SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Dramatic examples of right-left asymmetry often inspire adaptive explanations, simply because it is hard to imagine how such forms could not be functionally significant. But are conspicuous morphological asymmetries necessarily adaptive? Surprisingly, in some species where direction of asymmetry is random, asymmetry in bilaterally paired traits may arise as a developmental error in a threshold trait. When cases of asymmetry are rare within a species, they are easily recognized as developmental errors. However, as asymmetrical individuals become more common, or if the asymmetry is in a signaling trait, the temptation to advance an adaptive explanation grows, particularly if the asymmetry is not clearly maladaptive. Several models of the ontogeny of...

Tipo: Article / Letter to the editor

Palavras-chave: Acari; Adaptive significance; Crabs; Crustacea; Developmental models; Diptera; Flies; Hemiptera; Insecta; Lobsters; Mites; Morphological asymmetry; Polyphenism; Shrimp; Stochastic development; True bugs; 42.21.

Ano: 2012

URL: http://www.repository.naturalis.nl/record/419175

Hermit crab

At Lancaster P. prideaux were found at a density of 0.11 individuals meter squared

Tipo: Video

Palavras-chave: Order Decapoda (Crabs; Lobsters; Prawns; Shrimps).

Ano: 2009

URL: http://archive.serpentproject.com/1584/

Hermit crab

P. prideaux has a symbiotic relationship with the anemone Adamsia carciniopados, which it carries on its shell. The anemone offers protection while gaining food from the crab’s feeding. The anemone's tentacles can be seen in this picture underneath the crab's shell. This image is from a return visit to Lancaster 9 months after drilling.

Tipo: Image

Palavras-chave: Order Decapoda (Crabs; Lobsters; Prawns; Shrimps) Pagurus prideaux Adamsia carciniopados.

Ano: 2010

URL: http://archive.serpentproject.com/1784/

Hermit crab

At Lancaster P. prideaux were found at a density of 0.11 individuals meter squared

Tipo: Video

Palavras-chave: Order Decapoda (Crabs; Lobsters; Prawns; Shrimps) Pagurus prideaux.

Ano: 2009

URL: http://archive.serpentproject.com/1585/

Hermit crab

feeding

Tipo: Video

Palavras-chave: Order Decapoda (Crabs; Lobsters; Prawns; Shrimps) Pagurus prideaux Adamsia carciniopados.

Ano: 2009

URL: http://archive.serpentproject.com/1583/

Hermit crab

P. prideaux has a symbiotic relationship with the anemone Adamsia carciniopados, which it carries on its shell. The anemone offers protection while gaining food from the crab’s feeding. The anemone's tentacles can be seen in this picture underneath the crab's shell. At Lancaster P. prideaux were found at a density of 0.11 individuals meter squared

Tipo: Image

Palavras-chave: Order Decapoda (Crabs; Lobsters; Prawns; Shrimps) Pagurus prideaux Adamsia carciniopados.

Ano: 2009

URL: http://archive.serpentproject.com/1613/

Las langostas chinas (Crustacea: Decapoda: Scyllaridae) del Caribe colombiano

Campos C., N. H.; Navas S., G. R..

Se registran seis especies de langostas chinas (Crustaceae: Scyllaridae) del Caribe colombiano y se incluyen una diagnosis de cada una y una clave para su identificación. De estas, cuatro se registran por primera vez para el área: Scyllarides aequinoctialis, S. delfosi, Scyllarus depressus y Parribacus anctarcticus.

Tipo: Journal Contribution

Palavras-chave: Lobsters.

Ano: 1998

URL: http://hdl.handle.net/1834/4411

Marine crustacean farming: present status and perspectives

Laubier, Annie; Laubier, Lucien.

For centuries, several species of prawns and crabs have been raised from wild-caught juveniles in coastal brackish-water fish ponds in various countries of south east Asia. The Indonesian "tambaks" are well known examples of such traditional practices. In western countries, since the turn of the century, advances of marine biology and fast increase of marine fisheries enabled the development of large-scale production and release of larval stages of American and European lobsters in a fruitless attempt to restock natural populations. After the Second World War, the increasing demand for crustaceans in United States and Japan was satisfied by opening new prawn fisheries all over the world. A major breakthrough was achieved with the development of hatchery...

Tipo: Text

Palavras-chave: Crustacés; Crevettes; Crabes; Homards; Aquaculture; Exploitation; Penaeidae; Crustaceans; Shrimps; Prawns; Crabs; Lobsters; Aquaculture; Exploitation; Penaeidae.

Ano: 1993

URL: http://archimer.ifremer.fr/doc/00190/30119/28587.pdf

Registros recuperados: 39

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