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-Mimoblennius rusi is
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Citations
... We used discrete tidal zone coding from Hundt et al. (2014a;subtidal, intertidal, supralittoral, or freshwater), in which species that occur in both subtidal and intertidal habitats were coded as intertidal. We obtained the maximum reported SL for each species from scientific articles (Springer 1967;Lal Mohan 1968;Springer and Smith-Vaniz 1968;Smith-Vaniz 1971Springer 1972Springer , 1976Springer , 1988Springer and Gomon 1975;Springer and Spreitzer 1977;Williams 1990Williams , 1988Carlson 1992;Springer and Williams 1994;Neat and Locatello 2002;Bath 2008;_ Ilkyaz et al. 2008;Rangel and Mendes 2009;Hundt et al. 2014a,b;Platt et al. 2016) and FishBase (Froese and Pauly 2020). ...
Marine intertidal zones can be hasher and more dynamic than bordering subtidal zones, with extreme and temporally variable turbulence, water velocity, salinity, temperature, and dissolved oxygen levels. Contrasting environmental conditions and ecological opportunities in subtidal versus intertidal habitats may generate differing patterns of morphological diversity. In this study we used phylogenetic comparative methods, measurements of body length, and two-dimensional landmarks to characterize body shape and size diversity in combtooth blennies (Ovalentaria: Blenniidae) and test for differences in morphological diversity between intertidal, subtidal, and supralittoral zones. We found that subtidal combtooth blennies have significantly higher body shape disparity and occupy a region of morphospace three times larger than intertidal lineages. The intertidal morphospace was almost entirely contained within the subtidal morphospace, showing that intertidal combtooth blennies did not evolve unique body shapes. We found no significant differences in body size disparity between tidal zones, no correlations between body shape and tidal zone or body size and tidal zone, and no body shape convergence associated with tidal zone. Our findings suggest that a subset of combtooth blenny body shapes are suitable for life in both subtidal and intertidal habitats. Many species in regions of morphospace unique to subtidal combtooth blennies exhibit distinct microhabitat use, which suggests subtidal environments promoted morphological diversification via evolutionary microhabitat transitions. In contrast, limited intertidal body shape diversity may be due to strong selective pressures that constrained body shape evolution and environmental filtering that prevented colonization of intertidal zones by certain subtidal body shapes.
... It is well known that a large number of intertidal fishes stay in intertidal habitats only temporarily, most of which use the shelter in these narrow and more or less isolated habitats as juveniles, but move to deeper water once they reach the adult stage. This can be observed in mangrove areas (Nagelkerken et al. 2000, Laegdsgaard and Johnson 2001, Ikejima et al. 2003, Mumby et al. 2004, Jaxion-Harm et al. 2012) and estuaries (Miller et al. 1985, Able 2005, Vasconcelos et al. 2008, Figueiredo and Pessanha 2016, in which vegetated habitats within estuaries tend to harbour higher densities of many fish species than unvegetated substrates (Sogard 1992). ...
Intertidal fishes are found in large numbers and play an important role in their ecosystems, but knowledge of their ecology is still very limited in many tropical regions. Within this context, data from intertidal fishes in Mauritius were compiled from different sources and intertidal resident species were examined in Mauritian tidepools. A total of 292 fish species occurring in Mauritius were reported from intertidal habitats, of which 62 species represent permanent intertidal residents. The species number in the studied pools increased, not only with the proportion of stones and rock covering the pool bottom, but also with pool facilities, for example, the supply of boulders and a high coverage of macro-algae. All examined pools were dominated by two species, Bathygobius coalitus and Istiblennius edentulus. Their abundance increased with decreasing pool size, peaking in pools with a surface area between 1-2 m during the lowest level of ebb tide. This 'overcrowding effect' may be linked to the absence of predators in these very small pools. The comparison of present data with results of a survey made in the same area in 1995 suggested a decrease of resident species occurred during the last decades, probably linked to human influences, such as eutrophication and water pollution.
... Blennies were separated into one of four habitat types (subtidal, intertidal, supralittoral, and freshwater) based on a combination of data gathered from FishBase (Froese and Pauly, 2013), literature (Almada and Santos, 1995;Crabtree and Middaugh, 1982;Domingues et al., 2008;Duci et al., 2009;Griffiths et al., 2003;Nakabo, 2000;Springer, 1967Springer, , 1976Springer and Spreitzer, 1978) and personal observations made by the authors. Species recorded from both subtidal and intertidal habitats were placed in the intertidal category. ...
