Pub Date : 2022-03-04DOI: 10.1080/10236244.2022.2085571
S. Mallick, Heli J. Raval, R. Ghosal
In the biological world, group formation and affiliation to group members is a fascinating area of research as it contributes toward understanding the behavioral strategies of an organism (Parrish and Edelstein-Keshet 1999). Several behavioral studies on animals have been conducted to observe and understand patterns of social group formation, and to investigate the group dynamics under different ecological contexts (Rodgers et al. 2011; Gómez-Laplaza 2012). Among the vertebrate model systems, fish taxa are a popular choice to understand group living behavior (Couzin and Krause 2003). Group living in the form of shoaling and schooling behavior in fishes have been studied in depth (Camacho-Cervantes et al., 2019; Pitcher 1986; Krause et al. 2002; Couzin and Krause 2003; Sumpter et al. 2008; Huntingford and Ruiz-Gomez 2009; Gómez-Laplaza 2012; Meuthen et al. 2016), and it still remains one of the intriguing areas of research in the field of behavioral sciences (Kareklas et al. 2017; Miller 2017; Pouca and Brown 2017). A shoal is defined as an aggregation where the shoaling members maintain a nearest neighbor distance of 3–4 body lengths among each other (Clark and Evans 1954; Pitcher and Parrish 1993). Shoals are more social in nature (Pitcher 1983), and shoaling patterns are influenced by several factors, for example, size of the shoal (Krause et al. 1996), dietary preference (Morrell et al. 2007), phenotypic characteristics (Wong and Rosenthal 2005), developmental stages (Lee-Jenkins and Godin 2010), sex (Ruhl and McRobert 2005), and species identity (Griffiths and Magurran 1997) of the shoaling partners, and availability of resources (Ward et al. 2005), presence or absence of predators (Chivers et al. 1995), and even on physical properties of the aquatic habitat (Ward et al. 2007). Shoaling preferences vary across conditions (McRobert and Bradner 1998; Ward and Hart 2003), and it is generally believed that phenotypically homogenous shoals (Cattelan and Griggio 2020), for example, shoaling with conspecifics, are highly advantageous in terms of diluting predation risk and/or foraging for similar resources (Krause and Godin 1994). However, mixed-species shoaling is also common in fishes. Studies have shown that many fishes choose to shoal with either heteroor conspecifics based on the given
在生物界，群体的形成和与群体成员的联系是一个令人着迷的研究领域，因为它有助于理解生物体的行为策略(Parrish和edelstein - kesshet 1999)。为了观察和理解社会群体形成的模式，并调查不同生态环境下的群体动态，已经对动物进行了几项行为研究(Rodgers et al. 2011;Gomez-Laplaza 2012)。在脊椎动物模型系统中，鱼类分类群是理解群体生活行为的普遍选择(Couzin and Krause 2003)。以鱼群和鱼群行为形式存在的群体生活已被深入研究(camaco - cervantes et al.， 2019;投手1986;Krause et al. 2002;Couzin and Krause 2003;Sumpter et al. 2008;Huntingford and Ruiz-Gomez 2009;Gomez-Laplaza 2012;Meuthen et al. 2016)，它仍然是行为科学领域有趣的研究领域之一(Kareklas et al. 2017;米勒2017年;Pouca and Brown 2017)。浅滩被定义为一个集合，其中浅滩成员彼此之间保持3-4个身长的最近邻距离(Clark and Evans 1954;皮彻和帕里什1993)。浅滩在本质上更具社会性(Pitcher 1983)，浅滩模式受到几个因素的影响，例如，浅滩的大小(Krause et al. 1996)、饮食偏好(Morrell et al. 2007)、表型特征(Wong and Rosenthal 2005)、发育阶段(Lee-Jenkins and Godin 2010)、性别(Ruhl and McRobert 2005)、浅滩同伴的物种身份(Griffiths and Magurran 1997)和资源的可获得性(Ward et al. 2005)。捕食者的存在与否(Chivers et al. 1995)，甚至水生栖息地的物理特性(Ward et al. 2007)。不同条件下的浅滩偏好不同(mcrobert&bradner 1998;Ward and Hart 2003)，人们普遍认为，表型同质的鱼群(Cattelan and Griggio 2020)，例如，具有同种生物的鱼群在稀释捕食风险和/或觅食类似资源方面非常有利(Krause and Godin 1994)。然而，混合鱼群在鱼类中也很常见。研究表明，许多鱼类选择与异种或同种基于给定的浅滩
