Selection of an Omnivorous Diet by the Mangrove Tree Crab Aratus Pisonii in Laboratory Experiments ⁎ Amy A
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SENCKENBERG First Observations of Attempted Nudibranch Predation By
Mar Biodiv (2012) 42281-283 DOI 10.1007/S12526-011-0097-9 SENCKENBERG SHORT COMMUNICATION First observations of attempted nudibranch predation by sea anemones Sancia E. T. van der Meij • Bastian T. Reijnen Received: 18 April 2011 /Revised: 1 June2011 /Accepted: 6 June2011 /Published online:24 June2011 © The Author(s) 2011. This article is published with open access at Springerlink.com Abstract On two separate occasions during fieldwork in Material and methods Sempoma (eastern Sabah, Malaysia), sea anemones of the family Edwardsiidae were observed attempting to The observations were made dining fieldwork on coral feed on the nudibranch speciesNembrotha lineolata and reefs in the Sempoma district (eastern Sabah, Malaysia), Phyllidia ocellata. These are the first in situ observations as part of the Sempoma Marine Ecological Expedition in of nudibranch predation by sea anemones. This new December 2010 (SMEE2010). The reported observations record is compared with known information on sea slug were made on Creach Reef (04°18'58.8"N, 118°36T7.3" predators. E) and Pasalat Reef (04°30'47.8"N, 118°44'07.8"E), at approximately 10 m depth for both observations. The Keywords Actiniaria • Coral reef • Nudibranchia • nudibranch identifications were checked against Gosliner Polyceridae • Phylidiidae et al. (2008), whereas the identification of the sea anemone was done by A. Crowtheri No material was collected. Photos were taken with a Canon 400D with a Introduction Sigma 50-mm macro lens. Several organisms are known to prey on sea slugs (Gastropoda: Opisthobranchia), including fish, crabs, Results worms and sea spiders (e.g. Trowbridge 1994; Rogers et al. -
Argiris 1 Color Change in Dolabrifera Dolabrifera (Sea Hare)
Argiris 1 Color change in Dolabrifera dolabrifera (sea hare) in response to substrate change Jennay Argiris Department of Molecular, Cellular and Developmental Biology University of California, Santa Barbara EAP Tropical Biology and Conservation Program, Fall 2017 15 December 2017 ABSTRACT Dolabrifera dolabrifera is an Opisthobranch (sea slug) known for its cryptic coloration. This coloration is an important defense mechanism, but D. dolabrifera have never been studied to see if they change colors to increase their cryptic nature. After photographing 12 D. dolabrifera on different substrates, the color of the slugs and their substrate were determined. These colors were then depicted as hue values. Each D. dolabrifera was photographed three times, in different tide pools and over time. Every D. dolabrifera was graphed with the hue value found for the slug, substrate and reference for the three photographs taken. After analyzing the graphs, I found a correlation between the slug and substrate hue in eight out of the twelve trials. D. dolabrifera changes its color based on its substrate. RESUMEN Dolabrifera dolabrifera es una Opisthobranch (babosa del mar) conocido por su coloración críptica. Esta coloración es un mecanismo de defensa importante, pero nunca se ha estudiado para ver si los D. dolabrifera cambian de color para aumentar su naturaleza críptica. Después de fotografiar 12 D. dolabrifera en diferentes charcas de mareas a través del tiempo, se determine el color de las babosas y su sustrato. Estos colores fueron luego representados como valores de tono. Cada D. dolabrifera fue fotografiada tres veces, en diferentes charcos de mareas y con el tiempo. Cada D. -
