
显示样式: 排序: IF: - GO 导出
-
Fluorescent protein expression in temperature tolerant and susceptible reef-building corals J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-03-02 Exequiel Gabriel S. Dizon; Jeric P. Da-Anoy; Melissa S. Roth; Cecilia Conaco
Fluorescent proteins (FPs) are reported to play an important role as photoprotectants and antioxidants in corals subjected to stressful conditions. Identifying the various FP genes expressed and FP gene expression patterns under stress in diverse coral species can provide insight into FP function. In this study, we identified 16 putative FP homologues from the transcriptomes of corals with varying
-
Opsanus beta (Goode & Bean, 1880) (Acanthopterygii: Batrachoididae), a non-indigenous toadfish in Sepetiba Bay, south-eastern Brazil J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-02-26 Magda F. Andrade-Tubino; Fernando Luiz K. Salgado; Wagner Uehara; Ricardo Utsunomia; Francisco Gerson Araújo
The introduction of non-native predator fish is thought to have important negative effects on native prey populations. Opsanus beta is a non-native toadfish that was originally described in the Gulf of Mexico, between the west coast of Florida and Belize. In the present study, we describe, for the first time, the occurrence of O. beta in Sepetiba Bay (22°55′S), south-eastern Brazil, probably brought
-
The influence of invasive ascidian diets on the growth of the sea star Henricia sanguinolenta J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-02-23 Kaitlin S. Van Volkom; Larry G. Harris; Jennifer A. Dijkstra
Invasive species can disrupt food webs by altering the abundance of prey species or integrating into the food web themselves. In the Gulf of Maine, there have been a suite of invasions that have altered the composition of the benthic ecosystem. These novel prey species can potentially benefit native predators depending on their nutritional value and relative abundance. We measured feeding instances
-
Description and phylogenetic relationships of a new genus of Planoceridae (Polycladida, Acotylea) from Shimoda, Japan J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-02-22 Yuki Oya; Hiroshi Kajihara
We establish a new genus of planocerid polyclad, Heteroplanocera gen. nov., based on a new species, H. katoi sp. nov., collected at a depth of 245 m off the coast of the Izu Peninsula, West Pacific, Japan. Heteroplanocera gen. nov. is distinguished from other planocerid genera by the following characteristics: (i) a pair of nuchal tentacles, (ii) a muscular bulb, (iii) a pair of spermiducal bulbs (instead
-
Population differentiation in the Persian Gulf and Gulf of Oman: insights from the ghost shrimp's associated copepods, Clausidium iranensis and Clausidium persiaensis J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-02-19 Vahid Sepahvand; Alireza Keikhosravi; Terue Cristina Kihara
Evolution and population genetic structure of marine species across the Persian Gulf and Gulf of Oman are shaped by two complex factors: the geological history and the present pattern of marine currents. Characterizing and comparing the genetic structures of co-existing species, such as host–parasite associations, allow the discrimination of the relative importance of environmental factors and life
-
Distribution of antifouling biocides in a coastal area of Tanabe Bay, Japan J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-02-15 Hiroya Harino; Shigeyuki Yamato
Tributyltin (TBT) and triphenyltin (TPT) concentrations in water samples from Tanabe Bay were found to range from 4–28 ng l−1 and 3–7 ng l−1, respectively. In fishing ports, the concentrations of TBT in surface water were similar to those in bottom water. However, in aquafarming areas with poor flushing, the concentrations of TBT in bottom water were higher than those in surface water. This suggested
-
Ontogenetic shifts and sexual dimorphism in the brain organization of the small-spotted catshark Scyliorhinus canicula J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-02-11 Ioannis Roussos; Persefoni Megalofonou
In this study, we investigated ontogenetic and sexual changes of the brain scaling as well as the scaling and the relative size of six major brain areas in the small-spotted catshark Scyliorhinus canicula from the Mediterranean Sea. The brain somatic index (0.31–1.25%) did not differ significantly between sexes but was significantly affected by size with smaller specimens exhibiting higher values.