{"title":"Larger versus smaller heterospecifics: shoaling behavior in orange chromides, an endemic cichlid of the Indian subcontinent","authors":"S. Mallick, Heli J. Raval, R. Ghosal","doi":"10.1080/10236244.2022.2085571","DOIUrl":"https://doi.org/10.1080/10236244.2022.2085571","url":null,"abstract":"In the biological world, group formation and affiliation to group members is a fascinating area of research as it contributes toward understanding the behavioral strategies of an organism (Parrish and Edelstein-Keshet 1999). Several behavioral studies on animals have been conducted to observe and understand patterns of social group formation, and to investigate the group dynamics under different ecological contexts (Rodgers et al. 2011; Gómez-Laplaza 2012). Among the vertebrate model systems, fish taxa are a popular choice to understand group living behavior (Couzin and Krause 2003). Group living in the form of shoaling and schooling behavior in fishes have been studied in depth (Camacho-Cervantes et al., 2019; Pitcher 1986; Krause et al. 2002; Couzin and Krause 2003; Sumpter et al. 2008; Huntingford and Ruiz-Gomez 2009; Gómez-Laplaza 2012; Meuthen et al. 2016), and it still remains one of the intriguing areas of research in the field of behavioral sciences (Kareklas et al. 2017; Miller 2017; Pouca and Brown 2017). A shoal is defined as an aggregation where the shoaling members maintain a nearest neighbor distance of 3–4 body lengths among each other (Clark and Evans 1954; Pitcher and Parrish 1993). Shoals are more social in nature (Pitcher 1983), and shoaling patterns are influenced by several factors, for example, size of the shoal (Krause et al. 1996), dietary preference (Morrell et al. 2007), phenotypic characteristics (Wong and Rosenthal 2005), developmental stages (Lee-Jenkins and Godin 2010), sex (Ruhl and McRobert 2005), and species identity (Griffiths and Magurran 1997) of the shoaling partners, and availability of resources (Ward et al. 2005), presence or absence of predators (Chivers et al. 1995), and even on physical properties of the aquatic habitat (Ward et al. 2007). Shoaling preferences vary across conditions (McRobert and Bradner 1998; Ward and Hart 2003), and it is generally believed that phenotypically homogenous shoals (Cattelan and Griggio 2020), for example, shoaling with conspecifics, are highly advantageous in terms of diluting predation risk and/or foraging for similar resources (Krause and Godin 1994). However, mixed-species shoaling is also common in fishes. Studies have shown that many fishes choose to shoal with either heteroor conspecifics based on the given","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":"121 1","pages":"35 - 44"},"PeriodicalIF":1.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85257462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-02-17DOI: 10.1080/10236244.2022.2035223
Ashley B. Cleveland, C. Pomory
ABSTRACT Mellita tenuis occurs in large aggregations in the eastern Gulf of Mexico, and are. major bioturbators of sandy environments. In this laboratory study, M. tenuis were placed in a laboratory enclosure under varying treatments (Time of Day, Size, Predatory Cues, Feeding History, Density), and video recorded for 3–4 hr. Five variables were analyzed: time in forward plus rotational movement (Movement), time in forward movement alone (Progression), time covered by sand (Covered), distance moved (Distance), and how fast they moved (Speed). There was no diel rhythm pattern found for any of the variables studied amongst Time of Day treatments. Large individuals covered less often, moving further and nearly two times faster than small individuals. Neither Feeding History nor Predatory Cues had an effect. Lower density aggregations spent more time in Movement and Progression. Both larger and smaller individuals contribute to bioturbation activitiespotentially impacting the habitat across 24 hr.