Complete Larval and Early Juvenile Development of the Mangrove Crab
JOURNAL OF PLANKTON RESEARCH j VOLUME 26 j NUMBER 12 j PAGES 1389–1408 j 2004 Complete larval and early juvenile development of the mangrove crab Perisesarma fasciatum (Crustacea: Brachyura: Sesarmidae) from Singapore, with a larval comparison of Parasesarma and Perisesarma GUILLERMO GUERAO1*, KLAUS ANGER2, U. W. E. NETTELMANN2 AND CHRISTOPH D. SCHUBART3 1 DEPARTAMENT DE BIOLOGIA ANIMAL (ARTRO` PODES), FACULTAT DE BIOLOGIA (U.B.), AV. DIAGONAL 645, 08028 BARCELONA, SPAIN, 2 ALFRED-WEGENER-INSTITUT FU¨ R POLAR- UND MEERESFORSCHUNG, BIOLOGISCHE ANSTALT HELGOLAND, MEERESSTATION, 27498 HELGOLAND, 3 GERMANY AND BIOLOGIE 1: ZOOLOGIE, UNIVERSITA¨ T REGENSBURG, 93040 REGENSBURG, GERMANY *CORRESPONDING AUTHOR: [email protected] Received January 22, 2004; accepted in principle June 2, 2004; accepted for publication July 13, 2004; published online July 23, 2004 The complete larval development of the sesarmid crab Perisesarma fasciatum (Lanchester, 1900) from Singapore was obtained from laboratory culture. All four zoeal stages, the megalopa and the first crab stage are described and illustrated. The morphological characteristics of the larvae of P. fasciatum are compared with those of other known larvae of the genera Perisesarma and Parasesarma. The larval morphology of P. fasciatum clearly presents the typical combination of features that characterize sesarmid larvae. Overall, larval stages are very similar in Perisesarma and Parasesarma and it is impossible to distinguish these two genera by larval morphology. INTRODUCTION still being revised -
17 the Crabs Belonging to the Grapsoidea Include a Lot Of
17 SUPERFAMILY GRAPSOIDEA The crabs belonging to the Grapsoidea include a lot of ubiquitous species collected in the mangrove and/or along the coastline. As a result, most of the species listed here under the ‘Coastal Rock-rubble’ biotope of table 2b could be reasonably listed also with marine species. This is particularly true for the Grapsidae: Grapsus, Pachygrapsus, Pseudograpsus, and Thalassograpsus. FAMILY GECARCINIDAE Cardisoma carnifex (Herbst, 1796). Figure 12. – Cardisoma carnifex - Guinot, 1967: 289 (Checklist of WIO species, with mention of Grande Comore and Mayotte). - Bouchard, 2009: 6, 8, Mayotte, Malamani mangrove, 16 April 2008, St. 1, 12°55.337 S, 44°09.263 E, upper mangrove in shaded area, burrow, about 1.5 m depth, 1 male 61×74 mm (MNHN B32409). - KUW fieldwork November 2009, St. 6, Petite Terre, Badamiers spillway, upper littoral, 1 female 53×64 mm (MNHN B32410), 1 male 65×75.5 mm (MNHN B32411); St. 29, Ngouja hotel, Mboianatsa beach, in situ photographs only. Distribution. – Widespread in the IWP. Red Sea, Somalia, Kenya, Tanzania, Mozambique, South Africa, Europa, Madagascar, Comoros, Seychelles, Réunion, Mauritius, India, Taiwan, Japan, Australia, New Caledonia, Fiji, Wallis & Futuna, French Polynesia. Comment. – Gecarcinid land crabs are of large size and eaten in some places (West Indies, Wallis & Futuna, and French Polynesia). In Mayotte, however, they are not much prized for food and are not eaten. Figure 12. Cardisoma carnifex. Mayotte, KUW 2009 fieldwork: A) aspect of station 29, upper littoral Ngouja hotel, Mboianatsa beach; B) same, detail of a crab at the entrance of its burrow; C) St. 6, 1 female 53×64 mm (MNHN B32410); D) probably the same specimen, in situ at St. -
