Selected pages from Adriaen Coenen's Visboek, an illustrated guide to the strange and wonderful world of fish. No sixteenth-century mariner should leave shore without it. The National Library of the Netherlands has the complete book, with commentary.
CreatureCast - Rhizocephala - a charmingly animated look at the lifecycle of rhizocephalan barnacles, one of the more horrifying (non-charming) parasitic crustaceans (likewise). NOT a practitioner of parasitic castration but still disturbing: The bobbit worm. Happy swimming!
How to Save a Dying Ocean - "New England fishermen have mixed feelings about a programme designed to allow overfished species to recover. Mark Schrope reports on how catch shares have scientists fishing for answers." (via) [more inside]
The End of Fish - maybe it's finally time for an environmental accounting, cuz the 'bill' is coming due; stocks and flows, folks.
Similar to coral, and much like the individual cells in our body, the individual zooids of Siphonophorae are so specialized that they lack the ability to survive on their own. Siphonophorae thus exist at the boundary between colonial and complex multicellular organisms. The Portuguese Man of War is probably the best known example of a Siphonophore, but there are others out there, some of which may well blow your mind.
The Jupiter Foundation and the Whalesong Project are both organizations which record humpback whale songs from floating buoys; some of their archived recordings can be found here, here, and here. (Warning, last two may resize your browser.) DOSITS hosts a more comprehensive collection of oceanic sounds, with seals and fish along with its whales and dolphins. It also has a couple of nice sections on how animals use sounds in the ocean. (Previously.) [more inside]