-
Design and implementation of two surveys targeted at describing fouling communities and identifying non-native species within active ports J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-12-15 Samuel Holmes; Ruth Callaway
Ports have long been considered ‘high-risk’ areas for the introduction of non-native species (NNS) and should therefore be a focus of NNS monitoring. The industrial nature of active ports can, however, provide various problems when attempting to carry out monitoring programmes. Current methodologies designed to identify NNS and to describe fouling communities have not been developed specifically for
-
Calcareous meiofauna associated with the calcareous alga Corallina officinalis on bedrock and boulder-field shores of Ceredigion, Wales, UK J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-12-23 Brent Wilson; Lee-Ann C. Hayek
The intertidal coastline of Ceredigion, Wales, comprises a patchwork of unstable sand and cobble beaches, and stable bedrock areas and boulder-fields. The last two shoreline types support rock-pools with growths of the red alga Corallina officinalis, the thalli of which are a popular substrate for calcareous epiphytes. Replicate samples of C. officinalis (four per site) were taken from (a) three bedrock
-
Species composition and habitat preferences of benthic ostracod and foraminifera in seagrass and non-seagrass systems within a tropical estuary J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-12-10 Chandran Raynusha; Mohammad Rozaimi; Ramlan Omar; Noraswana Nor Faiz; Nur Munirah Hesan; Syarifah Nor Hanis; Siti Aisyah Abdullah; Eizyan Izzati
Ostracods and foraminifera are excellent indicators of environmental change and can act as proxies for the presence of seagrass meadows. These proxies have been under-utilized in vulnerable coastal ecosystems in South-east Asia, and the fundamental habitat and environmental parameters required for such application in environmental monitoring have not yet been established. We investigated the habitat
-
Poorly known sponges in the Mediterranean with the detection of some taxonomic inconsistencies J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-12-10 Julio A. Díaz; Sergio Ramírez-Amaro; Francesc Ordines; Paco Cárdenas; Pere Ferriol; Bàrbara Terrasa; Enric Massutí
The poorly known sponge species Axinella vellerea (Topsent, 1904), Acarnus levii (Vacelet, 1960) and Haliclona poecillastroides (Vacelet, 1969) are reported from bottom-trawl samples off the Balearic Islands, Western Mediterranean. A re-description is provided for all three species and the Folmer fragment of cytochrome oxidase subunit I (COI) obtained for A. levii and H. poecillastroides. This is the
-
Distribution and abundance of turritelline gastropods (Cerithioidea: Turritellidae) in Hong Kong and the English Channel: implications for a characteristic fossil assemblage J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-12-28 Caren P. Shin; Warren D. Allmon; Brendan M. Anderson; Bridget T. Kelly; Keith Hiscock; Paul K.S. Shin
Abundant species are typically also viewed as ecologically dominant, and are frequently used to characterize the communities in which they live. Such characteristic assemblages may also be used as indicators of environmental conditions, such as relative stability. Fossil and modern turritelline gastropods are often the most abundant species in the marine assemblages and communities in which they occur
-
Morphometry of the shell in Scaphopoda (Mollusca): a tool for the discrimination of taxa J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-12-29 Leonardo Santos de Souza; Carlos Henrique Soares Caetano
The alpha taxonomy of scaphopods is based mainly on the shell morphology, as it is for most molluscs. In the last three decades, the employment of morphometric variables of the shell in combination with statistics has considerably increased to aid species discrimination, but this has not been used above species level. In this study, a traditional morphometric approach was used to distinguish congeners
-
Abundance, placement and sexual identity of the epizoic barnacle Chelonibia testudinaria relative to the size and species of host turtles in Mabul Island, Malaysia J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-01-15 Kah Kheng Lim; Muhammad Ali Syed Hussein; Pushpa Palaniappan
Sea turtles are partners in commensal relationships with a variety of epibionts, including barnacles. The acorn barnacle Chelonibia testudinaria is one species commonly found associated with sea turtles and other marine fauna throughout temperate to tropical waters including the Indo-Pacific. We conducted a study to assess the occurrence of this barnacle, relative to host life stage and species in
-
Unveiling the dynamics of the spider crab Libinia ferreirae, through reproductive and population characteristics on the south-eastern coast of Brazil J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-01-07 Aline Nonato de Sousa; Veronica Pereira Bernardes; Camila Hipolito Bernardo; Gustavo Monteiro Teixeira; Alexandre de Oliveira Marques; Adilson Fransozo
