Volume 5. Article 2. The Aristaeinae, Solenocerinae and pelagic Penaeinae of the Bingham Oceonographic Collection. Materials for a revision of the oceanic Penaeidae.

https://elischolar.library.yale.edu/bulletin_yale_bingham_oceanographic_collection/1112/thumbnail.jp

The sex-ratio In alternational hermaphrodites, with especial reference to the determination of rate of reversal of sexual phase In oviparous oysters

In a population in which the sexual nature of the individuals is not subject to change, the sex-ratio of a given brood as determinable in practice may be different at different times if there is a differential rate of maturation for the two sexes, or a differential death rate. Excluding from present consideration the periods in the life of the population at whi ch these differentials may operate, however, the sex-ratio of the brood at any given time shou ld be identical with that at any other time...

Volume 4. Article 7. Littoral Penaeidea chiefly from the Bigham Oceanographic Collection. With a revision of Penaeopsis and descriptions of two new genera and eleven new American species.

https://elischolar.library.yale.edu/bulletin_yale_bingham_oceanographic_collection/1110/thumbnail.jp

A possible function of bioluminescence

It has been found difficult in many cases to conceive a use of the light to the luminescent organism, despite the large number of possibilities of ecological significance which have been suggested (vide Mangold, 1910, pp. 326-32; Kemp, 1910, p. 649; Putter, 1911, p. 487; Harvey, 1920, pp. 81-4 ; Rauther, 1927, pp. 162:...6; Harvey, 1942, pp. 58-87)...

Volume 6. Article 6. Further observations on Penaeidae of the northern Gulf of Mexico.

https://elischolar.library.yale.edu/bulletin_yale_bingham_oceanographic_collection/1121/thumbnail.jp

First record of the genus Periclimenaeus borradaile, 1815 (decapoda : palaemoniidae : pontoniinae) in the northeastern Atlantic, with the description of a new species, Periclimenaeus aurae

A new species of Periclimenaeus is described from Madeira Island, in the northeastern Atlantic Ocean. It is closest to P. pearsei Holthuis, 1951 from the western Atlantic, but it can be distinguished by the shape of rostrum, the size of exopod in relation to endopod in third maxilliped, the relation between the carpus and the chela of pereiopod 1, the relative size of second pereiopod minor chel a, and the number of setae on appendix masculina. This is the first record of the genus Periclimenaeus in the eastern Atlantic.info:eu-repo/remantics/publishedVersio

Simultaneously Hermaphroditic Shrimp Use Lipophilic Cuticular Hydrocarbons as Contact Sex Pheromones

Successful mating is essentially a consequence of making the right choices at the correct time. Animals use specific strategies to gain information about a potential mate, which is then applied to decision-making processes. Amongst the many informative signals, odor cues such as sex pheromones play important ecological roles in coordinating mating behavior, enabling mate and kin recognition, qualifying mate choice, and preventing gene exchange among individuals from different populations and species. Despite overwhelming behavioral evidence, the chemical identity of most cues used in aquatic organisms remains unknown and their impact and omnipresence have not been fully recognized. In many crustaceans, including lobsters and shrimps, reproduction happens through a cascade of events ranging from initial attraction to formation of a mating pair eventually leading to mating. We examined the hypothesis that contact pheromones on the female body surface of the hermaphroditic shrimp Lysmata boggessi are of lipophilic nature, and resemble insect cuticular hydrocarbon contact cues. Via chemical analyses and behavioural assays, we show that newly molted euhermaphrodite-phase shrimp contain a bouquet of odor compounds. Of these, (Z)-9-octadecenamide is the key odor with hexadecanamide and methyl linoleate enhancing the bioactivity of the pheromone blend. Our results show that in aquatic systems lipophilic, cuticular hydrocarbon contact sex pheromones exist; this raises questions on how hydrocarbon contact signals evolved and how widespread these are in the marine environment

Trait-based approaches to zooplankton communities

Zooplankton are major primary consumers and predators in most aquatic ecosystems. They exhibit tremendous diversity of traits, ecological strategies and, consequently, impacts on other trophic levels and the cycling of materials and energy. An adequate representation of this diversity in community and ecosystem models is necessary to generate realistic predictions on the functioning of aquatic ecosystems but remains extremely challenging. We propose that the use of trait-based approaches is a promising way to reduce complexity while retaining realism in developing novel descriptions of zooplankton in ecosystem models. Characterizing zooplankton traits and trade-offs will also be helpful in understanding the selection pressures and diversity patterns that emerge in different ecosystems along major environmental gradients. Zooplankton traits can be characterized according to their function and type. Some traits, such as body size and motility, transcend several functions and are major determinants of zooplankton ecological strategies. Future developments of trait-based approaches to zooplankton should assemble a comprehensive matrix of key traits for diverse groups and explore it for general patterns; develop novel predictive models that explicitly incorporate traits and associated trade-offs; and utilize these traits to explain and predict zooplankton community structure and dynamics under different environmental conditions, including global change scenarios. © 2013 The Author