As Fast As a Hare: Colonization of the Heterobranch Aplysia Dactylomela (Mollusca: Gastropoda: Anaspidea) Into the Western Mediterranean Sea
Cah. Biol. Mar. (2017) 58 : 341-345 DOI: 10.21411/CBM.A.97547B71 As fast as a hare: colonization of the heterobranch Aplysia dactylomela (Mollusca: Gastropoda: Anaspidea) into the western Mediterranean Sea Juan MOLES1,2, Guillem MAS2, Irene FIGUEROA2, Robert FERNÁNDEZ-VILERT2, Xavier SALVADOR2 and Joan GIMÉNEZ2,3 (1) Department of Evolutionary Biology, Ecology, and Environmental Sciences and Biodiversity Research Institute (IrBIO), University of Barcelona, Av. Diagonal 645, 08028 Barcelona, Catalonia, Spain E-mail: [email protected] (2) Catalan Opisthobranch Research Group (GROC), Mas Castellar, 17773 Pontós, Catalonia, Spain (3) Department of Conservation Biology, Estación Biológica de Doñana (EBD-CSIC), Americo Vespucio 26 Isla Cartuja, 42092 Seville, Andalucía, Spain Abstract: The marine cryptogenic species Aplysia dactylomela was recorded in the Mediterranean Sea in 2002 for the first time. Since then, this species has rapidly colonized the eastern Mediterranean, successfully establishing stable populations in the area. Aplysia dactylomela is a heterobranch mollusc found in the Atlantic Ocean, and commonly known as the spotted sea hare. This species is a voracious herbivorous with generalist feeding habits, possessing efficient chemical defence strategies. These facts probably promoted the acclimatation of this species in the Mediterranean ecosystems. Here, we report three new records of this species in the Balearic Islands and Catalan coast (NE Spain). This data was available due to the use of citizen science platforms such as GROC (Catalan Opisthobranch Research Group). These are the first records of this species in Spain and the third in the western Mediterranean Sea, thus reinforcing the efficient, fast, and progressive colonization ability of this sea hare. -
The Crabs from Mayotte Island (Crustacea, Decapoda, Brachyura)
THE CRABS FROM MAYOTTE ISLAND (CRUSTACEA, DECAPODA, BRACHYURA) Joseph Poupin, Régis Cleva, Jean-Marie Bouchard, Vincent Dinhut, and Jacques Dumas Atoll Research Bulletin No. 617 1 May 2018 Washington, D.C. All statements made in papers published in the Atoll Research Bulletin are the sole responsibility of the authors and do not necessarily represent the views of the Smithsonian Institution or of the editors of the bulletin. Articles submitted for publication in the Atoll Research Bulletin should be original papers and must be made available by authors for open access publication. Manuscripts should be consistent with the “Author Formatting Guidelines for Publication in the Atoll Research Bulletin.” All submissions to the bulletin are peer reviewed and, after revision, are evaluated prior to acceptance and publication through the publisher’s open access portal, Open SI (http://opensi.si.edu). Published by SMITHSONIAN INSTITUTION SCHOLARLY PRESS P.O. Box 37012, MRC 957 Washington, D.C. 20013-7012 https://scholarlypress.si.edu/ The rights to all text and images in this publication are owned either by the contributing authors or by third parties. Fair use of materials is permitted for personal, educational, or noncommercial purposes. Users must cite author and source of content, must not alter or modify the content, and must comply with all other terms or restrictions that may be applicable. Users are responsible for securing permission from a rights holder for any other use. ISSN: 0077-5630 (online) This work is dedicated to our friend Alain Crosnier, great contributor for crab sampling in Mayotte region between 1958-1971 and author of several important taxonomic contributions in the region. -