We investigated the population dynamics of the spider crab Libinia ferreirae, focusing on the frequency distribution of individuals in size classes, sex ratio and the action of environmental variables (temperature, salinity, texture and organic matter content in the sediment) on reproduction and recruitment. Monthly collections were made in the Ubatuba region from January 1998 to December 2000. A total
-
Effects of season and mesh size on the selection of narrow-barred Spanish mackerel, Scomberomorus commerson in the Persian Gulf artisanal gillnet fishery J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-01-07 Mojtaba Pouladi; Seyed Yousef Paighambari; Matt K. Broadhurst; Russell B. Millar; Morteza Eighani
In response to perceived, but unknown variation among the size selection of narrow-barred Spanish mackerel (Scomberomorus commerson) by artisanal gillnetters off Iran, and the need for such data to control exploitation as a precursor to balanced harvesting, the effects of two common mesh sizes (130 and 140 mm stretched mesh opening made from multifilament twine) on catches were investigated over one
-
Morphometrics of 39 fishes from the Seychelles artisanal fisheries J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-01-18 Nathalie Bodin; Rodney Govinden; Andrew Souffre; Pierre-André Adam; Matthew Morgan; Tom Collier; Jennifer Appoo; April J. Burt; Cheryl Sanchez; Frauke Fleischer-Dogley; Emmanuel Chassot
A total of 5478 fishes were sampled between 2009 and 2020 to assess length–weight, length–length and weight–weight relationships in 39 marine species from 10 families caught in the Seychelles waters by the artisanal fishery. Two types of length (total length TL, fork length FL) and three types of weight (whole weight WT, gutted weight GW and gilled-gutted weight GGW) were measured. The parameters of
-
Reproductive biology and placentotrophic embryonic development of the smalleye smooth-hound shark, Mustelus higmani, from the south-eastern Caribbean J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-12-11 Marioxis Macías-Cuyare; Rafael Tavares; Maria Cristina Oddone
The reproductive biology and embryonic development of Mustelus higmani were examined between January 2015 and December 2016 in the south-eastern Caribbean. Captures comprised 813 females (23.2–72.5 cm TL), and 960 males (22.6–62.5 cm TL). The total length at 50% maturity was estimated as 47.8 and 47.5 cm for females and males, respectively. Uterine fecundity ranged from 1 to 8 embryos and ovarian fecundity
-
Variation in size distribution of juvenile pink shrimps Farfantepenaeus brasiliensis and F. paulensis in the estuarine-adjacent ocean area of Cananéia, south-eastern coast of Brazil J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-02-10 Dalilla da Silva Salvati; Júlia Fernandes Perroca; Sabrina Morilhas Simões; Antonio Leão Castilho; Rogerio Caetano da Costa
The study characterized the structure of juveniles and sub-adults of Farfantepenaeus brasiliensis and F. paulensis in the Cananéia-Iguape estuarine lagoon system and its adjacent coastal area by evaluating the period of juvenile recruitment, sex ratio, growth, longevity, natural mortality, and development time until the late juvenile phase. Samples were collected from July 2012 to June 2014. Shrimps
-
Preliminary observations on abundance and distribution of fish fauna in a canyon of the Bay of Biscay (ICES Division 8c) J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-02-09 G. Diez; L. Arregi; M. Basterretxea; E. Cuende; I. Oyarzabal
The changes in abundance and biodiversity of deep-sea fish fauna are described based on an annual deep-water longline survey with data collected during the period 2015–2019 in the Basque Country continental Slope (ICES Division 8c). The sampling scheme included hauls in four 400 m strata, from 650–2250 m deep. The DST sensors installed in the main line have allowed us to set an accurate soak time for
-
Effects of habitat structure on the mollusc assemblage in Mussismilia corals: evaluation of the influence of different coral growth morphology J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-02-08 M. M. Nogueira; E. Neves; R. Johnsson
Habitat structure increases richness and abundance of species in many environments by providing easy access to resources and refuge from predators. In coral reefs, corals are habitat for many organisms and differences in their morphologies may act as variation in habitat structure for associated fauna. In the present study, we investigate whether there are differences in the richness and abundance
-
Population structure and reproductive performance in the sea anemone associated shrimp Ancylocaris brevicarpalis (Caridea: Palaemonidae) J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-02-08 Sanjeevi Prakash; Ampuli Muthu; Amit Kumar
The peacock-tail shrimp Ancylocaris brevicarpalis Schenkel, 1902, is an obligate symbiont of sea anemones and well known for its remarkable colouration. Yet, very little information is available about its population structure and life-history traits, including reproductive parameters (fecundity, embryo volume and reproductive output). A total of 574 individuals were collected from the Gulf of Mannar
