Chemotaxis of Arbacia punctulata spermatozoa to resact, a peptide from the egg jelly layer [PDF]
, 1985 Resact, a peptide of known sequence isolated from the jelly layer of Arbacia punctulata eggs, is a potent chemoattractant for A. punctulata spermatozoa. The chemotactic response is concentration dependent, is abolished by pretreatment of the spermatozoa ...
Brokaw, Charles J. +3 more
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Changes of benthic macroinvertebrates in Thi Vai River and Cai Mep Estuaries under polluted conditions with industrial wastewater [PDF]
, 2017 The pollution on the Thi Vai River has been spreading out rapidly over the two lasted decades caused by the wastewater from the industrial parks in the left bank of Thi Vai River and Cai Mep Estuaries.
Duc, Pham Anh +2 more
core
Evidence of an alarm signal in Ophiuroidea (Echinodermata)
Marine Biodiversity Records, 2009 Numerous marine species are able to assess predation risk through chemical signals, and this capacity is usually found among animals that experience intense predation and possess chemoreception ability, such as brittle stars. We investigated the occurrence of chemical alarm signals and responses in four species of brittle stars: Amphipholis squamata ...
Alessandra Pereira Majer +2 more
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A new Devonian asteroid-like ophiuroid from Spain
Geologica Acta, 2015 A Lochkovian (Early Devonian) ophiuroid (Echinodermata), Ophiocantabria elegans n. gen. and sp., is based on a single small, well-preserved specimen collected from a shale-rich horizon of the Furada Formation, Asturias, Spain.
D.B. BLAKE +2 more
doaj
Checklist of the Invertebrate Animals Reported from the Region of Port Aransas, Texas [PDF]
, 1960 This checklist is of preliminary form with the hope that this will be a beginning for a more complete annotated list of the fauna and flora of this region. In many cases this list is quite obviously incomplete, however further work on the taxonomy of
Trott, Lamarr B.
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THE REPRODUCTIVE CYCLE OFGORGONOCEPHALUS CARYI(ECHINODERMATA; OPHIUROIDEA)
The Biological Bulletin, 1969 1. Samples of gonads from Gorgonocephalus caryi collected monthly over a 13-month period were examined histologically to determine the course of the reproductive cycle.2. The reproductive cycle of both sexes was divided into 5 stages: Post-spawning, Early Growth, Resting, Late Growth, and Spawning.
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Tiltaksrettet overvåking av Årdalsfjorden i henhold til vannforskriften. Overvåking for Hydro Aluminium Årdal Karbon, Hydro Aluminium Årdal Metallverk og Norsun [PDF]
, 2016 Alle de fem sedimentstasjonene klassifiseres til «moderat økologisk tilstand» og «ikke god kjemisk tilstand». Bunnfauna gir god tilstand, men overskridelser av EQS-verdien for flere vannregionspesifikke stoffer (hovedsakelig PAH-forbindelser) trekker ...
Borgersen, Gunhild +2 more
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Impactos do pisoteio humano na fauna de um costão rochoso do litoral de São Paulo, no sudeste brasileiro [PDF]
, 2009 Increased tourist activity in coastal regions demands management strategies to reduce impacts on rocky shores. The highly populated coastal areas in southeastern Brazil are an example of degradation caused by development of industry and tourism.
FERREIRA, MN., ROSSO, S.
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Quantitative composition and distribution of the macrobenthic invertebrate fauna of the Continental Shelf ecosystems of the Northeastern United States [PDF]
, 1998 From the mid-1950's to the mid-1960's a series of quantitative surveys of the macrobenthic invertebrate fauna were conducted in the offshore New England region (Maine to Long Island, New York).
Theroux, Roger B., Wigley, Roland L.
core
Ophiuroidea of the Lesser Antilles
, 1963 This paper deals mainly with a collection of ophiuroids from the Lesser Antilles sent to the British Museum (Natural History) by Dr. P. WAGENAAR HUMMELINCK in 1959. The identifications were made by ROSEMARY PARSLOW, but the discussion and figures of Amphiodia and Ophiocomella are by AILSA CLARK. The material was collected in 1948/49 and 1955. Specimens
Parslow, (Rosemary E.) +1 more
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