Aplysia Dactylomela Ordine Anaspidea Rang, 1828 Famiglia Aplysiidae
Identificazione e distribuzione nei mari italiani di specie non indigene Classe Gastropoda Aplysia dactylomela Ordine Anaspidea Rang, 1828 Famiglia Aplysiidae SINONIMI RILEVANTI Nessuno. DESCRIZIONE COROLOGIA / AFFINITA’ Senza dati. Animale di grandi dimensioni, presenta anelli di forma irregolare distribuiti su tutto il corpo. Parapodi molto sviluppati. DISTRIBUZIONE ATTUALE Circumtropicale, Mediterraneo: Italia, Grecia, Cipro, Turchia, Israele COLORAZIONE Il colore base è verde con gli anelli di colore scuro. PRIMA SEGNALAZIONE IN MEDITERRANEO 2002, Lampedusa (IT) (Trainito, 2005). FORMULA MERISTICA - PRIMA SEGNALAZIONE IN ITALIA TAGLIA MASSIMA 2002, Lampedusa (IT) (Trainito, 2005). - ORIGINE STADI LARVALI Indo-Pacifico. - SPECIE SIMILI VIE DI DISPERSIONE PRIMARIE Traffici marittimi. - CARATTERI DISTINTIVI VIE DI DISPERSIONE SECONDARIE - - STATO DELL ’INVASIONE Insediato. Identificazione e distribuzione nei mari italiani di specie non indigene HABITAT MOTIVI DEL SUCCESSO Sconosciuti. Gli individui trovati a Lampedusa sono stati rinvenuti ad una profondità di 4 metri su un SPECIE IN COMPETIZIONE substrato misto di Posidonia oceanica e Caulerpa racemosa . - Nel mese di ottobre 2002 un esemplare di A. IMPATTI dactylomela è stato rinvenuto in una pozza di scogliera ad Acitrezza (Sicilia orientale) (Scuderi - et al., 2004). DANNI ECOLOGICI - PARTICOLARI CONDIZIONI AMBIENTALI Sconosciute. DANNI ECONOMICI - BIOLOGIA Sconosciuta. IMPORTANZA PER L ’UOMO Sconosciuta BANCA DEI CAMPIONI - PRESENZA IN G -BANK - PROVENIENZA DEL CAMPIONE TIPOLOGIA : (MUSCOLO / ESEMPLARE INTERO / CONGELATO / FISSATO ECC ) LUOGO DI CONSERVAZIONE CODICE CAMPIONE Identificazione e distribuzione nei mari italiani di specie non indigene BIBLIOGRAFIA Cinar M.E., Bilecenoglu M., Ozturk B., Can A., 2006 - New records of alien species on the Levantine coast of Turkey. Aquatic Invasion, 1(2): 84-90. Eales N.B., 1957 - Revision of the species of Aplysia of the Museum National d'histoire naturelle (Malacologie), Paris. -
Redalyc.Population and Life History Features of the Crab Aratus Pisonii
Interciencia ISSN: 0378-1844 [email protected] Asociación Interciencia Venezuela Conde, J. E.; Tognella, M. M. P.; Paes, E. T.; Soares, M. L. G.; Louro, I. A.; Schaeffer Novelli, Y. Population and life history features of the crab aratus pisonii (decapoda: grapsidae) in a subtropical estuary Interciencia, vol. 25, núm. 3, mayo-junio, 2000, pp. 151-158 Asociación Interciencia Caracas, Venezuela Available in: http://www.redalyc.org/articulo.oa?id=33904505 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative COMUNICACIONES REPORTS COMUNICAÇÕES POPULATION AND LIFE HISTORY FEATURES OF THE CRAB ARATUS PISONII (DECAPODA: GRAPSIDAE) IN A SUBTROPICAL ESTUARY J. E. Conde1, M. M. P. Tognella2, E. T. Paes2, M. L. G. Soares2, I. A. Louro2 and Y. Schaeffer-Novelli2 SUMMARY Population features of the grapsid crab Aratus pisonii, a similar in the two study sites: 1.63 individuals/m2 in Bertioga-D common inhabitant of the supralittoral zone of roots, branches and 1.41 in Bertioga-Cidade. Females were significantly more and canopy of several species of mangroves, were studied in abundant than males in a ratio of 1.168:1.00 in Bertioga-D, and two estuarine mangrove forests near Bertioga, São Paulo, Bra- 1.153:1.00 in Bertioga-Cidade. J-shaped sex ratio curves were zil. Crabs were larger in Bertioga-D (range: 8.85 - 26.20 mm), observed for both populations. Juvenile crabs were present at where a well-developed mangrove forest is present, than in both locations, but they were much more abundant in Bertioga- nearby Bertioga-Cidade (range: 3.80 - 20.85 mm), where Cidade (34.8%) than in Bertioga-D (3.9%), possibly as a conse- arbustive and stunted mangrove trees prevailed. -