-
Reproductive strategies under different environmental conditions: total output vs investment per egg in the slipper lobster Scyllarus arctus J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-02-08 L. Fernández; C. García-Soler; I. Alborés
The slipper lobster Scyllarus arctus is an important fishery resource in Galicia (NW Iberian Peninsula), with a large reduction of its populations in recent decades in the North-east Atlantic and Mediterranean, but only limited information on its reproduction. This study provides an analysis of the reproductive potential of this scyllarid during two breeding cycles (2008 and 2009) in the NE Atlantic
-
Adipose tissue fatty acids suggest spatial and temporal dietary differences in great cormorants of the Baltic Sea area J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-02-01 Malin Tverin; Janne Granroth; Alexander Abrahamsson; Patrik Tang; Henry Pihlström; Karl Lundström; Reijo Käkelä
Increased numbers of great cormorants (Phalacrocorax carbo) in the Baltic Sea may have local impacts on fisheries and salmonid hatcheries. We studied spatial and temporal variability in cormorant diet, and potential consumption of hatchery salmonids, by analysing knee subcutaneous adipose tissue fatty acids (FA) of specimens (N = 77) collected along Swedish and Finnish coasts in different seasons during
-
A review of cephalopods (Phylum: Mollusca) of the Canary Current Large Marine Ecosystem (Central-East Atlantic, African coast) J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-01-25 Amanda Luna; Francisco Rocha; Catalina Perales-Raya
An extensive review of cephalopod fauna in the Central and North Atlantic coast of Africa was performed based on material collected during 10 research cruises in these waters. In the Canary Current Large Marine Ecosystem (CCLME) area, a total of 378,377 cephalopod specimens was collected from 1247 bottom trawl stations. Of those specimens, 300 were sampled for subsequent identification in the laboratory
-
Molecular and phylogenetic analysis reveals new diversity of Dunaliella salina from hypersaline environments J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-01-22 Andrea Highfield; Angela Ward; Richard Pipe; Declan C. Schroeder
Twelve hyper-β carotene-producing strains of algae assigned to the genus Dunaliella salina have been isolated from various hypersaline environments in Israel, South Africa, Namibia and Spain. Intron-sizing of the SSU rDNA and phylogenetic analysis of these isolates were undertaken using four commonly employed markers for genotyping, LSU rDNA, ITS, rbcL and tufA and their application to the study of
-
Response of a southern rock lobster (Jasus edwardsii) population to three years of Marine Protected Area implementation within South Australia J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-01-21 Lachlan McLeay; Adrian Linnane; Richard McGarvey; Simon Bryars; Peter Hawthorne
The Western Kangaroo Island Marine Park (WKIMP) was declared as part of South Australia's representative system of Marine Protected Areas in 2009. Sanctuary Zone 3 (SZ-3) of the WKIMP is a no-take area protected from fishing since 1 October 2014 and is located within the Northern Zone Rock Lobster Fishery (NZRLF). In February 2017, a dedicated survey was undertaken to estimate the relative abundance
-
Age, growth and mortality of the striped seabream Lithognathus mormyrus (Linnaeus, 1758) in the Gulf of Tunis (Central Mediterranean Sea) J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-01-14 Asma Khaldi; Ines Chater; Romain Elleboode; Kélig Mahé; Nadia Chakroun-Marzouk
Despite the high commercial value of the striped seabream Lithognathus mormyrus (Linnaeus, 1758) in the Gulf of Tunis, biological data on its age, growth and exploitation rate are lacking. With the aim of estimating growth parameters, 516 individuals, ranging from 6–27.5 cm total length and from 3.5–293.5 g total weight, were collected from the artisanal fishing fleet between February 2014 and July
-
The community structure of hyperiid amphipods associated with two seamount regions in the South-east Pacific J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-01-14 Liliana Espinosa-Leal; Johanna Medellín-Mora; Andrea Corredor-Acosta; Rubén Escribano
Oceanic islands and seamounts are considered biodiversity hotspots. Here, we present a taxonomy and community analyses of hyperiid amphipods collected near oceanic islands and over seamounts of the Juan Fernández Archipelago and Desventuradas Archipelago in the South-east Pacific. Both archipelagos are separated by about 800 km over the meridional gradient, suggesting the existence of different hyperiid
-
Seasonal variation of water-column light utilization efficiency for primary production in Saroma-ko Lagoon J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2021-01-13 Akihiro Shiomoto; Yushi Kamuro
