Distribution of pelagic squids Abraliopsis Joubin, 1896 (Enoploteuthidae) and Pterygioteuthis P. Fischer, 1896 (Pyroteuthidae) (Cephalopoda, Decapodiformes, Oegopsida) in the Mexican Pacific
نویسندگان
چکیده
The oegopsid squids Abraliopsis and Pterygioteuthis are abundant and diverse genera with taxonomic and distributional problems. Identification and distribution of species in the Mexican Pacific has been somewhat controversial. Here are provided a large series of new records for Abraliopsis affinis, Abraliopsis falco, Pterygioteuthis gemmata, Pterygioteuthis giardi and Pterygioteuthis hoylei from the Gulf of California and off the SW coast of Mexico. All five species were collected in the central or the southern Gulf of California, or in both. Abraliopsis affinis was found in seven samples with a total of 48 specimens, from 21°59' to 24°53'12"N. Abraliopsis falco was much less represented in the samples (14 specimens) but it was found in 10 localities, four of which correspond to the central-southern Gulf of California (north to 27°44'53"N) and six to SW Mexico (south to 16°49'18"N). In the case of Pterygioteuthis gemmata, only two records (three specimens) were obtained, both in the SW Gulf of California, while Pterygioteuthis giardi (nine specimens) records were all from the central Gulf of California (27°44'53" to 25°39'59"N). In the case of Pterygioteuthis hoylei (nine specimens), material was obtained in six localities, also in a restricted latitudinal range (24°23'48" to 25°56'56"N).
منابع مشابه
Molecular phylogeny of coleoid cephalopods (Mollusca: Cephalopoda) using a multigene approach; the effect of data partitioning on resolving phylogenies in a Bayesian framework.
The resolution of higher level phylogeny of the coleoid cephalopods (octopuses, squids, and cuttlefishes) has been hindered by homoplasy among morphological characters in conjunction with a very poor fossil record. Initial molecular studies, based primarily on small fragments of single mitochondrial genes, have produced little resolution of the deep relationships amongst coleoid cephalopod fami...
متن کاملThe Common Occurrence of Oegopsid Squid Eggs in Near - Surface Oceanic Waters
A variety of egg types removed from near-surface plankton tows off Hawaii developed into young squids. Previously, the eggs of pelagic, oceanic squids were virtually unknown. Over 90% of these near-surface plankton tows taken with a l-m net contained squid eggs. About 90% of the eggs were collected in the upper 100m with most of these coming from the mixed layer. The eggs were separate rather t...
متن کاملThe Journal of Veterinary Medical Science Wildlife Science Title: the Functional-morphological Adaptive Strategy of Digestive Organs of Decapodiform Authors Names and Affiliations: Ayano Omura Running Head: Digestive Organs in Decapodiformes Cephalopods
19 The digestive organs in decapodiform cephalopod species morphologically vary by 20 individual lifestyle. We examined the following six species of adult decapodiformes 21 cephalopods representing different habitats: Todarodes pacificus, Loligo bleekeri, Loligo 22 edulis, Watasenia scintillans (pelagic), Sepia lycidas, and Euprymna morsei (benthic). L. 23 bleekeri and L. edulis possess a bursi...
متن کاملAn East-West Comparison of the Transition Zone Coastal Pelagic Nekton of the North Pacific Ocean
During the 1980s and 1990s, scientific research cruises were conducted in both the eastern and western boundary regions of the North Pacific Ocean. The main purpose of these cruises was to examine the abundance and distribution patterns of juvenile salmon in coastal waters. These studies created one of the most extensive databases ever collected on the species composition of coastal Transition ...
متن کاملIdentification of different species of squids in Oman Sea (Iranian waters)
Identification of different species of oceanic and neritic squids in Iranian waters of Oman Sea was carried out from December 1996 to February 1997. The trawl surveys were conducted during a 12-months period. Fishing was also undertaken by Mid-water and bottom trawl for species confirmation purposes in deep (200-350m) and shallow (0-100m) waters to collect enough specimens that could be used fo...
متن کامل