{"title":"Movement and behavior of the sand dollar Mellita tenuis (Echinodermata: Echinoidea)","authors":"Ashley B. Cleveland, C. Pomory","doi":"10.1080/10236244.2022.2035223","DOIUrl":"https://doi.org/10.1080/10236244.2022.2035223","url":null,"abstract":"ABSTRACT Mellita tenuis occurs in large aggregations in the eastern Gulf of Mexico, and are. major bioturbators of sandy environments. In this laboratory study, M. tenuis were placed in a laboratory enclosure under varying treatments (Time of Day, Size, Predatory Cues, Feeding History, Density), and video recorded for 3–4 hr. Five variables were analyzed: time in forward plus rotational movement (Movement), time in forward movement alone (Progression), time covered by sand (Covered), distance moved (Distance), and how fast they moved (Speed). There was no diel rhythm pattern found for any of the variables studied amongst Time of Day treatments. Large individuals covered less often, moving further and nearly two times faster than small individuals. Neither Feeding History nor Predatory Cues had an effect. Lower density aggregations spent more time in Movement and Progression. Both larger and smaller individuals contribute to bioturbation activitiespotentially impacting the habitat across 24 hr.","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":"31 1","pages":"1 - 20"},"PeriodicalIF":1.0,"publicationDate":"2022-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84565165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-11-17DOI: 10.1080/10236244.2021.2009344
Alex Mauricio Mopán-Chilito, María José Tovar-Gil, John F. Aristizabal, Maribel Rojas-Montoya
ABSTRACT Escape decisions to predators are influenced by aspects such as prey’s visual perspective, in which visual cues are essential to detect and react to predators. Crabs use the visual sense to detect and scaling potential threats. Here, we evaluate the escaping response of free-ranging Pacific hermit crab (Coenobita compressus) after showing them stimuli differing in size and shapes that resemble potential threats. We conducted a field experiment on 150 individuals of Pacific hermit crab. The crab’s reaction time and distance was recorded with respect to five predator models (large bird, small bird, large square, small square, and null model), additionally, the shell size of each crab was measured. We found that crab reaction time and distance are influenced by the large bird and large square models while shell size had no effect. Our results suggest that Pacific hermit crabs in this population have the ability to discriminate predators and base their escape response depending on the size and shape of the predator.
{"title":"Safe or in danger? Time and distance of reaction in hermit crabs to a risk of predation","authors":"Alex Mauricio Mopán-Chilito, María José Tovar-Gil, John F. Aristizabal, Maribel Rojas-Montoya","doi":"10.1080/10236244.2021.2009344","DOIUrl":"https://doi.org/10.1080/10236244.2021.2009344","url":null,"abstract":"ABSTRACT Escape decisions to predators are influenced by aspects such as prey’s visual perspective, in which visual cues are essential to detect and react to predators. Crabs use the visual sense to detect and scaling potential threats. Here, we evaluate the escaping response of free-ranging Pacific hermit crab (Coenobita compressus) after showing them stimuli differing in size and shapes that resemble potential threats. We conducted a field experiment on 150 individuals of Pacific hermit crab. The crab’s reaction time and distance was recorded with respect to five predator models (large bird, small bird, large square, small square, and null model), additionally, the shell size of each crab was measured. We found that crab reaction time and distance are influenced by the large bird and large square models while shell size had no effect. Our results suggest that Pacific hermit crabs in this population have the ability to discriminate predators and base their escape response depending on the size and shape of the predator.","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":"32 1","pages":"263 - 272"},"PeriodicalIF":1.0,"publicationDate":"2021-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79156375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-11-17DOI: 10.1080/10236244.2021.2003195
G. Barord, Mohammed Beydoun, S. Bruce, Virginia Li, P. Ward, J. Basil
ABSTRACT Species of extant nautiluses (in Nautilus and Allonautilus) have been anecdotally described as opportunistic scavengers. Here, we examine foraging and scavenging behaviors of Nautilus in field and laboratory settings. Given that nautiluses are nektobenthic, solitary animals living in resource-limited habitats, we predict that odor is the predominant cue used to locate prey. Here, we show that nautiluses display a stereotyped set of search postures in the wild. In field and laboratory trials, nautiluses displayed the same stereotyped foraging postures, suggesting it is a natural and functional reflex in nautilus, and can be replicated under controlled conditions. A series of foraging behaviors induced by olfaction is a highly desirable trait to scavenge for food in the deep-sea. Considering the recent conservation initiatives and regulations now in place to protect declining nautilus populations, understanding and describing feeding behaviors and the ecology of nautiluses are a critical component to support conservation efforts.