In Saroma-ko Lagoon, where scallop aquaculture is a thriving commercial activity, monitoring primary production is essential for determining the amount of scallops that can be farmed. Using the primary production data obtained so far, we calculated Ψ, an index of water-column light utilization efficiency, and clarified its seasonal variation. Ψ tended to be lower in the spring bloom season (February–April)
-
Rocky shores as tractable test systems for experimental ecology J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-11-24 Stephen J. Hawkins; Kathryn E. Pack; Kieran Hyder; Lisandro Benedetti-Cecchi; Stuart R. Jenkins
Rocky shore ecology has been studied for a long time, starting with qualitative descriptions and becoming more quantitative and experimental over time. Some of the earliest manipulative experimental ecological studies were undertaken on rocky shores. Many, over time, have made considerable contributions to ecological theory, especially highlighting the importance of biological interactions at the community
-
Stress responses of the green microalga, Dunaliella salina to PEG-induced drought J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-10-29 Fatemeh Tafvizi; Seyed Ali Hosseini Tafreshi; Zeinab Toluei; Mohammad Amin Toghyani
Drought stress was evaluated with polyethylene glycol 6000 (PEG 6000) treatment in Dunaliella salina, a microalga known for its great ability to withstand salinities of more than 30%. The aim was to explore the acclimation mechanisms used by the microalga to regulate its growth and physiology during coping with drought stress. The microalga was subjected to culture mediums containing 2 and 5% PEG for
-
Changes in phytoplankton composition of the Golden Horn Estuary (Sea of Marmara) following remediation J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-11-11 Seyfettin Tas
Changes in phytoplankton composition of the Golden Horn Estuary were investigated following remediation, through seawater transfer from the Strait of Istanbul to the estuary. Average values of Secchi depth, salinity and dissolved oxygen increased during this study when compared with a previous study. The average number of species (S) and species diversity (H′) increased and they correlated positively
-
Temporal variation in the recruitment of calcareous sponges (Porifera, Calcarea) in Todos os Santos Bay, tropical Brazilian coast J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-11-24 C. Chagas; F. Barros; F. F. Cavalcanti
Recruitment is related to the occupation of the substrate by fouling organisms. It plays an important role in the maintenance and distribution of benthic populations, being under the influence of biotic and abiotic factors. In the present work, the recruitment of calcareous sponges was monitored over two years in a marina at Todos os Santos Bay, a large bay in the tropical portion of the Brazilian
-
Moonsnail hatching success, development timing and early feeding behaviour at the high-latitude White Sea J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-11-24 Dmitriy Aristov; Lyudmila Flachinskaya; Marina Varfolomeeva
As predators, Naticidae (Gastropoda) can shape marine soft-sediment communities. Thus understanding of the reproductive biology and development of moonsnails is of great importance. Most moonsnails lay large egg masses, known as sand or egg collars, which are freely distributed on sand or muddy sediments. Here we report upon the abundance of egg collars of two naticid species, Amauropsis islandica
-
Biogeography of intertidal and subtidal native and invasive barnacles in Korea in relation to oceanographic current ecoregions and global climatic changes J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-11-05 Hyun Kyong Kim; Benny K. K. Chan; Sang-kyu Lee; Won Kim
The coastline of the Korean Peninsula is influenced by three major oceanographic ecoregions, including the estuarine Yellow Sea ecoregion on the west coast, the warmer and saline East China Sea ecoregion on the south coast, and the cold East Sea ecoregion on the east coast. The influence of these marine ecoregions on the distribution of intertidal barnacles has not been extensively studied. The present
-
Comparative cleaning behaviour of Pederson's cleaner shrimp (Ancylomenes pedersoni) between geographically close yet ecologically dissimilar coral reef habitats J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-11-03 Joseph J. Romain; Dan A. Exton; David J. Smith; Amelia Rose; Clayton Vondriska; Benjamin M. Titus
Cleaning mutualisms are important interactions on coral reefs. Intraspecific variation in cleaning rate and behaviour occurs geographically and is often attributed to local processes. However, our understanding of fine-scale variation is limited, but would allow us to control for geography and region-specific behavioural patterns. Here, we compare the cleaning activity of Pederson's cleaner shrimp
-
Colour variation of the intertidal hermit crab Clibanarius virescens considering growth stage, geographic area in the Indo–West Pacific Ocean, and molecular phylogeny J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-11-24 Akihiro Yoshikawa; Kazuho Ikeo; Junichi Imoto; Wachirah Jaingam; Lily Surayya Eka Putri; Mardiansyah; Tomoyuki Nakano; Michitaka Shimomura; Akira Asakura