Comparative Study of Spectral Sensitivity, Irradiance Sensitivity
Nova Southeastern University NSUWorks All HCAS Student Capstones, Theses, and Dissertations HCAS Student Theses and Dissertations 5-11-2020 Comparative Study of Spectral Sensitivity, Irradiance Sensitivity, Spatial Resolution and Temporal Resolution in the Visual Systems of Aratus pisonii and Ocypode quadrata Ruchao Qian Nova Southeastern University Follow this and additional works at: https://nsuworks.nova.edu/hcas_etd_all Part of the Comparative and Evolutionary Physiology Commons, Integrative Biology Commons, and the Marine Biology Commons Share Feedback About This Item NSUWorks Citation Ruchao Qian. 2020. Comparative Study of Spectral Sensitivity, Irradiance Sensitivity, Spatial Resolution and Temporal Resolution in the Visual Systems of Aratus pisonii and Ocypode quadrata. Master's thesis. Nova Southeastern University. Retrieved from NSUWorks, . (46) https://nsuworks.nova.edu/hcas_etd_all/46. This Thesis is brought to you by the HCAS Student Theses and Dissertations at NSUWorks. It has been accepted for inclusion in All HCAS Student Capstones, Theses, and Dissertations by an authorized administrator of NSUWorks. For more information, please contact [email protected]. Thesis of Ruchao Qian Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Science Marine Science Nova Southeastern University Halmos College of Arts and Sciences May 2020 Approved: Thesis Committee Committee Chair: Tamara Frank, Ph.D. Committee Member: Patricia Blackwelder, Ph.D. Committee Member: Heather Bracken-Grissom, Ph.D. This thesis -
Ở Rừng Ngập Mặn Huyện Cù
Khoa học Tự nhiên Thành phần loài và phân bố của các loài cua (Crustacea: Decapoda: Brachyura) ở rừng ngập mặn huyện Cù Lao Dung, Sóc Trăng 1* 1 1 2 Lê Văn Thọ , Đặng Văn Sơn , Nguyễn Thị Mai Hương1, Phan Doãn Đăng , Trần Ngọc Diễm My 1Viện Sinh học nhiệt đới, Viện Hàn lâm KH&CN Việt Nam 2Trường Đại học Khoa học Tự nhiên, Đại học Quốc gia TP Hồ Chí Minh Ngày nhận bài 8/1/2020; ngày chuyển phản biện 16/1/2020; ngày nhận phản biện 3/3/2020; ngày chấp nhận đăng 26/3/2020 Tóm tắt: Cua (Brachyuran crabs) là nhóm giáp xác (Crustacea) có thành phần loài đa dạng, phân bố rộng và giữ vai trò sinh thái quan trọng ở khu vực rừng ngập mặn (mangrove forest area). Trong nghiên cứu này, các mẫu cua được thu tại 12 điểm nghiên cứu thuộc hai kiểu sinh cảnh, gồm: sinh cảnh rừng ngập mặn và sinh cảnh bãi bồi ở khu vực rừng ngập mặn thuộc huyện Cù Lao Dung, tỉnh Sóc Trăng vào tháng 4 (mùa khô) và tháng 9 (mùa mưa) năm 2019. Kết quả nghiên cứu đã xác định được 34 loài thuộc 17 giống, 7 họ. Trong đó, họ Ocypodidae có đa dạng loài lớn nhất với 11 loài, tiếp theo là họ Sesarmidae (7 loài), Portunidae (6 loài), Varunidae (4 loài), Grapsidae (3 loài), Matutidae (2 loài) và thấp nhất là họ Xanthidae chỉ ghi nhận được 1 loài. Đa dạng loài và mật độ quần thể cua tại sinh cảnh rừng ngập mặn (ghi nhận 26 loài và mật độ dao động từ 34,0±8,4 đến 53,8±15,4 cá thể/m2) cao hơn tại sinh cảnh bãi bồi (ghi nhận được 15 loài và mật độ dao động từ 12,4±1,9 đến 13,6±3,6 cá thể/m2). -