{"title":"Foraging and scavenging in nautilus (Nautilus sp.) L. (Cl. Cephalopoda)","authors":"G. Barord, Mohammed Beydoun, S. Bruce, Virginia Li, P. Ward, J. Basil","doi":"10.1080/10236244.2021.2003195","DOIUrl":"https://doi.org/10.1080/10236244.2021.2003195","url":null,"abstract":"ABSTRACT Species of extant nautiluses (in Nautilus and Allonautilus) have been anecdotally described as opportunistic scavengers. Here, we examine foraging and scavenging behaviors of Nautilus in field and laboratory settings. Given that nautiluses are nektobenthic, solitary animals living in resource-limited habitats, we predict that odor is the predominant cue used to locate prey. Here, we show that nautiluses display a stereotyped set of search postures in the wild. In field and laboratory trials, nautiluses displayed the same stereotyped foraging postures, suggesting it is a natural and functional reflex in nautilus, and can be replicated under controlled conditions. A series of foraging behaviors induced by olfaction is a highly desirable trait to scavenge for food in the deep-sea. Considering the recent conservation initiatives and regulations now in place to protect declining nautilus populations, understanding and describing feeding behaviors and the ecology of nautiluses are a critical component to support conservation efforts.","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":"1 1","pages":"241 - 261"},"PeriodicalIF":1.0,"publicationDate":"2021-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82150604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-11-17DOI: 10.1080/10236244.2021.1993068
Ulises Hernández-Vidal, Wilfrido M. Contreras‐Sánchez, X. Chiappa-Carrara, A. Hernández-Franyutti, M. Uribe
ABSTRACT The common snook (C. undecimalis) is a highly valuable commercial and sport fishing species in marine, estuarine, and freshwater habitats. Despite its abundance in freshwater ecosystems, the information on the reproductive biology comes mainly from studies in the marine habitat. In this work, the reproductive cycle at the gametogenic and hormonal level is addressed in specimens captured in contrasting environments interconnected by the Grijalva-Usumacinta fluvial system. Adult common snook presented a similar temporal pattern in sex steroid concentrations in both environments. Likewise, females and males were observed undergoing advanced maturity simultaneously in both environments. However, females in the freshwater environment did not reach final maturation, and no post-ovulatory follicles were found, indicating that spawn did not happen. Therefore, organisms are synchronized with gonads developing in both habitats, implying migrations of at least 300 km from the freshwater environment to the spawning grounds in the Gulf of Mexico.