Members of Clibanarius virescens show considerable intraspecific colour variation, including colouration of the second/third pereopods (green/white) and the dactyls of the second/third pereopods (with or without dark bands/patches). However, factors inducing these colour variations have not yet been elucidated. Here, we investigated the occurrence of colour variation in this species with particular
-
Irregular recruitment of the echinoid Echinocyamus pusillus and its implications for biological traits analysis J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-11-04 Richard M. Warwick; Bryony Pearce
Size-frequency analysis of the echinoid Echinocyamus pusillus from six offshore areas in the southern North Sea and eastern English Channel reveal five distinct cohorts, suggesting a lifespan of five years. In all six individual areas one or more year-groups are absent, due to the unsuccessful recruitment of planktonic larvae to the seabed in some years, giving a false impression of a shorter lifespan
-
Growth of Stegophiura nodosa (Echinodermata, Ophiuroidea) in the Pechora Sea J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-11-25 Ekaterina A. Stratanenko; Stanislav G. Denisenko
The brittle star Stegophiura nodosa is one of the most abundant ophiuroid species living in Arctic seas and serves as a food resource for demersal fish. The study of autecological and biological patterns of S. nodosa is important for understanding the species reaction to environmental change. The growth features and growth rate of this brittle star from the Pechora Sea were estimated using the Gompertz
-
Otolith fluctuating asymmetry in Boops boops (Actinopterygii, Sparidae) from two marine stations (Bizerte and Kelibia) in Tunisian waters J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-11-09 Mouna Ben Labidi; Marwa Mejri; Adel A.A.B. Shahin; Jean-Pierre Quignard; Monia Trabelsi; Abderraouf Ben Faleh
For the first time, saccular otolith shape and size were analysed in 254 samples of the bogue Boops boops collected from the marine stations of Bizerte and Kelibia situated in north-east Tunisia. The objectives were (1) to examine the inter- and intra-population variation in the otolith shape and size, including length (Lo), width (Wo) and area (Ao) measurements, and (2) to assess the relationship
-
Redescription and molecular characterization of Crenidens macracanthus Günther, 1874 (Pisces: Sparidae), and first record of C. indicus Day, 1873 in the eastern Indian Ocean J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-10-28 Subal Kumar Roul; N. S. Jeena; Shubhadeep Ghosh; Prathibha Rohit
Crenidens macracanthus was originally described in 1874 based on a single specimen collected from Chennai (Madras), south-east coast of India. In 1875, the species was synonymized with C. indicus without citing any valid reason. Since then, no taxonomic studies have been attempted for the genus Crenidens, except in 2013 the species was resurrected from synonymy and redescribed as a valid species based
-
Reproductive seasonality and the gonadal maturation of silver pomfret Pampus argenteus in the Bay of Bengal, Bangladesh J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-11-16 Fatema Akhter; Md. Moudud Islam; Midori Iida; Md. Mahiuddin Zahangir
The silver pomfret (Pampus argenteus) is one of the most commercially important marine fish species in the Bay of Bengal, Indian Ocean. However, detailed information on the reproductive biology of silver pomfret is limited for the Bay of Bengal, Bangladesh. To understand their reproductive biology, especially the gonadal developmental cycle and spawning season, a total of 373 individuals were collected
-
First record of the Lessepsian fish Parexocoetus mento in Italian waters and GIS-based spatial and temporal distribution in Mediterranean Sea J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-10-29 Manuela Falautano; Patrizia Perzia; Luca Castriota
The Strait of Sicily in the middle of the Mediterranean Sea is considered a crossroads between the western and the eastern basins for species immigrating from the Atlantic Ocean and Lessepsian species. Among the latter, the African sailfin flyingfish Parexocoetus mento was recently collected from Lampedusa Island in November 2017, and represents the first documented record in Italian waters. In this
-
Influence of some physico-chemical variables on wild fish richness beneath sea-cage fish farms in the Aegean Sea, Turkey J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-11-06 Okan Akyol; Aytaç Özgül; F. Ozan Düzbastılar; Halil Şen; José M. Ortiz de Urbina; Tevfik Ceyhan
This study aims to determine the relationship between physico-chemical variables on a seasonal basis and wild fish assemblages beneath sea-cage fish farms. Assemblages of wild fish were counted monthly on two separate days at each of six fish farms between August 2015 and July 2017, by six rapid visual counts (RVC) in 5 minutes with scuba by two divers. Seawater samples were simultaneously taken by
