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Morphological and genetic description of Octopus insularis, a new cryptic species in the Octopus vulgaris complex (Cephalopoda: Octopodidae) from the tropical southwestern Atlantic
A medium-sized Octopus species is described based on material collected in shallow equatorial waters around the oceanic islands of Fernando de Noronha Archipelago, Rocas Atoll, St Peter and St Paul…
Habitat, distribution, and abundance of the commercial octopus (Octopus insularis) in a tropical oceanic island, Brazil: Information for management of an artisanal fishery inside a marine protected…
Morphological assessment of the Octopus vulgaris species complex evaluated in light of molecular‐based phylogenetic inferences
The hypothesis that multiple O vulgaris‐like species are currently being incorrectly treated under a single species name, O. vulgaris, is supported.
World Octopus Fisheries
Abstract Recent studies have shown that coastal and shelf cephalopod populations have increased globally over the last six decades. Although cephalopod landings are dominated by the squid fishery,…
Octopus insularis (Octopodidae), evidences of a specialized predator and a time-minimizing hunter
The large proportion of two species of small crabs in den remains, the intense search for food during short hunting trips, and the intense use of cryptic body patterns during foraging trips, suggest that this species is a ‘time-minimizing’ forager instead of a “rate-maximizer’.
Cephalopod Cognition: Foraging and cognitive competence in octopuses
Occurrence of Octopus insularis Leite and Haimovici, 2008 in the Tropical Northwestern Atlantic and implications of species misidentification to octopus fisheries management
- Françoise D. Lima, Waldir M. Berbel-Filho, T. Leite, C. Rosas, Sergio M. Q. Lima
- Environmental Science, BiologyMarine Biodiversity
- 3 February 2017
Based on molecular and morphological data, the distribution of O. insularis is extended to the TNA and cases of misidentification among the most commercially exploited octopus species in this region are revealed.
Spatial distribution of epibenthic molluscs on a sandstone reef in the Northeast of Brazil.
- A. Martinez, L. Mendes, T. Leite
- Environmental ScienceBrazilian journal of biology = Revista brasleira…
- 1 May 2012
The results found could reflect a normal characteristic of the molluscan community distribution in sandstone reefs, with low coral cover, or could indicate a degradation state of this habitat if it is compared to coral reefs, once that the significantly high coverage of fleshy alga has been recognized as a negative indicator of reef ecosystems health.
Gonadal development and reproductive strategies of the tropical octopus (Octopus insularis) in northeast Brazil
- Françoise D. Lima, T. Leite, M. Haimovici, J. E. Lins Oliveira
- Biology, Environmental ScienceHydrobiologia
- 1 March 2014
Octopus insularis has a general gonadal development pattern similar to O. vulgaris, however, some differences were observed, as maturation at a smaller size, probably associated to a shorter life, and lower fecundity, which seems to be related to less variable conditions in the tropical environments.
Individual Prey Choices of Octopuses: Are they Generalist or Specialist?
It is hypothesized that both localized prey availability and individual personality differences could influence the exploration for prey and this translates into different prey choices across individuals and populations showed in this study.