{"title":"Common snook reproductive physiology in freshwater and marine environments of Mexico","authors":"Ulises Hernández-Vidal, Wilfrido M. Contreras‐Sánchez, X. Chiappa-Carrara, A. Hernández-Franyutti, M. Uribe","doi":"10.1080/10236244.2021.1993068","DOIUrl":"https://doi.org/10.1080/10236244.2021.1993068","url":null,"abstract":"ABSTRACT The common snook (C. undecimalis) is a highly valuable commercial and sport fishing species in marine, estuarine, and freshwater habitats. Despite its abundance in freshwater ecosystems, the information on the reproductive biology comes mainly from studies in the marine habitat. In this work, the reproductive cycle at the gametogenic and hormonal level is addressed in specimens captured in contrasting environments interconnected by the Grijalva-Usumacinta fluvial system. Adult common snook presented a similar temporal pattern in sex steroid concentrations in both environments. Likewise, females and males were observed undergoing advanced maturity simultaneously in both environments. However, females in the freshwater environment did not reach final maturation, and no post-ovulatory follicles were found, indicating that spawn did not happen. Therefore, organisms are synchronized with gonads developing in both habitats, implying migrations of at least 300 km from the freshwater environment to the spawning grounds in the Gulf of Mexico.","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":"6 1","pages":"203 - 225"},"PeriodicalIF":1.0,"publicationDate":"2021-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84740677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-11-10DOI: 10.1080/10236244.2021.1997096
C. S. Nogueira, Abner Carvalho-Batista, S.S.A. Teodoro, R. C. Costa, João Alberto Farinelli Pantaleão
ABSTRACT Fights between individuals in a population can be motivated by several factors, such as disputes over food, shelter and sexual partners. The present study aimed to evaluate the pattern of injury occurrence in the Amazon River prawn (Macrobrachium amazonicum). Prawns and environmental factors were sampled monthly, from February 2012 to September 2013, in the Tietê River, São Paulo, Brazil. Individuals were classified into eight different demographic classes and analyzed macroscopically for body injuries, which were separated into four categories (0–4). From the 2,234 prawns collected, 124 presented one or more types of physical damages. The males of dominant castes presented the highest amount of injuries, suggesting that these groups get involved more frequently in disputes. Possibly, reproductive events are a strong stimulus for the occurrence of fights in freshwater prawns since the greatest amount of injuries was observed in the period of reproductive peaks.
{"title":"Body injuries in male morphotypes of the Amazon River prawn (Macrobrachium amazonicum)","authors":"C. S. Nogueira, Abner Carvalho-Batista, S.S.A. Teodoro, R. C. Costa, João Alberto Farinelli Pantaleão","doi":"10.1080/10236244.2021.1997096","DOIUrl":"https://doi.org/10.1080/10236244.2021.1997096","url":null,"abstract":"ABSTRACT Fights between individuals in a population can be motivated by several factors, such as disputes over food, shelter and sexual partners. The present study aimed to evaluate the pattern of injury occurrence in the Amazon River prawn (Macrobrachium amazonicum). Prawns and environmental factors were sampled monthly, from February 2012 to September 2013, in the Tietê River, São Paulo, Brazil. Individuals were classified into eight different demographic classes and analyzed macroscopically for body injuries, which were separated into four categories (0–4). From the 2,234 prawns collected, 124 presented one or more types of physical damages. The males of dominant castes presented the highest amount of injuries, suggesting that these groups get involved more frequently in disputes. Possibly, reproductive events are a strong stimulus for the occurrence of fights in freshwater prawns since the greatest amount of injuries was observed in the period of reproductive peaks.","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":"42 1","pages":"227 - 240"},"PeriodicalIF":1.0,"publicationDate":"2021-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76832219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-04DOI: 10.1080/10236244.2021.1993737
D. Wildish, S. Robinson, M. Black
ABSTRACT Locomotor activity rhythms of one hyalid and six talitrids were deterermined extending published rhythms to species in three new ecotopes previously not examined in this way: eulittoral – the hyalid, Apohyale prevosti (H. Milne Edwards 1830) with a circatidal rhythm, supralittoral/palustral – the talitrid, ‘Orchestia’ grillus Bosc 1802 and supralittoral/xylophagous talitrid, Macarorchestia remyi (Schellenberg 1950), where activity was random in both. A xylophagous-acclimated population of Platorchestia platensis (Krøyer 1845) living in a secondary ecotope also exhibited random activity. Endogenous diel rhthyms with maximum activity during darkness were present in the supralittoral wrack generalists [P. platensis and Orchestia gammarellus (Pallas 1766)] and sand-burrowing specialists [Americorchestia longicornis (Say 1818) and A. megalophthalma (Spence Bate 1862)]. The tentative order for talitrids examined here and in the literature, from high to low, in their susceptibility to passive, natural dispersal in wrack/driftwood is therefore as follows: O. gammarellus + P. platensis > O. mediterranea Costa 1853 > marsh-hoppers > sand-hoppers > driftwood-hoppers.