-
Exploring the resident gut microbiota of stranded odontocetes: high similarities between two dolphin species Tursiops truncatus and Stenella coeruleoalba J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-10-29 Khaled F. A. Abdelrhman; Alice Ciofini; Giovanni Bacci; Cecilia Mancusi; Alessio Mengoni; Alberto Ugolini
The evaluation of symbiotic microbial communities occurring in the intestinal tract of animals has received great interest in recent years. However, little is known about gut microbial communities in cetaceans, despite their relevance in the ecology of marine communities. Here, we report an investigation using 16S rRNA gene amplicon sequencing of the resident gut microbiota of the two cetacean species
-
The standing stock and CaCO3 contribution of Halimeda macroloba in the tropical seagrass-dominated ecosystem in Dongsha Island, the main island of Dongsha Atoll, South China Sea J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-11-27 Jaruwan Mayakun; Chen-Pan Liao; Shao-Lun Liu
Calcareous green alga in the genus Halimeda are important contributors to the marine carbonate budget. Dongsha Island is located in the northernmost South China Sea and is a seagrass-dominated ecosystem with intermixed Halimeda macroloba patches, making it an excellent system to better examine the extent of carbonate contribution by H. macroloba in such an ecosystem. To this end, we examined the standing
-
Dirivultidae (Copepoda: Siphonostomatoida) from hydrothermal vent fields in the Okinawa Trough, North Pacific Ocean, with description of one new species J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-11-26 Daisuke Uyeno; Keiichi Kakui; Hiromi K. Watanabe; Yoshihiro Fujiwara
Two species of dirivultid copepod (Siphonostomatoida), Stygiopontius senckenbergi Ivanenko & Ferrari, 2013 and Dirivultus kaiko sp. nov., were discovered from hydrothermal vent fields in the Okinawa Trough, the western North Pacific. Since S. senckenbergi was originally described based on two adult males from the New Ireland Fore-Arc system, Papua New Guinea, the discovery here represents the second
-
Long-term insights into marine turtle sightings, strandings and captures around the UK and Ireland (1910–2018) J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-10-19 Zara L. R. Botterell; Rod Penrose; Matthew J. Witt; Brendan J. Godley
With over a century of records, we present a detailed analysis of the spatial and temporal occurrence of marine turtle sightings and strandings in the UK and Ireland between 1910 and 2018. Records of hard-shell turtles, including loggerhead turtles (Caretta caretta, N = 240) and Kemp's ridley turtles (Lepidochelys kempii, N = 61), have significantly increased over time. However, in the most recent
-
Lithology could affect benthic communities living below boulders J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-09-11 M. Canessa; G. Bavestrello; E. Trainito; A. Navone; R. Cattaneo-Vietti
Structure and diversity of sessile zoobenthic assemblages seem to be driven not only by chemical-physical constraints and biological interactions but also by substrate lithology and its surface features. Nevertheless, broadly distributed crustose epilithic corallines could mask the role of substrate on animal settling. To evaluate the direct influence of different rocky substrates, occurrence and coverage
-
Moonshine worms (Diopatra aciculata: Onuphidae, Annelida) in the Knysna Estuary, South Africa; taxonomy and distribution J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-09-25 H. van Rensburg; C. A. Matthee; C. A. Simon
Moonshine worms are a popular bait species used for fishing. The taxon was not detected during surveys of the macrobenthos conducted in Knysna in the 1940s and 1990s, and was first reported as a harvested bait species in the mid-2000s, suggesting that it appeared for the first time in the estuary in the last three decades. A previous molecular analysis identified the worms as Diopatra aciculata, a
-
Naticid drilling predation from tidal flats in northern Patagonia, SW Atlantic J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-10-28 Sandra Gordillo; Mariano E. Malvé; Gisela A. Morán; Gabriella M. Boretto
Naticids and muricids are the main drilling gastropod families that leave a characteristic hole in their shelled prey. Drilling predation can be evaluated along spatial scales, and different latitudinal patterns (equatorward, poleward, mid-latitude peaks or no trend at all) have already been described. For Argentine Patagonia, most studies have analysed muricid predation, but scant information is available
-
Paratectonatica tigrina (Gastropoda: Naticidae) adjusts its predation tactics depending on the chosen prey and their shell weight relative to its own J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-09-18 Fumio Takeshita; Takumi Maekawa
