Ballena azul vs

Balaenoptera musculus compared with Cocconeis neothumensis

Key Differences

Ballena azul is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank	Ballena azul
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Chordata (cordados)	Ochrophyta (Ochrophyta)
Class	Mammalia (mamíferos)	Bacillariophyceae (Bacillariophyceae)
Order	Cetacea (Whales & Dolphins)	Achnanthales (Achnanthales)
Family	Balaenopteridae (Rorquals)	Cocconeidaceae
Genus	Balaenoptera (Rorquals)	Cocconeis
Species	Balaenoptera musculus	Cocconeis neothumensis

Conservation Status

Ballena azul

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

NE — Not Evaluated

Physical Characteristics

Attribute	Ballena azul
Diet	Carnivore	—
Average Lifespan	90 years	—
Average Length	30.0 m	—
Average Weight	150.0 t	—

Habitat & Geographic Range

Ballena azul

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Habitat

Native to Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Brazil, Norway, and Sweden.

Ballena azul

El animal más grande que se conoce haya vivido en la Tierra; las ballenas azules pueden alcanzar 33 metros y 200 toneladas — sus corazones solos pesan tanto como un automóvil pequeño. Se encuentran en todos los océanos y migran entre las zonas de alimentación polares y las áreas de reproducción tropicales. Son filtradoras que consumen hasta 4 toneladas de kril al día. En peligro de extinción, con poblaciones globales estimadas entre 10.000 y 25.000 tras casi extinguirse por la caza de ballenas en el siglo XX.

Cocconeis neothumensis is an epiphytic diatom in the family Cocconeidaceae, closely related to the type species Cocconeis thumensis but representing a morphologically and molecularly distinct taxon distinguished by the specific architecture of its silica frustule valves. The genus Cocconeis comprises adnate diatoms that attach firmly to solid substrates in aquatic environments, including the surfaces of submerged macrophytes, periphyton mats, and sediment particles in rivers, lakes, and coastal habitats. Cocconeis neothumensis has been recorded from freshwater bodies in South America and other regions, contributing to the benthic periphyton communities that coat submerged surfaces in well-lit aquatic habitats. The frustule ornamentation—including the density and arrangement of transapical striae and the morphology of the raphe system—provides the key morphological characters used to distinguish this species from its congeners under light and electron microscopy. Like all diatoms, C. neothumensis requires dissolved silicic acid to construct its frustule and depends on phosphorus and nitrogen availability for growth, making it a sensitive indicator of nutrient conditions in monitored water bodies. Periphytic diatom communities including Cocconeis species are widely used in ecological assessment frameworks such as the European Water Framework Directive to evaluate the biological quality of freshwater bodies based on assemblage composition. Conservation status is not formally evaluated.