{"title":"Locomotor activity rhythms of North Atlantic coastal talitroids","authors":"D. Wildish, S. Robinson, M. Black","doi":"10.1080/10236244.2021.1993737","DOIUrl":"https://doi.org/10.1080/10236244.2021.1993737","url":null,"abstract":"ABSTRACT Locomotor activity rhythms of one hyalid and six talitrids were deterermined extending published rhythms to species in three new ecotopes previously not examined in this way: eulittoral – the hyalid, Apohyale prevosti (H. Milne Edwards 1830) with a circatidal rhythm, supralittoral/palustral – the talitrid, ‘Orchestia’ grillus Bosc 1802 and supralittoral/xylophagous talitrid, Macarorchestia remyi (Schellenberg 1950), where activity was random in both. A xylophagous-acclimated population of Platorchestia platensis (Krøyer 1845) living in a secondary ecotope also exhibited random activity. Endogenous diel rhthyms with maximum activity during darkness were present in the supralittoral wrack generalists [P. platensis and Orchestia gammarellus (Pallas 1766)] and sand-burrowing specialists [Americorchestia longicornis (Say 1818) and A. megalophthalma (Spence Bate 1862)]. The tentative order for talitrids examined here and in the literature, from high to low, in their susceptibility to passive, natural dispersal in wrack/driftwood is therefore as follows: O. gammarellus + P. platensis > O. mediterranea Costa 1853 > marsh-hoppers > sand-hoppers > driftwood-hoppers.","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":"66 1","pages":"181 - 202"},"PeriodicalIF":1.0,"publicationDate":"2021-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81099117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-04DOI: 10.1080/10236244.2021.1956863
Nur Ain Amani Abdul Mubin, M. G. G. Jonik, Nadthikphorn Kamphol, Zakia Sultana Juhi, Mahadi Mohammad, Sazlina Salleh
ABSTRACT Coral reefs in the Northern Straits of Malacca (NSoM), Malaysia, are frequently exposed to high concentrations of total suspended solids (TSS), thus reducing the light availability for photosynthesis. This study describes the photosynthetic performances of Porites lutea inhabiting contrasting habitats of Pulau Kendi, Pulau Songsong, and Pulau Payar in the NSoM. The light attenuation (Kd (PAR)) was significantly different between all sites, whereby highly turbid water of Pulau Kendi has the highest Kd (PAR) (m−1) = 0.8 ± 0.0 and TSS (mg/L) = 95.7 ± 2.5 in comparison to the protected reef in Pulau Payar, Kd (PAR) (m−1) = 0.5 ± 0.0 and TSS (mg/L) = 36.7 ± 0.4. Here, Pulse-Amplitude-Modulated fluorometry (PAM) and Rapid Light Curves (RLCs) indicate that P. lutea exhibits a different trend of photosynthetic performances to cope with in situ light availability. Turbid waters of Pulau Kendi were observed to provide some protection from light-induced photoinhibition whereby the maximum photosynthetic yield (F v /F m = 0.8 ± 0.0) was significantly higher than those in Pulau Payar and Pulau Songsong. This observation suggested that they could survive near darkness with low light availability for photosynthesis, but a significant reduction in photosynthetic capacity (rETRmax = 77.5 ± 7.4) was also observed. In contrast, greater photosynthetic capacities were observed in P. lutea inhabiting the high-light environment of Pulau Payar. This study emphasized that P. lutea can photoacclimate by maximizing light availability for photosynthesis to ensure survival in turbid nearshore environments.