Brood Loss and Sperm Limitation in Aratus Pisonii, the Mangrove Tree Crab Austen Walker, Connor Bird, Blaine D
Brood Loss and Sperm Limitation in Aratus pisonii, the Mangrove Tree Crab Austen Walker, Connor Bird, Blaine D. Griffen Biology Department, Brigham Young University Purpose Results To investigate the possible loss of eggs and potential for sperm limitation in Aratus pisonii, the mangrove tree Clutch Size Throughout Egg Development and Egg development by crab. the Reproductive Period Carapace Width sampling date 0.95 Introduction 0.95 Egg loss can occur at any point during the reproductive period. Several past studies document egg loss across a 1200 variety of crustaceans. The mangrove tree crab is expected to experience high egg loss, due to it’s constant 0.85 0.85 climbing on tree limbs. Egg production and loss provide valuable insight into the reproductive physiology and 600 the mangrove tree crab and its ecology as an important part of the mangrove ecosystem. (Boudreau et al. 2012). /size Clutch 10 0.75 200 This species is also currently expanding it’s range due to climate change, and egg loss will factor into the rate of 0.75 14 16 18 20 22 24 of Proportion developing eggs 150 200 250 300 population growth in northern regions of its expanding range. Secondarily, we also look for evidence of sperm 14 16 18 20 22 24 Proportion of Proportion developing eggs limitation, when there is insufficient sperm to fertilize all eggs produced by the females. If sperm limitation is Carapace width (mm) Carapace width (mm) Julian sampling date occurring, the reproductive potential of a population would be limited, and could hamper its ability to keep pace with environmental changes. -
Recent Advances and Unanswered Questions in Deep Molluscan Phylogenetics Author(S): Kevin M
Recent Advances and Unanswered Questions in Deep Molluscan Phylogenetics Author(s): Kevin M. Kocot Source: American Malacological Bulletin, 31(1):195-208. 2013. Published By: American Malacological Society DOI: http://dx.doi.org/10.4003/006.031.0112 URL: http://www.bioone.org/doi/full/10.4003/006.031.0112 BioOne (www.bioone.org) is a nonprofit, online aggregation of core research in the biological, ecological, and environmental sciences. BioOne provides a sustainable online platform for over 170 journals and books published by nonprofit societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Web site, and all posted and associated content indicates your acceptance of BioOne’s Terms of Use, available at www.bioone.org/page/terms_of_use. Usage of BioOne content is strictly limited to personal, educational, and non-commercial use. Commercial inquiries or rights and permissions requests should be directed to the individual publisher as copyright holder. BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research. Amer. Malac. Bull. 31(1): 195–208 (2013) Recent advances and unanswered questions in deep molluscan phylogenetics* Kevin M. Kocot Auburn University, Department of Biological Sciences, 101 Rouse Life Sciences, Auburn University, Auburn, Alabama 36849, U.S.A. Correspondence, Kevin M. Kocot: [email protected] Abstract. Despite the diversity and importance of Mollusca, evolutionary relationships among the eight major lineages have been a longstanding unanswered question in Malacology. Early molecular studies of deep molluscan phylogeny, largely based on nuclear ribosomal gene data, as well as morphological cladistic analyses largely failed to provide robust hypotheses of relationships among major lineages.