The study of organisms that dwell in the ocean or brackish waters.

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Best tail for swimming?

I understand that the vertical tails of fish and the horizontal flukes of cetaceans evolved due to the spinal movements of their ancestors but I was just wondering which was the most efficient for ...
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Neuston vs pleuston

I was recently reading about the wonderful chondrophores, and came across the terms "neuston" and "pleuston". According to Wikipedia, "neuston" are "the organisms that float on the top of water ... ...
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Selection Pressure on Orca Whale Coloration

What is the proposed selection pressure that leads to the distinctive coloration of Orca whales? I can find nothing in the literature.
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Are large depth changes ever a barrier to gene flow in elasmobranchs?

I'm looking to find out if large changes in oceanic depth have ever restricted gene flow between populations of elasmobranch, or any other fish for that matter. I'm particularly interested in deep ...
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32 views

What's the more abundant biopolymer: chitin or (ligno)cellulose?

Chitin is considered the most abundant polymer after cellulose (e.g., Rinaudo, 2006). Does anyone know of specific biomass estimates in literature, probably also differentiating between terrestrial ...