马来西亚马六甲海峡北部(NSoM)的珊瑚礁经常暴露在高浓度的总悬浮固体(TSS)中，从而降低了光合作用的光利用率。本研究描述了生活在NSoM的Kendi岛、Songsong岛和Payar岛的不同生境的Porites lutea的光合作用表现。各地点的光衰减(Kd (PAR))差异显著，其中深地岛高浑浊水域的Kd (PAR) (m−1)为0.8±0.0,TSS (mg/L)为95.7±2.5，与帕亚岛受保护的珊瑚礁相比，Kd (PAR) (m−1)为0.5±0.0,TSS (mg/L)为36.7±0.4。在这里，脉冲振幅调制荧光法(PAM)和快速光曲线(rlc)表明，黄叶杨的光合性能表现出不同的趋势，以应对原位光利用率。肯地岛混浊水体对光抑制有一定的保护作用，最大光合产量(F v /F m = 0.8±0.0)显著高于巴雅岛和松松岛。这表明它们可以在光照不足的黑暗环境下存活，但光合能力显著降低(rETRmax = 77.5±7.4)。相比之下，生活在帕亚尔岛强光环境中的叶黄花的光合能力更强。本研究强调，叶黄藻可以通过最大化光合作用的光利用率来适应光环境，以确保在浑浊的近岸环境中生存。
{"title":"In situ photosynthetic performance of Porites lutea inhabiting contrasting habitats of the Northern Straits of Malacca (NSoM), Malaysia","authors":"Nur Ain Amani Abdul Mubin, M. G. G. Jonik, Nadthikphorn Kamphol, Zakia Sultana Juhi, Mahadi Mohammad, Sazlina Salleh","doi":"10.1080/10236244.2021.1956863","DOIUrl":"https://doi.org/10.1080/10236244.2021.1956863","url":null,"abstract":"ABSTRACT Coral reefs in the Northern Straits of Malacca (NSoM), Malaysia, are frequently exposed to high concentrations of total suspended solids (TSS), thus reducing the light availability for photosynthesis. This study describes the photosynthetic performances of Porites lutea inhabiting contrasting habitats of Pulau Kendi, Pulau Songsong, and Pulau Payar in the NSoM. The light attenuation (Kd (PAR)) was significantly different between all sites, whereby highly turbid water of Pulau Kendi has the highest Kd (PAR) (m−1) = 0.8 ± 0.0 and TSS (mg/L) = 95.7 ± 2.5 in comparison to the protected reef in Pulau Payar, Kd (PAR) (m−1) = 0.5 ± 0.0 and TSS (mg/L) = 36.7 ± 0.4. Here, Pulse-Amplitude-Modulated fluorometry (PAM) and Rapid Light Curves (RLCs) indicate that P. lutea exhibits a different trend of photosynthetic performances to cope with in situ light availability. Turbid waters of Pulau Kendi were observed to provide some protection from light-induced photoinhibition whereby the maximum photosynthetic yield (F v /F m = 0.8 ± 0.0) was significantly higher than those in Pulau Payar and Pulau Songsong. This observation suggested that they could survive near darkness with low light availability for photosynthesis, but a significant reduction in photosynthetic capacity (rETRmax = 77.5 ± 7.4) was also observed. In contrast, greater photosynthetic capacities were observed in P. lutea inhabiting the high-light environment of Pulau Payar. This study emphasized that P. lutea can photoacclimate by maximizing light availability for photosynthesis to ensure survival in turbid nearshore environments.","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":"12 1","pages":"149 - 167"},"PeriodicalIF":1.0,"publicationDate":"2021-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89497309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-04DOI: 10.1080/10236244.2021.1968300
G. Cabrera, A. Vignatti, S. Echaniz, A. Escalante
ABSTRACT Because temperature and salinity affect life cycle of copepods, the aim was to determine the influence of both factors upon postembryonic development ofBoeckella poopoensis. Bioassays with 5, 10, 20, 30, and 35 g/Lat 15° and 22°C were carried out. At 15°C, specimens needed 21-26 days to complete its development in the four lower salinities, but did not pass from naupliar stages in 35 g/L. At 22°C complete development fluctuated from 13 (5, 10, and 20 g/L) to 22 and 41 days (30 and 35 g/L). The greatest mortality was registered at higher salinities, especially at 15°C, as lower metabolism may not have contributed sufficient energy for osmoregulation. Though it is a halotolerant species, low temperatures could reduce its tolerance, suggesting that this factor would limit its distribution in South America (nowadays up to 43°S). Changes in these conditions due to global warming could allow its advancement to the South.