Paratectonatica tigrina employs three predatory tactics against bivalve prey: wall-drilling, edge-drilling and non-drilling (suffocation) tactics. In this study, we conducted laboratory experiments to examine the predator–prey interactions between the naticid gastropod P. tigrina and two species of bivalve prey, Ruditapes philippinarum and Meretrix lusoria, and to investigate how predatory tactics
-
First zoeal stage morphology of Alpheus carlae and A. intrinsecus (Decapoda, Caridea, Alpheidae) obtained in the laboratory J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-10-13 João Alberto Farinelli Pantaleão; Régis Augusto Pescinelli; Rogério Caetano Costa; Jose A. Cuesta; Fernando Luis Mantelatto
The first zoeal stages of the snapping shrimps Alpheus carlae and A. intrinsecus from Brazil were obtained from laboratory-hatched specimens and a detailed morphological description is provided. The morphological characteristics of both species are compared with available descriptions of other Alpheus species with a known first zoeal stage. Remarks from a semi-quantitative comparison of species belonging
-
Effects of flow velocity on fitness-related behaviours of the sea urchin Mesocentrotus nudus: new information on stock enhancement J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-10-07 Dongtao Shi; Donghong Yin; Yang Chen; Jiangnan Sun; Mingfang Yang; Yaqing Chang; Chong Zhao
The effects of flow velocity on the fitness-related behaviours of Mesocentrotus nudus remain largely unknown, greatly hampering the efficiency of stock enhancement. To explore the appropriate velocities for stock enhancement, we investigated dislodgement and immobilization velocities up to 90 cm s−1. The experimental results showed that M. nudus (test diameter of ~30 mm) were dislodged at 73.50 ± 7
-
Seasonal occurrence and vertical distribution of larval and juvenile northern smoothtongue, Leuroglossus schmidti (Pisces, Bathylagidae), in the western subarctic Pacific J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-09-24 Minoru Kitamura; Naofumi Murata
We investigated the seasonal occurrence and vertical distribution/migration of larval and juvenile northern smoothtongue, Leuroglossus schmidti (Pisces, Bathylagidae), in oceanic areas of the western subarctic Pacific. This species was the most abundant larval fish and one of the most abundant juvenile/adult fish at the study site. Larval recruitment of this species occurred in early March to mid-October
-
Use of stable isotopes in the evaluation of fish trophic guilds from a tropical hypersaline lagoon J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-10-29 Marcos A. L. Franco; Alejandra F. G. N. Santos; Abílio S. Gomes; Marcelo G. de Almeida; Carlos E. de Rezende
Environmental factors, size-related isotopic changes of the most abundant species and isotopic niche overlap were investigated using stable isotopes in order to evaluate spatial changes of fish trophic guilds in the Araruama Lagoon. Based on 440 muscle samples, 17 fish species were grouped into five trophic guilds. Mean salinity was above 40 at both sites sampled and a significant spatial difference
-
Life history parameters of the round sardinella Sardinella aurita in the Central East Atlantic off north-west Africa J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-09-10 Alba Jurado-Ruzafa; Eva Hernández; Verónica Duque-Nogal; Pedro J. Pascual-Alayón; M. Nazaret Carrasco; Alejandro Sancho; M. Teresa G. Santamaría
Sardinella aurita has become an important source of fish protein-intake in NW African countries, where one stock is considered from Morocco to south Senegal, performing seasonal reproductive migrations along the coast. Although data are limited for the fisheries involved and for life-history knowledge of the species in the area, a precautionary approach is recommended to avoid overexploitation. Commercial
-
Relationships between environmental factors and biological parameters of Asian wedge clam, Donax scortum, morphometric analysis, length-weight relationship and condition index: a first report in Asia – CORRIGENDUM J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-10-28 Yambem Tenjing Singh
Wedge clam, Donax scortum occurrence was studied from February 2009 to January 2010 in Padukere sandy beach, Karnataka (India). The following biological parameters were measured in 2367 individuals of the wedge clam, Donax scortum: length, breadth, width, total weight, shell weight, wet meat weight, dry meat weight and number of clams. The calculated linear equation of length-breadth and length-width
-
Sponge community variation along the Apulian coasts (Otranto Strait) over a pluri-decennial time span. Does water warming drive a sponge diversity increasing in the Mediterranean Sea? CORRIGENDUM J. Mar. Biol. Assoc. Uk (IF 1.181) Pub Date : 2020-09-30 Gabriele Costa; Maurizio Pansini; Marco Bertolino
Climate change and heavy anthropic pressures are giving rise to important modifications in the rocky benthic communities of the Mediterranean Sea. In particular, sponge assemblages have been deeply affected due to the susceptibility of some species to dramatic phenomena such as mass mortalities or widespread variations in the abundance of other species. For this reason, long-term biodiversity monitoring