this family the best place to look for them is through fishbase. While salmon farming get better in producing good quality of salmon every year and the wild salmon population getting increases. The sub-species of salmon too should be taken care off too. With more knowledge shares among publics the awareness of conservation will be taken more seriously by each individual.

Beautiful World of Birds

Peacock has magnificent feathers.

Since 2018 was announced as “Year of Bird” by world known organizations such as National Geographic, National Audubon Society, BirdLife International, and the Cornell Lab of Ornithology, we are here going to share the same spirits to know more about the bird’s world. There are plenty of articles about birds in this blog but mostly written in Malay. Today we will see another special characters about this wonderful creature.

Birds are known for their colourful plumage, beautiful sounds and the most important ability to fly. Even though not all birds share the same capabilities as some of them have dull colouration nor the ability to flies. Birds same as any other species in the world plays important roles in the ecosystem and most of them are threaten to extinction.

Pigeon can adapt to live among human.

Flightless bird have ability to protect itself.

There are around 9,800 to 10,500 species of birds (well the numbers are varies caused by the classification of taxonomic viewpoint), but still showing large numbers of species. From that numbers only some of them can survive in modern day world to live among human such as pigeons, crows, house sparrow, starling, robin, falcon and few others. Unfortunately living in their unnatural habitats, most of these birds are considered as pest rather than how beautiful they are supposed to be.

In this short article we are going to see how beautiful the birds can be. Since the birds has the ability to fly, some bird plumage are totally to attract mates rather than to avoid predators. These are true mostly for birds of paradise that lives millions of years isolated from predators. While some other lost their ability to fly such as kiwi, dodo, kakapo, penguins, ostrich, emu, and cassowary. Most of the flightless birds already extinct.

The most elaborate feathers in peacock.

Perhaps we all know the most elaborate plumage of peacock where the length of their tail’s feathers exceed their body’s length. The peacock also have iridescent colours of blue, green and mixture of yellow and brown. Peacock had inspired human in many ways, and their plumage been used for decorations in sacred rituals.

Scarlet Macaw have the brightest colours in parrot's family.

Then they are family of parrots. Another stunning colourful birds - mostly found in tropical forest. Not just their colourful feathers are so stunning, their beak shapes also make it looks cuter. Parrots of the tropics has more colourful plumage with iridescent colours. Here in the tropics their colours still blend in perfectly to the dense of forest canopy.

Flamingo live in large group.

Different with flamingo with shades of pink colours. Their colours actually come from their food source. They are born with white feathers, as their parents feed them – the parent’s colours will turn pales while theirs chicks will change to pink.

Greater Bird of Paradise showing their beautiful plumage.

The distribution of Birds of Paradise in Papua New Guinea.

As we mentioned above, far-far away in the East at Papua New Guinea there are groups of birds known as birds of paradise with different characters. These groups of birds not only have beautiful plumage, but most of them have special ways to attract mates - all species have their own unique courtship dance. Here in this island, these birds can concentrate their energy to attract mates than thinking about to avoid predators.

Since there are thousands of birds and most of them have colourful plumage, here are small examples that you can start with. The more we know about these beautiful creatures the more we understand how to help them to survive in the wild or perhaps in the urban areas too.

Micro Post: Whooping Crane

Elaborate courtship dance of whooping cranes.

Cranes are the symbol of long life and fidelity in eastern Asia. They inspired artists to picture them in their paintings since antiquity. Human admire cranes for its qualities such as mate for life, their elaborate courtship dance, their white plumage and many other.

Whooping crane also can be found in North America and almost extinct when their total numbers were less than 20 birds by 1941 - caused by lost of their wetland habitats. Their breeding areas are in the Midwest and Canada, and migrating to the Gulf coast during the winter. Their number had increased up to 600 today through captive breeding, wetland management and by teaches young cranes to migrate.

Whooping crane will keep on moving while searching for foods.

It can be in small flock.

Conservation work; feeding the young.

Whooping crane is a large bird that can reach height up to 1.5 meter (4.9 feet) and have a wingspan up to 2.3 meters (7.5 feet). Males weigh on average 7.3 kg (16 lb), while females weigh 6.2 kg (14 lb). The next largest bird in the same family is the great egret which is over a foot (30 cm) shorter with weight one-seventh the weight of this crane.

Whooping Cranes will keep on moving, browsing and probing for food rather than hunting patiently and stealthily like heron. They can be in small flocks too. Other than that, cranes are known for its elaborate courtship dance and usually painted by artists against white snow background. 

Flying above the water.

Flapping its wings.

Flying in small group.

Popular subject in painting.

Family of Parrot

Scarlet macaw one of the most beautiful bird in parrot family.

We all love parrot because they are colorful, beautiful and playful bird. Maybe some of us would like to keep it as a pet. Anyway with the population of parrot that decreasing in their natural habitat we need to think it through before we decide to take it out of their lovely home.

The best things you want to know about parrot that there are large species of parrot consist under the order of Psittaciformes which includes cockatoos (family Cacatuidae). Even though parrots have close relationship with human as pet since long time ago, they still suite better with their natural environment - because bird needs to fly to be bird. Anyway the captive birds show intelligent with amusing behaviors, affectionate with human and other animals and even imitative many sounds, including human speech.

Parrots are playful bird, as can be seen here in the photo.

Cockatoo, notorious with their ability to imitate human speech.

The order Psittaciformes are divided into three superfamilies: the Psittacoidea ("true" parrots), the Cacatuoidea (cockatoos), and the Strigopoidea (New Zealand parrots). Most parrot live in topical and sub-tropical region with several species can be found in temperate region in Southern Hemisphere. The large diversity of parrots is in South America and Australia.

There are 387 extent species under order Psittaciformes belonging to 87 genera with the main classification.

3 main groups;

Superfamily Psittacoidea: true parrots

• Family Psittacidae
• Family Psittaculidae

Superfamily Cacatuoidea: cockatoos

• Family Cacatuidae

Superfamily Strigopoidea: New Zealand parrots

• Family Nestoridae
• Family Strigopidae

African grey parrot from Africa.

Golden parakeet is native to Brazil.

New Zealand kākā is one of few species in New Zealand.

From all of the species, 15 of them are already extinct and many other are listed under “Near threatened” to “Critically endangered” in the IUCN Red List categories Conservation status. So in order to ensure these species keep on survives as long as we can, we need to learn more about them and preserve as much as we can their natural habitat.

Tiny Pacific partotlet.

Red lory from Australia. 

Swift parrot another small species from Australia.

Western rosella - also from Australia.