{"title":"Temperature and salinity effects on postembryonic development of the neotropical calanoid Boeckella poopoensis Marsh, 1906 (Crustacea, Copepoda)","authors":"G. Cabrera, A. Vignatti, S. Echaniz, A. Escalante","doi":"10.1080/10236244.2021.1968300","DOIUrl":"https://doi.org/10.1080/10236244.2021.1968300","url":null,"abstract":"ABSTRACT Because temperature and salinity affect life cycle of copepods, the aim was to determine the influence of both factors upon postembryonic development ofBoeckella poopoensis. Bioassays with 5, 10, 20, 30, and 35 g/Lat 15° and 22°C were carried out. At 15°C, specimens needed 21-26 days to complete its development in the four lower salinities, but did not pass from naupliar stages in 35 g/L. At 22°C complete development fluctuated from 13 (5, 10, and 20 g/L) to 22 and 41 days (30 and 35 g/L). The greatest mortality was registered at higher salinities, especially at 15°C, as lower metabolism may not have contributed sufficient energy for osmoregulation. Though it is a halotolerant species, low temperatures could reduce its tolerance, suggesting that this factor would limit its distribution in South America (nowadays up to 43°S). Changes in these conditions due to global warming could allow its advancement to the South.","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":"78 1","pages":"169 - 180"},"PeriodicalIF":1.0,"publicationDate":"2021-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80790017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-05-04DOI: 10.1080/10236244.2021.1953380
Bruno Camargo-dos-Santos, Vanessa Rossi, B. Gonçalves, J. C. Leutz, P. Giaquinto, Fábio Sabbadin Zanuzzo
ABSTRACT Catch-and-Release (C&R) practice may result in post-release mortality in fish. Therefore, most C&R studies have focused on endangered or highly valued target species, and less attention has been given to introduced/abundant species, which indeed are important from an ecological point of view. Nile tilapia is considered an introduced species in many areas and is a commonly caught species in recreational fisheries; therefore, understanding the impacts of C&R on tilapia is also important from an animal welfare perspective. We investigated whether C&R impacts the aggressive behavior and feeding responses of Nile tilapia, characteristics that impair the welfare and the ability of an individual to have success in its ecosystem. Surprisingly, C&R did not affect these responses, and our results suggest that Nile tilapia may be relatively more resilient to C&R, and that C&R practices may act as an additional selective force towards the ecological success of Nile tilapia as introduced species.
{"title":"The impact of catch-and-release on feeding responses and aggressive behavior in Nile tilapia (Oreochromis niloticus)","authors":"Bruno Camargo-dos-Santos, Vanessa Rossi, B. Gonçalves, J. C. Leutz, P. Giaquinto, Fábio Sabbadin Zanuzzo","doi":"10.1080/10236244.2021.1953380","DOIUrl":"https://doi.org/10.1080/10236244.2021.1953380","url":null,"abstract":"ABSTRACT Catch-and-Release (C&R) practice may result in post-release mortality in fish. Therefore, most C&R studies have focused on endangered or highly valued target species, and less attention has been given to introduced/abundant species, which indeed are important from an ecological point of view. Nile tilapia is considered an introduced species in many areas and is a commonly caught species in recreational fisheries; therefore, understanding the impacts of C&R on tilapia is also important from an animal welfare perspective. We investigated whether C&R impacts the aggressive behavior and feeding responses of Nile tilapia, characteristics that impair the welfare and the ability of an individual to have success in its ecosystem. Surprisingly, C&R did not affect these responses, and our results suggest that Nile tilapia may be relatively more resilient to C&R, and that C&R practices may act as an additional selective force towards the ecological success of Nile tilapia as introduced species.","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":"49 1","pages":"133 - 148"},"PeriodicalIF":1.0,"publicationDate":"2021-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90332447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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