Results 31 to 40 of about 29,958 (217)

Mollusks and a crustacean from early Oligocene methane-seep deposits in the Talara Basin, northern Peru [PDF]

Acta Palaeontologica Polonica, 2020
A total of 25 species of mollusks and crustaceans are reported from Oligocene seep deposits in the Talara Basin in northern Peru. Among these, 12 are identified to the species-level, including one new genus, six new species, and three new combinations ...
Steffen Kiel, Frida Hybertsen, Matúš Hyžný, Adiël A. Klompmaker   +3 more
doaj   +1 more source

Four new species of the family Lithodidae (Crustacea: Decapoda) from the collections of the National Museum of Natural History, Smithsonian Institution

, 2009
FIGURE 2. Paralomis alcockiana n. sp. a–f: male holotype, 44 mm CL (USNM 269032), South Carolina: 31°20'N, 79°05'W, 570 m. (a) anterior carapace, lateral. (b) rostral spines, dorsal. (c) right antennal acicle, dorsal. (d) abdomen.
Thatje, S., Thatje, Sven, Hall, S., Hall, Sally   +3 more
core   +1 more source

Morfología del la primera zoea del cangrejo Calappa granulata (Linnaeus, 1758) (Brachyura, Calappidae) obtenida en el laboratorio

Graellsia, 1999
En el presente trabajo se describe el primer estadio larvario del cangrejo Calappa granulata. Las larvas se obtuvieron a partir de una hembra ovígera capturada en el Mediterráneo occidental.
G. Guerao, P. Abelló, P. Torres
doaj   +1 more source

Composition, Distribution, and Fisheries Biology of Penaeid Shrimp from the Strong Wavy Waters of Southern Java, Indonesia

Jurnal Kelautan Tropis, 2023
Penaeidae is a family of shrimp that has a high economic value, leading to intensive exploitation in many areas. This research was conducted to ascertain the composition, distribution, and fisheries biology of Penaeid shrimps in the strong wavy water of ...
Rianti Pratiwi, Wanwan Kurniawan, Ayuningtyas Indrawati, Putri Sapira Ibrahim, Muhammad Hafizt   +4 more
doaj   +1 more source

King crabs up-close: ontogenetic changes in ornamentation in the family Lithodidae (Decapoda: Anomura), with a focus on the genus Paralomis

, 2010
In this study, we describe the carapace ornamentation found on species of Lithodidae (Decapoda: Anomura), focussing primarily on the genus Paralomis, which displays the greatest diversity of forms, globally.
Sven Thatje, Sally Hall, Thatje, Sven, Hall, Sally   +3 more
core   +1 more source

The mitochondrial genome of Bottapotamon fukienense (Brachiura: Potamidae) is fragmented into two chromosomes

BMC Genomics
Background China is the hotspot of global freshwater crab diversity, but their wild populations are facing severe pressures associated with anthropogenic factors, necessitating the need to map their taxonomic and genetic diversity and design conservation
Wang-Xinjun Cheng, Jun Wang, Mei-Lin Mao, Yuan-Biao Lu, Jie-Xin Zou   +4 more
doaj   +1 more source

Method‐dependent differences in zooplankton abundance and size metrics: Microscopy vs. ZooScan

Limnology and Oceanography: Methods, EarlyView.
Abstract Image‐based approaches such as ZooScan are increasingly used for high‐throughput zooplankton monitoring. However, quantitative evaluations of methodological differences relative to conventional microscopy remain limited. In this study, zooplankton abundance and size‐based metrics obtained from microscopy and ZooScan image analysis were ...
Young Seok Jeong, Min‐Chul Jang, Min Ho Seo, Dong‐Hun Lee, Ho Young Soh   +4 more
wiley   +1 more source

Variação espaço-temporal das larvas de Decapoda do Arquipélago de São Pedro e São Paulo [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-Graduação em Ecologia, Florianópolis, 2010Larvas de Decapoda estão entre os principais componentes do zooplâncton marinho, podendo representar
Brandão, Manoela Costa
core  

Dumpsite Seabed Characterization of the San Pedro Basin, CA, From Autonomous Vehicle Observations

Journal of Field Robotics, EarlyView.
ABSTRACT A wide‐area seabed survey was conducted using autonomous underwater vehicles (AUVs) in a known dumpsite off the coast of Southern California that has been found to have widespread sediment contamination from the chemical dichlorodiphenyltrichloroethane (DDT).
Ryan A. McCarthy, Dylan Kriegman, Sophia T. Merrifield, Heidi Batchelor, Eric J. Terrill   +4 more
wiley   +1 more source

Geometric Morphometrics Reveal Body Shape Variation in Freshwater Shrimps of the Genus Macrobrachium Lacking a Mandibular Palp (Formerly Pseudopalaemon Sollaud, 1911) (Decapoda: Palaemonidae)

Acta Zoologica, EarlyView.
ABSTRACT Shape variation in the cephalothorax of Macrobrachium species without mandibular palp using geometric morphometrics was used as a tool to support species differentiation and propose new diagnostic characters for taxonomic identification.
Thaís Arrais Mota, Ana Carla Soares da Silva, Lucas Jhones de Santana Neves, Carlos Eduardo Rocha Duarte Alencar, Fabrício Lopes Carvalho   +4 more
wiley   +1 more source