The combtooth blennies (f. Blenniidae) is a diverse family of primarily marine fishes with approximately 387 species that inhabit subtidal, intertidal, supralittoral habitats in tropical and warm temperate regions throughout the world. The Blenniidae has typically been divided into six groups based on morphological characters: Blenniini, Nemophini, Omobranchini, Phenablenniini, Parablenniini, and Salariini. There is, however, considerable debate over the validity of these groups and their relationships. Since little is known about the relationships in this group, other aspects of their evolutionary history, such as habitat evolution, remain unexplored. Herein, we use Bayesian and maximum likelihood analyses of four nuclear loci (ENC1, myh6, ptr, and tbr1) from 102 species, representing 41 genera, to resolve the phylogeny of the Blenniidae, determine the validity of the previously recognized groupings, and explore the evolution of habitat association using ancestral state reconstruction. Bayesian and maximum likelihood analyses of the resulting 3128 bp of DNA sequence produced nearly identical topologies, and identified many well-supported clades. Of these clades, Nemophini was the only traditionally recognized group strongly supported as monophyletic. This highly resolved and thoroughly sampled blenniid phylogeny provides strong evidence that the traditional rank-based classification does not adequately delimit monophyletic groups with the Blenniidae. This phylogeny redefines the taxonomy of the group and supports the use of 13 unranked clades for the classification of blenniids. Ancestral state reconstructions identified four independent invasions of intertidal habitats within the Blenniidae, and subsequent invasions into supralittoral and freshwater habitats from these groups. The independent invasions of intertidal habitats are likely to have played an important role in the evolutionary history of blennies.
... The new Alloblennius is the fifth species of the genus and its occurrence in the northeastern Indian Ocean is notable because the genus was previously known only from the western Indian Ocean and Red Sea. Alloblennius jugularis (Klunzinger 1871) is known from only from the Gulf of Aqaba and Red Sea; A. pictus (Lotan 1970) occurs in the Gulf of Aqaba, Red Sea and Djibouti, Gulf of Tadjoura; A. parvus Springer and Spreitzer 1978 has the widest distribution and is known from the Comoro Is., Mauritius, Madagascar, South Africa (Sodwana Bay), Mosambique and southern Oman (Kuria Muria Is.); and A. anuchalis (Springer and Spreitzer 1978), is known from only five specimens (Springer et al. 1998), three from Mauritius and two from the southern Arabian Sea (coast of Oman). ...
... The new Alloblennius is the fifth species of the genus and its occurrence in the northeastern Indian Ocean is notable because the genus was previously known only from the western Indian Ocean and Red Sea. Alloblennius jugularis (Klunzinger 1871) is known from only from the Gulf of Aqaba and Red Sea; A. pictus (Lotan 1970) occurs in the Gulf of Aqaba, Red Sea and Djibouti, Gulf of Tadjoura; A. parvus Springer and Spreitzer 1978 has the widest distribution and is known from the Comoro Is., Mauritius, Madagascar, South Africa (Sodwana Bay), Mosambique and southern Oman (Kuria Muria Is.); and A. anuchalis (Springer and Spreitzer 1978), is known from only five specimens (Springer et al. 1998), three from Mauritius and two from the southern Arabian Sea (coast of Oman). ...
... In her original description of Alloblennius pictus, Lotan (1970) also incorrectly assigned her new species to Rhabdoblennius. In their paper describing Alloblennius parvus and Antennablennius anuchalis, Springer and Spreitzer (1978) stated that the generic assignment of A. anuchalis (then known only from the holotype) was provisional; they also said there was a possibility that it either should be assigned to Alloblennius or, because of the possible intermediate nature of the species' characters, Alloblennius should be synonymized with Antennablennius. In a subsequent revision of Antennablennius, Bath (1983) determined that A. anuchalis was in fact a species of Alloblennius, primarily because it lacks canines posteriorly on each side of the lower jaw, which are present in all species of Antennablennius. ...
A new species of blenniid fish, tribe Salariini, is described based on a 23.8 mm SL specimen collected from the Andaman Islands, eastern Indian Ocean. It differs from other species of Alloblennius in having a pinnately branched supraorbital cirrus about equal to eye diameter in height; lower jaws with relatively large, darkly pigmented labial flap anteriorly on each side of chin; pectoral fin with 10 or 11 distinct, small dark spots; and anteriormost preopercular pore position with a vertical pair of pores. The distribution of the new species is notable because the four previously described species of the genus are known only from the western Indian Ocean and Red Sea. A table comparing the five species of Alloblennius is presented.
Based on new data and numerous literature sources we present a list of coastal fishes of the Arabian
Sea found at depths up to 500 m which includes 1769 species from 720 genera and 198 families. Brief characteristics
of families are provided, as well as their overall composition and that of the region studied. The most
abundant taxa are noted. The species composition of the coastal zone of the Arabian Sea is compared to that of
the Red Sea, South Africa, and tropical Atlantic. The ichthyofauna is classified according to types of distribution,
endemic species are reviewed and zoogeographic partitioning of the North-Western part of the Indian
Ocean is considered.
