The coast of northern Chile has been sparsely studied in regards to its invertebrate fauna, with just a few works reviewing the distribution of local mollusks. This work presents a survey of the shallow water heterobranch sea slugs currently occurring around the port of Caldera (27 °S), in the Región de Atacama, northern Chile. Eight species of sea slugs were found in this study: Aplysiopsis cf. brattstroemi (Marcus, 1959), Baptodoris peruviana (d'Orbigny, 1837), Diaulula variolata (d'Orbigny, 1837), Doris fontainii d'Orbigny, 1837, Onchidella marginata (Couthouy in Gould, 1852), Phidiana lottini (Lesson, 1831), Tyrinna delicata (Abraham, 1877) and the new species Berthella schroedli sp. nov., described herein. All of the species found in the area are endemic to South America, having distributions in the southeastern Pacific and South Atlantic Oceans, from Ancash, Perú to Peninsula Valdés, Argentina, and two of them represent species which are endemic to the Chilean coasts (Aplysiopsis cf. brattstroemi and Berthella schroedli). The finding of a previously undescribed species emphasizes the need of further surveys, particularly in subtidal and deeper waters, in order to improve the knowledge on this neglected fauna in Atacama.
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http://dx.doi.org/10.7717/peerj.1963 | DOI Listing |
Aquat Toxicol
December 2024
Department of Marine Science and Fisheries, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al Khoud 123 PO Box 34, Muscat, Oman; UNESCO Chair in Marine Biotechnology, CEMB, Sultan Qaboos University, Al Khoud 123, PO Box 50, Muscat, Oman. Electronic address:
This study investigated microplastic pollution in the large mud snail Terebralia palustris (Linnaeus, 1767) (Gastropoda: Potamididae) inhabiting the Avicennia marina mangrove ecosystems along the Sea of Oman. A modified digestion protocol, combining two methods, was employed to improve the detection of microplastics within the snail tissue. Results indicated that 50 % of the examined snails contained microplastics, with significant variability observed among different lagoons.
View Article and Find Full Text PDFPLoS One
December 2024
Bodega Marine Laboratory, California Department of Fish and Wildlife and University of California Davis, Bodega Bay, California, United States of America.
There is increasing awareness that marine invertebrates such as abalones are at risk from the combined stressors of fishing and climate change. Abalones are an important marine fishery resource and of cultural importance to Indigenous and non-Indigenous people. A highly priced marine delicacy, they are inherently vulnerable: individuals are slow-growing and long-lived and successful reproduction requires dense assemblages.
View Article and Find Full Text PDFBMC Genomics
December 2024
Key Laboratory of Mariculture and Stock Enhancement in North China's Sea (Dalian Ocean University), Ministry of Agriculture, Dalian, 116023, China.
In this study, we applied comparative transcriptomics and proteomics techniques to systematically investigate the dynamic expression patterns of genes and proteins at various stages of early embryonic development of the gastropod Neptunea arthritica cumingii. Twelve cyclin-dependent kinase (CDKs) genes and five downstream proteins associated with these CDKs were identified. Through techniques such as qRT-PCR, our data elucidate for the first time the regulatory functions of CDK family genes and establish CDKs as a pivotal gene cluster in the early embryonic development of N.
View Article and Find Full Text PDFProc Biol Sci
December 2024
Department of Biology and Coastal and Marine Institute, San Diego State University, San Diego, CA 92182-4614, USA.
The potential for aquatic gastropods to display phenotypic plasticity in response to predator cues is well documented. However, long-term phenotypic responses to predator exposure are difficult to evaluate at large scales in the field. Thus, the extent to which comparatively dilute predator cues experienced by natural snail populations influence morphometric development and whether energetic costs associated with defensive morphology have allometric impacts on other life-history characteristics is unclear.
View Article and Find Full Text PDFZootaxa
April 2024
Fr.-Ebert-Str 12; 35418 Buseck; GERMANY.
Based on molecular and conchological features, a new genus, Bouchetaria, is proposed for the Cypraeidae species Nesiocypraea aenigma Lorenz 2002. Molecular analysis of cox1 and 16S genes places Bouchetaria within a monophyletic group-composed of the genera Propustularia, Nesiocypraea, Ipsa, Perisserosa, Cryptocypraea, and Nucleolaria-appearing as the sister group to all other living Cypraeidae. This group corresponds to the Erosariinae (sensu Lorenz & Hubert, 1993).
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